WCB Cast Steel Flange Check Valve DN15 300LB RF Flange Connection
DN15 300LB RF WCB Cast Steel Flange Swing Check Valve
STANDARDS .
Design : API 600 .
Face to face dimensions : ASME B16.10 .
Flange dimensions : 2"~24" to ANSI B16.5, 22", 26"~36" to MSS-SP-44 to API605 on Request
Test : API 598 .
STRUCTURE .
OS&Y, Rising stem,Bolted Bonnet,Flexible Wedge
OTHER SPECIFICATIONS AVAILABLE .
Materials : WCB,WC6,WC9,C5,C12,LCB,LCC,CF8M,CF3,CF3M,CN7M,and other high temperature alloys.
End connections : Butt weld , Raised face , Ring type joint.
Seat : Removable or welded.
Trim :1,5,8,11,12.,etc.
Quick Details
|
Product Name |
CHECK VALVE |
|
Material |
stainless steel |
|
Color |
nickel white |
|
Standard |
DIN GB JIS ANSI |
|
Class |
150LB(16)~600LB(2500) |
|
Body and Ball Material |
CF8 CF3 CF8M CF3M WCB PVC UPVC PP |
|
Thread |
-29~150(PTFE), -29~200( PTFE+GLASS), -29~300(J2 PPL) |
|
Steam Seat and Gasket |
PTFE |
Stainless Steel Check Valve Standards
Face to face dimensions as ANSI B16.10
End flange dimension as ANSI B16.5
Pressure-temperature ratings as ANSI B16.34
Pressure test as API 598
Applicable Medium: water ,gas,oil,and other causticity medium.
Stainless Steel Check Valve Application:
Valve is used for preventing the back-going of medium in pipelines and equipments, and the pressure of
medium will bring the result of opening and closing automatically.
When the medium is back-going, valve disc will automaticaly closed to avoid accidents.
Stainless Steel Check Valve Test Pressure
|
Test Item |
Shell Test |
Seal Test |
Back Seal Test |
Air Seal Test |
|||||
|
Medium |
Water |
Air |
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|
Unit |
MPa |
lbf/in2 |
MPa |
lbf/in2 |
MPa |
lbf/in2 |
MPa |
lbf/in2 |
|
|
Pressure (Class) |
150 |
3.1 |
450 |
2.2 |
315 |
2.2 |
315 |
0.5-0.7 |
60-100 |
|
300 |
7.8 |
1125 |
5.6 |
815 |
5.6 |
815 |
|||
|
400 |
10.3 |
1500 |
7.6 |
1100 |
7.6 |
1100 |
|||
|
600 |
15.3 |
2225 |
11.2 |
1630 |
11.2 |
1630 |
|||
|
900 |
23.1 |
3350 |
16.8 |
2440 |
16.8 |
2440 |
|||
|
1500 |
38.4 |
5575 |
28.1 |
4080 |
28.1 |
4080 |
|||
Types of Valves
The type of disk will decide the type of valve. Most common types of Check valves are
-
Swing Type.
-
Top Hinged
-
Tilting disk
-
-
Lift Type
-
Piston Type
-
Ball type
-
-
Dual Plate Type
-
Stop Check Valve
Swing Check Valve
The disc in a swing type valve is unguided as it fully opens or closes. This Valve operates when there is flow
in the line and get fully closed when there is no flow. Turbulence and pressure drop in the valve is very low.
Disk and seat designs can be of metal to metal or metal to composite.
The angle between the seat and the vertical plane is known as the seating angle and varies from 0 to 45 degrees.
Usually, the seat angles are in the range of 5 to 7 degrees. Larger seat angles reduce the disc travel, resulting in
quick closing, thus minimizing the possibility of water hammer. A vertical seat has a 0-degree angle.
The swing type valve allows full, unobstructed flow and automatically closes as pressure decreases. Usually installed
in combination with gate valves because they provide relatively free flow combinations.
A basic swing type valve consists of a valve body, a bonnet, and a disk that is connected to a hinge.
Packing Details:
We choose suitable wood cases according to different valves and arrange skilled workers to pack in case of bruise. Long term cooperated forwarder will book space, clear customs and transport for us without delay. There are three ways for transportation, by sea, by air and by train. We will arrange transportation according to customers' needs.
Delivery Details: According to the order, 7~60days
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.