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Best Hydraulic Diaphragm Valves - Buying Guide

Last Updated: 11/20/2018

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Bestselling Hydraulic Diaphragm Valves on Amazon

  1. ASCO 8210G094HW -120/60,110/50 Brass Body Hot Water Pilot Operated Diaphragm Valve, 100 psi Maximum ...
  2. Spraying Systems 12328-1/2-NYB Nylon ChemSaver Diaphragm Check Valve
  3. Studor 20396 Trap-Vent, Integrated Trap and Air Admittance Valve, 1-1/2" Outlet, White
  4. Interstate Pneumatics WP1185RK Diaphragm and Valve Kit for Air Regulator W1185
  5. Replacement Diaphragm for ALL Irritrol/Richdel 2400 & 2600 Valves
  6. Honeywell, Inc. V4943A1011 1 inch Diaphragm Gas Valve, 120 Vac
  7. ASCO 8222G074 -120/60,110/50 Brass Body Hot Water and Steam Pilot Operated Diaphragm and Piston Valv...
  8. Parker NV55IS88MM Stainless Steel 316L High Pressure Diaphragm Indicator Knob Valve, 1/2" NPT Male
  9. Honeywell, Inc. V4943B1019 1 inch Diaphragm Gas Valve, 120 Vac
  10. Pondmaster Replacement Diaphragm Kit for AP-100

  #1

ASCO 8210G094HW -120/60,110/50 Brass Body Hot Water Pilot Operated Diaphragm Valve, 100 psi Maximum Operating Pressure, 1/2" Pipe Size, 2-Way Normally Closed, EPDM Sealing, 5/8" Orifice, 4 Cv Flow, 12

Model: 20230   |    Mpn: 8210G094HW -120/60,110/50   |    PartNumber: 8210G094HW -120/60,110/50   |   Asin: B016Y90SGQ

Hot Water and Steam valves are built with rugged materials to stand up to the harsh media and the environmental conditions of water/steam applications.

Features

  • Two-way (2/2) normally closed (opens when energized) operations
  • 1/2 Pipe Size
  • Brass body material
  • See more on Amazon...

Brand: Asco   |   Manufacturer: ASCO Valve Inc.

Package Dimensions: 2.9 x 4.2 x 5.2 inches (7.4 x 10.7 x 13.2 cm)

Amazon Price: $163.99 | as of 11/20/2018(6:51am pst)
Availibility: Temporarily out of stock. Order now and we'll deliver when available. We'll e-mail you with an estimated delivery date as soon as we have more information. Your credit card will not be charged until we ship the item.
List Price: $163.99

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  #2

Studor 20396 Trap-Vent, Integrated Trap and Air Admittance Valve, 1-1/2" Outlet, White

Model: 20396   |    Mpn: 20396   |    Ean: 0764651203967   |    PartNumber: 20396   |   Asin: B00UYRAEY6

1-1/2" Trap-Vent Assembly (Integrated Trap & Air Admittance Valve).

Features

  • Easy installation in minutes and Replaces conventional lavatory P-trap
  • Trap-Vent is for use in a bathroom lavatory installation venting up to 6 DFU
  • Maintains required 2 trap seal while one-way valve allows air into the drainage system
  • Provides a modern and clean appearance and greater freedom of design
  • Ideal for remodels, restorations and floating sinks
  • See more on Amazon...

Brand: Studor   |   Manufacturer: Studor, Inc.

Package Dimensions: 2.3 x 6 x 11.6 inches (5.8 x 15.2 x 29.5 cm)

Amazon Price: $39.16 | as of 11/20/2018(6:51am pst)
Availibility: Usually ships in 24 hours
List Price: $39.99 | Used Price: $21.27

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  #3

Interstate Pneumatics WP1185RK Diaphragm and Valve Kit for Air Regulator W1185

Model: WP1185RK   |    Mpn: WP1185RK   |    Ean: 0099461695764   |    PartNumber: WP1185RK   |   Asin: B003DKFX10

Interstate Pneumatics Diaphragm and Valve Kit for 3/4 inch Air Regulator W1185.

