Manual Operation Wafer Type Centre Sealing Butterfly Valve
The wafer type center line butterfly valve has compact structure, easy 90 ° rotary switch, reliable sealing and long service life. The butterfly valve not only has simple structure, small volume, light weight, low material consumption, small installation size, small driving torque, simple and rapid operation, but also has good flow regulation function and closing sealing characteristics, In large and medium diameter butterfly valve is the dominant valve form. In recent ten years, metal sealed butterfly valves have developed rapidly. With the application of high temperature, low temperature, strong corrosion, strong erosion and high-strength alloy materials in butterfly valves, metal sealed butterfly valves have been widely used under working conditions such as high temperature, low temperature and strong erosion, and partially replaced stop valves, gate valves and ball valves. It is widely used in water supply and drainage of water plants, power plants, steel mills, papermaking, chemical industry, catering, building HVAC, air conditioning and other systems as regulation and cut-off.
Main Features:
1. The valve has good and reliable sealing performance.
2. The sealing material is nitrile oil resistant rubber, with long service life.
3. The rubber sealing ring is located on the valve body or on the butterfly plate. It can be applied to media with different characteristics for users to choose.
4. The butterfly plate adopts frame structure with high strength, large overflow area and small flow resistance.
5. The overall baking paint can effectively prevent corrosion, and can be used in different media as long as the sealing material of the sealing valve seat is replaced.
6. The valve has the function of two-way sealing. During installation, it is not controlled by the flow direction of medium or affected by the spatial position. It can be installed in any direction.
7. The valve has unique structure, flexible operation, labor saving and convenience.
Product Range:
Body material:Cast Iron,Ductile Iron
Nominal diameter:2"~48"(DN15~DN1200)
End Connection: Wafer,Lug,etc
Pressure range: Class150~600(PN16~PN100)
Working temperature: -10ºC~+120ºC
Operation : Handle, Gear, Electric actuator, etc
We welcome all the world customers to contact us for more cooperation.
With our years of technical knowledge and experience, we assure you,
Naibang will be one of your best parters in China.
STANDARD MATERIAL LIST |
| No. |
Parts Name |
Material |
| 1 |
Bottom Cover |
A182 F6, F304, F304L, F316, F316L |
| 2 |
Stud |
A193 B7, B7M, B8, B8M |
| 3 |
Gasket |
Graphite |
| 4 |
Body |
A216 WCB, A352 LCB, A351 CF8, CF8M, CF3, CF3M, Duplex |
| 5 |
Stem |
A182 F6, F304, F304L, F316, F316L |
| 6 |
Board |
A182 F6, F304, F304L, F316, F316L |
| 7 |
Disc |
A216 WCB, A352 LCB, A351 CF8, CF8M, CF3, CF3M, Duplex |
| 8 |
Pin |
A182 F6, F304, F304L, F316, F316L |
| 9 |
Stud |
A193 B7, B7M, B8, B8M |
| 10 |
Seal Ring |
SS304+Graphite |
| 11 |
Bushing |
SS304+PTFE |
| 12 |
Packing |
Graphite |
| 13 |
Yoke Nut |
A194 2H, 2HM, 8, 8M |
| 14 |
Yoke Stud |
A193 B7, B7M, B8, B8M |
| 15 |
Yoke |
A216 WCB, A352 LCB, A351 CF8, CF8M, CF3, CF3M, Duplex |
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