Product Overview

The Cla-Val e-Drive-34: Actuated Hydraulic Pilot is a flexible actuator designed for controlling pressure, flow, level, or valve position via a CLA-VAL hydraulic control pilot. The combination of a CLA-VAL hydraulic pilot and the e-Drive-34 forms the PCM Series valves. This actuator is engineered to withstand challenging operating conditions, with its motor tested for millions of cycles, ensuring high reliability and durability. The e-Drive-34 can be directly interfaced with the D22 electronic valve controller or any SCADA system. With a wide voltage range of 10 to 32 VDC and a low power consumption of only 12 Watt at 16 bar, it can be autonomously powered by the CLA-VAL e-Power IP power generator. The e-Drive-34 actuated pilot precisely adjusts the control pilot to the desired set-point and is designed to handle up to 500 set-point modifications per day. CLA-VAL actuated pilots communicate via a 4-20 mA signal or Modbus RTU 485 to adjust the valve set-point through any SCADA system and/or a D22 electronic valve controller, eliminating the need for a computer in the field. For optimal performance, the e-Drive-34 is factory calibrated with maximum rotation speeds, security limiters, and signal loss defaults.

Key Benefits

• Versatile control of pressure, flow, level, or valve position.
• Precise pressure or flow modulation with a high degree of accuracy.
• Flexible remote set-point adjustment via local controller and/or SCADA system.
• Robust design with IP68 protection and stainless steel construction for product longevity.
• Economical with low power consumption of only 12 Watt at 16 bar.
• Ensures reliability and durability with a motor tested for millions of cycles.
• Can be autonomously powered by the CLA-VAL e-Power IP power generator.
• Handles up to 500 set-point modifications per day.
• Hydraulic backup maintains the last commanded set-point in case of power failure, ensuring system stability and integrity.

Applications

• Downstream pressure control (with CRD-34 pilot, e.g., Series D22 90-01 or PCM 90-01).
• Upstream pressure control (with CRL-34 pilot, e.g., Series D22 50-01 or PCM 50-01).
• Valve positioning (with CPC-34 pilot, e.g., Series D22 138-01 or CPC 138-01).
• Flow control (with CDHS-34 pilot, e.g., Series D22 40-01 or PCM 40-01).
• Systems requiring remote set-point management with hydraulic backup.

Features & Construction

• Actuated hydraulic pilot.
• Directly interfaces with D22 electronic valve controller or any SCADA system.
• Communicates via 4-20 mA signal or Modbus RTU 485.
• Pilot interfaces include: CRD-34, CRL-34, CPC-34, CDHS-34.
• Designed to sense pressure variations directly on the diaphragm, absorbing fast or unusual network reactions.

Technical Specifications

Specification	Value
Power Supply Voltage Range	10 VDC to 32 VDC
Nominal Speed @ 24 VDC	16 rpm
Nominal Speed @ 12 VDC	8 rpm
Max. Current (actuating mode) @ 16 bar	500 mA
Max. Current (actuating mode) @ 21 bar	800 mA
Average Nominal Current (unactuating mode)	350 mA
Stand-by Current (unactuating mode)	30 mA
Power Supply Protection	Max 32 VDC overvoltage, Max. 1 A couple limitation, Polarity inversion & short-circuit, Automatic shut-down at 80°C internal
Electrical Connection Cable	1x 10 meter shielded cable (12-wire), Wire section: 0.22 mm², Cable diameter: 6.9 mm
Electrical Connection Connectors	1x 6-pin Souriau connector for Modbus communication, 1x 3-pin Lumberg connector for computer connection/maintenance
Control Inputs	4-20 mA (2 wires), 2x dry contacts (manual operation), Modbus RTU 485 (Souriau 5-pin connector)
4-20 mA Input Protection	Max. 32 VDC over voltage, isolation (optocoupler isolation with CMR 1000 V)
Position Feedback	4-20 mA (load impedance ≤500 Ω)
Programmable Alarm Positions	2x (10-32 VDC/10-240 VAC at max. 1 A)
4-20 mA Output Protection	Max. 32 VDC overvoltage
Operating Diagnostic	Through diagnostic LED (Green/Red/Blinking)
Control Signal Loss Default Options	Hold last position, or return to 4mA or 20mA
Pressure Range	0-10 bar / 16 bar / 25 bar (dependent on associated pilot)
Operating Temperature (electronics only)	-10°C to +80°C
Environmental Protection	IP68, validated 1 month at 0.2 bar
Interface	Plug & Play, Modbus RTU 485, Optionally CLA-VAL D22 Electronic Valve Controller, Graphical software Interface compatible with Win 7 (32 & 64 bit)

Installation & Maintenance

• Easy adjustment and maintenance.
• Factory calibrated for optimal performance.
• Recommended power supply is the e-Power-IP turbine for completely autonomous systems.
• Pilot maintains last commanded set-point in event of power cut, ensuring system stability.