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Bell-shaped float-type,Bimetalic Heating-static-force Steam Trap Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
980
981/981－3
BNF1/2
Main features
Bell-shaped float-type,bimetalic heating-static-force steam trap valve can completely eliminate condensed water after the pipeline stops running, with excellent performances of antifreeze,water-attack-resisitance, dirt-resistance,and sewage disposal.
Dimensions & constructral diagram
Bell-shaped float-type,bimetalic heating-static-force steam trap valve constructral diagram(pic1)
Bell-shaped float-type,bimetalic heating-static-force steam trap valve constructral diagram(pic2)
Flow rate chart
Working pressure difference Mpa
Material table of main parts
| Name of Parts | Material |
| Body | Carbon Steel |
| bonnet | Carbon Steel |
| Valve Seat | Stainles Steel |
| Disc | Stainles Steel |
| sealing steel ball | Stainles Steel |
| Bimetal | Stainless Steel Metal |
| Spring | Stainless Steel |
| Percolator | Stainless Steel |
Chief Performance and Specification
| Type | BNF1 | BNF2 |
| (Mpa) Working Pressure | 0.01-0.3 | 0.3-0.8 |
| (℃) Working Temperature | 220 | 220 |
| Max.Displacement（㎏/h） | 2100 | 500-3000 |
| Working Medium | Steam,Condensed Water | |
Main External and Connecting Dimensions
| Type | BNF1 | BNF2 | |||||
| Type Of Connetion | ZG1/2″ | ZG3/4″ | ZG1″ | ZG3/4″ | ZG1/2″ | ZG1″ | |
| DN (mm) | 15 | 20 | 25 | 15 | 20 | 25 | |
| （mm） External Dimensions | L | 100 | 105 | 100 | 105 | 105 | 105 |
| W | 63 | 63 | 63 | 63 | 63 | 63 | |
| Weight（㎏） | 0.8 | 0.9 | 0.9 | 0.8 | 0.9 | 0.9 | |
Main External Dimensions
| Type | 981-3 | 981 | 980 |
| Connecting Dimensions mm | 15.20.25 | 15.20.25 | 15.20.25 |
| Amm | 100 | 100 | 100 |
| Bmm | 190 | 190 | 190 |
| Cmm | 127 | 127 | 127 |
| Dmm | 100 | 100 | 100 |
| Bolt quantity | 6 | 6 | 6 |
| Mpa Max. Permitting Pressure and Temperature | 1.7Mpa 232c | 1.7Mpa 232c | 1.7Mpa 232c |
| Mpa Max Working Pressure | 1.7 | 1.7 | 1.7 |
