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Relief valve from Sun Hydraulics
Air-controlled, pilot relief cartridges are used to remotely control the pressure setting of other pilot operated valves. Because capacity is limited to pilot flow, these valves should be used with valves with compatable pilot flows. They use compressed air over a diaphragm instead of an adjustable spring to control pressure setting, the air signal is supplied through a port in the hex-end of the cartridge.
Note: Data may vary by configuration. See CONFIGURATION section.
| Cavity | T-3A |
| Series | 2 |
| Capacity | .5 gpm |
| Capacity (metric) | 2 L/min. |
| Maximum Operating Pressure | 2000 psi |
| Maximum Operating Pressure (metric) | 140 bar |
| Pilot Ratio | 20:1 |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 5 drops/min. |
| Maximum Valve Leakage at 110 SUS (24 cSt) (metric) | 0,3 cc/min. |
| Response Time – Typical | 2 ms |
| Valve Hex Size | 1 1/8 in. |
| Valve Hex Size (metric) | 28,6 mm |
| Valve Installation Torque | 45 – 50 lbf ft |
| Valve Installation Torque (metric) | 61 – 68 Nm |
| Model Weight | 0.54 lb. |
| Model Weight (metric) | 0.24 kg. |
| Seal kit – Cartridge | Viton: 990203006 |
Control
| A | External 1/4 NPTF Port |
Operating Range
| B | 50 – 1500 psi (3,5 – 105 bar) |
Seal Material
| N | Buna-N |
| V | Viton |
