Epiroc Diaphragm 3115182201 (for Boomer Series)

1. Core Specifications

• Part No.: 3115182201 (3115 1822 01)
• Brand: Epiroc / Atlas Copco
• Material: Oil-resistant and anti-aging synthetic rubber (NBR/PU), black
• Weight: Approximately 0.35 kg
• Max Working Pressure: 400 bar
• Operating Temperature Range: -40℃ ~ +120℃

2. Compatible Models

• Boomer Drill Rigs: Boomer 281, Boomer E2, Boomer M2, etc.
• COP Rock Drills: COP1238K, COP1638HD/HD+, COP1838HD/HD+/HE+, COP2238HD+, COP2560+, etc.

3. Functions

• Pressure isolation: Separates hydraulic chamber and compensation chamber to prevent cross-flow of hydraulic oil.
• Vibration damping: Absorbs high-frequency vibration to protect valve bodies and sealing components.
• Sealing and pressure retention: Maintains stable circuit pressure and reduces oil leakage.
• Volume compensation: Expands and contracts with piston movement to compensate for hydraulic oil volume changes.

4. Appearance Features

• Black rubber disc with a central mounting stem and an extra-thick outer flange.
• Smooth surface with partial reinforced texture, featuring excellent tear resistance and aging resistance.
• 4-hole flange mounting, compatible with standard hydraulic chamber seats.

5. Differences from Sand-vik 09260298

• Epiroc 3115182201: Designed for Epiroc Boomer and COP series. Outer diameter approx. Ø125mm with relatively thin thickness.
• Sand-vik 09260298: Designed for Sand-vik DD, DL and HLX5 units. Outer diameter approx. Ø140mm with thicker flange. The two parts are not directly interchangeable.