What is the purpose of a SS non-return valve in a water pipeline?
The SS non return valve enables the fluid to flow only in one direction. It is used to ensure that the medium flows through the pipe on the right direction and the pressure does not cause a reverse flow.
Do non return valves restrict flow?
The nrv valve do restrict flow, but the amount of restriction depends on the type of the non return valve.
Can a Pneumatic Non-Return Valve Affect Water pressure?
The pneumatic non-return valves are used to ensure that the medium flows through the pipe in the right direction. It controls the pressure inside to prevent reverse. Thus, the pneumatic nrv valve can be used for increasing the water pressure.
How do I know if my non-return valve is working?
The failure of the 1/2 stainless steel non return valve is indicated by symptoms like vibration, losing some internal parts, reverse flow, and excessive wear or damage of the components. If none of this happens, your nrv ball valve is working fine.
Difference between swing type non-return valve & wafer non return valve
The swing type non-return valve allows unidirectional flow and prevents the liquid to flow to its source.
The wafer type non return valve is used in various industrial settings. It helps to convey different types of liquid like slurries, gases, vapours, etc.
Stainless steel Non Return valve Specification
Temperature
-45°C to 100°C
Connection
BSP, BSPT, NPT, Flanged, Welded
Standards
BS 1868, API 6D, ASME B16.34
Buy NRV Ball valve & SS316 Non Return Valve in Class 150, 300, 400, 600, 900, 1500, 2500, 4500 as per ASME B16.34
Stainless Steel Non Return Valve Price List
Tube Size |
Grade |
Price AED/ Pcs |
Price USD/ Pcs |
3/4 |
SS 303 |
AED 522.82 |
US $142.34 |
1 |
SS 303 |
AED 562.08 |
US $153.03 |
1 1/4 |
SS 303 |
AED 761.46 |
US $207.31 |
What are the Benefits of non return Valves?
- Robust Design
- Suited for usage in harsh conditions or with a variety of substances
- Suitable for a variety of fluids
- Diminished dimensions
- External surfaces that are smooth aid in keeping equipment clean.
- A flow direction indicator guards against improper installation
- Installation-friendly hexagonal body
Stainless Steel Non Return valves Symbols

Wafer Type Non Return Valve and SS Nrv Valve in manual, conical gear, electric, and pneumatic functions
Types of SS Non Return Valve

Stainless Steel Non Return Valve

SS 304 Nrv Valve

SS Non Return Valve

SS316 Non Return Valves

Wafer Type Non Return Valve

SS Screwed End Non Return Valves

A351 CF8 304 Non Return Valve

PN16 Flanged Stainless Steel Swing Check Valve

SS 304 Non Return Valve
SS 304 Nrv Valve Grades
Grade |
Unified Numbering System |
Casting |
Forging |
304L |
S30403 |
A351 CF3 |
A182 F304L |
304 |
S30400 |
A351 CF8 |
A182 F304 |
316L |
S31603 |
A351 CF3M |
A182 F316L |
316 |
S31600 |
A351 CF8M |
A182 F316 |
317L |
S31703 |
A351 CG8M |
A182 F317L |
321 |
S32100 |
|
A182 F321 |
254SMO |
S31254 |
A351 CK3MCuN |
A182 F44 |
347 |
S34700 |
A351 CF8C |
A182 F347 |
174PH |
S17400 |
|
A564 630 |
904L |
N08904 |
|
B625 N08904 |
Buy Flanged and Screwed End Non Return Valves from KNPC approved suppliers at best price, check hydraulic non return valve sizes and dimensions
Stainless Steel Non Return Valve Dimension Chart
Nominal Pipe Size DN |
65 |
100 |
50 |
80 |
250 |
150 |
450 |
125 |
200 |
500 |
300 |
400 |
350 |
750 |
600 |
L-L1(RF-BW) |
292 |
356 |
267 |
318 |
622 |
444 |
978 |
400 |
533 |
1016 |
711 |
864 |
838 |
1594 |
1346 |
H |
185 |
270 |
180 |
210 |
385 |
360 |
590 |
345 |
370 |
614 |
440 |
554 |
520 |
866 |
614 |
L2(RTJ) |
308 |
371 |
283 |
333 |
638 |
460 |
994 |
416 |
549 |
1036 |
727 |
879 |
854 |
1619 |
1368 |
Talk to multiple verified wafer non return valve suppliers in Dubai and get the perfect material at best price in Middle East
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Different Non Return Valve types
- Swing check Non Return valves
- Ball Non Return valves
- Folding Disc Non Return valves
- Diaphragm Non Return valves
- Tilting Disc Non Return valves
- In-line Non Return valves
- Stop check Non Return valves
- Lift check Non Return valves
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