Valves - Dwyer

Valves control, regulate, or direct the flow of fluids, such as water, gas, and other substances. They work by opening, closing, or obstructing passageways using flaps or other movable parts. There are three main t...

Categories from Dwyer (11)
Solenoid Valves

Solenoid valves provide fast, reliable on/off control of liquids and gases by utilizing an electric coil to actuate the valve. Compact and efficient, they integrate seamlessly into automated systems for applications such as cooling, lubrication, chemical dosing, and process isolation. Available in a variety of materials and designs to handle different pressures, temperatures, and media.

Ball Valves

Centro offers a reliable selection of ball valves or flow control valves designed for smooth operation and long-lasting performance in a wide range of applications. These quarter-turn valves provide tight shutoff capabilities, making them ideal for use in fluid systems requiring low torque and minimal leakage.


Ball Valves are available in a variety of materials including brass, stainless steel, and PVC, our solutions support industrial needs. Whether you're managing water, oil, gas, or chemical flow, Centro's valve options ensure durability and precise control.


With configurations ranging from full port to reduced port and options for 1-piece, 2-piece, and 3-piece designs, we provide flexibility for everything from general plumbing to high-pressure industrial systems.


Explore our complete range of ball valves to find the right fit for your application or contact our experts for personalized guidance.


Diaphragm Valves

Diaphragm valves are designed to regulate the flow of liquids and gases by using a flexible diaphragm to create a secure seal. These valves are ideal for applications where the transported media is corrosive, abrasive, or requires sanitary handling. Their simple yet effective design minimizes the risk of contamination, making them widely used in industries such as chemical processing, pharmaceuticals, food and beverage, and water treatment.


Centro offers a comprehensive selection of diaphragm valves in manual and pneumatic actuated designs to suit various operational needs. Whether you require precise hand-operated flow control or an automated valve for high-efficiency processing, we have the right solution.

Types of Diaphragm Valves We Offer

  • Manual Diaphragm Valves – Hand-operated for precise control in low-pressure systems
  • Pneumatic Actuated Diaphragm Valves – Use compressed air for automated on/off operation
  • Weir-Type Diaphragm Valves – Provide excellent sealing for corrosive and particulate-laden fluids
  • Straight-Through Diaphragm Valves – Offer minimal flow resistance for high-purity applications
  • Sanitary Diaphragm Valves – Designed for hygienic industries, including food, beverage, and pharmaceuticals

Why Choose Diaphragm Valves from Centro?

  • Superior sealing performance for corrosive, abrasive, and sanitary applications
  • Available in a variety of materials, including stainless steel, plastic, and lined options
  • Suitable for industries such as chemical processing, pharmaceuticals, biotechnology, and water treatment
  • Sourced from trusted manufacturers to ensure durability, reliability, and compliance with industry standards


Centro provides high-quality diaphragm valves designed for long-lasting performance. Browse our selection and order online today, or contact our team for expert assistance in selecting the right valve for your application.

Needle Valves

Needle valves are essential for controlling fluid flow with high precision in industrial and commercial applications. These valves feature a small, tapered stem that allows for fine adjustments, making them ideal for systems that require accurate flow regulation. Commonly used in industries such as chemical processing, oil and gas, water treatment, and instrumentation, needle valves help maintain efficiency and process stability.

Types of Needle Valves

Centro offers a variety of needle valves designed to meet different application requirements, including:

  • Standard needle valves for general-purpose flow control in low- to medium-pressure systems.
  • High-pressure needle valves built for demanding applications with extreme pressure conditions.
  • Instrumentation needle valves for precise flow adjustments in analytical and laboratory settings.


Choosing the Right Needle Valve

Selecting the appropriate needle valve depends on factors such as system pressure, temperature, fluid type, and required flow control precision. Consider whether the valve needs to handle gases or liquids, as well as the level of adjustability required for your application.


Browse our selection of needle valves online or contact our team for expert assistance in choosing the right solution for your system.

Valve Repair Kits & Parts

Valve repair kits and parts are essential components used to maintain and repair valves in fluid control systems. These kits typically include seals, gaskets, o-rings, springs, and other necessary parts needed to restore or replace worn or damaged elements of a valve. Valve repair kits and parts enable the repair and refurbishment of valves, extending their lifespan and ensuring proper functioning. By using these kits, operators can quickly and cost-effectively address valve issues without requiring complete valve replacement. These kits are available for different types and sizes of valves, allowing for specific repairs tailored to the valve's design and requirements. Valve repair kits and parts are essential for industries such as manufacturing, petrochemicals, water treatment, and HVAC, where reliable valve performance is crucial.

