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HS4D Two Step Solenoid Valve

Hansen Technologies introduces the HS4D Two Step Solenoid Valve. The HS4D is based on the same strength, reliability, design principles and craftsmanship as the standard Hansen HS4A Solenoid Valve—with added versatility. The two step solenoid design provides three positions for the valve: fully closed, partially open (10% stroke), and fully open. These valves are normally closed and will revert to the closed position in the event of a power failure. The valve can be opened via the manual opening stem for pump-out during maintenance.

Similar to the standard HS4A, the HS4D is superior in its ability to overcome dirt and sticky oil during opening, as well as function in an oil-free “dry” system.

The Hansen HS4D is a reliable, rugged-bodied valve that can be used anywhere a soft opening or closing solenoid valve is desired.

The partially open position is designed to gradually introduce liquid flow before switching to the fully open position.

Advantages

These valves combine modern design and materials with advanced manufacturing techniques and quality control to offer a significantly superior and reliable product. Their ductile iron or steel bodies are stronger and more rugged than common cast iron, including semi-steel (class B iron) valves. They are more dirt resistant than full skirted piston designed valves. They use standard, power saving, low wattage coils that can be used on all valve sizes. All valves incorporate reliable teflon seating and stainless steel
spring closing. Main seats are stainless steel on 1½” and larger valves. All valves use a spring activated, teflon, dirt-wiping piston seal. Manual opening stems are located on top of valves, up and away from dirt and rust particles to extend stem seal life. This also facilitates easier insulating of valves. Each valve is individually packaged and sealed for valve interior cleanliness and ease of storage until ready for use.