Counterbalance valves with pilot assist are meant to control an overrunning load. The check valve allows free flow from the directional valve (port 2) to the load (port 1) while a direct-acting, pilot-assisted relief valve controls flow from port 1 to port 2. Pilot assist at port 3 lowers the effective setting of the relief valve at a rate determined by the pilot ratio.
Technical Details
| Parameter |
Value |
| Cavity |
T-2A |
| Series |
2 |
| Capacity |
30 gpm |
| Pilot Ratio |
3:1 |
| Maximum Recommended Load Pressure at Maximum Setting |
3075 psi |
| Maximum Setting |
4000 psi |
| Pilot Configuration |
Bleed through |
| Factory Pressure Settings Established at |
2 in³/min. |
| Maximum Valve Leakage at Reseat |
5 drops/min. |
| Adjustment - No. of CCW Turns from Min. to Max. Setting |
3.75 |
| Operating Characteristic |
Standard |
| Reseat |
>85% of setting |
| Valve Hex Size |
1 1/8 in. |
| Valve Installation Torque |
45 - 50 lbf ft |
| Adjustment Screw Internal Hex Size |
5/32 in. |
| Locknut Hex Size |
9/16 in. |
| Locknut Torque |
80 - 90 lbf in. |
| Model Weight |
0.63 lb. |