Angle Seat Valves

Angle seat valves, also known as angle valves or angle-seat piston valves, are versatile and reliable devices used in fluid control systems. These valves feature a unique design with a 90-degree angle between the inlet and outlet ports, allowing for efficient flow control and excellent sealing capabilities. The valve body typically houses a piston that can be pneumatic or electric in response to the actuator. This movement controls the flow of the fluid, allowing precise regulation and shut-off. Angle seat valves are widely used in applications requiring accurate control of liquids or gases, such as industrial processes, water treatment systems, and HVAC systems. They are known for their durability, high flow capacity, and contaminant resistance, making them a popular choice in various industries.

Globe Valves

Global valves are a critical category of industrial valves designed to regulate, start, and stop the flow of fluid in piping systems. Known for their spherical body shape and internal baffle, global valves offer excellent throttling capabilities and are widely used in applications requiring precise flow control and reliable shutoff.


Commonly found in MRO (Maintenance, Repair & Operations) environments, global valves are suitable for high-pressure and high-temperature systems across sectors like oil & gas, power generation, chemical processing, and water treatment. Their robust design ensures long-term performance and minimal leakage in demanding service conditions.


Check Valves

Check valves are mechanical devices designed to allow fluid—whether liquid or gas—to flow in only one direction, preventing backflow that can damage equipment or disrupt system performance. Commonly used in industrial, plumbing, and MRO (maintenance, repair, and operations) systems, they automatically open with forward flow and close when flow reverses. Available in various types like swing, ball, and inline designs, check valves are essential for ensuring system integrity, protecting pumps and compressors, and maintaining operational safety.

Types of Check Valves We Offer:


Centro partners with leading manufacturers to provide top-quality materials and engineering in every check valve we supply. Browse our extensive selection and find the perfect check valve for your needs. Order online today or contact our experts for assistance!

Control Valves

Control valves regulate the flow, pressure, and temperature of fluids in various industrial processes. These valves are essential for maintaining efficiency, safety, and precision in applications such as oil and gas, chemical processing, water treatment, food and beverage, and manufacturing. Centro offers a wide selection of control valves designed to meet the demands of these industries.

Types of Control Valves

Centro provides various control valves to suit different applications, including:

  • Needle valves for precise flow control in instrumentation and low-flow systems.
  • Flow control valves to regulate fluid flow and maintain system stability.
  • Pneumatic globe control valves for automated, high-efficiency operation.

Choosing the Right Control Valve

When selecting a control valve, it’s important to consider factors such as the type of fluid (liquid, gas, or steam), operating pressure and temperature, flow rate requirements, and system compatibility. Whether you need a manually operated valve or an automated solution, Centro offers high-performance options to meet your needs.

Why Choose Centro?

Our control valves are built for durability, precise flow regulation, and reliable performance. With a wide range of materials and configurations available, we help customers find the best solutions for their specific applications.


Browse our selection online or contact our team for expert guidance in choosing the right control valve for your system.

General Purpose Butterfly Valves

General-purpose butterfly valves are versatile components used in fluid control systems to regulate and control the flow of various liquids and gases. These valves feature a disc-shaped closure element, known as the butterfly disc, which rotates on a central axis to control the flow passage. General-purpose butterfly valves are popular due to their compact design, lightweight construction, and ease of operation. They offer quick and efficient shut-off capabilities and can handle significant flow rates with minimal pressure drop. These valves are widely used in industries such as water treatment, HVAC, chemical processing, and industrial applications where reliable flow control and cost-effective solutions are required. With manual or automated operation options, general-purpose butterfly valves provide a reliable and economical choice for a wide range of fluid control applications.

Valve Accessories

Valve accessories are additional components that enhance the functionality and performance of valves in fluid control systems. These accessories are designed to provide other features, improve safety, or simplify maintenance of the valves. Valve accessories enhance the reliability, efficiency, and safety of valve operations, making them essential for various industries such as oil and gas, chemical processing, water treatment, and power generation.

