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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.
Brand:
JST SealsItem NO.:
PDRPayment:
T/TProduct Origin:
ChinaShipping Port:
GuangzhouOrder(MOQ):
50High speed PDR rotary shaft seals
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.
PDR seal consists of only two parts - a precision manufactured metal body and a mechanically retained PTFE sealing element. Unlike seals with pressed metal shells, gaskets are not required to provide sealing between the lip and the shell. This is provided through mechanical retention of the lip edge, thereby improving the chemical resistance and temperature range of the sealing system.
Where required, PDR seals can provide hydrodynamic characteristics on the sealing lip. This provides a positive displacement of the fluid as a result of shaft rotation, providing improved sealing in applications where the shaft rotates only in a single direction. This feature also increases the flexibility of the lip edge, which allows for a wider contact band between the lip edge and the shaft, and helps to reduce shaft load and related wear temperatures.
The mechanical retention of PTFE provides a sturdy product, which also eliminates the sometimes environmentally harmful process of bonding PTFE to metal or elastic substrates.
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Application |
Features |
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Durability in high temperature environments: Crank shafts, engines, gear boxes, axels, clutches, etc.
Semiconductor Industry: Vacuum pumps for example
Actuators, gear boxes and motors |
1. Highly wear-resistant 2. Excellent chemical resistance 3. High speed capability 4. Wide temperature range 5. Low friction and power consumption 6. Dry running capability 7. Standard and custom designs |
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Ø - Range |
Temperature range |
Pressure range |
Velocity |
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20~170 mm |
-30~200℃ |
1MPa |
30 m/s |
Size Range(mm):
Shaft sizes 20 mm to 170 mm as standard for all types.
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Categories
High-pressure Rotary shaft seals are one bidirectional rotary seal which can bear both sides of pressure and alternating pressure. It is made with slip ring and o-ring/square ring.
Rotary shaft seals with PTFE ring have been specially developed for use in harsh conditions. They are used when shaft seals with classic elastomer lips reach their performance limits.
High pressure Rotary Seals is one bidirectional rotary seal which can bear both sides of pressure and alternating pressure.
High pressure Rotary Seals is one bidirectional rotary seal which can bear both sides of pressure and alternating pressure.
This is sealing product developed by JST to meet the increasingly demanding sealing needs of equipment manufacturers and users in semiconductor, petrochemical, mechanical seal, instrumentation, energy, biopharmaceutical, food and medical industries.
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.
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.
EVZ is commonly used in high-pressure mud pumps and fracturing pumps, namely Packings, the high-speed reciprocating dynamic seals.
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