Butterfly Valve Series

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Structural drawing»

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The spring 20 on the relevant position

2011-09-20

(11), the new v belt 17

into the new seat 2, the spring 20 on the relevant position.
(12) the first

ball valve 3 into 1, is essential to stem the slot 4 with 3 goals.
90o will rotate the valve stem 4 to open. 2 sets of the seat on the ball, then sets of tapered roller

bearing 26 to the stud of 7 on the body 26 into the

valve body 1 and 2, just insert a valve seat 26 in the body.
(13) with (12)

method into the other side of the seat 2 and valve body 26.
(14) Tighten the

nut 8.
(15) operation

of the hoist drive check valve flexibility.
(16) air-

tightness test.
(17) mounted on

the pipeline, according to the requirements of air tightness test pipeline.
Full decomposition of the hex nut, O-ring 21 and thrust washer 31 of the replacement.
(1) Remove the

ball by 2.3 to decompose.
(2) decomposed

by 2.2.
(3) Remove the

valve stem 4, remove the thrust washer 31 and O-ring 21.
(4) Check all

parts, if any damage to be repaired, the butterfly valve parts will be clean.
(5) lubrication

of the sealing surface, coated with a thin layer of grease on the stem.
(6) Install the

new O-ring 21 and thrust washer 31, mounted on the valve stem.
(7) according to

Section 2.2 for assembly.
(8) according to

Section 2.3 for assembly.
(9) operation of

the hoist drive check valve flexibility.
(10) air-

tightness test.

 

 

 

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