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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)
Name: Check Valve (Cartridge Type)
Application: Maintains pressure, prevents fluid backflow, stabilizes pressure and reduces impact in hydraulic circuits of drill rigs and jumbo drills.
Features:
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
Applicable Atlas Copco Models:
ROC series: ROC F9, ROC L8
PowerROC T35 / T40 / T45
SmartROC, FlexiROC drill jumbos
Difference between Check Valve and Hydraulic Lock
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
San-dvik does not supply the original part numbered 823112086. Hydraulic components for such equipment follow universal standards in structure and mounting dimensions.
Replacement Options:
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.
Select genuine San-dvik hydraulic locks or check valves according to mounting cavity size, working pressure and flow rate.
Choose domestic equivalents with matching specifications for cost-effective use.
General Specifications for Hydraulic Locks & Check Valves on San-dvik DD/DL Series:
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
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)
