Check Valves

Check valves prevent reverse flow of fluids and gases within a pipeline system. They are designed to allow fluid to flow one way through the pipeline. Due to the simple design, check valves generally operate without automation or human interaction and instead rely on the flow velocity of the fluid to open and close.

How do they work?

Check valves are flow sensitive and rely on the line fluid to open and close. The internal disc allows flow to pass forward, which opens the valve. The disc begins closing the valve as forward flow decreases or is reversed, depends on the design. Construction is normally simple with only a few components such as the body, seat, disc and cover.

Check Valve types

There are several types of check valves for just about any application. Some of the more popular types include:
● Ball
● Dual plate
● Double door
● Spring assisted inline
● Nozzle
● Piston or lift
● swing checks

As with other types of valves, speciality check valves can be found for special applications.


Check valves are found in just about any type of facility from industrial plants and homes.

...
Read more Read less

Filters

Viewing 1 - 20 of 82 products
Results per page
Description Price Type Connection Body Material Maximum Working Pressure Thread Size Thread Standard
RS Stock No. 486-170
BrandRS PRO
SGD12.19
Each
units
Single 3/8 in BSPP Brass 12 bar 3/8in BSPP
RS Stock No. 499-2622
BrandRS PRO
SGD69.61
Each
units
Single 1/2 in BSP Stainless Steel 14 bar 1/2in BSP
RS Stock No. 486-148
BrandRS PRO
SGD12.24
Each
units
Single 1/2 in BSPP Brass 12 bar 1/2in BSPP
RS Stock No. 486-237
BrandRS PRO
SGD47.02
Each
units
Single 1-1/2 in BSPP Brass 12 bar 1-1/2in BSPP
RS Stock No. 720-9282
BrandRS PRO
SGD186.45
Each
units
Single 1 in BSP Stainless Steel 25 bar 1in BSP
RS Stock No. 510-3766
BrandRS PRO
SGD61.18
Each
units
Single 1 in BSPT Bronze 20 bar 1in BSPT
RS Stock No. 340-3301
BrandRS PRO
SGD14.53
Each
units
Single 3/4 in BSP Brass 16 bar 3/4in BSP
RS Stock No. 720-9336
BrandRS PRO
SGD133.62
Each
units
Sight Glass 1/2 in BSP Brass 12 bar 1/2in BSP
RS Stock No. 486-205
BrandRS PRO
SGD31.21
Each
units
Single 1 in BSPP Brass 16 bar 1in BSP
RS Stock No. 720-9295
BrandRS PRO
SGD174.10
Each
units
Single - Stainless Steel - 40mm -
RS Stock No. 720-9273
BrandRS PRO
SGD165.84
Each
units
Single 3/4 in BSP Stainless Steel 25 bar 3/4in BSP
RS Stock No. 499-2650
BrandRS PRO
SGD109.34
Each
units
Single 1 in BSP Stainless Steel 14 bar 1in BSP
RS Stock No. 486-221
BrandRS PRO
SGD57.72
Each
units
Single 1-1/2 in BSPP Brass 16 bar 1-1/2in BSP
RS Stock No. 720-9320
BrandRS PRO
SGD201.14
Each
units
Sight Glass 1/2 in BSP Bronze 10 bar 1/2in BSP
RS Stock No. 340-3323
BrandRS PRO
SGD33.39
Each
units
Single 1-1/4 in BSP Brass 16 bar 1-1/4in BSP
RS Stock No. 720-9349
BrandRS PRO
SGD169.53
Each
units
Sight Glass 1 in BSP Brass 12 bar 1in BSP
RS Stock No. 499-2688
BrandRS PRO
SGD263.92
Each
units
Single 2 in BSP Stainless Steel 14 bar 2in BSP
RS Stock No. 486-158
BrandRS PRO
SGD16.72
Each
units
Single 3/4 in BSPP Brass 12 bar 3/4in BSPP
RS Stock No. 486-233
BrandRS PRO
SGD61.17
Each
units
Single 2 in BSPP Brass 12 bar 2in BSPP
RS Stock No. 486-164
BrandRS PRO
SGD21.35
Each
units
Single 1 in BSPP Brass 12 bar 1in BSPP
Related Products
Speedfit® valves, connectors and couplers, made from Acetal ...
Description:
Speedfit® valves, connectors and couplers, made from Acetal and suitable for hot and cold water systems operating up to 65°C. May be used with 15mm copper or polyethylene pipe. Maximum working pressures are 12 bar at 20°C and 6 bar ...
The function fittings of RS Pro have been ...
Description:
The function fittings of RS Pro have been designed to suit a specific use. With a large variety of materials (brass, stainless steel, technopolymer, aluminium) they respond to the most extreme demand of pneumatic: flow controls, pressure regulators, unidirectional valves, ...
Valves and control modules designed specifically to operate ...
Description:
Valves and control modules designed specifically to operate together, provide a valve opening which is proportional to the input signal and allows this to be correlated to the respective operating conditions. E290 series range of solenoid valves, 2 // 2 ...
Applications: SteamMin. Set pressure 0.2 bargOverpressure 10%Blowdown Gases ...
Description:
Applications: SteamMin. Set pressure 0.2 bargOverpressure 10%Blowdown Gases 10%, liquids 20%Connections: Threaded BSP / NPTDischarge coefficients k= 0.55 for gases, k= 0.48 for liquidsDesign EN-12516-1, EN-4126-1/7DIN 259 and ANSI B2.1Rating PN-40Material Stainless steel 316LMaterials ENTemperature range -10 → ...