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API 6D Ball Valve & LNG Seal

-196℃~121℃

Helical spring energized seals for oil and gas application

Helical spring energized seals for oil and gas application

The FDB seal is made of a helical wound spring and a polymer jacket, It is the best choice for vacuum, gas and low-temperature flange sealing applications.

  • Brand:

    JST Seals
  • Item NO.:

    FDB
  • Payment:

    T/T
  • Product Origin:

    China
  • Shipping Port:

    Guangzhou
  • Order(MOQ):

    50
  • Product Detail

Helical spring energized seals for oil and gas application


The low temperature PTFE spring energized seal for the valve is a single piston seal. When the working pressure is greater than or equal to 1500LB, a high-strength backup ring can be added to protect the sealing lip from damage. It is composed of PTFE+ Helical spring, and different materials can be used for different temperatures and pressures. Usually used for 6D ultra-low temperature (- 196 °) and normal temperature.


It has high spring load, good sealing integrity under low pressure, and can be used for internal and external pressure. It is the best choice for vacuum, gas and low-temperature flange sealing applications.



Advantages:

1. Material compound passed API  6A FF/HH Immersion Testing;

2. Passed BS6364 test(-196℃);

3. High load helical wound spring with small deflection range;

4. Rigid spring acts as a energizer to resist low-temperature shrinkage;

5. NACE-approved energizers available for oil and gas use;

6. One-way or two-way design is available;

7. With single spring or double spring design;

Working Conditions
Material
Temperature range
Pressure
Medium
Sealing ring: Teflon+carbon fiber
Spring: 316SS
-196~100℃
150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB LNG, Low temperature ethylene


FDB 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

(-196℃~100℃)

FDB

Golden Elgiloy

3.1

4.8

4.7

7.1

6.1

9.5

6.9

10

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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.

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