For installers seeking frost protection for Heat Pumps, hydronics specialist ESBE has the VTN100 series, which features an axial sealing element containing a piston which provides a consistent level of compression. Another feature is an anti-vacuum mechanism to permit air admittance. It is designed to open when the temperature in the fluid falls below 30 C, releasing water and allowing warmer water to enter the system. The valve will then close again once the temperature rises above 40 C. No manual reset is needed after the valve has been automatically activated.
The VTN102 valve has been developed to fit DN25 and DN32 (28mm and 35mm) pipe diameters to automatically monitor the temperature of the water flow.
ESBE’s Technical Manager, Nigel Raper, comments: “Our new Anti-Freeze Valve features an axial sealing element with a piston running through a specially formulated wax blend sealed in a metal cup. This provides a consistent level of pressure, reducing the risk of the valve leaking or sticking. The VTN102 is straightforward to install, requires no maintenance and will be ultra reliable.”
Image: ESBE
