Temperature Measurement, Instrumentation and Control
At Centro, we carry a complete selection of temperature measurement, instrumentation, and control devices to suit any industrial or commercial application. For various reasons, temperature measurement, instrumentat...
Categories in Temperature Measurement, Instrumentation & Control - Temperature Monitoring (11)
Thermometers
Thermometers are instruments used for measuring temperature. They provide accurate temperature readings in various applications, including HVAC systems, laboratory settings, industrial processes, or environmental monitoring. Thermometers utilize different technologies, such as bimetallic, liquid-in-glass, digital, or infrared, to measure temperature ranges from low to high. They offer versatility, portability, and accuracy, enabling effective temperature measurement and control in diverse settings.
Thermocouples and RTDs
Thermocouples and RTDs (Resistance Temperature Detectors) are types of temperature sensors widely used for temperature measurement in industrial processes, HVAC systems, or scientific research. Thermocouples consist of two dissimilar metal wires, generating a voltage proportional to the temperature difference between the sensing junction and the reference junction. RTDs, on the other hand, are temperature sensors with a defined resistance that changes with temperature. Thermocouples and RTDs offer accuracy, reliability, and compatibility with different temperature ranges and environmental conditions, providing precise temperature measurement in diverse applications.
Temperature Switches
Temperature switches are versatile control devices that monitor temperature levels and trigger actions based on predefined thresholds. These switches find applications in various industries, including HVAC, manufacturing, and food processing. When a specific temperature is reached, temperature switches can initiate cooling, heating, or alarming processes, ensuring safety and operational efficiency. They are essential for maintaining temperature control and enhancing process automation in diverse applications.
Temperature Controllers
Temperature controllers are devices used to maintain and regulate precise temperatures in different processes and environments. Temperature controllers monitor the temperature of a system and compare it to a set point, making necessary adjustments by activating heating or cooling mechanisms to achieve the desired temperature. They are widely used in applications such as manufacturing, HVAC systems, food processing, and laboratory environments. Temperature Controllers help improve product quality, enhance energy efficiency, and reduce operational costs. Modern temperature controllers often come with advanced features like digital displays, programmable settings, and remote monitoring capabilities, making them versatile and user-friendly tools for maintaining optimal temperature conditions.Browse our selection below or contact us to speak with a product expert.
Temperature Recording
Temperature recording products are essential for ensuring precision and compliance in industries where temperature monitoring is critical. From data loggers to smart sensors, these innovative devices enable real-time temperature tracking and data collection. Whether for pharmaceuticals, food storage, or industrial processes, temperature recording products provide the accuracy and peace of mind needed to maintain product quality and safety standards.
Temperature Transmitters
Transmitters, in the context of sensors, refer to devices that convert the sensor's analog or digital output into a standardized electrical signal for transmission over long distances. They amplify, filter, and condition the sensor signal, ensuring accurate and reliable transmission to monitoring or control systems. Transmitters enable remote monitoring, data acquisition, or integration with control systems in various applications such as industrial automation, process control, or environmental monitoring. They play a crucial role in maintaining signal integrity, minimizing noise, and ensuring seamless communication between sensors and monitoring systems.
Temperature Accessories
Temperature accessories for industrial instrumentation are specialized components that support accurate and reliable temperature measurement and control in process systems.
Heat Exchangers
Heat exchangers are used to transfer heat between two or more fluids, often without mixing them. Heat exchangers facilitate efficient heat transfer in various industrial processes, HVAC systems, and renewable energy applications. Heat exchangers come in different types, including shell and tube, plate, and air-to-air, each suitable for different operating conditions and fluid types. Browse our selection below or contact us to speak with a product expert.
Thermowells
Thermowells are protective enclosures or fittings that house temperature sensors in industrial processes. They provide a barrier between the sensor and the process media, protecting against corrosive fluids, high-pressure environments, or mechanical stresses. Thermowells facilitate easy sensor installation, replacement, or maintenance without interrupting the process. They ensure accurate temperature measurement and prolong the lifespan of temperature sensors, making them essential components in industries such as chemical processing, oil and gas, power generation, or food and beverage.
Temperature Sensors
Temperature sensors are used to measure and monitor temperature levels in various applications. Temperature sensors detect and convert temperature changes into electrical signals, which are then used for temperature control, monitoring, and data logging purposes. Browse our selection below or contact us to speak with a product expert.
Temperature Regulators
Temperature regulators are devices used to maintain precise temperature levels in industrial processes and equipment. They monitor temperature variations and adjust heating or cooling mechanisms to keep temperatures within desired ranges. Temperature regulators are important in industries such as manufacturing, food processing, and HVAC systems, ensuring consistent product quality, energy efficiency, and operational safety. Browse our selection below or contact us to speak to a product expert.
