The ignition solenoid valve NFHTB316D024VMBCCC is a two-position two-way pilot solenoid valve, which is specially developed for low-pressure control scenarios, especially suitable for ignition control modules of gas turbines, industrial combustion systems and other equipment. The valve is powered by DC 24V (DC24V) and has low power consumption characteristics, which meets the explosion-proof and anti-interference requirements in harsh environments. The valve body is made of stainless steel, and the internal sealing element is made of high-temperature resistant fluororubber, which can withstand the medium temperature range of -20℃ to +120℃ for a long time. The protection level reaches IP65, which is suitable for complex working conditions such as humidity and dust.

Structural design and working principle

1. Pilot structure

The ignition solenoid valve NFHTB316D024VMBCCC adopts the pilot control principle and consists of two parts: the main valve and the pilot valve. When powered on, the solenoid coil drives the pilot valve core to move, and by releasing the pilot chamber pressure to form a pressure difference, the main valve core is pushed to open quickly to realize the medium passage; after power failure, the spring reset mechanism closes the pilot valve, the main valve chamber pressure is restored, and the valve core is sealed and closed under the action of the medium pressure difference.

2. Fluid adaptability

Suitable for clean gas media such as air and natural gas, the medium viscosity must be less than 20cSt. The valve port diameter design takes into account both flow and response speed, the inlet pressure range is 0.1-10bar, and the pressure difference must be higher than 0.04MPa to ensure reliable operation.

3. Safety redundancy design

Built-in manual operation device, the valve can be forced to open and close through the mechanical knob in the event of power failure or emergency. The valve body integrates a filter structure to prevent particulate matter from blocking the valve core and extend the service life.

Key performance parameters

- Electrical parameters: rated voltage DC24V (±10%), power ≤5W, response time ≤50ms

- Mechanical parameters: nominal diameter DN15, connection method is flange or thread (optional), leakage level CLASS IV

- Environmental adaptability: working environment temperature -40℃ to +80℃, vibration tolerance ≤5g (10-2000Hz)

Typical application scenarios

1. Gas turbine ignition system

As the core actuator of the ignition sequence, it accurately controls the gas supply timing and cooperates with the flame detector to realize ignition-monitoring closed-loop control.

2. Industrial boiler combustion control

Integrated in the burner control cabinet, it is linked with the PLC to adjust the fuel injection to ensure the ignition success rate and prevent the risk of deflagration.

3. Emergency start and stop of generator sets

In diesel generator sets, it participates in the overspeed protection system to quickly cut off the fuel supply to ensure equipment safety.

Installation and maintenance points

1. Installation specifications

- The valve body needs to be installed according to the medium flow direction mark, preferably horizontal or vertical upward direction

- The pipeline system needs to be equipped with a pre-filter to ensure the medium cleanliness within NAS 1638 level 7

- The electromagnetic coil wiring must comply with the electrical specifications of the explosion-proof area, and the grounding resistance must be ≤0.1Ω

2. Operation and maintenance management

- Check the valve body sealing every 500 hours and test the action response time

- Annual maintenance requires disassembly and cleaning of the valve core assembly and replacement of aging seals

- When out of service for a long time, the inlet and outlet valves should be closed and the pipeline medium should be emptied

The ignition solenoid valve NFHTB316D024VMBCCC has become a key basic component in the field of energy equipment due to its fast response and low failure rate. Its technological iteration has significant value in improving the energy efficiency and safety of the combustion system.

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