Regulatory ciśnienia

Parker's Threshold Sensor fitting detects the pressure drop when a cylinder reaches the end of its stroke. They produce a pneumatic or electrical output signal when the pressure drop in the exhaust chamber of the cylinder goes below their back pressure threshold. Threshold sensor fittings are compact and can be mounted on the cylinder, on the control valve or on a terminal block provided it is between the cylinder and the flow control. For accuracy, the flow control regulator should be positioned as close as possible to the cylinder. It can also be fitted to a sensor fitting mounted on the cylinder.

Markets:
• Factory/Process Automation
• Packaging
• Pneumatics
• Semi-conductor

Features/Benefits:
• No adjustment to position detectors is necessary
• Totally pneumatic installation
• 2 possible installations:
- Supplied with permanent pressure (P1): produces a pneumatic signal when the back pressure threshold is reached
-Supplied from the control valve-cylinder circuit on the opposite side: no unexpected pneumatic signal (S) can appear during pressurisation due to the actuating pressure which supplies the sensor fitting (P1)
• Polymer body
• Pneumatic version use with air piloted valve and solenoid piloted valve
• No limit switch
• Mounting flow control directly on sensor provides an additional benefit of control without adding additional fittings

Applications:
• Sequence valve signal
• Pilot valve

Parker's Threshold Sensor fitting detects the pressure drop when a cylinder reaches the end of its stroke. They produce a pneumatic or electrical output signal when the pressure drop in the exhaust chamber of the cylinder goes below their back pressure threshold. Threshold sensor fittings are compact and can be mounted on the cylinder, on the control valve or on a terminal block provided it is between the cylinder and the flow control. For accuracy, the flow control regulator should be positioned as close as possible to the cylinder. It can also be fitted to a sensor fitting mounted on the cylinder.

Markets:
• Factory/Process Automation
• Packaging
• Pneumatics
• Semi-conductor

Features/Benefits:
• No adjustment to position detectors is necessary
• Totally pneumatic installation
• 2 possible installations:
-Supplied with permanent pressure (P1): produces a pneumatic signal when the back pressure threshold is reached
- Supplied from the control valve-cylinder circuit on the opposite side: no unexpected pneumatic signal (S) can appear during pressurisation due to the actuating pressure which supplies the sensor fitting (P1)

- With Electrical Output
• Combined electrical and pneumatic installation
• Installation with continuous electrical supply only (BU)
• Guarantees an electrical signal when the back pressure threshold is reached
• Polymer body
• Pneumatic or electric version use with air piloted valve and solenoid piloted valve
• No limit switch pneumatic or electrical
• Mounting flow control directly on sensor provides an additional benefit of control without adding additional fittings

Applications:
• Sequence valve signal
• Pilot valve

Parker's Pressure Relief Valve is produced for hydraulic systems where in line quick connect couplings are used. The system pressure built up between the hydraulic unit and the coupling would not allow mechanical coupling. The Pressure Relief Valve can be mounted directly in the main inflow line so that all downstream pipe or hose lines where quick connect couplings or plugs are installed at the ends can be depressurised.

Markets:
- Agriculture
- Automotive
- Oil & Gas
- Process
- Power Generation
- Transportation
- Vocational & Municipal
- Defense
- Industrial
- Machine Tooling
- Material Handling
- Construction

Features/Benefits:
- Valve to easily depressurize the hydraulic system
- Easy assembly in existing system thanks to the female/male thread on the block

Applications:
Depressurization of hydraulic systems, both mobile and industrial applications
- Tractors
- Trucks
- Wheel loaders
- Military vehicles
- Presses