Features

Brand: Interstate Pneumatics   |   Manufacturer: Interstate Pneumatics

Amazon Price: $50.15 | as of 11/20/2018(6:51am pst)
Availibility: Usually ships in 1-2 business days
List Price: $50.15

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  #4

Honeywell, Inc. V4943A1011 1 inch Diaphragm Gas Valve, 120 Vac

 Ean: 0085267163767   |    PartNumber: V4943A1011   |   Asin: B008HOTUSO

V4943A1011, Honeywell, Inc., 1 inch Diaphragm Gas Valve, 120 Vac

Features

  • Brand: Honeywell
  • Product Number: V4943A1011
  • 120V 1 AUTOMATIC DIAPHRAGM NATURAL & LP GAS VAL
  • Category: HVAC
  • Free Shipping on this item!
  • See more on Amazon...

Brand: Honeywell   |   Manufacturer: Honeywell, Inc.

Amazon Price: $207.45 | as of 11/20/2018(6:51am pst)
Availibility: Usually ships in 1-2 business days
List Price: $220.97

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  #5

ASCO 8222G074 -120/60,110/50 Brass Body Hot Water and Steam Pilot Operated Diaphragm and Piston Valve, 125 psi Maximum Steam Operating Pressure, 3/8" Pipe Size, 2-Way Normally Closed, PTFE Sealing, 3/

Model: 21200   |    Mpn: 8222G074 -120/60,110/50   |    PartNumber: 8222G074 -120/60,110/50   |   Asin: B016Y90M94

Hot Water and Steam valves are built with rugged materials to stand up to the harsh media and the environmental conditions of water/steam applications.

Features

  • Two-way (2/2) normally closed (opens when energized) operations
  • 3/8 Pipe Size
  • Brass body material
  • See more on Amazon...

Brand: Asco   |   Manufacturer: ASCO Valve Inc.

Package Dimensions: 3 x 4.2 x 5.1 inches (7.6 x 10.7 x 13.0 cm)

Amazon Price: $241.47 | as of 11/20/2018(6:51am pst)
Availibility: Usually ships in 1 to 3 months
List Price: $241.47

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  #6

Parker NV55IS88MM Stainless Steel 316L High Pressure Diaphragm Indicator Knob Valve, 1/2" NPT Male

 PartNumber: 54021974   |   Asin: B008BKQPUK

The NV55 is an economical, general purpose, high flow diaphragm valve ideally suited for use when flowing large volumes of corrosive and non- corrosive fluids. This compact, 316L stainless steel valve ensures positive and consistent shut off with manual actuation. The NV55 offers an Elgiloy diaphragm and a metal-to-metal seal to atmosphere for leak integrity. 2-3/4" End to end dimension. Materials of construction: wetted body: stainless steel 316L, Diaphragm: elgiloy. Non-wetted: Nut: 17-4 PH, Cap: 17-4 PH. Actuation devices: aluminum black indicator knob. Operating conditions: manual operating pressures: vacuum to 250 psig. Actuator pressure: 70 - 125 psig. Temperature: -15 degree F to 150 degree F. Bake out in the open position: 250 degree F.

Features

  • Internally threadless and springless, high cycle life
  • Compact size, positive, consistent shut off
  • Metal-to-metal seal to atmosphere, Cleaned for O2 service
  • Ideal for high flow applications
  • Fully functional from vacuum to 250 psig for manual valves
  • See more on Amazon...

Brand: Parker   |   Manufacturer: Parker

Package Dimensions: 2.3 x 4.3 x 4.7 inches (5.8 x 10.9 x 11.9 cm)

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  #7

Honeywell, Inc. V4943B1019 1 inch Diaphragm Gas Valve, 120 Vac

 Ean: 0085267163866   |    PartNumber: V4943B1019   |   Asin: B008HOTTYY

V4943B1019, Honeywell, Inc., 1 inch Diaphragm Gas Valve, 120 Vac

Features

  • Brand: Honeywell
  • Product Number: V4943B1019
  • 120V 1 COMBINATION DIAPHRAGM NATURAL GAS VALVE W/
  • Category: HVAC
  • Free Shipping on this item!
  • See more on Amazon...

