Safety Dual Valve Instruction Manual
(For Punch Press Machines)
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1. Product Overview
1.1 Product Name
Safety Dual Valve for Punch Press Machines (Model: SK23JSD-L/XXX)
1.2 Functional Description
This valve adopts a dual-redundancy design with two independent pneumatic channels. It ensures immediate power source cutoff during emergency stops, operational errors, or single-valve failure, thereby protecting personnel and equipment safety.
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2. Technical Specifications
Parameter Value
Operating Pressure 0.2~1.0 MPa
Medium Clean Compressed Air (Filtration ≥5μm)
Temperature Range 10ºC ~ +60ºC
Valve Body Material Aluminum Alloy (Anodized Surface)
Seal Material Nitrile Rubber (NBR)
Response Time ≤0.1 sec
Protection Rating IP65
3. Installation Instructions
3.1 Pre-Installation
- Ensure air supply is clean, dry, and free from oil/contaminants.
- Verify valve model matches machine pneumatic interfaces.
3.2 Installation Procedure
1. Mounting: Securely install valve vertically in designated position on press pneumatic control panel using M6 bolts.
2. Pneumatic Connections:
- Main Circuit: Connect air supply to inlet (P) and actuator (e.g., cylinder) to outlet (A).
- Redundant Circuit: Independently connect backup channel without cross-interference.
3. Electrical Wiring:
- Solenoid Coil Voltage: DC24V±10% or 110V/220V (specify in advance) (Red: +, Black: -).
- Reliably ground wire to equipment earthing terminal.
4. Operating Procedures
4.1 Pre-Operation Checks
- Confirm manual reset button is in "ON" position.
- Activate test button to simulate emergency stop and validate dual-channel synchronization.
4.2 Normal Operation
- During operation, both valves work simultaneously. Failure of either channel triggers red alarm light and automatic backup activation.
4.3 Emergency Stop
- Press E-stop button to synchronously cut off air supply, halting press slide immediately.
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5. Maintenance
5.1 Routine Maintenance
- Clean valve surface weekly; inspect air hose connections for leaks.
- Monthly test response time and record data.
5.2 Periodic Service
- Replace seals every 6 months; clean spool with anhydrous ethanol.
- Annual professional calibration of solenoids and sensors.
6. Troubleshooting
Symptom Possible Cause Solution
Valve Inaction Power off / Coil burnout Check wiring; replace coil
Air Leakage Seal degradation / Loose fittings Replace seals or tighten fittings
Delayed Response Low pressure / Spool blockage Increase pressure or clean spool
7. Safety Warnings
- 1. NEVER disassemble valve under pressure! Always depressurize before servicing.
- 2.Internal adjustments prohibited by non-authorized personnel.
- 3.Immediately shutdown if abnormal noise or leakage occurs.
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8. After-Sales Service
- Warranty: 12 months (non-human damage).
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Product Description
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