The model is РС25.20. It is a block consisting of separate sections of different purpose, assembled with tie rods (bolts).
Depending on the purpose of the sections, it has the following major modifications (as applied to loaders ОАО "Амкодор" и ЗАО "Орел-Погрузчик").
GENERAL PRODUCT INFORMATION
Manual valve-operated sectional spool valve can have different versions depending on the number and types of sections.
The execution of the hydrodistributor is determined by its full symbol.
In the symbol of the hydraulic distributor, the designation of the sections is indicated in the order of their installation, starting with the pressure one.
When installing several identical working sections in a row, before the designation of sections a number indicates their number.
The symbol for sectional hydraulic distributors is constructed according to the following scheme:
An example of a symbol for a hydraulic distributor, consisting of a pressure section 20. two operating sections 01, one intermediate section 10.4, one working section 07 and a discharge section 30: a hydraulic distributor РС25.20-20-2x01-10.4-07-30 02.
Designation
| № |
Section type and characteristics |
Section legend |
| 1 |
Pressure head, with hydrovalves: |
|
| |
reverse and safety indirect action |
20 |
| |
reverse |
20.1 |
| |
reverse and safety |
20.2 |
| |
remote control |
20.3 |
| 2 |
Working, three-position with two bolted outlets, the hydroline from the pump is connected to the tank at the neutral position of the spool: |
|
| а) |
the spool has an automatic fixation in the neutral position and spring return from the working positions: |
|
| |
without safety valve block |
01 |
| |
with safety hydraulic valve block |
05 |
| |
with the block of safety and reverse hydraulic valves |
05.4 |
| |
with taps to control hydraulic brakes |
06 |
| |
with taps to control hydraulic brakes |
|
| |
and safety valve block |
07 |
| b) |
the spool has a forced fixation in all three positions: |
|
| |
without safety valve block |
01.1 |
| |
with blocks of safety hydraulic valves |
05.1 |
| |
with taps to control hydraulic brakes |
06.1 |
| |
with taps to control hydraulic brakes |
|
| |
and safety valve block |
07.1 |
| 3 |
Working, four-position with forced fixation of the spool in all four positions |
02.1 |
| 4 |
Intermediate: |
|
| |
with reverse hydrovalve for alternately performing two operations |
10.2 |
| |
with reverse hydrovalve to combine the two streams |
10.3 |
| |
with three inverse hydraulic valves |
10.4 |
| 5 |
Drain: |
|
| |
basic modification |
30 |
| |
for connecting two control valves in series |
30.1 |
