What types of spring energized face seals does JST produce?

 Spring energized face seals are often used in static sealing applications. PTFE face seals offer advantages over traditional O-rings in terms of pressure handling, chemical compatibility, and operating temperature range. Often used in cryogenic applications. Face seals are designed for either internal or external pressure, but not both.

Product Type

Product Description

Technical Data

Working

temp

Pressure

Speed

FHB

1. The end face seal design of helical spring combined with arc lip, with pressure coming from the inside direction.

2. With high spring load, it is the best choice for low temperature, gas and low pressure static flange sealing applications.

3. Application: valves, compressor cylinders, cryogenic equipment, rotary joints, etc.

-110℃

~260℃

Standard type 20MPa

extended or blocked

country type 40MPa

-

FVB

1. The end face sealing design of the V shaped spring combination inclined lip, with pressure coming from the inside direction.

2. It has medium load and low load V shaped springs to meet dynamic applications.

3. Application: valves, compressor cylinders, rotary joints, laser heads.

-60℃

~260℃

Standard type 20MPa

extended or blocked

country type 40MPa

-

FHC

1. The end face seal design of helical spring combined with arc lip, with pressure coming from the outside direction.

2. With high spring load, it is the best choice for low temperature, gas and low pressure static flange sealing applications.

3. Application: vacuum applications, compressor cylinders, rotary joints, and mechanical seals.

-110℃

~260℃

Standard type 20MPa

extended or blocked

country type 40MPa

-

FVC

1 The end face sealing design of the V shaped spring combination inclined lip, with pressure coming from the outside direction.

2. It has medium load and low load V shaped springs to meet dynamic applications.

3. Application: valves, compressor cylinders, rotary joints, laser heads.

-60℃

~260℃

Standard type 20MPa

extended or blocked

country type 40MPa

-

Product Selection

Spring energized face seals

Face seal (inner compression) Groove Selection


Face seal (outer compression) Groove Selection

★For diameter above 700mm, Lmin=10.8mm

★★For diameter above 700mm, Lmin=17.8mm

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