Flanges

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