In industrial production, the leakage occurring during the fluid transportation process causes a great deal of losses and even damages, laying a hidden danger for safety production.

Leakage 1.

■ Flange preload force loss factors: elastic interaction, temperature change, pressure fluctuation, mechanical vibration

■ Preload loss factors of valve: Temperature change, pressure fluctuation, aging of packing, mechanical vibration

Leakage 2.

■ Preload is too large

■ Excessive strength of flange fasteners: Causes excessive pressure and exceeds the strength limit of gasket material

■ Valve packing pre-tightening force: Causes pressure to exceed the elastic limit of the packing or cause the valve to lock

application

■ Application of WDF901H in flange cover of heat exchanger

Case: Reforming the heat exchanger, temperature 500 degrees Celsius, pressure 19 Bar, medium: gasoline, H2

■ Application of WDF901N on the furnace flange

Case: Acting Inlet Flange Temperature 580°C - 650°C, Pressure: 2.5 Bar, Medium: Flue Gas Mixture

Please consult our sales or technical staff for details.

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