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VMSP-78 04.75.10 - X - 99 - Z

Priority unloading pilot operated

Special cavity, 308

Flow is blocked from 1 to 2 until pressure increases to meet the

selected valve setting, lifting the small, pilot-stage poppet from its

seat. This action exhausts oil above the main-stage piston (spool type),

allowing it to shift fully and unload flow from 1 through 2 with minimal

pressure drop. Similarly, when remote pilot pressure at 3 exceeds the

pressure setting, a secondary piston lifts the pilot-stage poppet from

its seat, again exhausting fluid from 1 through 2. The spring chamber

is drained to tank at 4. Any pressure at 4 will be additive to the valve

setting.

Technical data

Description

Performance

RE 18318-17/06.10

Replaces: RE 00162-02/01.06

Max. operating pressure

port 1-3

bar (psi) 350 (5000)

Max. pressure admitted

port 2

bar (psi) 210 (3000)

Flow range l/min. (gpm)

5-30 (1.3-8)

Max. internal

leakage (*)

/min. (cu.in./min.)

25 (1.5)

Fluid temperature range °C (°F) -30 to 100 (-22 to 212)

Installation torque Nm (ft-lbs) 41-47 (30-35)

Weight kg (lbs) 0.28 (0.62)

Special cavity

308

see data sheet RE 18325-75

Seal kit (**)

code

material no.

RG0308010520100

R930005801

Fluids

Mineral-based or synthetics

with lubricating properties at

viscosities of 10 to 500 mm

/s (cSt)

Filtration

Nominal value max. 10µm (NAS 8)

ISO 4406 19/17/14

Installation No restrictions

Other general technical data See data sheet RE 18350-50

(*) Measured at 200 bar (2900 psi)

(**) Only external seals for 10 valves

Setting is performed pressurizing “X” port.

Type Material number

04751003991000D R930005772

04751003992000D R930005779

04751003993500C R930005780

Type Material number

2/2 Bosch Rexroth Oil Control S.p.A.

047510X99Z RE 18318-17/06.10

information set forth in it, are the exclusive property of Bosch Rexroth

Oil Control S.p.a.. It may not be reproduced or given to third parties

without its consent.

The data specified above only serve to describe the product. No

statements concerning a certain condition or suitability for a certain

application can be derived from our information. The information given

does not release the user from the obligation of own judgment and

verification. It must be remembered that our products are subject to a

natural process of wear and aging.

Subject to change.

Bosch Rexroth Oil Control S.p.A.

Via Leonardo da Vinci 5

P.O. Box no. 5

41015 Nonantola – Modena, Italy

Tel. +39 059 887 611

Fax +39 059 547 848

cartridges@oilcontrol.com

www.boschrexroth.com

Dimensions

Ordering code

Series 0/A to L

unchanged performances and dimensions

Priority unloading, pilot operated

Version and options standard

SPRINGS

Differential unload / reload

Adj. press. range

bar (psi)

Press. increase

bar/turn

(psi/turn)

Std. setting

bar (psi)

Q=5 l/min

= 03 Re-seat at (85 ± 2.5) % of pressure setting

= 10

7-105 (100-1500) 26 (377) 70 (1000)

Special cavity, 308

= 20

90-210 (1300-3000) 31 (450) 120 (1750)

(old code cartridge style)

= 35

150-350 (2200-5000) 105 (1523) 200 (2900)

04.75.10 X 99 Z 00 *

Note: Special settings available. Contact factory

authorized representative for ordering code

OPTION

Tamper resistant cap

ordering code 11.04.23.004

Mat. no. R930001411