Cavity T-18A
Series 4
Capacity 200 gpm
Factory Pressure Settings Established at 4 gpm
Maximum Operating Pressure 5000 psi
Maximum Valve Leakage at Reseat 10 drops/min.
Response Time - Typical 2 ms
Reseat >90% of setting
Adjustment - No. of CW Turns from Min. to Max. setting 6
Valve Hex Size 1 5/8 in.
Valve Installation Torque 350 - 375 lbf ft
<Cavity T-18A
Series 4
Capacity 200 gpm
Factory Pressure Settings Established at 4 gpm
Maximum Operating Pressure 5000 psi
Maximum Valve Leakage at Reseat 10 drops/min.
Response Time - Typical 2 ms
Reseat >90% of setting
Adjustment - No. of CW Turns from Min. to Max. setting 6
Valve Hex Size 1 5/8 in.
Valve Installation Torque 350 - 375 lbf ft
Adjustment Screw Internal Hex Size 5/32 in.
Locknut Hex Size 9/16 in.
Locknut Torque 80 - 90 lbf in.
Model Weight 3.30 lb.
Direct-acting relief cartridges are normally closed, pressure-limiting valves used to protect hydraulic components from pressure transients. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to limit the pressure rise. These valves are smooth and quiet, essentially zero leak, dirt tolerant, immune to silting and are very fast.
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