Brand: Honeywell   |   Manufacturer: Honeywell, Inc.

Amazon Price: $245.46 | as of 11/20/2018(6:51am pst)
Availibility: Usually ships in 1-2 business days
List Price: $258.98

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  #8

ASCO 8210G002HW -120/60,110/50 Brass Body Hot Water Pilot Operated Diaphragm Valve, 125 psi Maximum Operating Pressure, 1/2" Pipe Size, 2-Way Normally Closed, EPDM Sealing, 5/8" Orifice, 4 Cv Flow, 12

Model: 20045   |    Mpn: 8210G002HW -120/60,110/50   |    PartNumber: 8210G002HW -120/60,110/50   |   Asin: B016Y90SKM

Hot Water and Steam valves are built with rugged materials to stand up to the harsh media and the environmental conditions of water/steam applications.

Features

  • Two-way (2/2) normally closed (opens when energized) operations
  • 1/2 Pipe Size
  • Brass body material
  • See more on Amazon...

Brand: Asco   |   Manufacturer: ASCO Valve Inc.

Item Dimensions: 4.1 x 3.5 x 3.7 inches (10.4 x 8.9 x 9.4 cm)   |   Package Dimensions: 3 x 4.2 x 4.9 inches (7.6 x 10.7 x 12.4 cm)

Amazon Price: $153.00 | as of 11/20/2018(6:51am pst)
Availibility: Usually ships in 24 hours
List Price: $155.16

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  #9

NEW GOYEN RCA25T200 125PSI THREADED 1IN NPT DIAPHRAGM VALVE D283375

 PartNumber: D283375-RCA25T200   |   Asin: B00YBOWRWU

NEW GOYEN RCA25T200 125PSI THREADED 1IN NPT DIAPHRAGM VALVE D283375

Features

Brand: Goyen   |   Manufacturer: GOYEN

Item Dimensions: 5.38 x 5.38 x 6.25 inches (13.7 x 13.7 x 15.9 cm)   |   Package Dimensions: 5.38 x 5.38 x 6.25 inches (13.7 x 13.7 x 15.9 cm)

Amazon Price: $69.00 | as of 11/20/2018(6:51am pst)
Availibility:
List Price: $36.18

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  #10

NEW GOYEN RCA25T200 125PSI 1 IN NPT THREADED DIAPHRAGM VALVE D500122

 PartNumber: D500122-RCA25T200   |   Asin: B0100DQPFA

NEW GOYEN RCA25T200 125PSI 1 IN NPT THREADED DIAPHRAGM VALVE D500122

Features

  • Size: 1 IN
  • Other: NPT
  • Body Material: Aluminum
  • Mounting Type: Threaded
  • SKU: D500122 (NBM)
  • See more on Amazon...

Brand: Goyen   |   Manufacturer: GOYEN

Item Dimensions: 5.25 x 5.25 x 6.25 inches (13.3 x 13.3 x 15.9 cm)   |   Package Dimensions: 5.25 x 5.25 x 6.25 inches (13.3 x 13.3 x 15.9 cm)

Amazon Price: $59.10 | as of 11/20/2018(6:51am pst)
Availibility: Usually ships in 1-2 business days
List Price: $49.65

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  #11

Honeywell, Inc. V88A1626 1-1/4 inch Diaphragm Gas Valve, 24 Vac

 Ean: 0085267110587   |    PartNumber: V88A1626   |   Asin: B008HOTFCK

V88A1626, Honeywell, Inc., 1-1/4 inch Diaphragm Gas Valve, 24 Vac

Features

  • Brand: Honeywell
  • Product Number: V88A1626
  • 24V DIAPHRAGM GAS VALVE (1-1/4 1/2 PSI MAX. SOLENOID
  • Category: HVAC
  • Free Shipping on this item!
  • See more on Amazon...

Brand: Honeywell   |   Manufacturer: Honeywell, Inc.

