Hydraulic Lock – Atlas Copco 9106063010/8231120286

• Part number 823112086 is not the standard part number for Hydraulic Lock.
• It is a common abbreviation or entry error for Atlas Copco 8231120286, a cartridge check valve.
• The standard part number for Hydraulic Lock in the Atlas Copco product range is 9106063010.
• San-dvik does not have an official equivalent part number. However, hydraulic locks and check valves of matching port size, pressure rating and mounting dimensions can be used as replacements.

1. Atlas Copco 823112086 (Equivalent to 8231120286)

• Material: Hardened stainless steel valve body with high-elasticity seals
• Sealing structure: Triple O-rings plus orange retaining ring
• Precision threads for leakage prevention
• High pressure resistance, designed for mining and drilling equipment

• ROC series: ROC F9, ROC L8
• PowerROC T35 / T40 / T45
• SmartROC, FlexiROC drill jumbos

• Check Valve (8231120286): Allows fluid to flow in one direction only for basic pressure retention.
• Hydraulic Lock (e.g. 9106063010): Pilot-operated double check valve. It locks cylinders securely in position to prevent drifting, delivering higher safety performance.

2. Replacement Solutions for San-dvik DD/DL Series

1. Directly adopt Atlas Copco 8231120286 of the same specification. It features identical thread size and pressure rating, and is widely used for cross-brand replacement in mining sites.
2. Select genuine San-dvik hydraulic locks or check valves according to mounting cavity size, working pressure and flow rate.
3. Choose domestic equivalents with matching specifications for cost-effective use.

• Working Pressure: 315 bar
• Mounting Type: Cartridge type (common thread sizes: 1/2", 3/4")
• Flow Rate: 20–40 L/min
• Function: Locking of drill boom, feed and support cylinders

3. Quick Reference

• 823112086 = 8231120286: Atlas Copco Check Valve
• Hydraulic Lock: Pilot-operated double check valve (e.g. 9106063010)
• San-dvik: No matching original part number; interchangeable with components of equivalent specifications

Recommended Replacement Part List for Hydraulic Locks & Check Valves for San-dvik DD/DL Series (Including Atlas Copco, Epiroc and domestic equivalents)