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E-mail
173450841@qq.com
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Phone
13939004977,15981989128
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Address
148-A Minggong Road, Erqi District, Zhengzhou City, Henan Province
Zhengzhou Senma Self Control Valve Co., Ltd
173450841@qq.com
13939004977,15981989128
148-A Minggong Road, Erqi District, Zhengzhou City, Henan Province
The electric double eccentric flange butterfly valve produced by Semir Company has a compact structure, easy 90 ° rotary switch, reliable sealing, and long service life. It is widely used in water treatment plants, power plants, steel mills, papermaking, chemical, catering and other systems for water supply and discharge, as well as for regulating and shut-off purposes.
1. This valve adopts a double eccentric structure, which has a sealing function that becomes tighter as it is closed, and the sealing performance is reliable.
2. The sealing auxiliary material is paired with stainless steel and nitrile oil resistant rubber, which has a long service life.
3. The rubber sealing ring can be located on the valve body or on the butterfly plate, and can be suitable for different characteristics of media for users to choose from.
4. The butterfly plate adopts a frame structure, with high strength, large overcurrent area, and low flow resistance.
5. The overall baking paint can effectively prevent rust and can be used in different media as long as the sealing material of the valve seat is replaced.
6. This valve has a bidirectional sealing function and is not controlled by the flow direction of the medium or the spatial position during installation. It can be installed in any direction.
7. This valve structure is flexible, labor-saving, and convenient to operate.
Nominal meridian DN (mm) |
50~2000 |
50~1600 |
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Nominal Pharmacological PN (MPa) |
0.6 |
1.0 |
1.6 |
Sealing test (MPa) |
0.66 |
1.1 |
1.76 |
Strength test (MPa) |
0.9 |
1.5 |
2.4 |
Applicable Temperature |
Nitrile rubber: -40 ℃~90 ℃ Fluorine rubber: -20 ℃~200 ℃ |
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Applicable Medium |
Water, air, natural gas, oil products, and weakly corrosive fluids |
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leakage rate |
Compliant with GB/T13927-92 standard |
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Drive Type |
Worm gear transmission, electric, pneumatic, hydraulic |
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Part Name |
material |
valve body |
WCB、QT450-10、HT200、HT250 |
Butterfly board |
WCB、QT450-10、HT200、HT250 |
valve shaft |
2Cr13 |
sealing ring |
Nitrile oil resistant rubber |
filler |
flexible graphite |
Manufacturing Standard |
GB/T122387-89 |
Flange standard |
GB9113-2000、GB17241.6-1998 |
Structural length standard |
GB12221-89 |
Inspection Standard |
GB/T13927-92 |


