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JST SealsItem NO.:
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50Ball 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.
The cryogenic valve seat seals for 6D Ball valve is mainly used for single-piston valve seat of 6D ball valve (temperature range IS-50~260 pressure range can reach 2500LB). A support ring is needed to protect the sealing lip when the reverse pressure in the middle cavity exceeds 1.33 times of rated pressure. When it is above 1500LB, need to add back-up ring the bottom.
According to different working conditions and application, JST will make related adjustments to the products, including but not limited to: changing the seal jacket material, changing the spring technology, adding T cover, adding gaskets, etc.
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Advantages:
1. Material compound passed API 6A FF/HH Immersion Testing; |
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Working Conditions |
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Temperature range |
Pressure |
Medium |
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-50~180℃ |
150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB |
LNG, Low temperature ethylene |
| API 6D Stem Seal selection table | ||||||
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Groove DWG:
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| Temperature Rating | JST Series | Spring | 0~900（LBS) | 900~2500(LBS) |
G=(OD-ID)/2
Standard CS:G=(OD-ID)/2
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L Value |
| (-50℃~180℃) | BVR |
Elgiloy
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3.1 | 7 |
| 4.55 | 9 | |||||
| 6.1 | 13 | |||||
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Categories
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.
JST FHR series is made of a helical wound spring and a polymer jacket, which is mainly used for rod.
JST FHP series is made of a helical wound spring and a polymer jacket, which is mainly used for piston.
The FHB seal is made of a helical wound spring and a polymer jacket, which is mainly used as a Flange internal face seal.
FFKM O-ring is a circular seal made of perfluoroelastomer compound, with a higher fluorine content than FKM fluoroelastomer.
JST's RGD (Rapid Gas Decompression) o ring can be applicated in high and low temperature environment with high pressure. It is widely used in detection and drilling equipment, completion equipment, underwater valves and pumps, compressor ect.
PDR rotary shaft seal extends the boundaries of elastomeric radial shaft seals, utilizing advanced materials and design techniques to provide optimal sealing performance for each application. The result is a superior sealing solution that retains a compact sealed casing.
Liner Wiper Plugs separates drilling fluid from cement during displacement.
For inquiries about our products or pricelist, please leave to us and we will be in touch within 24 hours.
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