Categories from Apollo Valves (20)

We offer 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, our 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.

Related categories: Valves | Valve Accessories | Gauge Cock Valves | Gate Valves | Pneumatic Safety Valves

Relief valves and vacuum breakers are vital safety devices that protect systems and equipment from overpressure or vacuum conditions. Relief valves are designed to automatically relieve excessive pressure within a system, preventing potential damage or catastrophic failure. They are commonly used in boilers, pressure vessels, pipelines, and hydraulic systems. On the other hand, vacuum breakers are utilized to prevent the formation of a vacuum or negative pressure within a system, which can lead to implosion or damage. Vacuum breakers are commonly found in plumbing systems, water supply lines, and industrial processes. These valves ensure system integrity and safety by releasing pressure or preventing vacuum, safeguarding equipment, and preventing potential hazards.

Related categories: Valves | Pressure Reducing Valves | Diaphragm Valves | Sanitary Valves | Repair Valves

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.

Related categories: Valves | Drain Valves | Gate Valves | Globe Valves | Valve Accessories

We provide a broad range of high-performance butterfly valves engineered to meet the demands of various industrial applications. Available in multiple sizes, materials, and configurations, our valves are designed for efficient flow control, long-term durability, and ease of installation and maintenance.

Whether you're working within space-constrained systems, need reliable isolation in critical applications, or require robust solutions for corrosive or high-pressure environments, we have the right valve for your specifications.

Our Butterfly Valve Offerings Include:

• Wafer Butterfly Valves – Slim, lightweight design ideal for low-pressure applications and compact piping layouts.
• Lug Butterfly Valves – Designed for easy installation and line maintenance, suitable for dead-end service.
• Double-Offset Butterfly Valves – Precision sealing and reduced wear, perfect for high-temperature and moderate-to-high pressure systems.
• Triple-Offset Butterfly Valves – Metal-seated for maximum durability and zero leakage, ideal for critical and corrosive applications.
• Resilient Seated Butterfly Valves – Excellent corrosion resistance, making them ideal for water treatment, chemical processing, and general utility use.

Shop by type: General Purpose Butterfly Valves | High Performance Butterfly Valves | PTFE Lined Butterfly Valves

Related categories: Valves | Temperature Control Valves | Fuel, Gas, and Oil Valves | Flow Control Valves | Directional Control 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:

• Swing Check Valves – Ideal for irrigation and low-pressure systems
• Ball Check Valves – Reliable for wastewater and slurry applications
• Piston Check Valves – Designed for precise flow control in hydraulic systems

We partner 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!

Related categories: Valves | Needle Valves | Control Valves | Cryogenic Valves | Lined Valves

Pressure reducing valves lower incoming pressure to a steady, safe downstream level. They protect equipment, reduce leaks and wear, and keep steam, water, air and gas systems running at the right pressure even when demand changes.

Pressure Reducing Valve Types

• Direct-acting valves – simple, compact and economical for small flows
• Pilot-operated valves – precise control at higher flow rates
• Steam PRVs – for heating, process and humidification
• Water PRVs – protect building and process water systems
• Air and gas regulators – for plant air and fuel gas

Sizing a PRV

Size the valve for flow and pressure drop, not simply the pipe size, because an oversized PRV hunts and wears quickly. You'll need inlet and outlet pressure, maximum and minimum flow, and media temperature. Install a strainer ahead of the valve and a relief valve downstream for protection.

Centro can help you size and select pressure reducing valves for steam, water, air and gas.

Related categories: Valves | Sanitary Valves | Relief Valves and Vacuum Breakers | Plumbing Valves | Diaphragm Valves

Backflow prevention devices keep contaminated water from flowing back into potable water supplies. They're required by code wherever cross-connections exist, such as boiler feeds, irrigation, fire systems and process water.

Backflow Device Types

• Reduced pressure zone (RPZ) assemblies – high-hazard protection
• Double check valve assemblies – low-hazard protection
• Pressure vacuum breakers – irrigation
• Atmospheric vacuum breakers – simple point-of-use
• Repair kits and test kits – maintenance and annual testing

Choosing a Device

The hazard level and local code determine the device. Size for flow and pressure loss, and plan for annual testing access.

Centro supplies backflow prevention devices and repair kits.

