Product Overview
Cartridge
Description
3:1 Pilot Ratio, Vented Counterbalance Valve - Atmospherically Referenced
Specifications
Cavity: T-19ASeries: 4Capacity: 120 gpmPilot Ratio: 3:1Maximum Recommended Load Pressure at Maximum Setting: 3075 psiMaximum Setting: 4000 psiFactory Pressure Settings Established at: 2 in³/min.Maximum Valve Leakage at Reseat: 5 drops/min.Check Cracking Pressure: 20 psiAdjustment - No. of CCW Turns from Min. to Max. Setting: 5Operating Characteristic: StandardReseat: >85% of settingValve Hex Size: 1 5/8 in.Valve Installation Torque: 350 - 375 lbf ftAdjustment Screw Internal Hex Size: 5/32 in.Locknut Hex Size: 9/16 in.Locknut Torque: 80 - 90 lbf in.Model Weight: 3.44 lb.Seal kit - Cartridge Buna: 990119007Seal kit - Cartridge Polyurethane: 990119002Seal kit - Cartridge Viton: 990119006
Features
-With vented valves, a lower pilot ratio may be required to achieve machine stability -compared to non-vented valves.
-Three-port vented valves are atmospherically referenced and considered problem solvers for existing circuits using non-vented valves. Over time, the vented valves may leak externally or allow moisture into the spring chamber. Four-port vented counterbalance valves are recommended for new applications.
-All 3-port counterbalance, load control, and pilot-to-open check cartridges are physically interchangeable (i.e. same flow path, same cavity for a given frame size).
-Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.
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