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Part number 76-4J2 from Trerice is a Thermowell - 3/4 NPT Thread. This product serves professionals across HVAC, process control, and pharmaceutical sectors. Backed by Trerice's commitment to quality, the 76-4J2 is built to perform under real-world conditions. It is designed to comply with applicable ASME and NIST requirements.
$45.65$79.25
In Stock (156)Ships within 1 business day
The Trerice 76-4J5 is a Thermowell - 3/4 NPT Thread. It is commonly found in HVAC, pharmaceutical, and chemical processing applications. The 76-4J5 reflects Trerice's long-standing reputation for quality and innovation. It is designed to comply with applicable NIST and ASME requirements.
$53.28$92.50
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 76-4J6 from Trerice is a Thermowell - 3/4 NPT Thread. It is commonly found in HVAC, process control, and chemical processing applications. Backed by Trerice's commitment to quality, the 76-4J6 is built to perform under real-world conditions. This product meets relevant ASME and NIST standards.
$65.67$114.00
In Stock (143)Ships within 1 business day
The 76-4JC2 from Trerice is a Thermowell - 3/4 NPT Thread. Typical applications span process control, power generation, and pharmaceutical environments. The 76-4JC2 reflects Trerice's long-standing reputation for quality and innovation. This product meets relevant ASME and NIST standards.
$45.65$79.25
In Stock (226)Ships within 1 business day
Engineered by Trerice, the 76-4JC5 is a Thermowell - 3/4 NPT Thread. This product serves professionals across chemical processing, food and beverage, and HVAC sectors. The 76-4JC5 reflects Trerice's long-standing reputation for quality and innovation.
$53.28$92.50
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 76-4JC6 from Trerice is a Thermowell - 3/4 NPT Thread. Typical applications span process control, food and beverage, and HVAC environments. As a leader in temperature and pressure measurement instruments, Trerice manufactures every component to exacting standards. It is designed to comply with applicable ASME and NIST requirements.
$65.67$114.00
In Stock (99)Ships within 1 business day
Part number 76-4M2 from Trerice is a Thermowell - 3/4 NPT Thread. It is commonly found in process control, pharmaceutical, and chemical processing applications. Backed by Trerice's commitment to quality, the 76-4M2 is built to perform under real-world conditions.
$78.34$136.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The Trerice 76-4M5 is a Thermowell - 3/4 NPT Thread. Typical applications span power generation, process control, and HVAC environments. Trerice products are trusted by engineers and specifiers worldwide.
$107.14$186.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
Part number 76-4M6 from Trerice is a Thermowell - 3/4 NPT Thread. This product serves professionals across power generation, food and beverage, and HVAC sectors. Backed by Trerice's commitment to quality, the 76-4M6 is built to perform under real-world conditions. It is designed to comply with applicable NIST and ASME requirements.
$115.78$201.00
In Stock (170)Ships within 1 business day
The 76-4ME2 from Trerice is a Thermowell - 3/4 NPT Thread. Typical applications span HVAC, process control, and chemical processing environments. Trerice products are trusted by engineers and specifiers worldwide. It is designed to comply with applicable NIST and ASME requirements.
$78.34$136.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The Trerice 76-4ME5 is a Thermowell - 3/4 NPT Thread. Typical applications span power generation, chemical processing, and food and beverage environments. Trerice products are trusted by engineers and specifiers worldwide.
$107.14$186.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
Part number 76-4ME6 from Trerice is a Thermowell - 3/4 NPT Thread. This product serves professionals across HVAC, food and beverage, and power generation sectors. Backed by Trerice's commitment to quality, the 76-4ME6 is built to perform under real-world conditions. It is designed to comply with applicable NIST and ASME requirements.
$115.78$201.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
Engineered by Trerice, the 76-5G2 is a Thermowell - 1.0 NPT Thread. Typical applications span pharmaceutical, process control, and HVAC environments. The 76-5G2 reflects Trerice's long-standing reputation for quality and innovation. This product meets relevant NIST and ASME standards.
$55.16$95.75
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The Trerice 76-5GA2 is a Thermowell - 1.0 NPT Thread. This product serves professionals across HVAC, pharmaceutical, and chemical processing sectors. The 76-5GA2 reflects Trerice's long-standing reputation for quality and innovation.
$55.16$95.75
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
Engineered by Trerice, the 76-5GA5 is a Thermowell - 1.0 NPT Thread. This product serves professionals across process control, chemical processing, and food and beverage sectors. The 76-5GA5 reflects Trerice's long-standing reputation for quality and innovation. It is designed to comply with applicable NIST and ASME requirements.
$65.67$114.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 76-5GA6 from Trerice is a Thermowell - 1.0 NPT Thread. It is commonly found in chemical processing, HVAC, and pharmaceutical applications. Trerice products are trusted by engineers and specifiers worldwide. This product meets relevant NIST and ASME standards.
