MTS Series 505 SilentFlo Hydraulic Power Unit Model 505-180 - Manual (Page 50)

Model 505.60 - 505.180 SilentFlo™ HPU 50
Model 505.60—505.180 HPU Electrical, Hydraulic,
Installation
Note For hydraulic connections to air-cooled units, refer to the Air-Cooler to
SilentFlo HPU Integration Product Information manual (MTS part number
100-135-073).
Each port is labeled on the manifold. Take care to identify and correctly
make these connections. Failure to make proper connection could lead
to water in the hydraulic fluid, hydraulic fluid in the cooling water, or
pressurization of low pressure lines.
The HPU requires connection to a suitable water supply to cool the
hydraulic fluid. The differential pressure required between the HPU
water inlet and outlet connections is 0.2–0.3 MPa (30–45 psi). The
maximum allowable water inlet pressure is 0.8 MPa (120 psi).
A. Connect the hydraulic pressure and drain lines to the hydraulic fluid
distribution system or directly to a hydraulic device. Use hydraulic line
or hose that is rated to handle the maximum hydraulic pressure of the
HPU.
Note If check valves are installed on the pressure or return ports, an extension
tube might be required on the drain port to aid in final connection to the
system drain line.
B. An appropriate shutoff valve should be installed between the water
source and HPU.
C. Connect the water supply to the HPU Water In port. Connect the
Water Out port to your drain line.
505.60/.90 505.120/.180
2 inch Female
NPT Water In
2 inch Female
NPT Water In
2 inch SAE Code
61 Pressure
2 inch SAE
Code 61 Return
-16 JIC Drain
1-1/2 inch Female
NPT Water In
2 inch SAE Code
61 Return
1-1/2 inch Female
NPT Water Out
2 inch SAE
Code 61
Pressure
-16 JIC
Drain