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86-311-68036528 |
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gear operation butterfly valve PN25 |
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gear operation butterfly valve PN25 |
1. Quick opening and closing convenience, labor saving and low fluid resistance, which can be operated frequently. |
2. Simple structure, small size and light weight. |
3. The mud can be transported, with the least amount of liquid stored at the pipe opening. |
4. Good sealing can be achieved under low pressure. |
5. Good regulating performance. |
Double eccentric double flange design butterfly valve |
· the easily replaceable EPDM rubber sealing ring is installed in the side groove of valve plate |
· hand wheel, electric, hydraulic actuator or pneumatic actuator with self-locking worm and worm gear box |
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Butterfly valves can be divided into offset plate type, vertical plate type, inclined plate type and lever type.According to the seal form can be divided into two seal type and hard seal type.Soft seal type generally USES the rubber ring seal, hard seal type usually USES the metal ring seal.According to the connection type, it can be divided into flange connection and clamp connection.According to the transmission mode can be divided into manual, gear transmission, pneumatic, hydraulic and electric several. |
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Materials and protection
· body and disc materials: ductile iron, other materials as required
· stem material: stainless steel
· seat material: surfacing stainless steel
· epoxy resin coating is applied on the inner and outer surface of the valve body and the outer surface of the valve plate; epoxy resin coating is applied under DN1200 with enhanced single component; multi-component composite epoxy resin coating is applied for caliber of DN1400 and above
· ceramic coating is applied to valve body and valve plate |
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