Electrical Shunt Gate Valves Serie VDE

About Electrical Shunt Gate Valves Serie VDE

Electrical Shunt Gate Valves Serie VDE

MAIN CHARACTERISTICS : The VDE valve is designed for use in combined home boilers with instant and semi-rapid production of domestic hot water. It is designed to shunt the flow of water away from the primary boiler circuit to the secondary heat exchanger, excluding the heating circuit (priority to hot water). It can be used in boilers that employ series VDP series VDP/M valves without changing the layout of the boiler fittings and by merely inserting the control unit.

FUNCTION : VDE valves can be powered by a linear synchronous or step-by-step electric motor. Version VDE/ML does not have a limit microswitch and must be controlled by an external control unit which receives its input signal from a flow switch and/or from a temperature probe. Version VDE/MR is equipped with a limit microswitch. There are two types of valve depending on the type of gate: Type S: ball gate enbloc with the electric motor shaft. Gate closure force is exerted by the electric motor itself. In this case replacement of the motor calls for emptying the heating plant's pipeline system. Type P: plate gate which is not enbloc with the electric motor shaft. Closure of the gate in path B is done by the force exerted by the electric motor. Closure of path A is done by the force of the spring lodged inside the valve body. In this case replacement of the motor does not require emptying of the heating plant's pipeline system.

When the valve stem is in its low position and path A is closed the flow is shunted to path B (hot water heater path, Fig.2). When the stem is in its high position and path B is closed the flow is switched to path A (heating plant, Fig.1). A power failure will leave the valve in the position it was in at the time of failure.

 

Reliable Electric Actuation and Control

The VDE electrical shunt gate valves can be operated remotely or locally via a robust electric actuator, suitable for automation and integration into flow control systems. The integrated electric position indicator offers precise feedback on valve status, minimizing manual intervention and streamlining operation in industrial environments.


Built for Stringent Industrial Standards

Manufactured to international standards such as GB, ANSI, DIN, and JIS, these valves offer versatility for installation in various global systems. The body thickness and materialscast iron, ductile iron, or stainless steelensure durability, with FBE epoxy coating providing exceptional corrosion resistance.


Versatile Applications and High Performance

Designed for use with a range of media including water, oil, gas, and steam, the VDE shunt gate valves excel in high-pressure settings up to PN25. Their advanced sealingavailable in soft or metalprotects against leakage, while low operating torque and wear resistance ensure reliable performance and minimal maintenance.