Manual hydraulic pump panel manufactured to MIL-P-18111P
This series of Unitork Hydraulic Actuators is manufactured by Tri-Tec Company to fill the need for MIL-P-18111P activated valves. They have been used extensively on the MHC-51 mine hunter program, the DDG and aircraft carriers. They have been mounted on MIL-V-1189 gate valves throughout the U.S. Navy. They are operated manually by the de-clutchable handwheel.
Hydraulic motor driven multi-turn actuator
Silicone bronze housing
Integral water-tight limit switch compartment
Choice of 3 limit switch options
Choice of 2 limit switch drive ratios
Manganese bronze drive nuts
4 each 250 volt limit switch train
6 each 250 volt limit switch train
4 each 480 volt limit switch train
Standard 8 bolt mounting
Adapts from 2-1/2 through 12 inch 1189
Unitork Hydraulic Valve Actuators are designed to incorporate all the essential features to provide remote operation of valves, for both multi-turn and quarter turn applications. Actuators conform to the appropriate MIL Spec. and the quality control procedures are in accordance with MIL-I-45208. Model MT Actuators are for multi-turn valves (Gate, Globe, etc.) and Model QT Actuators are for 90 degree turn valves (Butterfly, Ball, etc.)
The actuator consists of a hydraulic motor in accordance with MIL-P-18111A, worm and worm wheel drive gear, machine drive bushing with thrust bearings, a manual handwheel for local operation, 4 or 6 independently adjustable limit switches, local valve position indicator, and stem protection tube.
Shock & Vibration Qualified
MIL-S-901D Grade A, Class 1, Type B
MIL-STD-167-1, Type 1
Torque -- 2000 in/lbs
Speed -- 24 RPM
Supply Pressure -- 750 ils/sq. in.
Standard 8 bolt mounting
Supply Flow -- 1.1 GPM (2 cu.in./rev)
Hydraulic Control Panel
Tri-Tec Company manufactures control panels to operate the Model MT and QT Unitork Valve Actuators. The panel consists of an assembly including the hydraulic reservoir with sight gauge, fill connection and drain valve, shutoff valves with the 4 way diverter, and a pressure gauge. The panels can be configured to operate one of 2 valves from a single pump and reservoir. Panels are fully qualified to MIL-S-901C and vibration to MIL-STD-167.
The actuator consists of a hydraulic motor in accordance with MIL-P-18111A, a self-locking worm and worm wheel drive gear, a manual handwheel for local operation, 4 or 6 independently adjustable limit switches and adjustable end stops the prevent over travel.