P3Y Global Soft Start Valves offer a combined soft start/quick dump or soft start only option that provides safe introduction of pressure to a machine or system allowing the pressure to gradually build to a set point before fully opening to deliver full flow at line pressure. These valves can be an important safety factor and prevent damage to tooling. These P3Y soft start valves can be mounted using a modular connector to other P3Y global air preparation products.   

These valves should be mounted downstream of the FRL and used in combination with valves and cylinders as a main function of protection for machinery. Installation should be made with the soft start needle easily accessible for manual adjustment. Pressure supply piping must be the same size as the inlet port or larger, to ensure the pilot valve receives sufficient pressure supply during high flow conditions.

Once installed a pilot signal is received at the pilot operator, the valve shifts, closing the connection between ports 2 and 3. At the same time, air flow begins between ports 1 and 2 at a slow rate, controlled by the needle valve located on top of the valve. When the downstream pressure reaches approximately 60% of the supply pressure, the main valve spool opens, allowing full flow through the valve in the system.

When using the P3Y combined soft start/quick dump valve option, if the pilot signal or system pressure is lost, the valve returns to its initial state, venting the downstream pressure through its exhaust port.

Note: soft start valves are not intended to be used as emergency shut-off valves but should be placed after a manual shut off valve.

Markets:
• Factory Automation
• Heavy Industries

• Appliances
• Entertainment Automation
• Machine Tools
• Molding
• Packaging Machinery
• Printing and Marking Equipment
• Vehicle Assembly Facilities
• Wearing Apparel
• Food and Beverage
• Processing

• Misc Manufacturing

Features/Benefits:
• Safely energizes the downstream pneumatic system
• Modular design with integrated ports
• 3-way, 2-position function ensures safe pressure introduction
• High flow & exhaust capability

• Integral 3/4" or 1" ports
• Smooth start-up of pneumatic system
• Adjustable slow start
• Solenoid or air pilot operation options
• Silencer included

• Robust and lightweight aluminum housing

Applications:
• Assembly
• Production Lines

• Positioning
• Cutting
• Machining
• Pick and place
• Packaging and wrapping systems