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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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 |
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3.1 | 7 |
| 4.55 | 9 | |||||
| 6.1 | 13 | |||||
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.
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.
The seal jacket of adhesive dispenser/dispensing seal is made of ultra-high molecular UHMWPE or PEEK, with installed stainless steel anti-corrosion spring with low temperature resistance treatment.
JST's Inner and Outer BOP Seals could be made according to customer requirements. These seals are used in various type of Blow Out Preventors (BOP's).
ptfe wear strips can keep the piston centered as well as preventing metal-to-metal contact.
Spring energized PTFE seals consist of variety of jacket profiles and spring types. It can achieve the sealing effect compensation under different pressure conditions by spring energizer.
For inquiries about our products or pricelist, please leave to us and we will be in touch within 24 hours.
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