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JST SealsItem NO.:
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50High pressure ball valve seat seal
The spring energized seal can select different spring forms and sealing lip designs according to the applications such as dynamic, static, internal and external pressure, resulting in impassable sealing force and compression deformation. The spring force will affect the performance, friction and wear performance of the jacket. The compressible stroke determines the compensation ability of the jacket for the wear of the sealing lip and the dimensional tolerance variation of the sealing groove.
Customized products can be developed according to customers' needs.
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Advantages: 1.Could withstand high pressure and low temperature. 2. Suitable for medium and high pressure environments; 3.Good sealing performance. |
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Working Conditions |
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Temperature range |
Pressure |
Medium |
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-100~180℃ |
≤400 bar |
Gas, water |
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| Cross section NO. | O ring section diameter |
Recommended
inner diameter range
d(mm)
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Width of groove
L(mm)
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Depth of groove
G(mm)
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Maximum gap(mm) | Maximum fillet radius R1(mm) | |
| ≥ | ＜ | ||||||
| A | 1.78 | 4 | 10 | 2.4 | 1.45 | 0.13 | 0.4 |
| B | 2.62 | 10 | 20 | 3.6 | 2.25 | 0.13 | 0.4 |
| C | 3.53 | 20 | 40 | 4.8 | 3.1 | 0.15 | 0.6 |
| D | 5.33 | 40 | 120 | 7.1 | 4.7 | 0.17 | 0.8 |
| E | 6.99 | 120 | 700 | 9.5 | 6.1 | 0.25 | 0.8 |
| F | Non-standard items (please specify groove dimensions when ordering) | ||||||
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Categories
The BVR series is made of a canted level spring and a polymer jacket, which is mainly used as a stem seal.
The spring energized seal is a high-performance Teflon seal with a special spring inside.
The FHB seal design of the spiral spring combined arc lip, and the pressure comes from the inside.
LNG Lip Seal For Filling Guns is commonly used in LNG (liquefied natural gas) filling guns.
The BVR series is made of a canted level spring and a polymer jacket, which is mainly used as a seat seal.
The bonded seal is used in work-over and sand control operations. With the bonding of elastomer to a steel core, this serve to prevent excessive rubber compression under loading.
Perfluoroelastomer (FFKM) O-rings have carbon fluorine bonds, making them one of the most thermally stable, oxidative stable, and chemically stable fluorinated polymers.
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.
For inquiries about our products or pricelist, please leave to us and we will be in touch within 24 hours.
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