Marse WATER FLOW REGULATOR EWFR - Electronic Flow and Temperature Controlled Mold Cooling Systems
The WATER FLOW REGULATOR EWFR series developed by Marse is an advanced water management system designed for the electronic measurement, monitoring, and alarm-based control of water flow rate and water temperature in plastic injection molds, blow molds, and industrial process cooling circuits. Going beyond conventional mechanical WFR systems, EWFR is engineered for modern production facilities that require high process safety, traceability, and consistent quality.
EWFR systems enable independent control of each cooling line, especially in multi-cavity and multi-zone molds. If flow rate or temperature values exceed the predefined limits, the system immediately generates an alarm and warns the operator. This makes it possible to take preventive action before part defects, cycle time deviations, or mold damage occur.
Electronic Measurement and Operating Principle
In Marse EWFR systems, the transparent plastic measuring tube used in standard WFR models is replaced by a brass measuring tube with an integrated electronic flow sensor. Thanks to this sensor-based design, both flow rate and temperature values are continuously measured for each cooling circuit and displayed on the system's digital screen.
The operating principle of EWFR can be summarized as follows:
• Cooling water is routed through the EWFR body and distributed separately to each zone
• The flow sensor inside the brass measuring tube electronically measures the water flow rate
• The integrated temperature sensor monitors the return water temperature
• Measured values are displayed on the screen in real time
• If predefined threshold values are exceeded, the alarm function is activated
• When an alarm occurs, a red warning light is displayed on the screen
With this structure, the operator not only performs visual flow monitoring but also ensures that the process operates within safe limits.
Technical Specifications and Structural Details
The technical and numerical specifications of the Marse WATER FLOW REGULATOR EWFR systems listed in the catalog are presented in detail below.
Body and Mechanical Structure
Body material: PA6 reinforced with 30% glass fiber
Measuring tube: Brass pipe with integrated electronic flow sensor
Bottom body connection inserts: Brass
Sealing Elements
Seal type: Vitrile (NBR), 70 Shore hardness
O-rings in contact with water: EPDM
Measurement and Monitoring Functions
Flow measurement: Electronic sensor-based
Temperature measurement: Integrated thermometer, standard
Display: Digital screen
Alarm function: Automatic warning when flow or temperature limits are exceeded
Operating Conditions
Maximum operating limits:
8 bar at 40 °C
7 bar at 60 °C
5 bar at 80 °C
4 bar at 90 °C
Operating pressure: Compatible with standard WFR series
Zone Configuration Options
Available configurations from 1 to 12 zones
Overall Length "A" According to Number of Zones (mm)
1 zone: 73
2 zones: 126
3 zones: 179
4 zones: 231
5 zones: 284
6 zones: 339
7 zones: 392
8 zones: 444
9 zones: 497
10 zones: 552
11 zones: 607
12 zones: 659
These dimensional options allow EWFR systems to be easily integrated into both compact molds and large, multi-circuit molds.
Contribution to Process Control and Quality
Marse EWFR systems provide critical advantages in applications where mold cooling performance directly affects product quality. Thanks to electronic measurement and alarm functions:
• Flow losses in cooling circuits are detected instantly
• Blockages, hose disconnections, or valve failures are identified at an early stage
• Mold temperature distribution remains stable
• Cycle times become more consistent
• Warpage, internal stress, and surface defects are reduced
• Molds and hot-runner systems are thermally protected
These features make EWFR an indispensable piece of equipment for facilities producing high-precision technical parts.
Application Areas
Marse WATER FLOW REGULATOR EWFR systems are widely used in the following applications:
Plastic injection molds
Blow molding and stretch-blow molds
Technical plastic and automotive part production
Processes where flow and temperature traceability is mandatory
Production lines requiring high quality and process safety
Compared to manually adjusted systems, EWFR can be easily integrated into Industry 4.0-compatible production infrastructures thanks to its traceability and alarm functions.
Mechanical Durability and Industrial Design
The glass-fiber-reinforced PA6 body structure makes EWFR systems highly resistant to mechanical impacts and temperature variations. Brass measuring tubes and connection components offer excellent wear resistance during long-term operation. The protected placement of electronic sensors inside the housing extends service life and reduces maintenance requirements.
Industrial Advantages and Operational Benefits
The main advantages provided by Marse EWFR Water Flow Regulator systems include:
Maximum process control through electronic flow and temperature measurement
Alarm-based early warning system
More stable cycle times and consistent product quality
Extended mold and equipment lifetime
Minimized operator errors
High repeatability and production traceability
With these features, the Marse WATER FLOW REGULATOR EWFR goes beyond conventional water distribution solutions and is positioned as a professional process control device that actively monitors and manages mold cooling systems.
