Oil and gas seal
Products
Home Products

API 6D Ball Valve & LNG Seal

-50℃~180℃

PTFE spring energized seals for cryogenic applications

PTFE spring energized seals for cryogenic applications

The FHB seal is made of a helical wound spring and a polymer jacket, which is mainly used as a Flange internal face seal.

  • Brand:

    JST Seals
  • Item NO.:

    FHB
  • Payment:

    T/T
  • Product Origin:

    China
  • Shipping Port:

    Guangzhou
  • Order(MOQ):

    50
  • Product Detail

PTFE spring energized seals for cryogenic applications


The FHB seal is made of a helical wound spring and a polymer jacket, which is mainly used as a Flange internal face seal.


In the cryogenic system, due to the serious impact of the relatively severe working environment such as deep low temperature, high vacuum and high pressure, the work difficulty in the design, production, operation and maintenance of the device is greatly increased. Therefore, the sealing effect of the sealing structure is a very important performance index in the cryogenic system. Many cryogenic systems are related to cryogenic liquids. In order to effectively avoid liquid leakage, it is necessary to select a sealing structure suitable for cryogenic environments.


A helical wound spring is most commonly used in static face seal applications and low temperature fields that require high loads. The rotary seal with inclined coil is superior to O-ring in terms of friction, consistency and wear life.


Gaskets are generally used in the form of gaskets for both the flange sealing of valves and the external connection of flange connected valves.


When the gasket seal reaches the designed working low temperature from normal temperature, selecting appropriate gasket materials and increasing the tensile deformation of bolts can ensure that the sealing gasket still has some pre tightening force at the working temperature to maintain the sealing capacity.



Advantages:

1. Radial seal for static and dynamic duties; suitable as rod or piston seal.

2. Medium to high spring load for positive sealing, but with some friction.

3. Suitable for service with medium to high system pressure.


Working Conditions
Material
Temperature range
Pressure
Medium
Sealing ring: Teflon+carbon fiber
Spring: 316SS
-50~180℃
≤80Mpa LNG, Low temperature ethylene


FHB For valve end face

Groove DWG:

Temperature Rating

JST Series

Spring

0~900(LBS)

900~2500(LBS)

G=(OD-ID)/2

Standard CS:G=(OD-ID)/2

L Value

(-50℃~180℃)

FHB

Elgiloy

3.1

4.8

4.7

7.1

6.1

9.5

6.9

10

Send A Message

If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

Related Products
API 6D ball valve seal
Bidirectional high-pressure ball valve seat seal

Bidirectional high-pressure ball valve seat seal is a type of seat sealing that can withstand bidirectional pressure, with good low-temperature performance and airtightness, and is widely used in 6D ball valves.

lip seal design for ball valves
Spring energized ball valve seal

JST FHR series is  made of a helical wound spring and a polymer jacket, which is mainly used for rod.

Ball valve high pressure lip seals
API 6D ball valve piston seal

JST FHP series is  made of a helical wound spring and a polymer jacket, which is mainly used for piston.

LNG cryogenic valve seals
Ball valve seat seals for Cryogenic Valve and LNG Application

The BVR series is made of a canted level spring and a polymer jacket, which is mainly used as a seat seal.

swivel joint plug types
High pressure swivel joint ball plug

Swivel joint ball plug is working together with hammer union seals, to seal the balls of high pressure elbows and grease.

Spring energized Outer Face Seal
PEEK OFS OD face seal

OD Face Seal are 100% compatible with Cameron Type FLS and FLS-R Gate Valves, It is spring-loaded and pressure-energized to improve gate and seat service life.

ptfe rotary seals
Hydraulic PTFE rotary seals

High pressure Rotary Seals is one bidirectional rotary seal which can bear both sides of pressure and alternating pressure.

Ball valve high pressure lip seals
API 6D ball valve piston seal

JST FHP series is  made of a helical wound spring and a polymer jacket, which is mainly used for piston.

© Copyright: 2024 Guangzhou JST Seals Technology Co., Ltd. All Rights Reserved.

粤ICP备12032262号 IPv6 network supported

IPv6 network supported

top

Send A Message

Send A Message

    If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

  • #
  • #
  • #