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.

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Description Price Type Connection Body Material Maximum Working Pressure Thread Size Thread Standard
RS Stock No. 366-4657
Mfr. Part No.223300
HK$1,901.90
Each
units
Single 3/4 in BSPP Bronze 3.6 bar 3/4in BSPP
RS Stock No. 510-3766
BrandRS PRO
HK$331.76
Each
units
Single 1 in BSPT Bronze 20 bar 1in BSPT
RS Stock No. 282-0828
BrandRS PRO
HK$599.00
Each
units
Single 1/2 in BSPT Bronze 25 bar 1/2in BSPT
RS Stock No. 510-3750
BrandRS PRO
HK$445.59
Each
units
Single 1-1/4 in BSPT Bronze 20 bar 1-1/4in BSPT
RS Stock No. 340-3301
BrandRS PRO
HK$83.28
Each
units
Single 3/4 in BSP Brass 16 bar 3/4in BSP
RS Stock No. 696-8731
BrandConvac
HK$6,925.15
Each
units
- - - - - -
RS Stock No. 367-9441
Mfr. Part No.222000
HK$1,080.16
Each
units
Sight Glass 1/2 in BSPP Brass 3.5 bar 1/2in BSPP
RS Stock No. 794-8404
Mfr. Part No.FLOW235005
HK$118.63
Each
units
Single 3/4 in BSP Female Brass 10 bar 3/4in BSP
RS Stock No. 284-2733
BrandRS PRO
HK$1,474.04
Each
units
Single 1-1/4 in BSPT Bronze 25 bar 1-1/4in BSPT
RS Stock No. 340-3317
BrandRS PRO
HK$129.27
Each
units
Single 1 in BSP Brass 16 bar 1in BSP
RS Stock No. 178-0060
Mfr. Part No.2224110
BrandWatts
HK$50.35
Each
units
- 3/4 in Brass 10 bar - -
RS Stock No. 896-8355
Mfr. Part No.1/4SCV
BrandJohn Guest
HK$587.79
1 Bag of 10
Bag(s)
Single 1/4 in Push Fit Acetal Copolymer 10 bar - -
RS Stock No. 720-9279
BrandRS PRO
HK$770.36
Each
units
Single 1/2 in BSP Stainless Steel 25 bar 1/2in BSP
RS Stock No. 214-0598
Mfr. Part No.161561062
HK$624.74
Each
units
Single - PVC-U 16 bar 1/2in -
RS Stock No. 486-237
BrandRS PRO
HK$270.71
Each
units
Single 1-1/2 in BSPP Brass 12 bar 1-1/2in BSPP
RS Stock No. 794-8413
Mfr. Part No.FLOW235909
HK$512.86
Each
units
Single 2 in BSP Female Brass 10 bar 2in BSP
RS Stock No. 340-3345
BrandRS PRO
HK$396.17
Each
units
Single 2 in BSP Brass 16 bar 2in BSP
RS Stock No. 499-2650
BrandRS PRO
HK$644.76
Each
units
Single 1 in BSP Stainless Steel 14 bar 1in BSP
RS Stock No. 794-8381
Mfr. Part No.FLOW230009
HK$836.04
Each
units
Double 1-1/2 in BSP Female Brass 10 bar 1-1/2in BSP
RS Stock No. 486-170
BrandRS PRO
HK$70.19
Each
units
Single 3/8 in BSPP Brass 12 bar 3/8in BSPP