KDF PISTON SEAL
– A seal that ensures good reaction to load peaks and low friction in the low pressure range. The lips asymmetrical are designed to differentiate behaviors on static surfaces and dynamic: the static one is more flexible sensitive to pressure changes e guarantees a large contact surface; the dynamic one is shorter and stiffer for concentrate the load against the surface dynamic.
– An angle guide ring that supports i radial loads and drives the piston into the cylinder
Features
• Simple execution of the seat
• Economical solution for guiding the piston
• Long service life
• High resistance to extrusion
• Excellent wear resistance
• Good temperature resistance
• Easy to install
MATERIAL | ||
1Type | Designation | Hardness |
Polyurethane | SEALPUR 93 | 93°ShA |
2Type | Designation | |
Acetal resin with glass fibre | BEARITE | |
FIELD OF APPLICATION | ||
Pressure | Speed | Temperature |
≤ 400 bar | ≤ 0.5 m/s | -40°C÷ +110°C |
SURFACE ROUGHNESS | ||
Dynamic surface | Ra ≤ 0.3 um | Rt ≤ 2.5 um |
Static surface | Ra ≤ 1.6 um | Rt ≤ 6.3 um |
