Dual Contact Pressure Switch

Overview of Dual Contact Pressure Switch

The Dual Contact Pressure Switch is a robust, piston-actuated mechanical controller designed for high-pressure industrial applications. Unlike standard single-point switches, this device features two independent internal micro-switches that can be synchronized to provide dual-stage control logic—such as a "High Pressure Alarm" followed by an "Emergency Shutdown." The sensor utilizes a leak-free piston design, making it exceptionally reliable for media with lubricating properties, such as hydraulic oils and oil-mist air.

Features of Dual Contact Pressure Switch

• Leak-Free Piston Sensor: Specifically engineered for high-pressure durability and compatibility with lubricating media, ensuring a long service life without fluid bypass.

• Dual-Stage Control: Equipped with two micro-switches to manage separate electrical circuits simultaneously, offering a synchronization error of ≤0.5% for precise timing.

• High Pressure Capability: Provides a wide adjustable setpoint range from 0.3MPa up to 23MPa, covering most industrial hydraulic and pneumatic requirements.

• Broad Media Compatibility: Suitable for compressed air, oil-mist gases, hydraulic oil, water-oil emulsions, and other neutral liquids with a viscosity <1×10⁻³ m²/s.

• High Load Switching: The integrated micro-switches support AC 220V 6A (resistive), allowing for the direct control of pumps, motors, or heavy-duty solenoid valves.

• Vibration & Shock Resistant: Rated for vibration resistance up to 20 m/s², maintaining setpoint stability even when mounted on heavy machinery or near pulsating pumps.

• Thermal Resilience: Capable of handling process media temperatures from 0°C up to 120°C, while operating in ambient environments as low as -40°C.

Applications of Dual Contact Pressure Switch

• Hydraulic Power Units (HPUs): Monitoring system pressure to control loading/unloading valves and emergency relief sequences.

• Lubrication Systems: Ensuring optimal oil pressure in large industrial gearboxes and rotating machinery.

• Compressed Air Systems: Managing oil-injected screw compressors and high-pressure pneumatic storage tanks.

• Machine Tools: Providing pressure interlocking for hydraulic clamps, spindles, and cooling systems.

• Heavy Industry: Used in metallurgy and steel mills for high-pressure fluid monitoring in challenging environmental conditions.

Price of Dual Contact Pressure Switch

The price of the Dual Contact Pressure Switch is determined by the specific pressure range configuration and the requirements for mounting or thread adaptations. Given its high-pressure piston design and dual-contact synchronization features, it offers an excellent balance of technical performance and cost-efficiency for industrial OEMs. For a specific quotation based on your required setpoints and volume, please contact the ZINACA Instruments sales department.

OEM Service

• Private Labeling: Permanent laser marking of your brand logo and part numbers on the device housing.

• Thread Customization: While standard with G1/4 internal threads, we can provide adapters or custom machining for various international thread standards.

• Setpoint Pre-set: Factory calibration of the dual switching points according to your specific system logic to simplify on-site installation.

• Electrical Connectivity: Custom cable lengths or specialized plug-in connectors (e.g., DIN or Aviation plugs) to match your machine's wiring harness.

Technical Specifications