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50Hydraulic PTFE rotary seals
High pressure Rotary Seals is one bidirectional rotary seal which can bear both sides of pressure and alternating pressure.
High pressure rotary seals are used in pneumatic and low to medium load rotary or swing applications. The rotary piston seal is a two-piece design consisting of a standard size O-ring that powers the wear-resistant PTFE cover.
The rotary piston seal provides long-term wear and low friction without stick slip. The PTFE outer diameter has special interference with the O-ring design to eliminate the rotation between the O-ring and the seal. The inner diameter of polytetrafluoroethylene (PTFE) is designed with special grooves to provide lubrication and produce labyrinth effect to reduce leakage.
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Advantages: 1. Simple groove, small dimension. 2. Good friction resistance, no creeping. 3. Good abrasion resistance, crumpling resistance, high temperature resistance. 4. With good chemical corrosion resistance, also can choose different material o-rings, it almost can work with all medium. 5. The maximum diameter of product can reach 2000mm. |
| Working Conditions | ||||
| Working pressure | Working temperature | Working speed | Working medium | Material |
| ≤30Mpa |
-30 to +110℃；
-25 to +220℃（Depend on o ring and square ring material)
|
≤1m/s | Hydraulic oil, gas, water etc |
Oring(NBR/FKM,A75±5
Slip ring: P03/Y04
|
Size:
6-600mm
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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.
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.
FFKM O-rings provide the highest temperature (up to 620 ° F) and most common chemical resistance among all rubber O-ring and gasket materials.
The oil scraper ring is a part located at the rear of the pump packing seal.
EVZ is commonly used in high-pressure mud pumps and fracturing pumps, namely Packings, the high-speed reciprocating dynamic seals.
JST ESY series design is commonly used as dynamic seal for ball valve stem, and the ESY with various V rings and T shape support rings could be used for fugitive emission valves, meeting the requirements of ISO-15848.
The FHB seal is made of a helical wound spring and a polymer jacket, which is mainly used as a Flange internal face seal.
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