

The K505 is a double-acting, three-piece seal for compact pistons consisting of: 1. a sealing ring of fabric-reinforced nitrile rubber, 2. two thermoplastic back-up rings to prevent extrusion under high pressures.
The K505 is a double-acting, three-piece seal for compact pistons consisting of: 1. a sealing ring of fabric-reinforced nitrile rubber, 2. two thermoplastic back-up rings to prevent extrusion under high pressures.
Suitable for heavy machinery, steel industries, marine hydraulic systems, and road-building and mining equipment.
| Ambient temperature | Pressure (bar) | Speed (m/sec) | Fluid |
|---|---|---|---|
| -30°C to +105°C | ≤1500 bar | ≤0.5 m/sec | Mineral oils (DIN 51524) |
| +5°C to +60°C | ≤500 bar | ≤0.5 m/sec | HFA and HFB |
| -20°C to +60°C | ≤500 bar | ≤0.5 m/sec | HFC |

Before buying, measure the current part with calipers and match it against the specification table: inner diameter (ID) at the shaft contact surface, outer diameter (OD) at the housing seat, and thickness (height) measured perpendicular to these two diameters. If you're unsure about the size or lip type, send the old part's code or a photo of it to IranSeal's sales team so they can find the exact match.
IranSeal's sales team is ready to answer your questions about price and availability for this product.
K16The K16 is a compact, three-piece, double-acting seal consisting of: 1. a fabric-reinforced elastomer sealing element, 2. two thermoplastic (POM) guide rings…
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K17The K17 is a two-piece, double-acting piston seal made of a sealing ring of a special PTFE compound and an O-ring as the energizing element.
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