$70.28$122.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$677.38$1,176.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$800.07$1,389.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$1,124.93$1,953.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$677.38$1,176.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$969.41$1,683.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$1,573.64$2,732.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$1,285.06$2,231.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$969.41$1,683.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
Part number 76-4J2 from Trerice is a Thermowell - 3/4 NPT Thread. This product serves professionals across HVAC, process control, and pharmaceutical sectors. Backed by Trerice's commitment to quality, the 76-4J2 is built to perform under real-world conditions. It is designed to comply with applicable ASME and NIST requirements.
$45.65$79.25
In Stock (156)Ships within 1 business day
The Trerice 76-4J5 is a Thermowell - 3/4 NPT Thread. It is commonly found in HVAC, pharmaceutical, and chemical processing applications. The 76-4J5 reflects Trerice's long-standing reputation for quality and innovation. It is designed to comply with applicable NIST and ASME requirements.
$53.28$92.50
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 76-4J6 from Trerice is a Thermowell - 3/4 NPT Thread. It is commonly found in HVAC, process control, and chemical processing applications. Backed by Trerice's commitment to quality, the 76-4J6 is built to perform under real-world conditions. This product meets relevant ASME and NIST standards.
$65.67$114.00
In Stock (143)Ships within 1 business day
The 76-4JC2 from Trerice is a Thermowell - 3/4 NPT Thread. Typical applications span process control, power generation, and pharmaceutical environments. The 76-4JC2 reflects Trerice's long-standing reputation for quality and innovation. This product meets relevant ASME and NIST standards.
$45.65$79.25
In Stock (226)Ships within 1 business day
Engineered by Trerice, the 76-4JC5 is a Thermowell - 3/4 NPT Thread. This product serves professionals across chemical processing, food and beverage, and HVAC sectors. The 76-4JC5 reflects Trerice's long-standing reputation for quality and innovation.
$53.28$92.50
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 76-4JC6 from Trerice is a Thermowell - 3/4 NPT Thread. Typical applications span process control, food and beverage, and HVAC environments. As a leader in temperature and pressure measurement instruments, Trerice manufactures every component to exacting standards. It is designed to comply with applicable ASME and NIST requirements.
$65.67$114.00
In Stock (99)Ships within 1 business day
Part number 76-4M2 from Trerice is a Thermowell - 3/4 NPT Thread. It is commonly found in process control, pharmaceutical, and chemical processing applications. Backed by Trerice's commitment to quality, the 76-4M2 is built to perform under real-world conditions.
$78.34$136.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The Trerice 76-4M5 is a Thermowell - 3/4 NPT Thread. Typical applications span power generation, process control, and HVAC environments. Trerice products are trusted by engineers and specifiers worldwide.
$107.14$186.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
Part number 76-4M6 from Trerice is a Thermowell - 3/4 NPT Thread. This product serves professionals across power generation, food and beverage, and HVAC sectors. Backed by Trerice's commitment to quality, the 76-4M6 is built to perform under real-world conditions. It is designed to comply with applicable NIST and ASME requirements.
$115.78$201.00
In Stock (170)Ships within 1 business day
The 76-4ME2 from Trerice is a Thermowell - 3/4 NPT Thread. Typical applications span HVAC, process control, and chemical processing environments. Trerice products are trusted by engineers and specifiers worldwide. It is designed to comply with applicable NIST and ASME requirements.
$78.34$136.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The Trerice 76-4ME5 is a Thermowell - 3/4 NPT Thread. Typical applications span power generation, chemical processing, and food and beverage environments. Trerice products are trusted by engineers and specifiers worldwide.
$107.14$186.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
Part number 76-4ME6 from Trerice is a Thermowell - 3/4 NPT Thread. This product serves professionals across HVAC, food and beverage, and power generation sectors. Backed by Trerice's commitment to quality, the 76-4ME6 is built to perform under real-world conditions. It is designed to comply with applicable NIST and ASME requirements.
$115.78$201.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
Engineered by Trerice, the 76-5G2 is a Thermowell - 1.0 NPT Thread. Typical applications span pharmaceutical, process control, and HVAC environments. The 76-5G2 reflects Trerice's long-standing reputation for quality and innovation. This product meets relevant NIST and ASME standards.
$55.16$95.75
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The Trerice 76-5GA2 is a Thermowell - 1.0 NPT Thread. This product serves professionals across HVAC, pharmaceutical, and chemical processing sectors. The 76-5GA2 reflects Trerice's long-standing reputation for quality and innovation.
$55.16$95.75
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
Engineered by Trerice, the 76-5GA5 is a Thermowell - 1.0 NPT Thread. This product serves professionals across process control, chemical processing, and food and beverage sectors. The 76-5GA5 reflects Trerice's long-standing reputation for quality and innovation. It is designed to comply with applicable NIST and ASME requirements.
