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Load holding valve from Sun Hydraulics.
Vented, balanced load control valves combine a balanced modulating element with a reverse flow check. The check valve allows free flow from the directional valve (port 2) to the load (port 1) while the pilot to open modulating element controls flow from port 1 to port 2. Pilot pressure at port 3 determines the flow setting. Backpressure at port 2 does not affect the flow setting because the spring chamber references the vent (port 4).
Note: Data may vary by configuration. See CONFIGURATION section.
| Cavity | T-22A |
| Series | 2 |
| Capacity | 30 gpm |
| Capacity (metric) | 120 L/min. |
| Maximum Operating Pressure | 5000 psi |
| Maximum Operating Pressure (metric) | 350 bar |
| Maximum Valve Leakage at Reseat | See Technical Features |
| Check Cracking Pressure | 25 psi |
| Check Cracking Pressure (metric) | 1,7 bar |
| 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 |
| Seal kit – Cartridge | Viton: 990022006 |
| Model Weight | 0.73 lb. |
| Model Weight (metric) | 0.33 kg. |
Control
| X | Not Adjustable |
Minimum Control Pressure
| E | 75 psi (5 bar) |
| G | 150 psi (10,5 bar) |
| H | 200 psi (14 bar) |
| I | 300 psi (20 bar) |
| K | 450 psi (33 bar) |
| M | 525 psi (36,7 bar) |
Seal Material
| N | Buna-N |
| V | Viton |
Material/Coating
| /AP | Stainless Steel, Passivated |
| /LH | Mild Steel, Zinc-Nickel |
