Slip On Flange

Slip On Flange Definition:

Slip on flange,as the meaning of name,is a flange slipping on the pipe or fitting when connection.The pipe should be insert the flange inner bore,and leave a bit distance from the face of the flange to make sure it will not effect the sealing of two flanges.

The inner bore of the slip on flange is a little larger than the pipe OD,to make sure the pipe or fitting end can slip into the flange.The slip on flange is fillet welded with the pipe or fitting,different with the butt welding method of weld neck flange, and the pipe no need to do the bevel end,just square end is ok for welding,this is also different.Commonly,the slip on flange can be fillet welded with the pipe on the two sides.It can make sure the joint quality with the pipe.

The Welding of A Slip On Flange:

When welding a slip on flange to a pipe,the welder should make some temporary tack weld to fasten the alignment between the pipe and flange,then the welder carry out the fillet weld around the end of pipe to the inside of the slip on flange,and another fillet weld also should be done around the back end of the flange and the outside of pipe.The two fillet welding can make sure the quality for the joint between pipe and flange.Of course,it will also increase the welding cost.So our engineer from Hebei Haihao Group suggest that you also should consider this cost when choose the flange type for a piping system designing. 

Category of Slip On Flange:

The slip on flange could be divided several different types,slip on plate flange,slip on hub flange,socket-weld slip on flange etc.The slip on plate flange is just like a ring with bolt holes,the slip on hub flange is like a plate flange with a neck or hub,the cost is higher than the slip on plate flange,but it can supply a better joint quality and reinforcement.The socket weld slip on flange is also call socket weld flange,this kind of flange just need one fillet welding to connect the pipe.

Sealing Face of Slip On Flange:

The slip on flange is commonly supplied with the flat face (FF),raised face(RF),they are not used widely in high pressure conditions.In different standard for slip on flange,the dimensions of the flange and sealing face have a different technical data,it is necessary to confirm all the details to make sure the flange can match the joint with the pipe and another flange. Hebei Haihao Flange Factory has more than 30 years experience in slip on flange manufacturing.Welcome to contact us when you have any need about all kinds of slip on flange.

The biggest advantage of slip on flange is the low cost,that is why slip on flange is widely used in industry fields.Hebei Haihao Flange Factory can supply all kinds of slip on flange for your need,welcome to contact us.