Categories from Spartan Scientific (6)

Solenoid Valves
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.

Diaphragm Valves
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.

Pilot Valves
Pilot Valves

Pilot valves are critical for operating larger valves or control actuators in fluid control systems. These valves act as control mechanisms, receiving signals from external devices such as sensors, controllers, or other valves and initiating the opening or closing of the main valve or actuator. Pilot valves are commonly used in applications where high-pressure fluids or significant flow rates are involved, such as hydraulic systems, pneumatic systems, and industrial machinery. They provide reliable and precise control, ensuring efficient operation and safety. With various configurations and actuation methods available, including solenoid-operated, manual, or pilot-operated, pilot valves offer versatility and flexibility to meet specific system requirements.

Drain Valves
Drain Valves

Drain valves are essential components in fluid management systems, designed to control the flow and drainage of liquids and gases. These valves play a crucial role in various industries, ensuring the safe and efficient removal of unwanted fluids from pipelines, tanks, and other equipment. Whether it's for industrial, commercial, or residential applications, reliable drain valves help prevent leaks, maintain optimal system performance, and safeguard against potential hazards. With a wide range of materials, sizes, and configurations available, finding the perfect drain valve to suit specific needs has never been easier. Choose high-quality drain valves to enhance fluid control and maintain the integrity of your operations.

Valve Accessories
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.

Proportional Valves
Proportional Valves

Proportional valves are advanced control valves that provide precise and proportional control over fluid flow rates or pressures. These valves are designed to accurately regulate the flow or pressure of liquids or gases in various industrial applications. Proportional valves offer the ability to adjust the valve opening or position in proportion to an input signal, typically an electrical or analog signal. This allows for fine-tuned control and modulation of the flow or pressure, enabling precise adjustments based on system requirements. Proportional valves are commonly used in automation, robotics, process control, and hydraulic systems, where precise and dynamic control is essential for optimal performance.

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Direct Acting Valve, 2-Way, 2-Position, Normally Closed, Glass-Filled Nylon Valve Body

$65.19$68.45

You save 5%
Available for Purchase

Subject to factory lead times

The Spartan Scientific Series APVS06 is an inert gas/spring operated, Single Acting Normally Closed, or Double Acting media compatible diaphragm valve, designed for control of high purity, aggressive and corrosive liquid chemical media. It has a miniature overall footprint, and low dead volume. The Series APVS06 features media compatible composite body, and FKM, NBR, and EPDM elastomers to control the 1/2” orifice which afford Cv ratings of 2.45 that far exceed competitive valves of this type and size. Media pressure ratings range from Vacuum to 150 psi and pilot pressure is 60 psi minimum. A Normally Open version can be made using a Normally Open pilot valve. In the case of pilot gas failure, the valve will fail closed. In the case where electric power is lost but pilot gas remains, the valve will remain open. Each valve is tested to bubble tight standard ANSI FCI 70-2 Class VI. The Series APVS06 can be controlled by our proven Spartan Scientific 3-way solenoid pilot valve which enhances operation with manual override and indicator lighted connector options, and is used where sampling, draining, or transferring process fluid are performed.

$159.22$167.18

You save 5%
Available for Purchase

Subject to factory lead times

The Spartan Scientific Series CRDV/S Condensate Removal Drain Valve keeps your air compressor tank and air lines free of moisture by coupling a state of the art automatic timer with a solenoid valve, reducing rust and clogged air components while increasing compressor cycling and machine life. It features a self-cleaning cycle every 24 hours, status indicator lights, environment resistant design for long cycle life, along with an on board microprocessor from discrete components. As water effluent enters the CRDV/S, the self-learning mode opens the valve more often or less often based on the sensing of the water and demand thereof.

$201.04$211.10

You save 5%
Available for Purchase

Subject to factory lead times

SPARTAN;VALVE

$62.88$66.75

You save 6%
In Stock (49)Ships within 1 business day
SPARTAN;VALVE

$62.88$66.75

You save 6%
Available for Purchase

Subject to factory lead times

Direct Acting Valve, 2-Way, 2-Position, Normally Closed, Glass-Filled Nylon Valve Body

$65.19$68.45

You save 5%
Available for Purchase

Subject to factory lead times

The Spartan Scientific Series APVS06 is an inert gas/spring operated, Single Acting Normally Closed, or Double Acting media compatible diaphragm valve, designed for control of high purity, aggressive and corrosive liquid chemical media. It has a miniature overall footprint, and low dead volume. The Series APVS06 features media compatible composite body, and FKM, NBR, and EPDM elastomers to control the 1/2” orifice which afford Cv ratings of 2.45 that far exceed competitive valves of this type and size. Media pressure ratings range from Vacuum to 150 psi and pilot pressure is 60 psi minimum. A Normally Open version can be made using a Normally Open pilot valve. In the case of pilot gas failure, the valve will fail closed. In the case where electric power is lost but pilot gas remains, the valve will remain open. Each valve is tested to bubble tight standard ANSI FCI 70-2 Class VI. The Series APVS06 can be controlled by our proven Spartan Scientific 3-way solenoid pilot valve which enhances operation with manual override and indicator lighted connector options, and is used where sampling, draining, or transferring process fluid are performed.

$159.22$167.18

You save 5%
Available for Purchase

Subject to factory lead times

The Spartan Scientific Series CRDV/S Condensate Removal Drain Valve keeps your air compressor tank and air lines free of moisture by coupling a state of the art automatic timer with a solenoid valve, reducing rust and clogged air components while increasing compressor cycling and machine life. It features a self-cleaning cycle every 24 hours, status indicator lights, environment resistant design for long cycle life, along with an on board microprocessor from discrete components. As water effluent enters the CRDV/S, the self-learning mode opens the valve more often or less often based on the sensing of the water and demand thereof.

$201.04$211.10

You save 5%
Available for Purchase

Subject to factory lead times

SPARTAN;VALVE

$62.88$66.75

You save 6%
In Stock (49)Ships within 1 business day
SPARTAN;VALVE

$62.88$66.75

You save 6%
Available for Purchase

Subject to factory lead times