Non-Return Valves, LAT

A spring-loaded spherical ground joint acts as pressure valve, with tightness guaranteed by a buffer liquid of higher viscosity. The spring pressure is adjustable, but the valve can also be pre-set and lead-sealed to order. Maximum pressure 0,1 bar.
Use as a non-return valve under vacuum is possible. An inserted riser tube prevents contamination by buffer liquid.
Where aggressive media are involved, the spring can be covered with inert fluid.

Cone NS

Standard cock with boreOrder No.
14.5 / 233 mm13 20 40145
19 / 263 mm13 20 40219
29 / 323 mm13 20 40229
14.5 / 23without stopcock13 20 41145
19 / 26without stopcock13 20 41219
29 / 32without stopcock13 20 41229


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