Specifications:
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Forged Steel Bellows Seal Gate Valve
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1.？？？？ Bellows Sealed
2.？？？？ Zero environmental leakage
3.？？？？ High-strength multi-ply bellows
4.？？？？ OS&Y - outside screw and yoke
5.？？？？ Flexible graphite packing
6.？？？？ Solid hardened wedge
7.？？？？ Hard-faced seats
8.？？？？ The bellows is the primary sealing element between the valve stem/packing leak path and the environment.
9.？？？？ The main purpose for a bellows in a gate or globe valve is to eliminate the stem packing leak path.
10.The bellows design length must be such that the unit convolution deection and total number of convolutions will support the full stroke of the valve.
Material:Carbon, stainless steel and other materials
11.Socket weld ends: ASME B 16.11
Threaded ends: ANSI/ASME B 1.20.1
Butt-welded ends: ANSI B16.25
Flange ends: ANSI B16.5
|
Item |
Test Pressure(MPa) |
|
Sheet test |
15.0 |
|
Back seal test |
/ |
|
Closure seal test |
11.0 |
|
Closure test(Air) |
0.6 |
Zhejiang xiongtai valve manufacturing Co., Ltd., eattablished in 1998 and situated in Oubei Yongjia, a China hometown of pump and valve is a plant integrating R&D, production, sales and survi of valves and has abundent strengths and plentiful production experience with a staff of about 200 involving several steel valve and steel valve etc., and has obtained certifications of ISO9001, API6D, TS and so on.
