Ventable, pilot-operated, balanced piston relief cartridges are normally closed pressure regulating valves. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to regulate the pressure. They provide a vent port (port 3) that connects between the main piston and pilot stage to provide for remote control by other pilot or 2-way valves. These valves are accurate, have low pressure rise vs. flow, they are smooth and quiet, and are moderately fast.
- A remote pilot relief on port 3 (vent) will control the valve below its own setting.
- Will accept maximum pressure at port 2; suitable for use in cross port relief circuits. If used in cross port relief circuits, consider spool leakage.
- Main stage orifice is protected by a 150-micron stainless steel screen.
- Not suitable for use in load holding applications due to spool leakage.
- Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
- Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
- Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.
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Cavity T-17A Series 3 Capacity 240 L/min. Factory Pressure Settings Established at 15 L/min. Maximum Operating Pressure 350 bar Control Pilot Flow 0,25 – 0,33 L/min. Maximum Valve Leakage at 110 SUS (24 cSt) 65 cc/min.@70 bar Response Time – Typical 10 ms Adjustment – No. of CW Turns from Min. to Max. setting 5 Valve Hex Size 31,8 mm Valve Installation Torque 203 – 217 Nm Adjustment Screw Internal Hex Size 4 mm Locknut Hex Size 15 mm Locknut Torque 9 – 10 Nm Model Weight 0.62 kg. Seal kit – Cartridge Buna: 990017007 Seal kit – Cartridge EPDM: 990017014 Seal kit – Cartridge Polyurethane: 990017002 Seal kit – Cartridge Viton: 990017006
