Global Steel is a leading Check Valves (Nrv) & Piston manufacturer that creates this valve only to permit one direction of fluid flow. A valve is opened by fluid pressure that allows flow through a device, whereas a valve is closed by any flow inversion. A body-guided disc that travels up and down inside the body is used for piston or lift check valves.
When the valve is closed, the body guides ensure that the seat and disc arrangement are correctly aligned. The intake line’s pressure and flow rate will push the disc to “float” off the chair, enabling the line liquid to stream through the valve because the valve is installed with the flow below the disc.
Table of Content
A reverse SS Check Valves (Nov) & Piston is one kind of valve that stops the fluid flow. This kind of valve is mechanically automated. Therefore neither a valve operator nor an actuator is required. When a Check Valves & Piston works, a dash-pot made of a cylinder and a piston is used to provide a cushioning effect. The piston type check valve has guides that improve the disc and seat configuration’s correct alignment when the piston shuts. From below the valve disc, the fluid passes through the valve.
Types of Check Valves (Nrv) & Piston-
MOC | CS, SS, DSS, SDSS, SASS, MONEL, HASTELLOY, INCONEL, TITANIUM, TANTALUM, BRASS, IC |
SIZES | “1/4 to 1/2” |
FUNCTION | 2 WAY, 3 WAY, 5 WAY |
BODY SHAPE | SQUARE, RECTANGLE |
WORKING PRESSURE | VALVES ARE ALSO AVAILABLE WHICH COULD HANDLE HIGHER PRESSURE, UP TO 6000 PSIG |
END CONNECTION | NPT, BSP, BSPT, SW, METRIC. |
TEMPERATURE RATINGS | (232C)/GRAFOIL 700 F(371C), PTFE 450F |
PRESSURE RATING | 3000, 6000, 9000 PSI |
APPLICATION | POWER/ GAS/ PETROLEUM/ CHEMICAL/ METALLURGY/ SHIPBUILDING ETC. |
ENDS | FLANGE ENDS, SCREWED ENDS,SOCKET WELD ENDS |
TYPE | R TYPE, T TYPE, H TYPE |
TEMPERATURE RATING | (232C)/GRAFOIL 700 F(371C),PTFE 450F |
Contact us to get a quick quote for your requirement.
We offer These Stainless Steel Check Valves (nrv) & Piston as per DIN, ISO, JIS or ANSI Standard.
DESCRIPTION |
BARSTOCK |
FORGING |
UNS GRADE |
CASTING |
---|---|---|---|---|
Carbon Steel |
A105 |
A105 |
K30504 |
A216 WCB |
Low Temp Carbon |
A350 LF2 |
A350 LF2 |
K03011 |
A352 LCB |
High Yield Steel |
A694 F60 |
A694 F60 |
K03014 |
– |
3 1/2 Nickel Steel |
A350 LF3 |
A350 LF3 |
K32025 |
A352 LC3 |
5 Chrome, 1/2 Moly |
A182 F5 |
A182 F5 |
K41545 |
A217 C5 |
1 1/4 Chrome, 1/2 Moly |
A182 F11 |
A182 F11 |
K11597 |
A217 WC6 |
2 1/4 Chrome, 1 Moly |
A182 F22 |
A182 F22 |
K21590 |
A217 WC9 |
9 Chrome, 1 Moly |
A182 F9 |
A182 F9 |
K90941 |
A217 WC6 |
13 Chrome |
A276 or A479 410 |
A182 F6A |
S41000 |
A351 CA15 |
304 |
A276 or A479 304 |
A182 F304 |
S30400 |
A351 CF8 |
304L |
A276 or A479 304L |
A182 F304L |
S30403 |
