ACU20PCD Series

The ACU20PCD dual-valve pressure controller integrates two solenoid valves: the inlet valve introduces process gas into the chamber to maintain pressure in the sealed space, while the relief valve automatically opens when the pressure exceeds the set limit to release excess pressure, thereby rapidly and precisely stabilizing the pressure and minimizing gas waste.

Category:

Pressure Controller

Product attachment:

ACU20PCD Dual-Valve Pressure Controller.pdf

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I. Product Overview

The ACU20PCD comes standard with a pressure sensor and a digital circuit board, delivering high-precision, fast-responding, and reliable pressure control; the PC digital board incorporates all functions required for pressure regulation. In addition to the standard RS485 output signal, the ACU20PCD also features analog input/output signals, enabling precise control of the entire process simply by adjusting the setpoint. A touch-screen display further enhances ease of operation. The ACU20PCD dual-valve pressure controller can be equipped with either an integral control valve or a split-type control valve. It is a proportional solenoid-controlled valve that offers ultra-fast response and smooth control characteristics. We offer various series of control valves tailored to specific application areas: standard direct-operated valves for general applications, pilot-operated valves for high-flow applications, and dual-valve configurations for pressure stabilization and relief applications.

II. Product Applications

Application areas: semiconductor manufacturing, scientific research and experimentation, biopharmaceuticals, energy and chemical industries, leak testing, fuel cells, vacuum coating, and process control, among others.

III. Product Specifications

Series	ACU20PCD						ACU20PCDR
Model	LC	LM	MC	Miss	British Columbia	BM	British Columbia	BM
Preheating time	Negligible
Accuracy	±0.5% F.S
Repeatability	≤0.1%
Working differential pressure	0.05–0.5 MPa (customizable upon request)
Sensor response time	0.2s
Range ratio	20:1	50 to 1	20:1	50 to 1	20:1	50 to 1	20:1	50 to 1
Control stability	≤±0.05% F.S (measurement conditions: 1 L/min N2)
Analog quantity	0–5 V, 4–20 mA
Digital quantity	RS232/485, MODBUS protocol
Power supply	24VDC
Operating temperature	-10~+70℃
Temperature sensitivity	0.1%FS/°C
Directional Influence Degree (90° Change)	<0.03 kPa (absolute pressure / gauge pressure sensor)
	<0.6 kPa (differential pressure sensor)
Electrical Connection	DB9 pin
Protection rating	IP40
Leak rate	1 times 10 ^-9 Pa m³/s
Valve	Valve normally closed	/	Valve normally closed	/	Valve normally closed	/	Valve normally closed	/
Base material	Stainless steel
Sealing material	Fluororubber, nitrile rubber, EPDM, perfluoroether
Body thread	G3/8 internal thread				G1/2 internal thread
Joint	Ferrules, ferrules with a tower-shaped design, quick-connect fittings, VCR fittings, flanges, and more