Feature:
The valve system to absorb,digest foreign technology,using three-dimensional eccentric multi-level meatl seal structure ,applicable to medium temperature=550°c metallurgy,electric power,petrochemical,as well as to the drainage pipe for regulating fluid and cut off the best device.
Feature:
1,Butterfly plate seal for the hard and soft layering pieces of metal with a metal aeal and flexble seal the dual advantage of both low and high temperature cases,both with excellent sealing performance
2,Using three-dimensional eccentric structure,valve seat and butterfly olate almost no friction,with the more closed more tight sealing function.
3,Valve sealing surface,using welding stainless steel,sbalt-based alloy,sealing surface wear resistance and long service life.
Technical specification:
| Structral formation | Single eccentric structure | |
| Design reference | GB | API |
| Driving manner | lever,Gear,Pneumatic,Electric | |
| Face to face | GB/T12221 | ASME B16.5,API609 |
| Design standard | GB/T12238 | API609,ASME.SP-68 |
| Flanged ends | JB/T79,JB/T82 | ASME B16.5 |
| Test&inspection | JB/T9092 | API598 |
Main performance Specifications
| Nominal DN | DN(mm) | 50-2000 | 50-500 | |||
| Nominal pressure | PN(MPA) | 0.6 | 1.0 | 1.6 | 2.5 | 4.0 |
| Test pressure | Strength test | 0.9 | 1.5 | 2.4 | 3.75 | 6.0 |
| Seal test | 0.66 | 1.1 | 1.76 | 2.75 | 4.4 | |
| Gas seal test | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | |
| Leakage | <0.1*DNmm3/s(in line with GB/T13927-92 standard | |||||
| Suitable temperature | Stainless steel,chrome molybdenum steel:-40°c-550°c | |||||
| Applicable medium | Air,water,stem,gas,oil | |||||
| Drive type | Worm worn transmission,electric transmission | |||||
