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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
+ y' M! Q7 X% \2 W/ rInstallation# K5 e0 b% w/ m; W# V2 a; U
Don`t use flange sealings. The seat ring of the Butterfly valves has a sealing lip which operates as flange! X+ U# Q% Q# V+ E" u( r- m; C
gasket between valve and flange during mounting.0 C) T, @# q9 d# W% J3 S( e+ E
• Insert the valve with the disc in the nearly closed position between the flanges. lf the flanges are located too; o/ r. x/ K& }- e w+ B+ v, ?
closely in an existing pipe, they must be so spreaded by means of a special device that the valve can be) m9 c5 s* e5 J* L. ]
easily installed with clearance .1 q) T' j% A0 w$ J! a5 M# q9 ?# |
• Mount the flange boIts and centre and align the valve between the flanges. Hand-screw the flange bolts.3 A2 p" c& W6 B; S( {
Spot weld the flanges to the pipe .3 ?7 x% `7 w7 L7 w4 a( I
• Before cross-tightening the flange bolts uniformly, it must be ensured by the test actuation that the valve
n- g( R8 S$ ]- t% W0 odisc can move freely within the connecting flanges .8 N2 f1 e4 R: \3 Z/ w$ z
Attention! In case of improper insertion of the disc between the flanges, the seat ring may be displaced and
+ N. g, E# ]6 W! B' ^destroyed during the first operations. Similarly, the sealing strip of the valve disc can be damaged if it is not
- P7 p$ J# d: D9 ^7 P2 ]observed that the disc can move freely between the flanges. |
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发表于 2009-3-2 14:44:55
