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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.
ID Face Seal for Cameron Type FLS Gate Valves, are spring-loaded, pressure-energized lip seal that improve gate and seat service life for all Cameron style FLS gate valves.
V Packing consist of multiple male and female adaptor, usually a group of three to seven v rings, used for low or high pressure applications with Single or Double acting cylinder.
In LNG operations, valves can regularly encounter temperatures below -320 F (-196 C) and pressures above 750 pounds per square inch (psi). They are also subjected to periodic variations in temperatures known as “thermal cycling,” which can result in hardware expansion as well as shrinkage and material stresses. These factors make reliable, long-term valve operation an engineering challenge.
High pressure Rotary Seals is one bidirectional rotary seal which can bear both sides of pressure and alternating pressure.
The BVR series is made of a canted level spring and a polymer jacket, which is mainly used as a seat seal.
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