Categories from AQ Matic and Control Valves (4)

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.

Valve Repair Kits & Parts
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.

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.

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AQ Matic/Aquamatic and Control Valves 1070305 - K531,1.00,PLS,NO/LS

$331.91$402.43

You save 18%
Should ship between 17 Nov and 01 Dec

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070308 - K534,1.50,PLS,NO

$461.08$559.04

You save 18%
Should ship between 17 Nov and 01 Dec

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070309 - K534,1.50,PLS,NO/LS

$505.24$612.58

You save 18%
Should ship between 17 Nov and 01 Dec

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070312 - K535,2.00,PLS,NO

$826.59$1,002.21

You save 18%
Should ship between 17 Nov and 01 Dec

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070313 - K535,2.00,PLS,NO/LS

$883.83$1,071.61

You save 18%
Should ship between 17 Nov and 01 Dec

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070316 - K537,3.00,PLS,NO

$1,388.88$1,683.97

You save 18%
Should ship between 17 Nov and 01 Dec

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070317 - K537,3.00,PLS,NO/LS

$1,473.93$1,787.09

You save 18%
Should ship between 17 Nov and 01 Dec

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 531-RAE Diaphragm and Seal Kit for K531 Control Valve

$41.43$50.23

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 534-RAE Diaphragm and Seal Kit for K534 Control Valve

$62.79$76.12

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 535-RAE Diaphragm and Seal Kit for K535 Control Valve

$86.80$105.24

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070321 - KIT,537,DS,EP

$121.33$147.10

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070326 - KIT,531,DS,BUTYL

$66.32$80.40

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070327 - KIT,534,DS,BUTYL

$95.78$116.12

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070337 - KIT,537,DS,VITON

$200.36$242.93

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070342 - KIT,531,INT,NO

$105.60$128.03

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070343 - KIT,534,INT,NO

$168.15$203.87

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070344 - KIT,535,INT,NO

$356.63$432.40

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070345 - KIT,537,INT,NO

$465.47$564.37

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070350 - 0.50 NPT PVC EJECTOR RED

$113.50$137.61

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070351 - 0.50 NPT PVC EJECTOR WHITE

$113.50$137.61

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070352 - 0.50 NPT PVC EJECTOR BLUE

$113.50$137.61

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070356 - EJECTOR ASSY,3/4NPT,PVC,RED

$135.36$164.12

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070357 - EJECTOR ASSY,3/4NPT,PVC,WHI

$135.36$164.12

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070358 - EJECTOR ASSY,3/4NPT,PVC,BLU

$135.36$164.12

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070305 - K531,1.00,PLS,NO/LS

$331.91$402.43

You save 18%
Should ship between 17 Nov and 01 Dec

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070308 - K534,1.50,PLS,NO

$461.08$559.04

You save 18%
Should ship between 17 Nov and 01 Dec

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070309 - K534,1.50,PLS,NO/LS

$505.24$612.58

You save 18%
Should ship between 17 Nov and 01 Dec

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070312 - K535,2.00,PLS,NO

$826.59$1,002.21

You save 18%
Should ship between 17 Nov and 01 Dec

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070313 - K535,2.00,PLS,NO/LS

$883.83$1,071.61

You save 18%
Should ship between 17 Nov and 01 Dec

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070316 - K537,3.00,PLS,NO

$1,388.88$1,683.97

You save 18%
Should ship between 17 Nov and 01 Dec

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070317 - K537,3.00,PLS,NO/LS

$1,473.93$1,787.09

You save 18%
Should ship between 17 Nov and 01 Dec

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 531-RAE Diaphragm and Seal Kit for K531 Control Valve

$41.43$50.23

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 534-RAE Diaphragm and Seal Kit for K534 Control Valve

$62.79$76.12

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 535-RAE Diaphragm and Seal Kit for K535 Control Valve

$86.80$105.24

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070321 - KIT,537,DS,EP

$121.33$147.10

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070326 - KIT,531,DS,BUTYL

$66.32$80.40

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070327 - KIT,534,DS,BUTYL

$95.78$116.12

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070337 - KIT,537,DS,VITON

$200.36$242.93

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070342 - KIT,531,INT,NO

$105.60$128.03

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070343 - KIT,534,INT,NO

$168.15$203.87

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070344 - KIT,535,INT,NO

$356.63$432.40

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070345 - KIT,537,INT,NO

$465.47$564.37

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070350 - 0.50 NPT PVC EJECTOR RED

$113.50$137.61

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070351 - 0.50 NPT PVC EJECTOR WHITE

$113.50$137.61

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070352 - 0.50 NPT PVC EJECTOR BLUE

$113.50$137.61

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070356 - EJECTOR ASSY,3/4NPT,PVC,RED

$135.36$164.12

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070357 - EJECTOR ASSY,3/4NPT,PVC,WHI

$135.36$164.12

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times

AQ Matic/Aquamatic and Control Valves 1070358 - EJECTOR ASSY,3/4NPT,PVC,BLU

$135.36$164.12

You save 18%
Should ship between 06 Nov and 10 Nov

Subject to factory lead times