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

Filter

Visar 1 - 20 av 84 produkter
Resultat per sida
Beskrivning Pris Type Connection Body Material Maximum Working Pressure Thread Size Thread Standard
RS-artikelnummer 720-9282
VarumärkeRS PRO
1 029,47 kr
Each
Enheter
Single 1 in BSP Stainless Steel 25 bar 1in BSP
RS-artikelnummer 499-2688
VarumärkeRS PRO
1 151,50 kr
Each
Enheter
Single 2 in BSP Stainless Steel 14 bar 2in BSP
RS-artikelnummer 499-2650
VarumärkeRS PRO
667,22 kr
Each
Enheter
Single 1 in BSP Stainless Steel 14 bar 1in BSP
RS-artikelnummer 720-9273
VarumärkeRS PRO
899,53 kr
Each
Enheter
Single 3/4 in BSP Stainless Steel 25 bar 3/4in BSP
RS-artikelnummer 896-8355
Tillv. art.nr1/4SCV
VarumärkeJohn Guest
669,53 kr
1 Bag of 10
Påse(ar)
Single 1/4 in Push Fit Acetal Copolymer 10 bar - -
RS-artikelnummer 458-6801
Tillv. art.nr4890 21 21
VarumärkeLegris
888,41 kr
Each
Enheter
Single 1/2 in G Stainless Steel 40 bar 1/2in G
RS-artikelnummer 794-8388
Tillv. art.nrFLOW235001
73,44 kr
Each
Enheter
Single 15 mm BSP Female Brass 10 bar 15mm BSP
RS-artikelnummer 720-9295
VarumärkeRS PRO
1 170,17 kr
Each
Enheter
Single - Stainless Steel - 40mm -
RS-artikelnummer 794-8353
Tillv. art.nrFIBV246908
129,78 kr
Each
Enheter
Double 1/8 in BSP Brass 6 bar 1/8in BSP
RS-artikelnummer 340-3301
VarumärkeRS PRO
103,79 kr
Each
Enheter
Single 3/4 in BSP Brass 16 bar 3/4in BSP
RS-artikelnummer 794-8394
Tillv. art.nrFLOW235004
102,77 kr
Each
Enheter
Single 1/2 in BSP Female Brass 10 bar 1/2in BSP
RS-artikelnummer 720-9279
VarumärkeRS PRO
725,84 kr
Each
Enheter
Single 1/2 in BSP Stainless Steel 25 bar 1/2in BSP
RS-artikelnummer 458-6788
Tillv. art.nr4890 13 13
VarumärkeLegris
597,65 kr
Each
Enheter
Single 1/4 in G Stainless Steel 40 bar 1/4in G
RS-artikelnummer 720-9305
VarumärkeRS PRO
1 589,07 kr
Each
Enheter
Single - Stainless Steel 40 bar 50mm ANSI
RS-artikelnummer 499-2672
VarumärkeRS PRO
1 007,54 kr
Each
Enheter
Single 1-1/2 in BSP Stainless Steel 14 bar 1-1/2in BSP
RS-artikelnummer 794-8410
Tillv. art.nrFLOW235908
450,74 kr
Each
Enheter
Single 1-1/2 in BSP Female Brass 10 bar 1-1/2in BSP
RS-artikelnummer 214-0655
Tillv. art.nr161561067
VarumärkeGeorg Fischer
1 716,35 kr
Each
Enheter
Single - PVC-U 16 bar - -
RS-artikelnummer 486-160
VarumärkeRS PRO
197,38 kr
Each
Enheter
Single 1-1/4 in BSPP Brass 12 bar 1-1/4in BSPP
RS-artikelnummer 284-2755
VarumärkeRS PRO
3 207,76 kr
Each
Enheter
Single 2 in BSPT Bronze 25 bar 2in BSPT
RS-artikelnummer 794-8366
Tillv. art.nrFLOW230005
106,57 kr
Each
Enheter
Double 1/2 in BSP Female Brass 10 bar 1/2in BSP
Relaterte Produkter
RS Pro Brand Screwed End Swing Check Valves ...
Description:
RS Pro Brand Screwed End Swing Check Valves that allow liquids to flow in only one direction. 1/2 - 3" (DN15 - DN80)W.P: 200 WOGW.T: -20°C - 200°C (-4°F - 392°F)Investment castingSocket weld (option)Thread type: ASME B1.20.1 (NPT), DIN 2999 ...
Single check valve protects against the risk of ...
Description:
Single check valve protects against the risk of back flow and back syphonage contaminationsCompact lightweight construction for easy installationMinimum pressure drop giving good flow ratesIdeal for all Class 2 contamination risks as per Water Supply (water fittings) Regulations 1999Available with ...
The 316 stainless steel sprung disc check valve ...
Description:
The 316 stainless steel sprung disc check valve is suitable for ANSI and EN flanges. • Low pressure drop• Simple and compact design• Overall lengths according to DIN 3202 part 3-K4• Horizontal or vertical installation.
Designed for use with aggressive fluids in corrosive ...
Description:
Designed for use with aggressive fluids in corrosive environmentsSuited to higher pressure and temperature applicationsOne piece full bore constructionOperating Temperature to +200°C’O’ rings: Viton rubber.