Main applications of PTFE solenoid valve, working principle of PTFE solenoid valve structure

PTFE electromagnetic Main applications of valves

PTFE solenoid valve (also known as corrosion-resistant plastic king solenoid valve) is made of polytetrafluoroethylene. It has zero-pressure startup, stable performance, good sealing, and long life. PTFE solenoid valve is used in strong acids, strong alkali, strong oxidizers and chemicals Strongly corrosive fluid media such as solvents and ultrapure fluids. For example, automatic control of pipelines such as concentrated acid, strong acid, various electroplating solutions, aromatic solvents, aliphatic solvents, and high-clean fluids. Solenoid valve is widely used in machinery supporting, petrochemical industry, chemical reagent factory, The best supporting products for automated fluid control of various corrosive media such as chemical analysis instruments, sewage treatment equipment, scientific research instruments, etc.

PTFE solenoid valve structure technology

1. Piston structure, rapid opening and closing, not easy to block, unique soft sealing process sealing technology, No dripping;

2. The seals are made of imported high-quality Technology product, with strong corrosion resistance, can withstand various strong acids, alkalis, and strong oxidants, and can be used for a long time without damage;

3. The fluid medium is isolated from other metal parts.

Working principle of PTFE solenoid valve

This valve is a step-action direct pilot solenoid valve. According to the different switching status when the power is cut off, it can be divided into normally closed type and Normally open.

Normally closed type: When the solenoid coil is energized, the armature first drives the auxiliary valve to open under the action of electromagnetic force, and the main valve opens under the action of the formed medium pressure difference and electromagnetic force. When the solenoid coil is powered off, the armature component is reset, and the main and auxiliary valves are tightly closed using the medium pressure.

Normally open type: When the solenoid coil is energized, the armature moves downward under the action of magnetic force, pushing the valve plug of the auxiliary valve downward until it is pressed against the auxiliary valve seat and the auxiliary valve is closed. Since the pressure difference between the upper and lower parts of the main valve cup tends to be equal, The main valve cup is tightly sealed by magnetic force and self-weight pressure, and the valve is closed. WhenSolenoid valve When the coil is de-energized and the magnetic force is zero, the armature and the valve plug of the auxiliary valve rise due to the action of the spring, the auxiliary valve opens, and the valve cup of the main valve The medium flows away through the auxiliary valve, the pressure drops, the main valve cup rises upward due to the pressure difference between the upper and lower parts, the main valve opens, and the valve is opened.

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