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JIS Worm Gear Operated Wafer Butterfly Valve

Size Range:2~24"(DN50~DN600)

Pressure: 5K,10K,16K

Body Materials: Cast Iron, Ductile Iron, WCB , Stainless Steel, Bronze

Seat Materials: NBR, EPDM, VITON, PTFE

Disc Materials: Ductile Iron, WCB, CF8,CF8M, Al-bronze C958

Stem Materials: SS416, SS304, SS316

End Connection: Wafer

Operate: Worm gear, Pneumatic, Electric-Motorized

Disc type: With-pin, One shaft without pin, Double shaft without pin

Categories

Tel: +86 18538315922
Fax: +86-371-55883235
E-mail: weisidun@wsdvalve.com
Address: ZhengZhou,HeNan,China.

Features:

Single Eccentric Disc-Shaft

Anti-Blow Out Stem

Bi-Directional

Fire safe Design

Low Friction Body Seat

Zero Leakage

Inpection and Test :

Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.

Seat Test: 1.1 times the working pressure with water.

Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.

Special Test: On request, any other test can be carried out according to special instruction by client.

Parameters

WeiSiDun Group

 

SIZE A B C L JIS 10K Top Flange
mm in øK N-ød
40 1.5" 67 141 32 33 105 4-ø19 F05
50 2" 67 141 32 43 120 4-ø19 F05
65 2½" 75 151 32 46 140 4-ø19 F05
80 3" 95 160 32 46 150 8-ø19 F05
100 4" 111 180 32 52 175 8-ø19 F07
125 5" 129 193 32 56 210 8-ø23 F07
150 6" 142 207 32 56 240 8-ø23 F07
200 8" 170 240 45 60 290 12-ø23 F10
250 10" 206 270 45 68 355 12-ø25 F10
300 12" 238 316 45 78 400 16-ø25 F10
350 14" 267 368 45 78 445 16-ø25 F10
400 16" 298 400 51 86 510 16-ø27 F14
450 18" 318 422 51 105 565 20-ø27 F14
500 20" 349 479 57 130 620 20-ø27 F14
600 24" 410 562 70 152 730 24-ø33 F16

 

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