Wester Forge


Choose from an assortment of quality flanges to meet your specific needs.

Check our Materials and Applicable Specifications Chart for additional information.

Welding Neck Flanges

  • Preferred for high-pressure, subzero or elevated temperatures
  • Hub is tapered and bored to match pipe’s inside diameter so flow is not restricted, preventing turbulence and reducing erosion
  • Easily radiographed
  • Provides excellent stress distribution
Slip-On Flanges
  • Not normally used in high-stress applications due to low hub and weld attachment
  • Slips over outside of pipe
  • Inside of flange welded at hub and end of pipe
Lap Joint Flanges
  • Used where bolt alignment or access for cleaning is required
  • Similar to slip-on flange when used with lap joint stub end
  • Radius at intersection of flange face and bore to match lap joint stub end
Threaded Flanges
  • Used where welding would be hazardous
  • Designed for low-pressure and non-cyclic applications
  • Bore is threaded to match pipe thread
  • Tapered to seal pipe and flange
Socket Welding Flanges
  • For small-diameter chemical processes, hydraulic and stream distribution lines
  • Similar to slip-on flange
  • Counter bore matches pipe bore, allowing unrestricted flow
  • Counter bore from hub side fits pipe’s outer diameter – can insert pipe in socket with fillet weld at hub
Blind Flanges
  • Used to close ends of piping
  • Has no bore
  • Permits access to sealed lines
Other Flanges

  • Orifice
  • Expander
  • Reducing
  • Lightweight
  • Studding Outlets
  • Long Weld Necks
  • Metric
  • Navy Drawings
  • Customer Drawings

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western forge(800) 352-6433
western forge(281) 727-7060

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