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NW Clamps

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. 
  • Replacement O-rings and Centering Rings
  • Wingnut and Bulkhead Clamps
  • Centering Rings with Screens
Nor-Cal Products manufactures a full line of flanges, fittings and adapters for vacuum applications. We offer NW (KF), ISO, CF, ASA, Wire Seal and Chain Clamp style flanges and fittings to fit almost every application. Custom flanges are available upon request. We specialize in manufacturing components from 304 or 316 stainless steel with several items available in aluminum as well. Centering rings, gaskets, clamps, bolts and other hardware components are available to complete your project. We maintain a large inventory for prompt deliveries and to meet those unexpected demands. 

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