Amazon Price: $206.48 | as of 11/20/2018(6:51am pst)
Availibility: Usually ships in 1-2 business days
List Price: $207.73

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  #12

ASCO 8220G407 -120/60,110/50 Brass Body Hot Water and Steam Pilot Operated Diaphragm and Piston Valve, 50 psi Maximum Steam Operating Pressure, 3/4" Pipe Size, 2-Way Normally Closed, EPDM/PTFE Sealing

Model: 21923   |    Mpn: 8220G407 -120/60,110/50   |    PartNumber: 8220G407 -120/60,110/50   |   Asin: B016Y90XN4

Hot Water and Steam valves are built with rugged materials to stand up to the harsh media and the environmental conditions of water/steam applications.

Features

  • Two-way (2/2) normally closed (opens when energized) operations
  • 3/4 Pipe Size
  • Brass body material
  • See more on Amazon...

Brand: Asco   |   Manufacturer: ASCO Valve Inc.

Item Dimensions: 5.2 x 3.1 x 4.2 inches (13.2 x 7.9 x 10.7 cm)   |   Package Dimensions: 3.1 x 4.1 x 5.1 inches (7.9 x 10.4 x 13.0 cm)

Amazon Price: $183.00 | as of 11/20/2018(6:51am pst)
Availibility: Usually ships in 24 hours
List Price: $196.64

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  #13

ASCO 8220G410 -120/60,110/50 Brass Body Hot Water and Steam Pilot Operated Diaphragm and Piston Valve, 50 psi Maximum Steam Operating Pressure, 1" Pipe Size, 2-Way Normally Closed, EPDM/PTFE Sealing,

Model: 21925   |    Mpn: 8220G410 -120/60,110/50   |    PartNumber: 8220G410 -120/60,110/50   |   Asin: B016Y910JK

Hot Water and Steam valves are built with rugged materials to stand up to the harsh media and the environmental conditions of water/steam applications.

Features

  • Two-way (2/2) normally closed (opens when energized) operations
  • 1 Pipe Size
  • Brass body material
  • See more on Amazon...

Brand: Asco   |   Manufacturer: ASCO Valve Inc.

Package Dimensions: 6.1 x 7.6 x 9.5 inches (15.5 x 19.3 x 24.1 cm)

Amazon Price: $315.06 | as of 11/20/2018(6:51am pst)
Availibility: Usually ships in 24 hours
List Price: $416.74

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  #14

ASCO 8220G409 -120/60,110/50 Brass Body Hot Water and Steam Pilot Operated Diaphragm and Piston Valve, 125 psi Maximum Steam Operating Pressure, 3/4" Pipe Size, 2-Way Normally Closed, EPDM/PTFE Sealin

Model: 21930   |    Mpn: 8220G409 -120/60,110/50   |    PartNumber: 8220G409 -120/60,110/50   |   Asin: B016Y90VJU

Hot Water and Steam valves are built with rugged materials to stand up to the harsh media and the environmental conditions of water/steam applications.

Features

  • Two-way (2/2) normally closed (opens when energized) operations
  • 3/4 Pipe Size
  • Brass body material
  • See more on Amazon...

Brand: Asco   |   Manufacturer: ASCO Valve Inc.

Package Dimensions: 2.9 x 4.1 x 5.2 inches (7.4 x 10.4 x 13.2 cm)

Amazon Price: $299.51 | as of 11/20/2018(6:51am pst)
Availibility: Usually ships in 24 hours
List Price: $332.79

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  #15

ASCO 8222G095 -120/60,110/50 Brass Body Hot Water and Steam Pilot Operated Diaphragm and Piston Valve, 50 psi Maximum Steam Operating Pressure, 3/4" Pipe Size, 2-Way Normally Closed, PTFE Sealing, 3/4

Model: 21405   |    Mpn: 8222G095 -120/60,110/50   |    PartNumber: 8222G095 -120/60,110/50   |   Asin: B016Y910NG

Hot Water and Steam valves are built with rugged materials to stand up to the harsh media and the environmental conditions of water/steam applications.

Features

  • Two-way (2/2) normally closed (opens when energized) operations
  • 3/4 Pipe Size
  • Brass body material
  • See more on Amazon...

