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Soft sealing telescopic flange butterfly valve
This product is suitable for narrow construction location, and is widely used in water supply and drainage, water treatment, power, shipbuilding, chemical industry, medicine and other industries to cut off fluid and regulate flow.
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Introduction
Product use
This product is suitable for narrow construction location, and is widely used in water supply and drainage, water treatment, power, shipbuilding, chemical industry, medicine and other industries to cut off fluid and regulate flow.
Product features
·The design is novel and reasonable, the structure is unique, the weight is light, the operation is convenient, and the opening and closing are fast.
·The flange expansion butterfly valve can not only adjust and intercept the flow, compensate the thermal expansion and cold contraction caused by the temperature difference of the pipeline, but also facilitate the installation, replacement and maintenance of the valve.
·A connection seat is set between the flange and the driving part of the valve, and the bolts for fixing the packing gland can be adjusted through the seasoning window on the connection seat to ensure the sealing of the shaft system.
·The sealing part can be adjusted and replaced, and the sealing performance is reliable.
standard specification
| Design Criteria | GB/T12238 |
| Structure length | GB/T12221 |
| Flange connection size | GB/T1724.6 |
| Inspection and test | GB/T13927 |
Model and transmission mode
| Manual SD342X/F | Worm gear/pipe network |
| Pneumatic SD642X/F | Switch/regulation/fast switching/explosion-proof |
| Electric SD942X/F | Switch/regulation/intelligent/explosion-proof |
Main parts and materials
| Valve body | QT450/WCB/304/316 |
| Valve plate | QT450/WCB/304/316 |
| Stem | 20Cr13 |
| Filler | Flexible graphite/PTFE |
| Valve seat | Overlay welding 309L |
| Seal ring | EPDM/F46 |
Keywords.
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Message
Main： Butterfly valves, blind valves, gate valves, globe valves, ball valves, check valves, regulating valves, gates, metallurgical valves, hydraulic dams
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