Profile: Li Ming Flanges Co., Ltd. is a supplier of pipe flanges in carbon, stainless, alloy & chrome steel. We also specialize in designing and manufacturing special ring flanges & other forgings as per drawing or customers' special requirements.

Welding Neck Flange
Our Welding Neck Flange is normally referred to as the "high hub" Flange. It is designed to transfer stresses to the pipe, thereby reducing high stress concentrations at the base of the Flange. The welding neck flange is the best designed butt-welded flange of those currently available because of its inherent structural value. It is expensive because of the design.

Slip On Flanges
The Slip-On Flange has a low hub because the pipe slips into the flange prior to welding. It is welded both inside and out to deliver sufficient strength & prevent leakage. Slip-on flanges are all bored slightly larger that the O.D. of the matching pipe.

Lap joint Flanges
The lap joint flange is practically identical to a slip-on flange except it has a radius at the intersection of the bore and flange race. This radius is necessary to have the flange accommodate a lap joint stub end. Normally, a lap joint flange and a lap joint stub end are mated together in an assembly system.

Socket Weld Flange
The socket welding flange is similar to a slip-on flange except it has a bore and a counter bore dimension. The counter bore is slightly lager than the O.D. of the matching pipe, allowing the pipe to be inserted into the flange similar to a slip-on flange.