D71X/J/F manual wafer type soft sealing butterfly valve|Zhengzhou butterfly valve|Zhengzhou wafer type soft sealing butterfly valve
Model: D71X/J/F
Caliber: DN50-150
Pressure: 0.6MPa-1.6
Material: Â Cast iron, cast steel, carbon steel, stainless steel, 304 , 316
Manual wafer type soft seal butterfly valve
D71X/J/F manual wafer type soft sealing butterfly valve This product is composed of rubber sealing butterfly valve and carbon steel or stainless steel valve plate and valve stem. It is suitable for regulating the flow rate and intercepting medium on the water supply and drainage and gas pipelines such as food , medicine, chemical, petroleum, electric power, textile, papermaking, etc. at temperatures ≤80 ～ 120 °C . Its main features are : novel design, reasonable, unique structure, light weight, and quick opening and closing. The operating torque is small, the operation is convenient, and the labor is dexterous. It can be installed in any position and is easy to maintain. The seal can be replaced and the sealing performance is reliable to achieve zero leakage in the two-way seal. The sealing material is resistant to aging, weak corrosion and long service life.
Design standard: GB/T2238-1989
Flange connection size : GB/T9113.1-2000; GB/T9115.1-2000; JB78
Structure length : GB/T12221-1989
Pressure test : GB/T13927-1992; JB/T9092-1999
D71X/J/F-
Nominal diameter DN ( mm ) 50 ~ 150
Nominal pressure PN ( MPa ) 0.6 1.0 1.6
test pressure  Strength test 0.9 1.5 2.4
Seal test 0.66 1.1 1.76
Gas seal test 0.6 0.6 0.6
Applicable medium  Air, water, sewage, steam, gas, oil, etc.
Drive form  Manual, worm and worm gear drive, gas drive, electric drive.
The main parts
Part Name  material
Valve body  Ductile iron, cast steel, alloy steel, stainless steel
Butterfly board  Cast steel, stainless steel and special materials
Seal ring  Various rubber, polytetrafluoroethylene
Stem 2Cr13 , stainless steel
Filler O -ring, flexible graphite O
Butterfly valve sealing material selection and applicable temperature
Material variety  Neoprene  Ding Qing rubber  Ethylene propylene rubber  PTFE  Silicone Rubber  fluororubber  natural rubber  nylon
English abbreviation CR NBR EPDM PTFE SI VITON NR PA
Model code X or J XA or JA XB or JB F or XC , JC XD or JD XE or JE X1 N
Zui high temperature 82 °C 93 °C 150 °C 232 °C 250 °C 204 °C 85 °C 93 °C
Resistance to Zui low temperature -40 °C -40 °C -40 °C -268 °C -70 °C -23 °C -20 °C -73 °C
Applicable working temperature 0~+80 °C -20~+82 °C -40~+125 °C -30~+150 °C -70~+150 °C -23~+150 °C -20~+85 °C -30~+93 °C
D71X/J-6/10/16Z Q C P R series manual wafer type butterfly valve connection size
Nominal diameter  Structure length ( standard value ) Dimensions ( reference value ) Connection size ( standard value )
0.6MPa 1.0MPa 1.6MPa
Millimeter  Inches L H H0 A B D0 nd D0 nd D0 nd
50 2 43 63 235 270 65 110 4-14 125 4-18 125 4-18
65 21/2 46 70 250 270 65 130 4-14 145 4-18 145 4-18
80 3 46 83 275 270 65 150 4-18 160 8-18 160 8-18
100 4 52 105 316 270 65 170 4-18 180 8-18 180 8-18
125 5 56 115 340 310 65 200 8-18 210 8-18 210 8-18
150 6 56 137 376 310 65 225 8-18 240 8-22 240 8-22
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Zui big valve wholesale base in South China
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