Flange connection components


310 - Flange connections ISO-KF

Series 310 comprises a selection of connection parts (ISO-KF) made of aluminum or stainless steel. These are clamps, claws, centering rings, blank-off flanges, weld neck flanges, metal seals (indium, 60°C)


311 - Soft Start Valve

Soft-start valves consist of two halves of throttle flaps supported on a common axis and maintained in the open position by a spring. The axis is held in an ISO-KF centering ring that is formed as a body with valve seat. When mounting them between two ISO-KF flanges (instead of a centering ring), the open flaps must be orientated against the air flow in the vacuum line. When the roughing system goes into operation, a strong air flow occurs in the roughing line, which immediately closes the valve and reduces the pipe section by about 99%. When reaching a differental pressure of approx. 15 mbar, the valve opens and leaves the pipe sectionnearly unobstructed for further pumping.


320 - Flange connections ISO-K, ISO-F

Series 320 comprises a selection of connection parts (ISO-K, ISO-F) made of aluminum or stainless steel. These are clamps, claws, bolts, centering rings, rotatable flanges, blank-off flanges, weld neck flanges.


330 - Flange connections CF

Series 330 comprises a selection of connection parts (CF). These are bolts, stud bolts, copper seals, blank-off flanges, weld flanges, fixed weld neck flanges , rotatable weld neck flanges .


350 - VATSEAL

VATSEALs are a metal seals for vacuum and cryogenic applications. Metal seals are used instead of elastomer seals if - permeation through an elastomer seal is not acceptable, - outgassing must be very low, - temperature exceeds 200°C, - process gases are not compatible with elastomer seals, - high radiation resistance is required.


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