Manual Soft-sealed Wafer Butterfly Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
D71X manual soft-sealed wafer butterfly valves
Technical performance
The main features of D71X manual soft-sealed wafer butterfly valve are: 1, simple and compact structure, 90 ° turning to open quickly; 2, small lightweight, disassembly and maintenance easily, and it can be installed anywhere; 3, D71X manual soft-sealed wafer butterfly valve operating torque is small, and the switch is light; 4, flow characteristics tend to a straight line, and good regulating performance; 5, the number of open and close tests up to 10000 times, a long service life; 6, good sealing performance, and the gas test leakage is zero. D71X manual soft-sealed wafer butterfly valve uses a variety of part materials matching, is applicable to fresh water, sewage, water, steam, gas, food, pharmaceutical, oil and various acid-base media pipes, suitable temperature -10 ° C +150 ° C, and the connection standard is according with GB2555-81 standard. The materials selection of main parts of D71X manual soft-sealed wafer butterfly valve are : Body material: cast iron, ductile iron, stainless steel, copper alloy, aluminum alloy; disc material: ductile iron, stainless steel, corrosion resistant steel, titanium steel, copper alloy ; Seat: NBR, EPDM, neoprene, hypalon, PTFE, natural rubber,etc.
Dimensions & constructral diagram
D71X manual soft-sealed wafer butterfly valve constructral diagram(pic1)
D71X manual soft-sealed wafer butterfly valve constructral diagram(pic2)
The main external and connection dimensions of D71X-6/10/16
| DN(mm) | L | H | HO | A | B | 0.6MPa | 1.0MPa | 1.6MPa | |||
| Do | n-d | Do | n-d | Do | n-d | ||||||
| 50 | 43 | 63 | 235 | 270 | 110 | 110 | 4-14 | 125 | 4-18 | 125 | 4-18 |
| 65 | 46 | 70 | 250 | 270 | 110 | 130 | 4-14 | 145 | 4-18 | 145 | 4-18 |
| 80 | 46 | 83 | 275 | 270 | 110 | 150 | 4-18 | 160 | 8-18 | 160 | 8-18 |
| 100 | 52 | 105 | 316 | 270 | 110 | 170 | 4-18 | 180 | 8-18 | 180 | 8-18 |
| 125 | 56 | 115 | 340 | 310 | 110 | 200 | 8-18 | 210 | 8-18 | 210 | 8-18 |
| 150 | 56 | 137 | 376 | 310 | 110 | 225 | 8-18 | 240 | 8-22 | 240 | 8-22 |
| 200 | 60 | 164 | 430 | 353 | 150 | 280 | 8-18 | 295 | 8-22 | 295 | 12-22 |
| 250 | 68 | 206 | 499 | 353 | 150 | 335 | 12-18 | 350 | 12-22 | 355 | 12-26 |
| 300 | 78 | 230 | 570 | 380 | 150 | 395 | 12-22 | 400 | 12-22 | 410 | 12-26 |
