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Pneumatic lined rubber butterfly valve
Pneumatic rubber lined butterfly valve (pneumatic rubber environmentally friendly anti-corrosion butterfly valve) refers to the vulcanization of rubbe
Product details
Overview of Pneumatic Rubber lined Butterfly Valve:
Pneumatic rubber lined butterfly valve (pneumatic rubber environmentally friendly anti-corrosion butterfly valve) refers to the vulcanization of rubber and the valve body in the butterfly valve through high temperature. It is generally divided into flange type and clamp type according to the connection method, and different sealing structures (fully lined rubber butterfly valve, semi lined rubber butterfly valve) with different performance can be selected according to the requirements of different working conditions to ensure the normal use of pneumatic rubber lined butterfly valve in different application places. Pneumatic rubber lined butterfly valves not only have the characteristics of corrosion resistance, wear resistance, non toxicity, and mold prevention, but also have excellent sealing performance. With the application of chemical anti-corrosion synthetic rubber in butterfly valves, the usage of rubber lined pneumatic butterfly valves has been continuously increasing.
Pneumatic clamp type rubber lined butterfly valve, pneumatic flange rubber lined butterfly valve
Application scope of pneumatic rubber lined butterfly valve:
Rubber lined pneumatic butterfly valves are suitable for the transportation of liquids and gases (including steam) in various types of industrial pipelines, as well as for the use of weakly corrosive fluid media,Perform two position control with a switch or adjust the flow rate of the medium.The working temperature generally does not exceed 180 ℃, and the nominal pressure is ≤ 1.6MPa. It is widely used in places such as food, medicine, chemical, petroleum, electricity, textile, paper, etc.
Performance characteristics of pneumatic rubber lined butterfly valve:
1. The use of adhesive free lining ensures complete isolation between the medium and metal, improving the reliability of the product.
2. The sealing surface has good wear resistance (rubber has seven times the wear resistance of copper).
3. Can be installed in any position, easy to maintain.
4. The seals can be replaced, and the sealing performance is reliable, achieving bi-directional sealing with zero leakage.
5. Rubber material has no toxicity and is antibacterial and mold resistant. The product price is one-third of that of stainless steel valves.
Technical parameters of pneumatic rubber lined butterfly valve:
| Nominal Diameter | DN50～DN1200(mm) |
| pressure rating | PN0.6、1.0、1.6MPa |
| Connection method | Clamp type and flange connection |
| Drive mode | Pneumatic control (air source drive, compressed air) |
| Temperature | Various types of rubber:- 20℃～150℃ |
| Leakage amount | Compliant with standards (up to zero leakage) |
| Sealing structure | Half lined rubber seal, fully lined rubber seal |
| workplace | Water, gas, oil, and weakly corrosive fluids (at room temperature and pressure) |
| control mode | Two position switch mode (gas on/off), regulating type (4-20mA analog signal control) |
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Standard specification for pneumatic rubber lined butterfly valve:
Design and Manufacturing Standards: GB/T 12238-2008
Structural length standard: GB/T 12221-2005
Connection flange standard: GB/T 9113
Pressure and temperature rating: GB/T 12224-2005
Test and inspection standards: GB/T 13927-2008
Pneumatic lined rubber butterfly valve parts material: |
 Pneumatic lined rubber butterfly valve (clamp type) Pneumatic lined rubber butterfly valve (flange type) |
Valve body: cast iron, ductile iron, carbon steel, stainless steel
Butterfly plate: cast iron, ductile iron, carbon steel, stainless steel completely coated with rubber or fluoroplastic
Valve stem: Carbon steel plated with nickel phosphorus, stainless steel
Valve seat sealing ring: natural rubber NR, chloroprene rubber CR, nitrile rubber NBR, EPDM, FKM fluororubber
Sealing ring operating temperature: Nitrile rubber X ≤ 80 degrees; Wear resistant rubber X6 ≤ 150 degrees; Chloroprene rubber ≤ 120 degrees; Fluororubber X7 ≤ 150 degrees;
| Nominal Diameter | DN（mm） | 50~1200 | ||
| nominal pressure | PN（MPa） | 0.6 | 1.0 | 1.6 |
| test pressure | strength test | 0.9 | 1.5 | 2.4 |
| Sealing test | 0.66 | 1.1 | 1.76 | |
| Airtight seal test | 0.6 | 0.6 | 0.6 | |
| Action form | Double acting (gas on/off), single acting (normally closed, normally open) | |||
| Optional Accessories | Positioner, solenoid valve, air filter pressure reducer, holding valve, travel switch, valve position transmitter, handwheel mechanism, etc | |||
Related products:Electric lined rubber butterfly valve Pneumatic fluorine lined butterfly valve Pneumatic soft seal butterfly valve
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