Related categories: Process Equipment | Industrial Desiccant Dehumidifiers | Heat Exchanger Applications | Thermal Fluid Heater Systems | Pumps

Level control is essential for many industrial and commercial applications, ranging from simple water tanks to complex chemical processing systems. Industrial applications often require control to maintain safe and efficient operations. This can be accomplished through the use of float switches or differential pressure control. Float switches are devices used to measure the level of a liquid in a tank. They work by using a float that is attached to a switch. When the float rises or falls with the level of the liquid, the switch is activated. This can then be used to trigger an alarm or shut off a pump. Differential pressure control is another level control method that uses pressure sensors to measure the difference in pressure between two points. This can be used to determine the liquid level in a tank. Differential pressure control is often used in applications requiring precise level control. We carry a complete selection of level-control products to meet your needs. Our float switches are ideal for small-scale applications, while our radar and differential pressure control systems are designed for more demanding environments. We also offer load cells for use in weight-based level measurement. Whether you need a simple float switch or a sophisticated differential pressure system, we have your level control products.

Shop by type: Bulk Solids | Liquid Level

Related categories: Instrumentation, Measurement and Control | Temperature Measurement, Instrumentation and Control | Analytical Tools | PVF | Sensors

Globe valves regulate and throttle flow precisely. The disc moves perpendicular to the seat, giving fine control in steam, water, oil and process lines.

Globe Valve Types

• Bronze globe valves – utility and steam service
• Cast and forged steel – high pressure and temperature
• Stainless globe valves – corrosive service
• Angle and Y-pattern – reduced pressure drop
• Control globe valves – automated modulation

Choosing a Valve

Select by pressure class, temperature, size and trim. Globe valves have higher pressure drop than gate valves, so use them where control is needed.

Centro supplies globe valves for flow regulation.

Related categories: Valves | Mixing Valves | Drain Valves | Lined Valves | Valve Repair Kits & Parts

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.

Related categories: Butterfly Valves | High Performance Butterfly Valves | PTFE Lined Butterfly Valves

Gate valves are a type of valve used in industrial settings to control the flow of liquids, gases, and solid materials. They work by opening or closing depending on the pressure applied to them. This allows for increased control over the flow rate compared to other valves. Gate valves are designed with a gate-like mechanism that is opened or closed using handles on one valve's end. These valves allow a high flow rate; when closed, they offer excellent sealing capabilities. Gate valves can be used in various industries, including oil and gas production, water treatment plants, chemical processing facilities, etc. Their ability to quickly switch from open to closed makes them ideal for applications requiring rapid shut-off or start-up operations. We offer a wide selection of gate valves for industrial applications, ensuring the highest quality and reliability when controlling process flow.

Related categories: Valves | Valve Repair Kits & Parts | Valve Accessories | Drain Valves | Ball Valves

Actuators automate valves, dampers and machinery by turning electric, pneumatic or hydraulic energy into motion. Automated valves improve process control, allow remote operation and provide fail-safe protection.

Actuator Types

• Pneumatic actuators – rack and pinion and scotch yoke for quarter-turn valves
• Electric actuators – precise control without compressed air
• Linear actuators – globe valves and linear motion
• Polymer actuators – corrosive environments
• Thermal link actuators – fire-safe automatic closure
• Actuator accessories – solenoids, limit switches and positioners

Sizing an Actuator

Size actuators to the valve's torque or thrust requirement with a safety margin. Choose spring-return for fail-safe operation, and consider available power, air pressure, control signal and environment.

Centro supplies actuators and accessories and can help you choose the right actuator for your valve.

Shop by type: Polymer Actuators | Thermal Link Actuators | Linear Actuators | Electric Actuators | Pneumatic Actuators | Actuator Accessories

Related categories: Actuation and Engineered Products | Regulators | Volume Boosters | Loading Systems | Washdown Systems

Boiler accessories keep boilers safe, efficient and compliant. Controls, valves, gauges and trim are just as important as the boiler itself.

Accessories Available

• Low water cutoffs – protect against dry firing
• Safety relief valves – overpressure protection
• Pressure and temperature gauges – monitor operation
• Controls and thermostats – efficient operation
• Gauge glasses and blowdown valves – maintenance

Choosing Accessories

Match accessories to boiler type, pressure and code requirements. Test safety devices regularly.

Centro supplies boiler accessories and trim.

Related categories: Boilers | Gas Boilers | Electric Boilers

Mixing valves are an essential element of process flow control. In industrial settings, they mix two fluids together at a predetermined ratio. This allows for precise control over the output mixture, creating solutions that meet specific requirements for any application. Mixing valves offer flexible temperature control by combining both hot and cold supplies in different proportions. They can also be used with other media, such as gases or solids, to create otherwise impossible combinations. As a result, mixing valves can provide a wide range of benefits, including improved energy efficiency and operational accuracy in various industries. We are proud to distribute these high-quality products and provide technical support for our customers who rely on them as part of their process flow control systems.

Related categories: Valves | Lined Valves | Globe Valves | Control Valves | Drain Valves

Commercial buildings, schools, hospitals and light industrial spaces depend on filtration to keep air clean and equipment running. Commercial filtration products are designed to be simple to install and change while meeting indoor air quality and building code requirements.

