61 310/314 ED

1/2

61 310/314 ED

50.8

37.3

3.2

16.7

facoltativo

Attacco"T"

Ø 11.2(max)

32.5

21.4

6.3

PERFORMANCES (measured with mineral oil of viscosity 36cSt at 50°C) HYDRAULIC SYMBOLS

OPERATING PRINCIPLEMOUNTING SURFACE

— The PRM5 valve is a pilot operated pressure relief valve

made as a modular version with mounting surface

according to ISO 4401 (CETOP RP121H) standards.

— It can be assembled with all ISO 4401-05 modular valves

without the use of pipes, using suitable tie-rods or bolts.

— Versions are available for single adjustment on one

control line, or dual on two control lines and with four

different pressure adjustment ranges.

— This valve is used as a hydraulic circuit pressure limiting

device.

— It is supplied with an hexagonal head adjustment screw

and locking nut. It is also available with knob.

ISO 4401-05-04-0-05

ETOP 4.2-4-05-350

optional

“T” port

PRM5

PILOT OPERATED

PRESSURE RELIEF VALVE

SERIES 10

MODULAR VERSION

ISO 4401-05 (CETOP 05)

p max

350 bar

Q max 120 l/min

Maximum operating pressure bar 350

Minimum controlled pressure bar see ∆p - Q diagram

Max flow l/min 120

Ambient temperature range °C -20 / +60

Fluid temperature range °C -20 / +80

Fluid viscosity range cSt 10 ÷ 400

Fluid contamination degree

According to ISO 4406:1999

class 20/18/15

Recommended viscosity cSt 25

Mass: PRM5-PT, -AT, -BT

PRM5-DT, -D

2,8

61 310/314 ED

2/2

DUPLOMATIC OLEODINAMICA S.p.A.

20015 PARABIAGO (MI)  Via M. Re Depaolini 24

Tel. +39 0331.895.111

Fax +39 0331.895.339

www.duplomatic.com  e-mail: sales.exp@duplomatic.com

PRM5

SERIES 10

REPRODUCTION IS FORBIDDEN. THE COMPANY RESERVES THE RIGHT TO APPLY ANY MODIFICATIONS.

2 - CHARACTERISTIC CURVES (

values obtained with viscosity of 36 cSt at 50°C)

dimensions in mm

, PRM5-D

1) pressure drop on

controlled lines PT,

AT, BT, DT

2) pressure drop on

free lines

1 - IDENTIFICATION CODE

DJUSTMENT

RESSURE DROPS ∆p - Q

3 - HYDRAULIC FLUIDS

Use mineral oil-based hydraulic fluids HL or HM type, according to ISO 6743-4. For these fluids, use NBR seals (code N). For fluids HFDR type

(phosphate esters) use FPM seals (code V). For the use of other kinds of fluid such as HFA, HFB, HFC, please consult our technical

department. Using fluids at temperatures higher than 80 °C causes a faster degradation of the fluid and of the seals characteristics. The fluid

must be preserved in its physical and chemical characteristics.

4 - OVERALL AND MOUNTING DIMENSIONS

1 Socket hex adjustment

screw: Hex key 4.

Rotate clockwise to increase

pressure

2 Locking nut: spanner 13

3 Mounting surface with

sealing rings:

5 OR type 2050

(12.42 x 1.78) 90 Shore

Seals:

N = NBR seals for mineral oils (standard)

V = FPM seals for special fluids

Series No. (the overall and mounting dimensions

remain unchanged from 10 to 19)

Versions:

PT: single on line P with discharge in TA

AT: single on line A with discharge in TA

BT: single on line B with discharge in TA and TB

DT: double on lines A-B with discharge in TA and TB

D: double on lines A-B with cross discharge

Pressure adjustment range:

070 = 6 ÷ 70 bar (17 bar / turn)

140 = 6 ÷ 140 bar (32 bar / turn)

210 = 6 ÷ 210 bar (47 bar / turn)

350 = 6 ÷ 350 bar (78 bar / turn)

ISO 4401-05 (CETOP 05) size

Modular version

Pilot operated pressure

relief valve

P R M 5 - / 10 /

Option:

K = Adjustment knob. Omit for adjustment with hex

socket screw (standard)

Option: W7 surface treatment.

Omit if not required (NOTE)

NOTE: Upon request we can supply these valves

completely with zinc-nickel surface treatment on the body.

Add the suffix /W7 at the end of the identification code.

K VERSION