Part No.: D01-337-8, Ingersoll Rand BU7A Air Winch Piston Ring Repair Kit
Application: Radial piston air motor of BU7A explosion-proof pneumatic hoist
Composition: 4 sets cast iron compression rings + internal spring expanders for 4 pistons
Material: Wear-resistant alloy cast iron sealing ring, spring steel tension ring
Function: Air tight sealing for reciprocating piston, recover motor output torque
Temperature Range: -35℃ ~ +90℃, oil & condensed water resistant
