The QPM11 Adjustable Air Pressure Switch delivers precise control for pneumatic and hydraulic systems with a reliable 0.02 to 1MPa adjustment range. Its durable diaphragm mechanism ensures accurate, repeatable switching to protect your compressor and connected equipment from pressure fluctuations, extending system lifespan and improving operational safety. Features and Benefits
- 0.02-1MPa Adjustable Range - Fine-tune activation and cut-out pressures to match the exact requirements of your specific compressor or hydraulic system.
- Durable Diaphragm Actuator - Provides sensitive and reliable pressure sensing with excellent resistance to wear, ensuring consistent performance over long service life.
- SPDT Switching (NO/NC) - Features both Normally Open and Normally Closed contacts for maximum wiring flexibility to control motors, solenoids, or alarm circuits.
- Compact and Robust Housing - Engineered for reliable operation in demanding industrial environments, workshops, or mobile applications.
- Manual Reset Function - Offers an added safety feature, requiring manual intervention to restart after a pressure fault or emergency shutdown. Applications
- Industrial Air Compressors - Serves as the primary control unit to automatically start and stop the compressor motor, maintaining optimal tank pressure.
- Hydraulic Power Units - Protects pumps and components by monitoring and controlling system pressure, preventing overload and potential damage.
- Pneumatic Control Panels - Acts as a reliable sensor for automated machinery, sequencing operations based on preset air pressure thresholds.
- DIY and Workshop Projects - An excellent choice for enthusiasts and professionals building or maintaining custom air-driven tools, painting systems, or sandblasting setups. Note: Verify your system's voltage and pressure requirements before installation to ensure compatibility. Proper installation by a qualified individual is recommended for optimal performance and safety.
Product Type: Air Pressure Switch. Pressure Range: 0.02 to 1MPa. Actuator Type: Diaphragm. Contact Configuration: SPDT (NO/NC). Reset Type: Manual Reset. Compatible Media: Pneumatic and Hydraulic Systems. Port Connection Size: 1/4" NPT or BSP (inferred standard). Diaphragm Material: Nitrile Rubber or similar elastomer (inferred). Housing Material: Engineering Plastic or Die-cast Aluminum (inferred). Seal Material: Nitrile O-rings (inferred). Operating Temperature Range: -10°C to 80°C (inferred). Pressure Setting Range: 0.02 MPa to 1.0 MPa. Electrical Rating: 250VAC, 15A (inferred for compressor duty). Ingress Protection Rating: IP54 (inferred for industrial environments). Maximum Operating Pressure: 1.2 MPa (inferred safety factor). Actuation Mechanism: Diaphragm-operated mechanical switch. Adjustment Method: Screwdriver-adjustable setpoint screw. Contact Type: Single-pole double-throw (SPDT). Electrical Life: >100,000 cycles at rated load (inferred). Hysteresis: Approximately 0.02 - 0.05 MPa (inferred). Mechanical Life: >1,000,000 cycles (inferred). Mounting: Panel mount with locknut (inferred). Pressure Setting Resolution: 0.01 MPa (inferred). Product Type: Adjustable Diaphragm Air Pressure Switch. Proof Pressure: 1.5 MPa (inferred). Switch Configuration: Normally Open (NO) and Normally Closed (NC) contacts. Q: What is the adjustable operating pressure range for this switch? A: This pressure switch can be adjusted across a working range of 0.02 to 1MPa, allowing users to set activation and cut-out thresholds to match the specific operational pressure requirements of their pneumatic or hydraulic system.. Q: What electrical contact configuration does the switch provide? A: The switch features single-pole double-throw (SPDT) contacts with both Normally Open (NO) and Normally Closed (NC) terminals. This provides flexible wiring options for directly controlling motors, operating solenoid valves, or signalling system alarm circuits.. Q: Does the pressure switch automatically restart after a fault? A: No, this unit is equipped with a manual reset function. Following an emergency shutdown or a detected pressure fault, an operator must manually reset the switch before the connected machinery can resume operation.. Q: What media and equipment is this pressure switch suitable for? A: The switch is designed for use in pneumatic and hydraulic applications. It is suitable for fitting to industrial air compressors, workshop air systems, hydraulic power packs, and mobile plant requiring pressure monitoring and protection..