Epiroc 832100260 Solenoid Valve Complete Technical Specifications

Basic Information

1. Epiroc Part No.: 832100260
2. Valve Original Manufacturer: ASCOSeries 321 Quick Exhaust Solenoid Valve
3. Valve Model: 832100260 (3/2 2-position 3-way, Normally Closed)
4. Application: Pneumatic pilot control, rod chucker and feed cylinder quick exhaust valve for Epiroc drill jumbos & tunneling drills

1. Valve Construction Parameters

• Valve Type: 3/2 2-position 3-way pilot operated, Normally Closed (NC), Quick Exhaust
• Port Size: 1/4" NPT female thread (air supply, output, exhaust ports)
• Flow Coefficient Cv: 0.8
• Mounting: Any orientation; DC coil recommended to be installed vertically upward
• Built-in Manual Override Button: Red test button on top of coil for air circuit test without power supply

2. Pressure & Medium Parameters

• Applicable Media: Compressed air, inert gas, clean water, light lubricating oil
• Operating Pressure Range: 0.69 ~ 13.8 bar / 10 ~ 200 PSI
• Minimum Operating Differential Pressure: 0.3 bar
• Fluid Temperature: -5℃ ~ +80℃
• Ambient Temperature: -10℃ ~ +50℃
• Seal Material: NBR Nitrile Rubber (oil-resistant seal standard for mine air supply)
• Valve Body Material: Hot-forged Brass
• Internal Components: 304 stainless steel sleeve, 430F armature, 302 stainless steel spring

3. Electrical Parameters (Standard Mine Spec 24VDC)

• Standard Voltage: 24VDC (unified specification for underground equipment)
• Coil Power: 6.1W DC
• Matching Coil Model: 238310
• Protection Class: NEMA4 / IP65, waterproof & dustproof for humid underground working conditions
• Insulation Class: Class F (155℃)
• Duty Cycle: 100% ED continuous energization without coil burnout
• Voltage Tolerance: DC ±10%

4. Performance & Working Condition Parameters

• Quick Exhaust Feature: Direct exhaust to atmosphere for rapid cylinder pressure relief and faster boom movement response
• Response Time: Opening ≈100ms, Closing ≈650ms
• Recommended Air Supply: Dry mine compressed air with air/oil/water separator installed
• Certifications: Standard version with CE/UL/CSA; ATEX explosion-proof version optional for gassy underground mines

5. Compatible Epiroc Equipment Models

6. Interchangeable & Spare Parts

1. Original Equivalent: ASCO 8321G00260 24DC
2. Repair Kit: 302925 seal repair kit (spool, NBR sealing rings)
3. Domestic Replacement Requirements: 1/4 NPT thread, 24VDC, 2-position 3-way brass quick exhaust valve, directly interchangeable under working pressure ≤16 bar

7. Weight & Dimension Reference

• Net Weight of Single Valve: Approx. 0.42kg
• Thread Note: 1/4" American NPT thread, not directly interchangeable with G1/4 British straight pipe thread (adapter required)