DN15 ~ DN600 SS Non Return Valve With Flange End 150 Class ,
Material Grad 316
Specifications:
Swing Check Valve 8" 150# Flanged RF - B16.5 / B16.47 FB - Bolted
Cover
Body Material: A216 WCB
Ball/Disc/Plug: F6 (13% Cr.) / Seat Ring : CS+Stellite 6
Body Gasket : 304+Flex Graphite, Bolting : A193-B7M / A194-2HM,
NACE MR-01-75
Standards
Design and manufacture as BS1868, ANSI B16.34
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.
Test Pressure
| Test Item | Shell Test | Seal Test | Back Seal Test | Air Seal Test |
| Medium | Water | Air |
| 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 |
Brief introduction:
The check valve is designed and manufactured according well to API
6D and ANSI B 16.34. It can
work in
high temperature and pressure circumstance. It also have the
features of good appearance, nice
function and
superior. Widely used for petroleum, chemistry, water treatment
industries.
Features:
- Resist friction
Valve disc is given enough intensity and rigidity. Disc sealing
surface may be built up welded with
satellite alloy inlaid or other material responding to the users’
request.
- Agility of switch
Solid ping is precisely installed and provided with high intensity
to ensure operational performance
and service life of valve.
- Sealing credibility
The check valve adopt swing configuration. All the sealing part
inside the valve, so all exterior leak
may except the middle flange, and also the middle flange gasket may
be different
according to pressure class.
- Distortion compensating
The disc and the hinge are connected between slippery spherical
surface, and this makes the disc
can circumgyrate in a little angle and regulates the sealing
capability.
Mail part & material
| Item Name of parts | material |
| 1 | Body | WCB,CF8 |
| 2 | Seat | 304,A105+ satellite |
| 3 | Disc | 304,A105+ satellite |
| 4 | Gasket | Graphite+304 |
| 5 | Bonnet | WCB,CF8 |
| 6 | Yoke | WCB,CF8 |
| 7 | Hinge | WCB,CF8,2Cr13 |
| 8 | Hinge pin | 2Cr13,304 |
