Contact Us

EPM, Inc.
112 W Burke St.
Stockbridge, GA 30281
800-659-5050
[email protected]

Phones and Fax Numbers

Call Free in the US: 800.659.5050
Local & International: 770.389.0501
Fax U.S: 888.353.7325
Fax Local & International: 770.389.0652
Home/Gaskets Build/Types of Gaskets/Spiral Wound Gaskets/Selection – Spiral Wound Gaskets
Selection – Spiral Wound Gaskets 2016-12-29T09:16:41+00:00

Selection

Flange Facings

 


Gaskets

Flange Facings

Raised Face

raised_face


Flat Face

falt_face


Male-Female Face

male_female_face


Tongue-and-Groove Face

groove_face

Basic Model

basic_model


X

X

[]

O
With Outer Ring

outer_ring


O

[]

X

X
With Inner Ring

inner_ring


X

X

O

[]
With Outer and Inner Rings

outer_inner_ring


O

[]

X

X

 

O : Suitable
[] : Suitable on condition
X : Unsuitable

 

Raised Face

In general, the raised face design is most commonly used. Mating face is flat but portion inside bolt holes are raised 1/16″ (1.6mm) or 1/4″ (6.4mm). Once assembled, the gaskets may be removed easily without springing the flange. Steel flanges that are to mate with cast iron should have flat faces to prevent breaking the cast iron flange during bolt tightening. Gaskets are unconfined.

Flat Face

Mating face of both flanges are flat. Ring type gaskets are commonly used on this facing, covering essentially the entire face both inside and outside the bolts. Gaskets are unconfined.

Male-Female Face

These facings are commonly used in the bonnet of valves, the cover of pressure vessels and tanks subject to high pressures. Depth of recessed face normally equal to, or less than, height of male or raised face to prevent possibility of flanges coming together metal-to-metal when gasket is compressed. Raised outside diameter not more than 1/16″ (1.6mm) larger than outside diameter of male face. Joints must be pried apart for disassembly. Gaskets are semi-confined.

Tongue-and-Groove Face

These facings are commonly used in the bonnet of valves, the cover of pressure vessels and tanks subject to high pressures. Depth of groove equal to, or less than, height of tongue. Groove normally not over 1/16″ (1.6mm) wider than tongue. Although this joint must be pried apart for disassembly, tongue-and-groove flange do produce a high gasket pressure. Gaskets are fully confined.