NW-50-CRC-SV NW Over-Pressure Centering Rings
NW flanges utilize an aluminum clamp with a single wingnut fastener allowing frequent disassembly without tools. The vacuum seal is effected by uniform application of pressure by the clamp on the 15° surface of the 304 stainless steel flanges. The mating flange surfaces compress a FKM O-Ring held in place by a centering ring. Nor-Cal Products offers aluminum and stainless steel centering rings for NW flanges with Buna, silicone and FKM O-rings.
Nor-Cal Products manufactures a complete line of NW vacuum fittings. The tube portions are fabricated from 304 stainless steel. 316L stainless steel can be supplied on request. Nor-Cal Products makes its own elbows, and all tees and crosses are made with the pulled-port technique. This allows smooth, crevice-free butt welds to provide the maximum in cleanliness for UHV applications. Bakeout range is up to 200°C.