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Relief valve from Sun Hydraulics
Pilot-operated, anti shock relief cartridges limit maximum system pressure and also limit the rate of pressure rise. The valve opens and then ramps closed at a constant speed, independent of settings and flows. The adjust screw determines the maximum (relief) setting and the minimum (threshold) setting.
Note: Data may vary by configuration. See CONFIGURATION section.
| Cavity | T-3A |
| Series | 2 |
| Capacity | 50 gpm |
| Capacity (metric) | 200 L/min. |
| Maximum Operating Pressure | 5000 psi |
| Maximum Operating Pressure (metric) | 350 bar |
| Factory Pressure Settings Established at | 4 gpm |
| Factory Pressure Settings Established at (metric) | 15 L/min. |
| Control Pilot Flow | 10 – 25 in³/min. |
| Control Pilot Flow (metric) | 0,16 – 0,41 L/min. |
| Pressure Ramp Up Time | 200 – 400 ms |
| Response Time – Typical | 2 ms |
| Adjustment – No. of CW Turns from Min. to Max. setting | 4.5 |
| 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 |
| Adjustment Screw Internal Hex Size | 5/32 in. |
| Adjustment Screw Internal Hex Size (metric) | 4 mm |
| Locknut Hex Size | 9/16 in. |
| Locknut Hex Size (metric) | 15 mm |
| Locknut Torque | 80 – 90 lbf in. |
| Locknut Torque (metric) | 9 – 10 Nm |
| Model Weight | 0.89 lb. |
| Model Weight (metric) | 0.40 kg. |
| U.S. Patent # | 6,039,070 |
| Seal kit – Cartridge | Viton: 990303006 |
Control
| C | Tamper Resistant – Factory Set |
| L | Standard Screw Adjustment |
Adjustment Range
| A | 2000 – 3000 psi (140 – 210 bar), 2000 psi (140 bar) Standard Setting |
| C | 4500 – 6000 psi (315 – 420 bar), 4500 psi (315 bar) Standard Setting |
| W | 3000 – 4500 psi (210 – 315 bar), 3000 psi (210 bar) Standard Setting |
Seal Material
| N | Buna-N |
| V | Viton |
Material/Coating
| /AP | Stainless Steel, Passivated |
| /LH | Mild Steel, Zinc-Nickel |
