ASTM 316L Stainless Steel Slip On Flanges,Class 150 lb

The features of slip on flanges: Slip-on flanges not only save space and reduce weight, but what is most important is to ensure no leak in the joint and has a good sealing performance.The reason why the compact flange size is decreased is as a result of reducing the diameter of sealing,which will minish the corss section of the sealing surface. Secondly, the flange gasket has been replaced by the sealing ring to ensure that the sealing surfaces are matched. Then, flange gaskets have been replaced by the sealing ring so as to ensure sealing surface matching with another sealing surface. In this way,to compact the sealing face only requires very little pressure. With the necessary pressure reduced, the sizes and the quantities required of the bolts are reduced accordingly. Therefore, a new product with a small size and light weight (lighten 70% ~ 80% weight over that of traditional flanges) are finally designed. For this reason, Slip on flanges are a kind of more excellent flange products that lighten weight and reduce space, and play an important role in the industry.

Sealing principle of slip on flanges: Two sealing faces on the bolts squeeze the flange gasket each other and form seal, But at the same time,it also leads to damage the seal. In order to keep it tight, a huge acting force of the bolts must be kept. So the bolts need to be made a bigger while a bigger bolt needs to match with a bigger nut,which means that larger diameter bolts are needed to creat conditions for tightening the nuts. However, if the diameter of bolts is bigger, the appropriate flange would bend. The only way is to increase wall thickness of the flange.The entire device will need a greater size and weight, which becomes a special problem in the coastal environmen in that the weight,under the circumstances, is always the main issue that people must pay much attention to.And generally speaking,slip on flanges are an invalid seal, as needs 50% bolt load for squeezing

the gasket, and only 50% load was left for keep-up pressure.

The other specifications for slip on flanges:

Size: 1/2" NB To 24" NB.
Class: 150#, 300#, 600#, 900#, 1500# & 2500#
Stainless Steel: ASTM304H/316/316L/317/317L /321/310/347/904L etc.
Carbon Steel: ASTM A105/A694/A350 LF3/A350 LF2 etc.
Alloy Steel: ASTM A182F1/F91 etc.
Type:Slip-on

Applications: power plant, petrochemical and heavy engineering industries