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JST SealsItem NO.:
BVRPayment:
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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 | |||||
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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.
EVZ is commonly used in high-pressure mud pumps and fracturing pumps, namely Packings, the high-speed reciprocating dynamic seals.
S Seals are well suited for sealing wellheads, connectors, downhole tools, high pressure valves and other demanding oil and gas applications. The non-extrusion springs can be fabricated from different metals.The S seal is made of spring and rubber material could be NBR, HNBR, FKM ect.
T-Seal is a compact three-piece double acting seal composed of a T shaped elastomeric element and two rigid anti-extrusion rings. These compact sealing elements are designed for installation in simple O-ring grooves and are often used to modify faulty O-rings.
UNS UHS is a lip-seal which can be used for both piston and rod .
For inquiries about our products or pricelist, please leave to us and we will be in touch within 24 hours.
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