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PL Flange

PL Flange

Size: 1/2”~96”

Pressure Rating: PN10-PN100,150LB-600LB,10K-20K

Material: Q235, SS304,SS316, SS304L, SS316L

Design Standard: ANSI/ASME B16.5, BS4505, DIN2576,DIN2632,EN1092, JIS/KS

Application medium: For Water, Oil and Gas Industrial

Application Temperature: 0-500℃

Applied projects: Pipe connection

Pipe fittings as the mandatory accessories in pipeline, WESDOM also could provide wide range of standard and materials to match your pipes and valves. One stop service, save your time, save your Slip-on pipe flange generally slide on the pipe. Socket-type pipe flanges are usually made with the inner diameter of the pipe flange slightly larger than the outer diameter of the pipe. This allows the sliding flange to slide over the pipe.


Product details

A flat flange is a device used to create connections for pipelines. There are many different sizes of flat flange designs that are used on different diameters of pipe. A flat flange can be manufactured from several types of steel, from mild steel to stainless steel. They have a common connection method of welding that is used to attach a flange to a length of pipe. The material that the flange is manufactured from is dependent on the type of pipe to which it is being attached.

Plate Flange(PL flange):

A plate flange  is a flat, circular disk that is welded onto the end of a steel pipe and allows it to be bolted to another pipe. Typically used in fuel and water pipelines, the two flange plates will be bolted together with a gasket in between them. The flange plate will have bolt holes all around the perimeter and will be used to create junctions,tees and joints.

Plain Flange(Plate Flange) Definition:

Plain flange(plate flange) is also called flat flange,plate slip on flange or a ring flange.It looks like a flat circular disk with inner bore and bolt holes on it.It is one kind of the slip on flange.

The Joint Between Plate Flange and Pipe: 

The plate flange slip over the pipe and the inner hole of plate flange is a little bigger than the pipe outer diameter.Plate flanges are secured to the pipe with a fillet weld at the bottom and the top of flanges with the pipes.The welding method is fillet weld,so the plate flange is not suitable for a high pressure application.

The sealing face of a Plate Flange:

Though the plate flange means the flange is like a flat plate,it could be raised face(RF) sealing face,commonly the plate flange could be RF or FF face,the raised face plain flange is much popular in regular industry systems.


Brand Name
Product name
ASME B16.5 cl 150 Stainless Steel Stub End Flange rf Lap Joint Flange
Flange Type
Lap Joint Flange
Stainless Steel 304/316/304L/316L


Stainless Steel Flanges Series
Overview Quick Details
Product name: Stainless Steel Seamless/Welded Reducer
Model Number: Welding Neck Flange Technics: Forged/Casting
Connection: Welded Type: PL,WN,SO,BL,FF,RF..
Standard: ASTM A312,ANSI B16.9,EN ,DIN ,GOST ,JIS….
Size: 1/2″-36″  DN15-DN900 Surface: Rust-proof oil, Galvanized
Pressure: PN6-PN250/CL150-CL1500 Special Design: Produce according to your drawings required
Application: Petroleum, gas, chemical,metallurgy, construction Package: Plywood cases or Pallets
Product Description
Product name: Stainless Steel SS304 SS316 Butt Weld Welding Neck Pipe Flange
Size: From 1/2″ to 36″  DN15-DN900
Pressure: PN6-PN250/CL150-CL1500
Standard: ASTM A312,ANSI B16.9,EN ,GB, DIN ,GOST ,JIS304/304L,316/316L,904L TP321,TP317/317H…
Surface: Rust-proof oil, Galvanized
Application: Petroleum, gas, chemical,metallurgy, construction
Package: shrink wrapped-carton-pallet or in seaworthy wooden cased,or as request
Remark: Special design is available as customers’ requirement


Flange Dimensions:

As with pipes, it was necessary to standardise the dimensions of the various flange types depending upon requirements i.e. the service conditions they are likely to encounter. Standardisation also facilitates easier communication between relevant parties (designer, manufacturer etc.), with a reduced likelihood of error.

PL flange

Project case

Pakistan Cardboard Factory

Main products:

DIN SS316 seamless pipes, DIN SS316 fittings, DIN SS316 flanges, SS knife gate valves, SS316 ball valves

Project description:

This customer is the owner of a cardboard factory in Pakistan. The factory needs a lot of pipe fittings and valves. He also compared more than a dozen valve companies online, and then was deeply moved by the professional expression and enthusiasm of the business personnel of the WESDOM international department in final. And they choose to cooperate with WESDOM. Although it is the first time to cooperate with each other, but the final customer also gave us a high evaluation, WESDOM is very good!

Project pictures:


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Product packaging and transportation



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