Make Every Pellet Count
Published

Flow Controller Series Updated

A new control valve for more precise management of the flow rate is one update to the flow controller line Wittmann Battenfeld started its business with more than 40 years and 500,000 units ago.

Share

Wittmann Battenfeld (U.S. office Torrington, Conn.) has updated it Series 110 and 310 flow controllers, keeping proven features borne out over 40-plus decades in the field and adding new ones. Used for distributing cooling water into molds and specific areas inside injection molding machines, such as the feed zone, or for the oil-cooling system in hydraulic machines, the 101 and 301 flow controllers will retain the proven pipe cleaning method, which can be done without removing the pipe through the top part of the housing. Wittmann notes that replacing the O-ring by lifting the pipe out of the bracket and then pulling it through the housing is still possible.

New to the product is a highly precise control valve for accurate manipulation of the flow rate. The valve disk is double sealed towards the spindle, and its axial movement vs. radial movement marks a shift from previous designs.

Wittmann says these innovation reduce wear for the O-rings, extending their service life. Made from EPDM, the O-rings also provide high levels of chemical and heat resistance. As in previous models, the thermometer’s sensor tube is situated directly in the return water, giving instantaneous readouts of temperature fluctuations. To keep the pressure drop inside the flow controller to a minimum, the cross-sections have been made as large as possible.

Options Available

Additional valves are also offered for the new 110 and 310 series, including the central shut-off or Z-valve for central blocking of the water supply to several circuits in the event of interruptions in the injection molding cycle. Single shut-off valves or E-valves are available as well, which are used to interrupt the cooling process in individual mold circuits by cutting off the cooling water flow. E-valves are normally used in combination with temperature sensors monitored by the machine’s control. This allows temperature control of individual mold cooling circuits via cooling pulses. The optional blow-out valve has an additional compressed air connection and in conjunction with the Z-valve allows emptying of the mold circuits.

The Series 110 works with open and closed cooling circuits. Flow volume is indicated in accordance with the float measuring principle: a cone is lifted by the water flowing in the return of the mold circuit. Flow range per circuit ist he standard  0 to 10 l/min. Mold connections with a 12-mm brass socket for 3/8-in. hoses are standard, with a threaded connection with a G 3/8-in. brass threaded sleeve available on request. There are also options for threaded 14-mm brass socket for ½-in. hose, or a threaded 20-mm brass socket for ¾-in. hose.

The Series 310 flow regulators for large injection and blow molding machines features a low pressure drop to run the highest flow volumes. The special design of the regulating valves reportedly results in accurate reproduction of cooling water volume and temperature in the different mold circuits and can also be achieved for low flow volumes.

Standard flow rates range from 0–30 l/min, with  G 3/8-in. brass threaded sleeve mold connections. A threaded 14-mm brass socket for ½-in. hose, or a threaded 20-mm brass socket for 3/4-in. hose is optional.

Wittmann Battenfeld flow controller

Wittmann Battenfeld’s flow controllers feature an updated control valve with a double-sealed valve disk.

Shuttle Mold System
Plastics Recycling Latam
Windmoeller
NPE2024: The Plastics Show
mold, mould track, digital tracking, molding
structural foam molding chemical foaming agents
Uway LLC
Insert molding automation
New Tinius Olsen VectorExtensometer testing
AM Workshop
Konica Minolta CM-36dG
RoyAlloy Stainless Mold Base Steel

Related Content

k show

Machine-Side and Central Chiller Lines, Industry 4.0 Controls to Launch

Frigel will use K 2022 to showcase a number of developments in process cooling, including new and expanded lines of central and machine-side chillers, as well as advanced control platforms.

Read More

Troubleshooting Leaky Temperature-Control Units

Learn the causes, symptoms and remedies for TCU leaks to keep these vital contributors to plastics processing up and running longer and more efficiently.

Read More

How to Reduce Sinks in Injection Molding

Modifications to the common core pin can be a simple solution, but don’t expect all resins to behave the same. Gas assist is also worth a try.

Read More

Cooling Geometry and the Reynolds Calculation

The original Turbulent Flow Rate Calculator worked well with a round circuit diameter, such as a drilled passage, but not as well using hydraulic diameters. Here’s how the problem was fixed.

Read More

Read Next

k show

Heating/Cooling: Pressurized Temperature Controller With Cell Connectivity

Wittmann Battenfeld is expanding its Tempro line of temperature controllers at K with a pressurized unit capable of reaching a maximum temperature of 100C.

Read More
Automation

Wittmann Battenfeld Hosts Live Show

Open house to celebrate the expanded U.S. headquarters showcases innovations.

Read More
Feeding & Blending

Wittmann’s 40th Anniversary Gala Unveils New Products

New machinery, robots, and auxiliaries demonstrate continued momentum of technical development—and preview some K 2016 exhibits.

Read More
RoyAlloy Stainless Mold Base Steel