MTS Series 505 SilentFlo Hydraulic Power Unit Model 505-30 - Manual (Page 31)

505.20/.30 HPU Connections
Model 505.20 - 505.30 SilentFlo™ HPU Installation 31
Installation
Contents
505.20/.30 HPU Connections 31
Position the 505.20/.30 HPU 34
Testing the 505.20/.30 HPU 34
Precharging the Surge Suppressor Accumulator 35
505.20/.30 HPU Connections
Connecting the water
lines
For the purpose of cooling the hydraulic fluid, you must connect the HPU to a
water supply capable of maintaining the water flow rate as listed in the following
table.
The water supply must also be capable of maintaining water flow at a rate listed
in the following table.
The water supply must be equipped with an appropriate shutoff valve.
The differential pressure required between the HPU water inlet and outlet
connections is 0.24–0.34 MPa (35–50 psi).
The maximum allowable water inlet pressure is 0.83 MPa (120 psi).
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).
To Connect the HPU to a
water supply
1. Connect the water supply to the HPU Water In port.
2. Connect the Water Out port to your drain/return line.
3. Adjust the water regulating valve to obtain the flow required by your water
temperature.
Water Inlet Temperature Model 505.20 Model 505.30
15.5°C (60°F) 23.4 L/m (6.26 gpm) 35.2 L/m (9.3 gpm)
21.1°C (70°F) 30.2 L/m (8.06 gpm) 45.4 L/m (12 gpm)
26.7°C (80°F) 42.7 L/m (11.3 gpm) 64.7 L/m (17.1 gpm
32.2°C (90°F) 60.4 L/m (16 gpm) 91.2 L/m (24 gpm)