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1" control valve, Cv of 17.42, bronze body, USP set at 125 psig (8.6 bar), USP adjustable range 123-166 psig (8.5-11.5 bar).
Sale Price:

$1,744.78$2,356.35

Regular Price: $2,356.35, you save $611.57 (26%)
Typically ships within 3-5 weeks

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1" control valve, Cv of 17.42, bronze body, USP set at 125 psig (8.6 bar), USP adjustable range 71-155 psig (4.9-10.7 bar).
Sale Price:

$1,916.31$2,588.00

Regular Price: $2,588.00, you save $671.69 (26%)
Typically ships within 3-5 weeks

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1" diaphragm valve, integrated coil, coupling connection, 110 VAC DIN electrical connection.
Sale Price:

$106.48$143.80

Regular Price: $143.80, you save $37.32 (26%)
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1" diaphragm valve, integrated coil, coupling connection, 110 VAC, DIN electrical connection, Cv factor of 23.
Sale Price:

$132.36$178.75

Regular Price: $178.75, you save $46.39 (26%)
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Subject to factory lead times

1" diaphragm valve, integrated coil, NPT connection, 110 VAC, DIN electrical connection, Cv factor of 23.
Sale Price:

$110.00$148.55

Regular Price: $148.55, you save $38.55 (26%)
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1" diaphragm valve, integrated coil, NPT connection, 220 VAC DIN electrical connection.
Sale Price:

$85.97$116.10

Regular Price: $116.10, you save $30.13 (26%)
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Subject to factory lead times

1" diaphragm valve, integrated coil, NPT connection, 220 VAC, DIN electrical connection, Cv factor of 23.
Sale Price:

$107.92$145.75

Regular Price: $145.75, you save $37.83 (26%)
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Subject to factory lead times

1" diaphragm valve, integrated coil, NPT connection, 24 VDC DIN electrical connection.
Requires Quote
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1" diaphragm valve, remote coil, coupling connection, Cv factor of 23.
Sale Price:

$108.96$147.15

Regular Price: $147.15, you save $38.19 (26%)
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Subject to factory lead times

1" diaphragm valve, remote coil, NPT connection, Cv factor of 23.
Sale Price:

$81.82$110.50

Regular Price: $110.50, you save $28.68 (26%)
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Subject to factory lead times

1" diaphragm valve, remote coil, NPT connection.
Sale Price:

$62.35$84.20

Regular Price: $84.20, you save $21.85 (26%)
Typically ships within 3-5 weeks

Subject to factory lead times

1" needle valve, female x female.
Sale Price:

$145.27$156.95

Regular Price: $156.95, you save $11.68 (7%)
Typically ships within 3-5 weeks

Subject to factory lead times

1" control valve, Cv of 17.42, bronze body, USP set at 125 psig (8.6 bar), USP adjustable range 123-166 psig (8.5-11.5 bar).
Sale Price:

$1,744.78$2,356.35

Regular Price: $2,356.35, you save $611.57 (26%)
Typically ships within 3-5 weeks

Subject to factory lead times

1" control valve, Cv of 17.42, bronze body, USP set at 125 psig (8.6 bar), USP adjustable range 71-155 psig (4.9-10.7 bar).
Sale Price:

$1,916.31$2,588.00

Regular Price: $2,588.00, you save $671.69 (26%)
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, coupling connection, 110 VAC DIN electrical connection.
Sale Price:

$106.48$143.80

Regular Price: $143.80, you save $37.32 (26%)
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, coupling connection, 110 VAC, DIN electrical connection, Cv factor of 23.
Sale Price:

$132.36$178.75

Regular Price: $178.75, you save $46.39 (26%)
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, NPT connection, 110 VAC, DIN electrical connection, Cv factor of 23.
Sale Price:

$110.00$148.55

Regular Price: $148.55, you save $38.55 (26%)
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, NPT connection, 220 VAC DIN electrical connection.
Sale Price:

$85.97$116.10

Regular Price: $116.10, you save $30.13 (26%)
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, NPT connection, 220 VAC, DIN electrical connection, Cv factor of 23.
Sale Price:

$107.92$145.75

Regular Price: $145.75, you save $37.83 (26%)
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, NPT connection, 24 VDC DIN electrical connection.
Requires Quote
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, remote coil, coupling connection, Cv factor of 23.
Sale Price:

$108.96$147.15

Regular Price: $147.15, you save $38.19 (26%)
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, remote coil, NPT connection, Cv factor of 23.
Sale Price:

$81.82$110.50

Regular Price: $110.50, you save $28.68 (26%)
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, remote coil, NPT connection.
Sale Price:

$62.35$84.20

Regular Price: $84.20, you save $21.85 (26%)
Typically ships within 3-5 weeks

Subject to factory lead times

1" needle valve, female x female.
Sale Price:

$145.27$156.95

Regular Price: $156.95, you save $11.68 (7%)
Typically ships within 3-5 weeks

Subject to factory lead times