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Sequence valve from Sun Hydraulics
Direct-acting sequence valves with reverse-flow check will supply a secondary circuit with flow once the pressure at the inlet (port 1) has exceeded the valve setting. Additionally, these valves incorporate an integral check valve to provide reverse flow from port 2 (sequence) to port 1 (inlet). The pressure setting of a sequence valve controls the pressure at port 1 relative to the pressure at the drain (port 3).
Note: Data may vary by configuration. See CONFIGURATION section.
| Cavity | T-19A |
| Series | 4 |
| Capacity | 120 gpm |
| Capacity (metric) | 480 L/min. |
| Maximum Operating Pressure | 5000 psi |
| Maximum Operating Pressure (metric) | 350 bar |
| Factory Pressure Settings Established at | 2 in³/min. |
| Factory Pressure Settings Established at (metric) | 30 cc/min. |
| Maximum Valve Leakage at Reseat | 10 drops/min. |
| Maximum Valve Leakage at Reseat (metric) | 0,7 cc/min. |
| Check Cracking Pressure | 25 psi |
| Check Cracking Pressure (metric) | 1,7 bar |
| Response Time – Typical | 2 ms |
| Adjustment – No. of CW Turns from Min. to Max. setting | 5 |
| Valve Hex Size | 1 5/8 in. |
| Valve Hex Size (metric) | 41,3 mm |
| Valve Installation Torque | 350 – 375 lbf ft |
| Valve Installation Torque (metric) | 474 – 508 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 | 3.66 lb. |
| Model Weight (metric) | 1.66 kg. |
| Seal kit – Cartridge | Viton: 990019006 |
Control
| L ★ | Standard Screw Adjustment |
| C | Tamper Resistant – Factory Set |
Adjustment Range
| A ★ | 500 – 3000 psi (35 – 210 bar), 1000 psi (70 bar) Standard Setting |
| W ★ | 800 – 4500 psi (55 – 315 bar), 1000 psi (70 bar) Standard Setting |
| B | 300 – 1500 psi (20 – 105 bar), 1000 psi (70 bar) Standard Setting |
| C | 2000 – 6000 psi (140 – 420 bar), 2000 psi (140 bar) Standard Setting |
| D | 200 – 800 psi (14 – 55 bar), 400 psi (28 bar) Standard Setting |
| E | 100 – 400 psi (7 – 28 bar), 200 psi (14 bar) Standard Setting |
Seal Material
| N ★ | Buna-N |
| V | Viton |
| E | EPDM |
Material/Coating
| /AP | Stainless Steel, Passivated |
