CATALOGUE release 8.7

Products designed for industrial applications.

General terms and conditions for sale are available on

www.camozzi.com.

Series LRPA4 servo valves - Pressure control

CATALOGUE

/15.25.01

Release 8.7

CONTROL >

CONTROL

Analogic proportional servo valves

Pressure control - Series LRPA4

3/3-way servo valves for the pressure control (Ø 4-6 mm)

LRPA4 proportional servo valves are valves for the high precision pressure control with

integrated closed loop circuit. This is a 3/3-way valve, based on a patented rotating spool

system with electronic control of the position, a pressure sensor and an electronic PID-

control board.

The electronic board is directly integrated

in the valve body. The LRPA valve,

which is available in the version using an

external pressure transducer, is suitable for

applications with large distances between

valve and volume to be adjusted. Besides

this, the valve can also be used with other

sensors detecting different physical values

such as force, speed, torque, etc. to obtain

a feedback signal.

Closed loop control circuit

Rotating spool with a

metal to metal seal

Feedback with internal/

external pressure sensor

Integrated PID control

GENERAL DATA

Power supply

24 V DC +/- 10%, Ripple max. 0.5 V, max. 0.8 A

Input specified value

0-10 V DC 100 kohm; 0-20 mA 500 ohm; 4-20 mA 500 ohm

Output “in-position” signal

“LIMIT ERROR”: open-collector to GND, max. 20 mA, no protection against the overload

Output “feedback” signal

0-10 V DC, max 10 mA

Repeatability

< 0.03 % FS

Accuracy

< 0.1% FS related to sensor output signal

External sensor power supply

24 V DC, max. 100 mA

“Feedback” signal

0- 10 V 100 kohm; 0-20 mA 500 ohm; 4-20 mA 625 ohm

Flow rate at 6 bar ΔP 1 bar

300 Nl/min (LRPA4-34)

450 Nl/min (LRPA4-36)

Temperature range

0 ÷ 50°C

Relative humidity of air

max. 90%

Weight

approx. 1 Kg

Medium

filtered compressed air, unlubricated, according to ISO 8573-1 class 3.4.3, inert gas

Linearity

<+/- 0.01 %

Switching time (working pressure of 6 bar)

without load - LRPA4-34

without load - LRPA4-36

with load of 1000 cm³ - LRPA434

with load of 1000 cm³ - LRPA436

2.5 ÷ 3 bar 2.5 ÷ 2 bar 2.5 ÷ 5 bar

8 13 18

7 9 12

50 100 240

35 65 145

Electrical connection

male connector M16 7 poles (version with internal sensor)

female connector M16 4 poles (to connect the external transducer)

Running out of stock