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LN81W series bellows regulating valve
LN81W series bellows regulating valve LN81W series bellows single seat control valve, based on the LN81 series control valve single seat non pressure
Product details
LN81W series bellows regulating valve
The LN81W series bellows single seat control valve is based on the LN81 series control valve single seat non pressure balance structure, and adds a bellows sealing structure. The pressure resistant elastic stainless steel bellows is placed inside the support component and connected to the valve stem, forming a double seal with the packing to eliminate the hidden danger of medium leakage. Suitable for regulating highly toxic, flammable, explosive, volatile, and rare precious metal media with small pressure differentials.
Main Features
performance metrics
| Main models | Double sealing eliminates the leakage hazards of highly toxic, flammable, explosive, volatile, and rare precious metal media. |
| Nominal Diameter | DN15 ~ DN300 |
| Nominal Pressure | PN16/25/40/63/100; CL150(PN20)/300(PN50)/600(PN110) |
| Operating temperature | -46℃~ 350℃ |
| flow characteristics | Equal percentage, linear, fast opening |
| Adjustable ratio | 30:1, 50:1, 100:1 |
| leakage level | ANSI B16.104 Class IV, V, VI |
| Valve body material | WCB/WCC/LCB/LCC; WC6/WC9; CF8/CF8M; 4A/5A等 |
| Material of valve internals | 630/316/316+ST/316 nitriding/316+Ni60/316+WC, etc |
| filler | PTFE+graphite V-shaped packing, flexible graphite annular packing, graphite+PTFE braided packing, etc |
| LN8100W | Top guided single seat control valve (bellows) |
| LN8110W | Porous single seat control valve (bellows) |
| LN8120W | Quick opening single seat control valve (bellows) |
| LN8130W | Soft sealed single seat control valve (bellows) |
| LN8140W | Porous soft seal single seat control valve (bellows) |
| LN8150W | Double layer sleeve single seat control valve (bellows) |
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