客戶提供的關于閥門安裝的說明,，求大蝦幫忙翻譯解釋一下,，謝謝

charles006

客戶提供的關于閥門安裝的說明,，求大蝦幫忙翻譯解釋一下，謝謝
# l6 S1 e/ g$ x- \Installation
2 A: \5 |# {6 V& q4 z0 o4 x/ YDon`t use flange sealings. The seat ring of the Butterfly valves has a sealing lip which operates as flange
gasket between valve and flange during mounting.
• Insert the valve with the disc in the nearly closed position between the flanges. lf the flanges are located too
4 {: h8 N5 X, xclosely in an existing pipe, they must be so spreaded by means of a special device that the valve can be
easily installed with clearance .
• Mount the flange boIts and centre and align the valve between the flanges. Hand-screw the flange bolts.
Spot weld the flanges to the pipe .
( D- L  K* l+ i$ D  d7 r1 s" G% W9 {• Before cross-tightening the flange bolts uniformly, it must be ensured by the test actuation that the valve
+ L) W$ e6 Y/ U. Xdisc can move freely within the connecting flanges .
; x. `9 i2 j( Z6 bAttention! In case of improper insertion of the disc between the flanges, the seat ring may be displaced and
) V8 J8 \2 p7 z+ Udestroyed during the first operations. Similarly, the sealing strip of the valve disc can be damaged if it is not
8 F5 M& ~6 l, I" sobserved that the disc can move freely between the flanges.

左旋貝殼

安裝
, o* p& G) ?* A' ~
! u* L2 J! o1 G+ r- }請勿使用法蘭密封件,。蝶閥閥座密封面上有一圈密封唇可以充當閥與法蘭之間的墊片,。（刀口法蘭？還是組合墊,？）
% J8 }: [! d7 k4 n/ ~4 ^
6 @" l* L* @: T6 Q" T( b將閥門關閉后,，將裝好閥板的閥門插入到法蘭之間。如果法蘭離現(xiàn)有的管路太近,，應通過一種特殊設備將管路撐開,，以便騰出安裝間隙。
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# }2 V* K/ D% L( R9 w裝上法蘭螺栓,，對準閥門和法蘭的中心,。
. `/ t6 Y; L  c& ~# v" B0 G* z擰緊法蘭螺栓。
: h! i# C3 F, G* M) b現(xiàn)場將法蘭焊接到管路中,。
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  b& ~4 W4 |. x( O" T8 W- M在交叉擰緊法蘭螺栓之前,，必須測試閥板在運動時與所連接的法蘭不會發(fā)生干涉。

注意,！一旦安裝閥板錯誤（與法蘭干涉）,，閥座密封圈會在第一次運動時位移并損壞,。同樣的,，如果沒有注意閥板是否能在法蘭間自由運動，閥板的密封圈會被損壞,。

學著

翻譯的不錯,！( ^_^ )