32 200/110 ED

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31.75

0.75

12.7

15.5

Ø7.5 (max)

30.2

40.5

RPC1

PRESSURE AND TEMPERATURE

COMPENSATED

FLOW CONTROL VALVE

SERIES 41

PERFORMANCE RATINGS (obtained with mineral oil with viscosity of 36 cSt at 50°C) HYDRAULIC SYMBOLS

OPERATING PRINCIPLE

MOUNTING INTERFACE

— The RPC1 valve is a pressure and temperature

compensated flow control valve.

— The flow is adjusted by a calibrated knob that modulates

the opening of the control gap and can be locked in any

adjustment position. Adjustment is made with three turns,

and upon request one-turn adjustment, RPC1*/M, is

available.

— It is available in seven different flow rate adjustment

ranges from 0,5 l/min up to 30 l/min.

32 200/110 ED

NOTE: The RPCED1 mounting interface, with CETOP 03

holes, must not have P and T ports or must have the 0113388

subplate (see paragraph 9)

SUBPLATE MOUNTING

ISO 6263-03 (CETOP 03)

p max

250 bar

Q max (see table of performances)

ISO 6263-03-03-*-97

(CETOP 4.5.2-2-03-250)

Maximum operating pressure

Minimum pressure difference between A and B

Check valve cracking pressure

bar

250

0,5

Maximum controlled flow rates

Minimum controlled flow rate (for 0,5-1 and 4 l/min)

Maximum flow rate in free flow direction

l/min

0,5-1-4-10-16-22-30

0,025

Ambient temperature range °C -20 / +50

Fluid temperature range °C -20 / +80

Fluid viscosity range cSt 10 ÷ 400

Fluid contamination degree

Fluid contamination degree for flows < 0,5 l/min

According to ISO 4406:1999 class 20/18/15

According to ISO 4406:1999 class 18/16/13

Recommended viscosity cSt 25

Mass kg 1,3

Number of adjustment knob turns

RPC1

RPC1-*/M

32 200/110 ED

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RPC1

SERIES 41

1 - IDENTIFICATION CODE

Seals: omit for

mineral oils

V = viton for

special fluids

Series No. (the overall and

mounting dimensions remain

unchanged from 40 to 49)

Size ISO 6263-03 (CETOP 03)

2 - CHARACTERISTIC CURVES (values obtained with viscosity of 36 cSt at 50°C)

Pressure

compensated

flow control valve

M = single-turn adjustment knob

(omit for three-turn adjustment)

6 - REVERSE FREE FLOW

The RPC1 valve, upon request, is supplied with an incorporated

check valve to allow free flow in the direction opposite to the

controlled flow, B→A.

In this case the valve code becomes RPC1-*/CT.

7 - RPC1-*/CTX

This valve is normally used for intake control and is positioned

downstream of the directional valve.

The piloting connection “P” keeps the compensator in the closed

position, thus avoiding the initial speed jump that occurs at the time

the distributor sends oil to the valve (see the application diagram,

paragraph 11).

Controlled flow

0,5 = 0,5 l/min

1 = 1 l/min 16 = 16 l/min

4 = 4 l/min 22 = 22 l/min

10 = 10 l/min 30 = 30 l/min

C = incorporated check valve

(omit if not required)

Temperature compensation

X = with speed anti-jump port P, available only in

the check valve version

(Omit if not required)

ADJUSTMENT

R P C 1 - / T / / 41 /

KNOB TURNS

PRESSURE 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. 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 - PRESSURE COMPENSATION

Two throttles in series are in the valve. The first is an opening

regulated by the knob; the second, piloted by the pressure

upstream and downstream of the first throttle, assures a constant

pressure drop across the adjustable throttle. In these conditions, the

set flow rate value stays constant within a tolerance range of ± 2%

of the maximum flow controlled by the valve for maximum pressure

variation between the intake and outlet chambers of the valve.

5 - TEMPERATURE COMPENSATION

The valve temperature compensation is obtained with the principle

of fluid passage across a thin wall orifice in which the flow rate is

not substantially influenced by the oil viscosity fluctuations. For

controlled flows of less than 0,5 l/min and with a temperature

difference of 50 °C, flow is increased by about 13% of the set flow

value. For higher flow rates, and with the same temperature

difference, the flow increase is about 4% of the maximum flow

controlled by the valve.

32 200/110 ED

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RPC1

SERIES 41

8 - RPC1-

OVERALL AND MOUNTING DIMENSIONS

FASTENING BOLTS

4 bolts M5x75

Tightening torque: 5 Nm

Mounting surface with sealing rings:

2 ORM - 0140 - 20 (14x2)

dimensions in mm

Adjustment knob.

Anticlockwise rotation to increase flow.

Indicator of knob turns

Knob locking screw

9 - RPC1-

/CTX OVERALL AND MOUNTING DIMENSIONS

FASTENING BOLTS

4 bolts M5x85

Tightening torque: 5 Nm

Subplate cod. 0113388. Mounting surface with sealing

rings: 4 OR type 2037 (9.25x1.78) - 90 Shore)

dimensions in mm

Adjustment knob.

Anticlockwise rotation to increase flow.

Indicator of knob turns

Knob locking screw

30.2

21.5

40.5

0.75

31.75

25.9

15.5

Ø7.5 (max)

12.7

Mounting surface: ISO 6263-03-03-*-97 (CETOP 4.5.2-2-03-250)

32 200/110 ED

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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

RPC1

SERIES 41

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

10 - SUBPLATES (see catalogue 51 000)

11 - APPLICATION EXAMPLES

Type

Meter-out control

Bleed-off control

Meter-in control with anti-jump

device

Type

Port dimension

PMRPC1-AI3G

with rear ports

PMRPC1-AL3G

with side ports

PMMD-AI3G

with rear ports, with user T plugged only for

valve

PMMD-AL3G RPC1-*/CTX

with side ports, with user T plugged

3/8” BSP