Applications:
SVE Series solenoid valves are piston structure to high temperature, high pressure and vacuum and long service life. Widely used in nuclear industry, aerospace, military, marine, petrochemical, power equipment, medical equipment, boilers, gas fuel, hydraulic equipment, plating and coating, and vacuum pipeline systems.
Technical parameters:
Medium: water, oil, gas, vacuum systems and other corrosive fluids and acid-base
Medium viscosity: less than 20m m / s (greater than the time to be customized)
Protection class: German standard DIN40050 (IP65)
Electrical connection: terminal box, cable-lead
Principle structure: Two piston type with guide
Protection performance: waterproof, explosion-proof, corrosion
Structure type: the pilot piston
Explosion-proof grade: EXdⅡCT5
Operating factor: 100% ED

How it works:
1.Step direct-acting:
   Normally closed type: solenoid valve, solenoid coil electromagnetic force generated from the seat to lift the pieces off, valve open; power, the electromagnetic force disappears, the spring force to close the piece down on the seat, the valve closes.
Normally open type: normally closed operation with the opposite direction.
2.Pilot:
   Normally Closed: When the solenoid coil is energized, the electromagnetic force open the pilot hole. The pressure chamber on the rapid decline in the vicinity of the piston and seals on the formation of a high pressure low. This pressure difference push the piston and seals from the valve seat on the lift. Valve opening; coil energized, the spring force pilot hole closed, the bypass valve inlet pressure into the hole on the chamber quickly, in the vicinity of the piston and seals compete on the formation of a low pressure difference, thus promoting the piston and seals pressing down on the seat, the valve closes.
Normally open type: normally closed operation with the opposite direction.
Structural features:
1.Exquisite appearance, start with low pressure: the piston shape for the butterfly flying disc, lightweight and flexible leave the valve piston cavity fluid circulation within the larger space.
2.Double seal set, will not leak: There are two seals on the piston area, one side of a piston groove, groove around the elastic seal, and second piston plate down there with the valve seat sealing surface; other manufacturers piston cylinder piston series only has a sealed bottom and the piston movement and needs some space, it is not possible to do without leakage, with the use of wear and tear, the gap is growing.
3.Flexible switch, valve not stuck: Here are oriented positioning piston rod, the piston up and down movement never deviated from the center, thus avoiding stuck; other plants because of the cylindrical piston Piston Series occupy themselves within the valve chamber high spatial, and thus can not set the guide bar, so when other interference by external vibration activity, the piston will be off-center, resulting in stuck.
4.Failure to eliminate the magnetic permeability, the coil long life: In order to ensure quality reputation, moving core, the electromagnetic coil magnet wire and other materials are rigorously screened and thousands of experiments.

Shape the structure and size parameters:

Selection guide:
1.fluid medium pressure, temperature and other parameters must be provided according to the actual working conditions.
2.If the fluid contains impurities, the solenoid valve should be installed in front of the filter (filter ≥ 60 mesh), and the fluid should be no solidification or crystallization.
3.If special connections or vertical installation, etc., please specify when ordering.