Manual Flanged Butterfly Valve

Manual Flanged Butterfly Valve

Purpose

This product is used for the water supply and drainage system in tap water, sewage, building, chemical etc. industries, usually used as an open-close equipment.

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Features

  • Single/double eccentric structure, strictly sealing, long durable.

Performance Parameters

  • DN: DN50~2000mm .
  • PN: PN1.0MPa. PN1.6MPa
  • Strength test: 1.5MPa, 2.4MPa
  • Sealing test: 1.1MPa. 1.76MPa.
  • Suitable temperature: =120°C.
  • Suitable media: Water, low temperature steam,
    oil goods, coal gas, seawater, sewage, etc.

Executive Standard

  • Design and manufacture standard : GB/T12238-2008.
  • Flange connection dimension: GB/T9113.1, GB/T 17241.6.
  • Structural Length: GB/T12221.
  • Pressure Test: GB/T13927

Main Part Materials

  • Body—Ductile iron/Cast steel.
  • Valve plate — Ductile iron/Grey cast iron/Cast steel.
  • Valve plate— Ductile iron/Grey cast iron/Cast steel.
  • Sealing ring—NBR/EPDM/Fluorine rubber.
  • packing—Flexible graphite/V—Type rubber pad.

Main dimensions
DN
50
65
80
100
125
150
200
250
300
350
400
450
500
600
700
800
900
1000
1200
1400
1600
1800
2000
L
108
112
114
127
140
140
152
165
178
190
216
222
229
267
292
370
330
410
470
530
600
670
760
H
117
137
140
150
182
190
210
251
290
298
336
380
390
461
496
568
1765
1890
2255
2495
2880
2953
3232
H1
310
333
423
440
455
210
610
680
780
846
859
1003
1106
1200
1403
1449
630
690
820
950
1100
1125
1232
A
125
125
425
125
125
125
160
165
175
175
210
210
210
210
320
320
248
248
248
368
368
B
193
193
193
193
193
193
283
283
334
334
425
425
425
425
620
620
600
600
600
655
655
DO
130
150
150
150
150
150
220
220
280
280
320
320
320
320
800
400
400
400
400
600
600

Note: Please Make A Call For Larger Norm Requirement.

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