$65.67$114.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 76-5GA6 from Trerice is a Thermowell - 1.0 NPT Thread. It is commonly found in chemical processing, HVAC, and pharmaceutical applications. Trerice products are trusted by engineers and specifiers worldwide. This product meets relevant NIST and ASME standards.
$70.28$122.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$677.38$1,176.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$800.07$1,389.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$1,124.93$1,953.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$677.38$1,176.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$969.41$1,683.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$1,573.64$2,732.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$1,285.06$2,231.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
The 91000 Series Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection. Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in bronze, cast iron, cast steel and stainless steel constructions. The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
$969.41$1,683.00
Should ship between 18 Nov and 02 Dec
Subject to factory lead times
FAQS
- Industrial temperature measurement uses sensors inserted into or mounted on the process to convert thermal energy into a readable signal. The most common sensor types are thermocouples (two dissimilar metal wires joined at a tip that generate a small voltage proportional to temperature — rugged, inexpensive, and covering the widest range from cryogenic to over 3,000°F), RTDs (Resistance Temperature Detectors — a platinum element whose resistance changes predictably with temperature, offering higher accuracy and stability than thermocouples but at a higher cost and a narrower range up to ~1,200°F), and bimetal thermometers (a mechanical dial indicator using a coiled bimetallic strip — no power required, used for local visual indication). For non-contact measurement, infrared pyrometers measure emitted thermal radiation and are used where sensors cannot physically touch the target. The sensor output is typically sent through a temperature transmitter that converts it to a standard 4–20 mA signal for the PLC or DCS.
- Thermocouples and RTDs are both sensors that measure temperature, but they work differently and have distinct strengths. A thermocouple generates a millivolt signal based on the temperature difference between its measuring junction and the reference junction — it is self-powered, very rugged, responds quickly, and covers an extremely wide temperature range (some types reach 3,200°F+). However, thermocouple accuracy is typically ±1–2°C and the signal can drift over time. An RTD uses a precision platinum element whose electrical resistance increases linearly with temperature — it provides much better accuracy (±0.1–0.5°C), excellent long-term stability, and a more linear signal, but it costs more, is more fragile, requires an excitation current, and is limited to about 1,200°F. Choose a thermocouple when you need wide range, fast response, or low cost in harsh environments. Choose an RTD when accuracy and stability are the priority, especially in the –200°F to 1,000°F range.
- Thermocouple types are designated by letter (J, K, T, E, N, R, S, B) and each has a different temperature range, accuracy, and chemical compatibility. Type K (chromel-alumel) is the most widely used general-purpose thermocouple — it covers –328°F to 2,282°F and works well in oxidizing atmospheres. Type J (iron-constantan) is popular for lower-temperature applications up to about 1,400°F and is common in plastics, rubber, and older equipment, but it is not suitable for oxidizing environments above 1,000°F because the iron wire oxidizes. Type T (copper-constantan) offers excellent accuracy at low temperatures down to –328°F and is used in food, pharmaceutical, and cryogenic applications. For very high temperatures (up to 3,200°F), noble metal types R, S, and B use platinum-rhodium wires but are expensive. Select the type based on your temperature range, the atmosphere or media the thermocouple will be exposed to, the required accuracy, and compatibility with your existing instrumentation.
- A temperature transmitter is a device that converts the low-level signal from a thermocouple or RTD into a standard, noise-immune output signal — typically 4–20 mA analog or a digital protocol like HART — that can be transmitted over long cable runs to a PLC, DCS, or recorder. Without a transmitter, the raw millivolt signal from a thermocouple is very susceptible to electrical noise, especially in industrial environments with VFDs, motors, and welding equipment nearby. A transmitter amplifies and conditions the signal close to the sensor, dramatically improving signal integrity and measurement accuracy. Transmitters also provide linearization (correcting the non-linear thermocouple signal), cold-junction compensation, sensor burnout detection, and diagnostic information. You need a transmitter whenever the distance between the sensor and the control system is more than a few feet, when accuracy matters, or when you need to integrate the temperature signal into a 4–20 mA loop or digital fieldbus network.
- A temperature switch is a device that opens or closes an electrical contact when the measured temperature reaches a preset value — it provides a simple on/off signal rather than a continuous measurement. Temperature switches are used for protection and alarm functions where you need to trigger an action at a specific temperature threshold: shutting down a motor if bearing temperature exceeds a limit, activating a cooling fan when a cabinet gets too hot, triggering an alarm if a tank heater overheats, or interlocking a process to prevent operation outside safe temperature limits. Use a temperature switch when you only need to know whether temperature is above or below a set point and need a reliable, independent safety device. Use a transmitter when you need to continuously monitor the actual temperature value, trend it over time, or feed it into a control loop. In many critical applications, both are used together — a transmitter for monitoring and control, and an independent temperature switch as a safety backup.