Product
Bellows Sealed Globe Valve
Specification
Size Range: DN15-DN400
Pressure: PN16/25/40/64
Body Materials: WCB/CF8/CF8M
Disc Materials: A105+13Cr/CF8
Stem Materials: 2Cr13/304
Face to face dimension: DIN3202
Flanged ends: DIN2543-2545
Test & inspection: DIN3230
Working temperature：-29℃～425℃
Suitable medium：Water,Oil,Gas etc.
Application ：Municipal construction, Power, Medicine, Petroleum industry
Main Parts Material:
Body | Bonnet | Stem | Disc | Seat | Paking |
WCB | WCB | 13Cr | 2Cr13 | 2Cr13 | Flexible graphite |
STL | |||||
CF8 | CF8 | 304 | 304 | 304 | Flexible graphite |
STL | PTFE | ||||
CF8M | CF8M | 316 | 316 | 316 | Flexible graphite |
STL | PTFE | ||||
CF3 | CF3 | 316 | 304L | 304L | Flexible graphite |
STL | PTFE | ||||
CF3M | CF3M | 316 | 316L | 316L | Flexible graphite |
STL | PTFE |
Features :
- Bellows sealed globe valve is simple in structure and good in performance.
- The stem nut adopts surface nitriding to improve the surface hardness .
- The medium flange bolt is made of high-strength alloy steel, with the ability to resist high temperatures.
- Double sealing of packing and bellows to achieve zero leakage.
- The bellows is designed in the inner cavity of the valve cover, which avoids direct flushing with the medium and improves the service life of the bellows.
- The bellows adopts 2~4 times overlap to prevent the valve leakage due to the damage of the single layer of the bellows, and prolong the service life of the valve.