Honeywell VK4105G1146 gas valve

The gas valve from the manufacturer Hanivel VK4105G1146B participates in the control and ignition of the burner. Also, this regulator provides reliable ignition and gas flow control for the pilot and main burner. This valve includes a built-in VK4105 G 1146B gas valve and an ignition regulator. This valve is installed, among other things, on boilers PROTHERM Leopard 24 BOV 15, 24 BTVR 15, Protherm BEAR 20,30,40,50 KLOM 16, Protherm BEAR 20,30,40 KLZ 15, Protherm BEAR 20,30,40,50 KLZ 16: 0020023220.

The Resideo VK4105G 1146B gas solenoid valve has a standard housing and provides many settings, such as:

1. Regulation using a throttle valve.
2. Gradual adjustment with the possibility of adjustment for various control methods.
3. Start with smooth ignition, using innovative SOFTLITE technology.
4. Pressure control by servo drive.
5. Regulation of the mixture of gas and air in a ratio of 1:1.
6. Electric two-level control mechanism.

The Hanivel VK4105 G 1146U gas regulator is equipped with two electrical devices:

• precise control of the main valve;
• constant monitoring of the valve position.

This regulator works with different types of gases:

1. heating
2. liquefied
3. natural

General characteristics

1. The inlet and outlet are suitable for flanged connection
2. Screen: On the input side
3. Pressure valve: Top to measure inlet and outlet pressure
4. Gas connection: Inlet: 3/4″ External outlet: 3/4″ external side outlet: –
5. Back pressure: 1st valve: 50 mbar 2nd valve: –
6. Ambient temperature: -15 … 60°C
7. Maximum inlet pressure: 60 mbar

Notes: with mounting plate at the entrance

Management functions

1. Maximum working pressure: 60 mbar
2. Leakage requirements: According to EN126
3. Capacity (by air): 2.6 m3/h with a pressure drop of 3 mbar

Electrical Information

1. Rated power: 230 VAC; 50 Hz
2. Use only in combination with ignition electronics S456..M

Standard operating conditions

• The Honeywell VK4105G1146U gas valve operates at rated voltage and is installed in an upright position for optimal performance.
• The gas inlet pressure is nominally 25 millibars with dry air and a stable temperature of 20°C.
• The medium maintains a temperature of 20°C.
• The diameter of the diaphragm is 2.8 millimeters.
• The ambient pressure remains at 1013 millibars, ensuring reliable operating conditions.
• The output pressure is recorded using a sensor connected to a 1/2-inch pipe 10 times the diameter through a short hose with a length equal to 5 pipe diameters.
• Gas consumption is measured in cubic meters per hour for maximum accuracy.

General features

The inlet and outlet of the VK4105G 1146U gas solenoid valve have a diameter of 18.6 millimeters and are connected via flanges. There are different models of this gas valve with different levels of closing force, such as:

• B + C
• B + B
• B + J

At the inlet of the valve Honeywell VK4105 G 1146U there is a built-in fine-mesh filter, not intended for cleaning. If necessary, an additional output filter can be installed. At the bottom of the valve there are holes for mounting to the installation.

There are variants of gas regulators with a side outlet for the main and pilot burners. But such a side outlet can only be used with the flange collector of the burner. In addition, there is a connection for pilot gas with a diameter of 4 mm at the output of the VK4105G1146 regulator. It is also possible to install pressure measuring fittings using silicone tubes with a diameter of 4 or 6 mm.

There is a choice of different types of electrical connections, such as connecting to the ignition regulator via a connector or using a plug-in rectifier unit for standard DBI ignition systems. Options for operation at a voltage of 24V are also available for best compatibility with various ignition regulators, with the exception of the S4565/S4585 series regulators.

The principle of operation

VK4105G 1146 gas regulators have a positive feedback system (automatic closing of the main valve in case of lack of power supply or excess gas pressure). The system includes a high-tech pressure servo controller and a pressure relief valve that cooperate with each other. When the power supply is supplied, the gas passes through the servo controller and opens the main valve. The system then maintains a constant pressure by regulating the operation of the main valve. This ensures a stable output pressure, even with changes in the input pressure, and emphasizes its reliability in operation.