Pipeline Valve dahna atana thil pawimawh tak takte

I. Installation hmaa inbuatsaihna

1. Valve specification model, pressure level, leh flow direction identification te chu design mamawh a tlin em tih enfiah thin ang che.

2. Valve body cavity fai leh fai loh enfiah la, packaging venhimna leh thil dang awmte chu paih chhuak rawh.

3. Butt welding connection valve te chu grooves neia siam hmasak a ngai a, flange connection valve te chu sealing surface integrity enfiah a ngai bawk.

II. Installation lam hawi Control

1. Globe valve lehvertical lift check valve a nivalve body-a arrow-in a tarlan lam hawiin khauh taka dah tur a ni.

2. Thu bulpuiah chuan, .non rising stem valve a ni, tui chi hrang hrang butterfly valve, leh ball valve te chu a sir lehlamah dah theih a ni a, mahse a hman awlsam zawk nan ngaihven tur a ni.

3. Electric / pneumatic valve te hian actuator hnathawh leh enkawl nan hmun an reserve a ngai.

III. Welding Install dan tur ruahmanna siam a ni

1. Welding laiin butt welding valve chu a chanve hawn reng tur a ni a, chu chuan thermal deformation avanga jamming a awm loh nan.

2. Argon arc welding hmangin base siam la, interlayer temperature chu valve rated temperature aia tam lo turin control rawh.

3. Welding zawhah valve chu a inhawng leh khar dan pangngaia a inhawng leh khar loh finfiah nan functionally test a ngai a ni.

IV. Flange Connection-a Point pawimawh tak takte

1. Flange sealing surface te chu parallel-in a awm reng a, deviation phalna sang ber chu flange pawn lam diameter 0.15% aia tam a ni lo.

2. Gasket chu a laiah dah tur a ni a, bolt te chu symmetrically leh evenly tighten tur a ni a, rated torque chu vawi thum chhung a thleng tur a ni.

3. Temperature sang tak valve connecting bolt te chu hot state ah vawi hnih tighten tur a ni.

V. Quality Control

1. Install zawhah chakna test leh sealing test neih a ngai.

2. System flush dawnin regulating valve, flow meter leh hmanraw dangte chu bypass tur a ni.

3. Installation record chu fill up tur a ni a, key data te chu valve position number, test pressure, operating torque, etc. te nen fill up tur a ni.

Note: Valve hi pipeline atana support point atan hman tur a ni lo. Valve lian tak tak tan chuan support frame hran a ngai a. Installation zawhah valve chu fully closed position-ah dah tur a ni a, cross-operation damage a awm loh nan venhim tur a ni.