405 pcs Electric Actuators for Reverse Osmosis Water Treatment Plant in Malaysia
Project Overview
A large-scale reverse osmosis facility in Malaysia required reliable, automated flow control across its entire treatment process.
Background
The facility operates a reverse osmosis (RO) membrane system to purify water for municipal and industrial supply. With hundreds of valve points across pre-treatment, RO, and post-treatment stages, manual operation was inefficient and prone to human error.
The project demanded a comprehensive actuation solution — combining fast open/close response for isolation valves with precise modulating control for process regulation.
Project Specifications
| Project Location | Malaysia |
| Facility Type | Reverse Osmosis Water Treatment Plant |
| Total Units | 405 pcs electric actuated ball valves |
| On/Off Units | 285 pcs — 20Nm actuators + PN16 PVC ball valve |
| Modulating Units | 120 pcs — 50Nm actuators + PN16 PVC ball valve |
| Valve Type | PVC ball valve, PN16 rated |
| Control Mode | On/Off isolation + 4–20mA modulating control |
Our Solution
MTD delivered a dual-mode actuation strategy — combining on/off isolation with modulating flow control — to cover every valve point in the RO plant.
On/Off Isolation Control
285 units of 20Nm electric actuators paired with PN16 PVC ball valves provide fast, reliable open/close operation for isolation and bypass applications across the pre-treatment and post-treatment stages.
285 pcs 20Nm On/OffModulating Flow Control
120 units of 50Nm modulating actuators with 4–20mA signal input deliver precise positioning for the RO membrane feed pressure and permeate regulation, optimizing recovery rate and membrane life.
120 pcs 50Nm 4–20mAProducts Used
Two actuator configurations were deployed to match the distinct control requirements at each valve point.
20Nm Electric Actuator + PN16 PVC Ball Valve
- Torque20 Nm
- ControlOn/Off (2-wire)
- ValvePVC Ball Valve, PN16
- Quantity285 pcs
- VoltageAC 220V / DC 24V
50Nm Modulating Electric Actuator + PN16 PVC Ball Valve
- Torque50 Nm
- ControlModulating (4–20mA)
- ValvePVC Ball Valve, PN16
- Quantity120 pcs
- VoltageAC 220V / DC 24V
Results & Benefits
The complete MTD actuation package delivered measurable improvements across the facility’s operations.
Full Plant Automation
All 405 valve points are now remotely controlled, eliminating manual wheel operation and reducing operator workload.
Optimized RO Performance
Modulating actuators maintain precise feed pressure, improving membrane recovery rate and extending membrane service life.
Reduced Downtime
Electric actuators with PVC valves provide chemical-resistant, maintenance-free operation in the corrosive RO environment.
“The electric actuated valve plays an important role in water applications. These valves link to treatment plants or filtering systems. Electric actuators are essential to ensure the flow management of water or other media in the plant and greatly improved the efficiency.”
— Project Engineering TeamNeed Electric Actuators for Your Water Project?
From RO plants to wastewater treatment, MTD provides end-to-end valve automation solutions with electric actuators and motorized ball valves.