General Description

The DS161C and DS161N solenoid valves are used in circuits requiring on/off valves and low leakage. Single acting cylinder applications typically utilize valves of this type. Valves can be used for bleed down flow and/ or raising and lowering a vertical cylinder. Normally open and normally closed configurations plus manual overrides are available.

• Low hysteresis
• Replaceable, one piece encapsulated, coils with minimal amperage draw
• Variety of coil terminations and voltages
• Variety of manual override options available

Function and Features

Normally closed:
The valve pilot is held on its seat by spring force, blocking pilot flow. This allows pressure at the inlet to hold the poppet on its seat, thus, preventing flow through the valve (inlet to outlet). When the coil is energized, the valve pilot is pulled off its seat. This vents pressure inside the poppet to the outlet port, creating a pressure imbalance across the main poppet which allows flow from the inlet to the outlet.

Normally Open:
The valve pilot is held off of its seat by spring force. Pilot flow is vented to the outlet port, creating a pressure imbalance which moves the main poppet off it’s seat, allowing flow from the inlet to the outlet. When the coil is energized, the valve pilot and main poppets are forced to close, thus blocking flow from the inlet to the outlet.

Details

 DS161; 2/2-way cartridge valve; poppet design; normally closed; full reverse flow; no manuar override; configurated without coil; Sealing material Nitrile

Configuration Key

Following the configuration key of the DS161 is shown.

 

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