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Double stem wafer butterfly valve

Double stem wafer butterfly valve

Model:D71

Size:DN50-DN200

Pressure:PN10,PN16,Class125

Temperature:-20℃-135℃

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

Applicable medium:Water etc.

Introduction

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: Manual, Worm gear, Pneumatic, Electric-Motorized

Disc type: Double stem no-pin

Features

Single Eccentric Disc-Shaft

Anti-Blow Out Stem

Bi-Directional

Fire safe Design

Low Friction Body Seat

Zero Leakage

Technical parameters

 
SIZE A B C L ANSI 150B DIN PN 10 DIN PN 16 JIS 10K ISO 5211 Top Flange
mm in øK N-ød øK N-ød øK N-ød øK N-ød øD øD1 N-øG
40 1.5" 67 141 32 33 98.5 4-ø16 110 4-ø18 110 4-ø18 105 4-ø19 65 50 4-ø8 F05
50 2" 67 141 32 43 120.6 4-ø19 125 4-ø18 125 4-ø18 120 4-ø19 65 50 4-ø8 F05
65 2½" 75 151 32 46 139.7 4-ø19 145 4-ø18 145 4-ø18 140 4-ø19 65 50 4-ø8 F05
80 3" 95 160 32 46 152.4 4-ø19 160 8-ø18 160 8-ø18 150 8-ø19 65 50 4-ø8 F05
100 4" 111 180 32 52 190.5 8-ø19 180 8-ø18 180 8-ø18 175 8-ø19 90 70 4-ø10 F07
125 5" 129 193 32 56 215.9 8-ø22.4 210 8-ø18 210 8-ø18 210 8-ø23 90 70 4-ø10 F07
150 6" 142 207 32 56 241.3 8-ø22.4 240 8-ø22 240 8-ø22 240 8-ø23 90 70 4-ø10 F07
200 8" 170 240 45 60 298.4 8-ø22.4 295 8-ø22 295 12-ø22 290 12-ø23 125 102 4-ø12 F10
250 10" 206 270 45 68 361.9 12-ø25.4 350 12-ø22 355 12-ø26 355 12-ø25 125 102 4-ø12 F10
300 12" 238 316 45 78 431.8 12-ø25.4 400 12-ø22 410 12-ø26 400 16-ø25 125 102 4-ø12 F10

Technical standard

Valve Design: API 609, MSS SP-67

Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1

Pressure Test: API 598

Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16

Top Flange: ISO5211

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