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庫存編號 366-4657
製造零件編號223300
TWD8,000.00
單位
Single 3/4 in BSPP Bronze 3.6 bar 3/4in BSPP
全新
RS庫存編號 215-0284
製造零件編號4892 13 13
BrandLegris
TWD4,586.50
/個 (每包:2個)
單位
Single - Stainless Steel 40 bar G1/4 -
RS庫存編號 458-6788
製造零件編號4890 13 13
BrandLegris
TWD2,522.00
單位
Single 1/4 in G Stainless Steel 40 bar 1/4in G
全新
RS庫存編號 215-0285
製造零件編號4892 17 17
BrandLegris
TWD5,154.50
/個 (每包:2個)
單位
Single - Stainless Steel 40 bar G3/8 -
RS庫存編號 486-160
BrandRS PRO
TWD728.00
單位
Single 1-1/4 in BSPP Brass 12 bar 1-1/4in BSPP
全新
RS庫存編號 215-0287
製造零件編號4892 21 21
BrandLegris
TWD5,835.50
/個 (每包:2個)
單位
Single - Stainless Steel 40 bar G1/2 -
RS庫存編號 284-2727
BrandRS PRO
TWD6,449.00
單位
Single 1 in BSPT Bronze 25 bar 1in BSPT
RS庫存編號 917-1943
製造零件編號445786
TWD3,256.00
單位
Sight Glass 3/4 in Rp Female Brass 12 bar 3/4in BSP
RS庫存編號 499-2638
BrandRS PRO
TWD1,907.00
單位
Single 3/4 in BSP Stainless Steel 14 bar 3/4in BSP
RS庫存編號 499-2672
BrandRS PRO
TWD5,014.00
單位
Single 1-1/2 in BSP Stainless Steel 14 bar 1-1/2in BSP
RS庫存編號 214-0598
製造零件編號161561062
TWD2,610.00
單位
Single - PVC-U 16 bar 1/2in -
RS庫存編號 486-148
BrandRS PRO
TWD279.00
單位
Single 1/2 in BSPP Brass 12 bar 1/2in BSPP
RS庫存編號 458-6794
製造零件編號4890 17 17
BrandLegris
TWD3,099.00
單位
Single 3/8 in G Stainless Steel 40 bar 3/8in G
RS庫存編號 896-8355
製造零件編號1/4SCV
BrandJohn Guest
TWD2,315.00
毎包:10 個
Bag(s)
Single 1/4 in Push Fit Acetal Copolymer 10 bar - -
RS庫存編號 284-2733
BrandRS PRO
TWD5,794.00
單位
Single 1-1/4 in BSPT Bronze 25 bar 1-1/4in BSPT
RS庫存編號 499-2650
BrandRS PRO
TWD2,564.00
單位
Single 1 in BSP Stainless Steel 14 bar 1in BSP
RS庫存編號 486-164
BrandRS PRO
TWD487.00
單位
Single 1 in BSPP Brass 12 bar 1in BSPP
RS庫存編號 340-3323
BrandRS PRO
TWD774.00
單位
Single 1-1/4 in BSP Brass 16 bar 1-1/4in BSP
RS庫存編號 720-9320
BrandRS PRO
TWD4,522.00
單位
Sight Glass 1/2 in BSP Bronze 10 bar 1/2in BSP
全新
RS庫存編號 215-0281
製造零件編號4890 10 10
BrandLegris
TWD3,698.50
/個 (每包:2個)
單位
Single - Stainless Steel 40 bar G1/8 -