Honeywell VR434PE4004-0000 gas valve DN32 100 mbar 230V Remeha

The Resideo VR434PE4004-0000 gas control units are gas solenoid valves used to control the flow of gaseous fuel in a variety of gas-consuming devices, such as burners, boilers and furnaces. They are designed for use both in systems with spark ignition of the burner and with pilot burners.

They include two main valves: V1 and V2. V1 opens and closes quickly, and V2 can react either quickly (with flow control) or slowly (with control and the ability to adjust the opening).

A pressure control valve is located between V1 and V2. The main body is equipped with 4 flange connections for the installation of various equipment, such as the C60VR series pressure switch, intermediate pressure switch and valve inspection systems (VPS) together with the pressure switch. These components can be placed on different parts of the main body of the CVI valve Honeywell VR434PE 4004-0000.

Technical specifications

• Closing spring: AISI 302 steel

• Valve plunger: with Fe 360 coating

• Seals and gaskets: hydrocarbon-resistant types of butadiene-acrylonitrile (NBR) and viton rubber.

• Body material: Aluminum alloy, injection molding

• Strainer: fine mesh mesh (diameter 0.34 mm), AISI 303 steel, can be cleaned by unscrewing the inlet flange screws. Meets the requirements for mesh filters according to EN 161.

• Minimum adjustment capacity: 1 m3/h.

• Maximum operating pressure: 200 mbar

• Valve classification: Class A + A according to EN 126/EN 161

• Regulator classification: Class C according to EN 126/EN 88

• Supply voltage: mains 230 V~, 50/60 Hz

• Other voltages – on request.

• Ambient temperature: -15 ... 60 °C

• The flange kit contains:

1 flange with sealing plug

1 O-ring and 4 screws

1 pressure measuring fitting installed

• Housing: IP 40

Design and principle of operation

Servo-controlled combined gas valves of the VR434PE4004-0000 series are double fault-tolerant shut-off valves of class A.

The valve is opened by excitation of two-position direct-acting actuators. Each actuator consists of a coil and a locking sleeve assembly. Inside the locking sleeve there is a plunger, which is connected to a rubber valve and can move up and down, thereby opening and closing the valve. The plunger is covered with antifriction material. The flow is regulated by means of a variable stroke of the plunger. A strainer made of AISI303 stainless steel is installed between the inlet flange and the main body. The closing spring of the valve is made of AISI302 stainless steel. Seals and gaskets are made of hydrocarbon-resistant butadiene-acrylonitrile (NBR) rubber according to DIN 3535 and EN 291.

The VR434PE4004-0000 valve is a servo system.

The control valve is located between two shut-off valves. When power is supplied to both actuators, the "servo gas" begins to flow through the regulating membrane system. From this chamber, the gas passes into the servo chamber through the intake diaphragm (restriction). The pressure in the servo chamber is regulated by a pressure regulator. The balance between the servo pressure and the pressure under the control membrane determines the opening of the control valve. As soon as the control valve opens, the exhaust pressure generated by the VR434PE4004-0000 series valve will be perceived by the regulator membrane through the feedback channel. When the force generated by this pressure is greater than the value set by the adjusting screw, the control valve opens, somewhat relieving the operating pressure. This reduces the force directed towards the action of the spring of the control valve, allowing the latter to close proportionally. Thus, the control valve limits the exhaust pressure (pressure applied to the burner) to the set level. As a result, the exhaust pressure is continuously maintained by comparing it with the set pressure and changing the position of the control valve accordingly. This means that regardless of the fluctuations in the intake pressure, the exhaust pressure remains unchanged. When disconnected, a small volume of working gas from the regulator and the membrane chamber exits into the main exhaust chamber. The reference pressure feedback channel then regulates the exhaust pressure by compensating for the difference between the air pressure in the combustion chamber and the pressure at the valve. If pressure adjustment is not required, the regulator spring can be blocked by screwing the adjusting screw until it stops or until the pressure regulation stops. In these cases, the full pressure of the "servogas" opens the control valve as much as the pressure drop will allow.

Replacing a Honeywell VR 434 PE 4004-0000 gas valve DN32 is a good solution to make your equipment work again. We offer a wide range of Honeywell spare parts for burners, gas trains etc. We supply original Elster (Kromschröder) & Honeywell (Maxon) products.

If you have any queries about Honeywell VR400 gas valves or any other Honeywell spare parts, please write us at 624burner@gmail.com, quoting the item code VR434PE4004-0000.