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Grooved butterfly valve

Grooved butterfly valve

Model:D71

Size:DN50-DN300

Pressure:PN10,PN16,Class125

Temperature:-20℃-135℃

Body material:Cast Iron, Ductile Iron

Applicable medium:Water etc.

Introduction

Seat Materials: NBR, EPDM

Disc Materials: Ductile Iron + EPDM/NBR lined

Stem Materials: SS416

End Connection: Grooved

Operate: Manual, Worm gear, Pneumatic, Electric-Motorized

Both AS and BS standard are available.

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 D E F H I J L N O P K
2" 50 60.3 67 48.8 16 11 119 55 90 90 70 9 12 26
2.5" 61 69.1 73 59.8 16 11 125.5 62.5 90 97 70 9 12 26
3" 80 88.9 97 79.1 16 11 131.5 75 90 97 70 9 12 26
4" 101 114.3 122.5 99 16 11 151 90 90 116 70 9 14 30
5" 127 137 141.3 123.8 16 11 171.5 108 90 134 70 9 14 30
6" 150 165 175 146.8 16 11 183 118 90 134 70 9 14 30
8" 202 219 232 198.8 20.5 11 205.4 148 125 148 102 11 18 41
10" 253 278 286 248.8 20.5 11 250 186 125 160 102 11 18 41
12" 303 323.9 336.5 298.5 20.5 11 275 213 125 166 102 11 18 41

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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