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客户提供的关于阀门安装的说明，求大虾帮忙翻译解释一下，谢谢, ]# J) b& c4 z
Installation. [0 v- J- }, }
Don`t use flange sealings. The seat ring of the Butterfly valves has a sealing lip which operates as flange
( e6 L- T7 \' K' i- @gasket between valve and flange during mounting.0 T5 y1 t( x4 P
• Insert the valve with the disc in the nearly closed position between the flanges. lf the flanges are located too& T9 A7 D5 `+ F$ [% g
closely in an existing pipe, they must be so spreaded by means of a special device that the valve can be+ b2 H6 C2 e6 ~7 o% L) N
easily installed with clearance .+ k q; a6 |, p* _: J2 c! l
• Mount the flange boIts and centre and align the valve between the flanges. Hand-screw the flange bolts./ Z8 m+ T, b" l6 a7 e4 [
Spot weld the flanges to the pipe .
+ s$ Z( ?% a2 a3 ?* i9 I( a& F1 P• Before cross-tightening the flange bolts uniformly, it must be ensured by the test actuation that the valve0 | h/ F) W! C
disc can move freely within the connecting flanges .2 ^# N$ @9 c; w7 S8 @9 E6 k
Attention! In case of improper insertion of the disc between the flanges, the seat ring may be displaced and9 y0 s" K9 p2 U' W) L5 J" X
destroyed during the first operations. Similarly, the sealing strip of the valve disc can be damaged if it is not
3 ~$ ^! {0 U# F8 wobserved that the disc can move freely between the flanges. |
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发表于 2009-3-2 14:44:55