Brand: Asco   |   Manufacturer: ASCO Valve Inc.

Package Dimensions: 3.1 x 4.1 x 5 inches (7.9 x 10.4 x 12.7 cm)

Amazon Price: $264.59 | as of 11/20/2018(6:51am pst)
Availibility: Usually ships in 1 to 3 months
List Price: $293.99

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Looking For Something Else? Search

Most Popular
New Releases

  1. ASCO 8210G094HW -120/60,110/50 Brass Body Hot Water Pilot Operated Diaphragm Valve, 100 psi Maximum ...
  2. Studor 20396 Trap-Vent, Integrated Trap and Air Admittance Valve, 1-1/2" Outlet, White
  3. Interstate Pneumatics WP1185RK Diaphragm and Valve Kit for Air Regulator W1185
  4. Honeywell, Inc. V4943A1011 1 inch Diaphragm Gas Valve, 120 Vac
  5. ASCO 8222G074 -120/60,110/50 Brass Body Hot Water and Steam Pilot Operated Diaphragm and Piston Valv...
  6. Parker NV55IS88MM Stainless Steel 316L High Pressure Diaphragm Indicator Knob Valve, 1/2" NPT Male
  7. Honeywell, Inc. V4943B1019 1 inch Diaphragm Gas Valve, 120 Vac

Most Wished For

  1. ASCO 8210G094HW -120/60,110/50 Brass Body Hot Water Pilot Operated Diaphragm Valve, 100 psi Maximum ...
  2. Studor 20396 Trap-Vent, Integrated Trap and Air Admittance Valve, 1-1/2" Outlet, White
  3. Interstate Pneumatics WP1185RK Diaphragm and Valve Kit for Air Regulator W1185
  4. Honeywell, Inc. V4943A1011 1 inch Diaphragm Gas Valve, 120 Vac
  5. ASCO 8222G074 -120/60,110/50 Brass Body Hot Water and Steam Pilot Operated Diaphragm and Piston Valv...
  6. Parker NV55IS88MM Stainless Steel 316L High Pressure Diaphragm Indicator Knob Valve, 1/2" NPT Male
  7. Honeywell, Inc. V4943B1019 1 inch Diaphragm Gas Valve, 120 Vac

Most Gifted

  1. ASCO 8210G094HW -120/60,110/50 Brass Body Hot Water Pilot Operated Diaphragm Valve, 100 psi Maximum ...
  2. Studor 20396 Trap-Vent, Integrated Trap and Air Admittance Valve, 1-1/2" Outlet, White
  3. Interstate Pneumatics WP1185RK Diaphragm and Valve Kit for Air Regulator W1185
  4. Honeywell, Inc. V4943A1011 1 inch Diaphragm Gas Valve, 120 Vac
  5. ASCO 8222G074 -120/60,110/50 Brass Body Hot Water and Steam Pilot Operated Diaphragm and Piston Valv...
  6. Parker NV55IS88MM Stainless Steel 316L High Pressure Diaphragm Indicator Knob Valve, 1/2" NPT Male
  7. Honeywell, Inc. V4943B1019 1 inch Diaphragm Gas Valve, 120 Vac

Top Selling

  1. ASCO 8210G094HW -120/60,110/50 Brass Body Hot Water Pilot Operated Diaphragm Valve, 100 psi Maximum ...
  2. Studor 20396 Trap-Vent, Integrated Trap and Air Admittance Valve, 1-1/2" Outlet, White
  3. Interstate Pneumatics WP1185RK Diaphragm and Valve Kit for Air Regulator W1185
  4. Honeywell, Inc. V4943A1011 1 inch Diaphragm Gas Valve, 120 Vac
  5. ASCO 8222G074 -120/60,110/50 Brass Body Hot Water and Steam Pilot Operated Diaphragm and Piston Valv...
  6. Parker NV55IS88MM Stainless Steel 316L High Pressure Diaphragm Indicator Knob Valve, 1/2" NPT Male
  7. Honeywell, Inc. V4943B1019 1 inch Diaphragm Gas Valve, 120 Vac



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