A351 CF3 |
316 |
A276 or A479 316 |
A182 F316 |
S31600 |
A351 CF8M |
316L |
A276 or A479 316L |
A182 F316L |
S31603 |
A351 CF3M |
317L |
A276 or A479 317L |
A182 F317L |
S31703 |
A351 CG8M |
321 |
A276 or A479 321 |
A182 F321 |
S32100 |
– |
347 |
A276 or A479 347 |
A182 F347 |
S34700 |
A351 CF8C |
17-4PH |
– |
A564 630 |
S17400 |
– |
Alloy 400 |
B164 N04400 |
B564 N04400 |
N04400 |
A494 M35-1 |
Alloy K500 |
B865 N05500 |
– |
N05500 |
– |
Alloy 800 |
B408 N08800 |
B564 N08810 |
N08800 |
– |
Alloy 825 |
B425 N08825 |
– |
N08825 |
– |
Alloy 600 |
B166 N06600 |
B564 N06600 |
N06600 |
A494 CY40 |
Alloy 625 |
B446 N06625 |
B564 N06625 |
N06625 |
A494 CW 6MC |
Alloy B2 |
B335 N10665 |
B564 N10665 |
N10665 |
A494 N 12MV |
Alloy C |
– |
– |
N10002 |
A494 CW6M |
Alloy C22 |
B574 N06022 |
B574 N06022 |
N06022 |
A494 CX2MW |
Alloy C276 |
B574 N10276 |
B564 N10276 |
N10276 |
A494 CW12 MW |
22% Duplex |
A276 or A479 S31803 |
A182 F51 |
S31803 |
A890 Gr 4A |
25% Duplex |
A276 or A479 S32750 or 60 |
A182 F53 |
S32750 or 32760 |
A890 Gr 6A |
254SMO |
A182 F44 |
A182 F44 |
S31254 |
A351 CK3MCuN |
904L |
B649 N08904 |
B625 N08904 |
N08904 |
– |
Titanium |
B348 Gr 2 |
B381 F2 |
R50400 |
B367 C2 |
Pipe Size |
Flow Coefficient (Cv) |
Pressure Class |
Max. Pressure | Max. Steam Pressure |
Min. Opening Pressure, psi |
Temperature Range, °F |
End—End Lg.0 |
316 Stainless Steel Body |
|||||||
---|---|---|---|---|---|---|---|
Socket Connect × Socket Connect |
|||||||
1/4 | 4.02 | 200 | 200 psi @ 70° F | 150 psi @ 350° F | 0.05 | -20° – 400° | 2 9/16″ |
3/8 | 5.05 | 200 | 200 psi @ 70° F | 150 psi @ 350° F | 0.05 | -20° – 400° | 2 9/16″ |
1/2 | 7 | 200 | 200 psi @ 70° F | 150 psi @ 350° F | 0.05 | -20° – 400° | 2 9/16″ |
3/4 | 16 | 200 | 200 psi @ 70° F | 150 psi @ 350° F | 0.05 | -20° – 400° | 2 15/16″ |
1 | 30 | 200 | 200 psi @ 70° F | 150 psi @ 350° F | 0.05 | -20° – 400° | 3 9/16″ |
1 1/4 | 49 | 200 | 200 psi @ 70° F | 150 psi @ 350° F | 0.05 | -20° – 400° | 4 1/8″ |
1 1/2 | 72 | 200 | 200 psi @ 70° F | 150 psi @ 350° F | 0.05 | -20° – 400° | 4 11/16″ |
2 | 130 | 200 | 200 psi @ 70° F | 150 psi @ 350° F | 0.05 | -20° – 400° | 5 7/16″ |
2 1/2 | 280 | 200 | 200 psi @ 70° F | 150 psi @ 350° F | 0.05 | -20° – 400° | 6 1/8″ |
3 | 390 | 200 | 200 psi @ 70° F | 150 psi @ 350° F | 0.05 | -20° – 400° | 7 5/16″ |
Application Industry
Contact us at the Industrial nearest to you or submit a business inquiry online.
Global Steel is a significant manufacturer and exporter of all ferrous and non-ferrous metals. As a pioneer and leader in the industry, Global Steel is at the forefront of technology and research.
Shop No.6, Sonarika Bldg, 25/C, Chandawadi, Cawasji Patel Tank, Mumbai, Maharashtra 400004
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