Marse WATER FLOW REGULATOR (WFR) - Precision Water Flow Control System for Mold and Process Cooling Circuits
Developed by Marse, the WATER FLOW REGULATOR (WFR) series is a professional water distribution and regulation system designed to independently and precisely control the water flow in each cooling line of plastic injection molds, blow molds, extrusion molds, and industrial process cooling circuits. WFR systems ensure balanced operation of mold cooling channels, helping to shorten cycle times, improve part quality, and increase overall energy efficiency.
The WFR series plays a critical role especially in multi-circuit molds where each cooling line is subject to different thermal loads. By allowing independent adjustment for each zone, temperature differences within the mold are minimized, resulting in homogeneous and controlled cooling.
Operating Principle and Flow Control Concept
Marse WFR Water Flow Regulator systems operate using manual adjustment valves and visual flow indicators installed on each individual water line. Cooling water entering the system is distributed through the manifold block into multiple zones, with the flow rate of each zone adjusted independently.
The water flow through transparent polyamide measuring tubes can be visually monitored in real time. This allows the operator to instantly check and fine-tune the flow rate of every cooling circuit connected to the mold. Integrated thermometers enable monitoring of return water temperature, providing additional insight into cooling performance.
This design allows for:
Independent and precise flow adjustment for each cooling circuit
Balanced temperature distribution within the mold
Shorter cycle times
Reduced warpage, internal stress, and surface defects
Optimized energy and water consumption
Model Options - ZS and ZR Configurations
The Marse WFR series is available in two different connection configurations:
ZS Model
Bottom connections are designed for Ø12 mm hose fittings.
Typically used in plastic injection mold applications where quick hose connections are preferred.
ZR Model
Bottom connections are 3/8 inch threaded socket type.
Suitable for installations with rigid piping and metal plumbing systems.
Both models share the same technical body design and flow control performance. The choice of connection type depends solely on the plant's infrastructure.
Technical Specifications and Numerical Data
The main technical and numerical characteristics of the Marse WFR models listed in the catalog are detailed below.
Body and construction materials
Flow measuring tubes: Polyamide 12, standard
Body: PA6 reinforced with 30 percent glass fiber
Regulation valves: Brass
Bottom connection inserts: Brass
Sealing elements
Viton (NBR) seals with 70 Shore hardness
O-rings in contact with water: EPDM
Measurement and monitoring
Individual flow indicators for each line
Integrated thermometer, standard
Visual and instantaneous flow monitoring
Maximum operating pressure versus temperature
8 bar at 40 °C
7 bar at 60 °C
5 bar at 80 °C
4 bar at 90 °C
Connection types
ZS model: Ø12 mm hose connection
ZR model: 3/8 inch threaded connection
Number of zones
Configurations available from 1 to 12 zones
Overall length "A" according to number of zones, in 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 WFR systems to be easily adapted to both small molds and large multi-circuit molds.
Mechanical Design and Durability
WFR Water Flow Regulator systems are designed to withstand the demanding conditions of industrial mold environments. The glass-fiber-reinforced body provides high resistance to mechanical impacts and temperature variations. Brass valves and connection components ensure long-term durability and resistance to wear.
Transparent measuring tubes allow quick inspection and easy maintenance. The use of EPDM and Viton sealing elements guarantees reliable sealing even during prolonged contact with water.
Application Areas
Marse WFR Water Flow Regulator systems are widely used in the following applications:
Plastic injection molds
Blow molding molds
Extrusion and thermoforming molds
Industrial cooling and temperature control circuits
Machine-integrated multi-line water distribution systems
In applications where different mold zones require different cooling intensities, WFR systems contribute directly to improved process stability.
Industrial Advantages and Process Benefits
The main advantages provided by Marse WFR systems include:
Independent and precise water flow control for each zone
More uniform mold temperature and shorter cycle times
Improved repeatability of part quality
Optimized energy and water consumption
Easy installation and intuitive operation
Low maintenance requirements and long service life
With these features, the Marse WATER FLOW REGULATOR (WFR) is a strategic piece of equipment that directly enhances mold cooling performance, increases production efficiency, and improves overall process reliability.