Commercial Filtration Products

• Pleated panel filters – MERV-rated filters for HVAC air handlers and rooftop units
• Bag and pocket filters – high dust-holding capacity for larger air systems
• HEPA filters – for cleanrooms, healthcare and critical environments
• Carbon filters – odor and VOC control for kitchens, labs and occupied spaces
• Water filters – sediment and carbon cartridges for building water and ice machines

Choosing a Filter

Check the filter dimensions and the MERV rating your system can handle. A higher efficiency filter improves air quality but can restrict airflow on older equipment. Setting a regular change schedule, or monitoring pressure drop, keeps fans efficient and stops dust from bypassing the filter.

Centro supplies commercial filtration for facility managers and contractors, and our team can help you match the right filter size and efficiency to your building.

Related categories: Filtration | Industrial Filtration

Valve accessories add control, feedback and protection to valves. Actuators, positioners, limit switches, handles and locking devices make valves easier and safer to run.

Accessories Available

• Actuators – pneumatic and electric automation
• Positioners – modulating control
• Limit switches – position feedback
• Gear operators and handwheels – manual operation
• Locking devices and extensions – safety and access

Choosing Accessories

Match valve type, size and mounting standard (ISO 5211). Choose environmental ratings for the installation.

Centro supplies valve accessories and automation packages.

Related categories: Valves | Gate Valves | Ball Valves | Valve Repair Kits & Parts | Gauge Cock Valves

Regulators are devices that control the pressure of gases and liquids. Centro carries compressed air regulators, filter-regulator (FRL) combinations and precision air regulators in a wide range of port sizes and pressure ranges. Our compress air regulators are designed to maintain a constant output pressure, even as the input pressure changes. Our FRL compressed air regulators are ideal for applications where the inlet pressure is unstable or unknown. And our air regulators can be used to adjust the flow rate of gases. We have the perfect solution for your commercial or industrial application. Please browse our website today to find the suitable regulator for your needs.

Related categories: Actuation and Engineered Products | Loading Systems | Actuators | Positioners and Limit Switches | Volume Boosters

Solenoid valves provide fast, reliable on/off control of water, air, gas, oil, steam and chemicals using an electrical signal. They automate filling, dispensing, cooling, cleaning and safety shutoff in countless machines and systems.

Solenoid Valve Types

• 2-way valves – simple open/close flow control
• 3-way and 4-way valves – divert flow or operate actuators
• Direct-acting valves – work from zero pressure
• Pilot-operated valves – larger flows at line pressure
• Specialty valves – steam, fuel gas, cryogenic and proportional

Choosing a Solenoid Valve

Confirm the media, pressure range (including minimum pressure differential), temperature, port size and Cv. Choose body and seal materials compatible with the fluid, and select a coil voltage and enclosure rating for the location. Normally closed or normally open depends on the fail-safe state you need.

Centro carries solenoid valves for water, air, steam, gas and process applications.

Related categories: Valves | Sampling Valves | Plumbing Valves | Plug Valves | Sanitary Valves

Pressure control products measure, monitor and regulate pressure in liquids, gases and steam. Accurate pressure control protects equipment and keeps processes stable.

Pressure Control Products

• Gauges – pressure, differential and specialty gauges
• Pressure transmitters and transducers – electronic monitoring
• Pressure switches – alarm and control set points
• Pressure regulators and sequence valves – control downstream pressure
• Accessories – snubbers, syphons, manifolds and gauge valves

Building a Measurement Point

Choose instrument range, accuracy and wetted materials, then add the right accessories, such as isolation valves and snubbers, for safe, accurate readings.

Centro supplies pressure control instruments and accessories from leading brands.

Shop by type: Pressure Transducers | Pressure Control Accessories | Gauges | Pressure Switch | Pressure Transmitters | Pressure Regulators | Sequence Valves

Related categories: Instrumentation, Measurement and Control | Controllers | Flow Control | Recorders | Seals and Accessories

Boilers provide hot water and steam for heating, sanitation and industrial processes. A properly sized, efficient boiler lowers energy costs and supplies reliable heat across commercial buildings and production facilities.

Boiler Options

• Electric boilers – emission-free, compact and quiet
• Gas boilers – high output and fast recovery
• Hot water and steam boilers – space heating or process loads
• Condensing boilers – maximum efficiency for hydronic systems
• Boiler accessories – controls, valves, gauges and trim

Choosing a Boiler

Size the boiler to your heating load or steam demand, and consider fuel availability, efficiency, footprint and emissions rules. Water treatment and regular maintenance protect efficiency and extend boiler life.

Centro can help you specify boilers and the accessories needed for a complete installation.

Shop by type: Electric Boilers | Gas Boilers | Boiler Accessories

Related categories: Water Heaters | Solar Water Heaters