B7 - PU u-cup piston seal

1. Description

The B7 profile from Forever Seals is a non-symmetrical, hydraulic cylinder piston seal. The knife trimmed, beveled lip contacts the bore to provide enhanced low to high pressure sealing and wiping action. When installed, the diameter of the B7 profile is stretched slightly to fit the gland. This ensures a tight static seal with the gland and improves stability in application. The B7 profile is available in Forever Seals proprietary urethane compounds providing excellent wear, extrusion and compression set resistance. The B7 profile is a uni-directional seal. Two seals can be placed on a piston, back to back, in separate glands offering bidirectional fluid sealing.

2. Installation Recommendation

3. Technical Data
Pressure: below 400 Bar,
Temperature: -35  to +110℃; Speed: 0.5m/s
Media: Hydraulic oils (mineral oil-based)
Material: High-grade PU
Hardness: 90-95 Shore A; Color:Jasper
4. Advantages
Particularly strong wear resistance.
Insensitivity to shock loads and pressure peaks.
High crush resistance.
It has an ideal sealing effect under no load and low-temperature conditions.
Suitable for demanding working conditions.
Easy to install.