Maxton UC1A - HYDRAULIC CONTROLLER UC4 MR B44; Introduction; Specifications; Standard Features

1728 Orbit Way - Minden, Nevada 89423 P: 775-782-1700 F: 775-782-1701 info@maxtonvalve.com www.maxtonvalve.com
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Jack Tank
Pump
Introduction
The UC4MR hydraulic controller was designed to meet changing application trends. The greater variation in temperature
and pressure seen in today’s market demand much more from the valve design. The first steps of improvement are to
regulate the area of greatest variation (down high speed). The UC4MR valve will allow the user to have direct
adjustment control of loaded and unloaded down main speeds without applying a load.
Specifications
Maximum Flow 185 gpm (700 I/min)
Operating Pressure
Minimum 175 psi (12 bar)
Maximum 800 psi (55 bar)
Note:
Consult factory when applications exceed pressure ratio
over 2.5 to 1, example (Max. / Min. :280 / 100 )
Line Connections
Jack, Tank Port 2” NPT
Pump Port (flange) 2” NPT or Grooved
Gauge Ports Pump Pressure: “A” Port (1/8” NPT)
System pressure: “B” Port (1/8” NPT)
Pressure Switch: “S” Port (1/8” NPT)
Operating Temperature 80°– 150° F (26°– 65° C)
Oil Type Hyd. ISO VG 32
150 SUS @ 100
° F (38° C)
Solenoid Coils Encapsulated CSA / UL Listed
Overall Dimensions
Width 8 7/16 inches (214mm) Height 10 1/2 inches (268mm)
Depth 9 3/16 inches (233mm) Weight 27 lbs. (12.2kg)
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*Refer to flow Charts (pg.6)
** To insure proper valve selection please return a completed copy of our Job Specification Sheet (pg. 3) to
Maxton.
Standard Features
 Unit body construction.
 Steel sleeve inserts in valve body.
 Feed back control for stall free operation.
 Individualized adjustments.
 Regulated down speed control.
 Integrated relief valve.
 Push button manual lowering.
 Low pressure cutoff manual lowering.
 High efficiency solenoids.
 115 VAC / 24 VDC solenoid coils.
 Factory tested prior to shipping.
 2 year limited warranty.
Optional Features
 Explosion Proof Coil Cover
 Thread to Grooved Adapters (2”) 
 Low Pressure Switch 
 Tank Discharge Filter
 1/8” or 1/4” Ball Valves 
 Quick Disconnect Coupling or Nipple Kit 
Solenoid Coils 
 12 VDC – 120 VAC Dual Voltage Coils
 12 VDC Coils
 230 VAC Coils
 115 VDC Coils
 185 VAC Coils
HYDRAULIC CONTROLLER UC4MR B44
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DL
D
B
A
BPS
R
DSR
ML