Sterling Hydraulics provide one of the most comprehensive and technically advanced cartridge valve ranges in the World. They design and manufacture pressure and flow control valve cartridges, solenoid valves, including proportional valves.
As well as having a comprehensive product range, they have the design expertise and manufacturing capabilities to produce custom designed manifolds that are tailor made to suit customer's requirements.

Solenoid Proportional Valve
2-Way
Normally Closed Flow Regulator Partially Pressure Compensated
The Sterling Analog Proportional Partially Pressure Compensated Flow Regulator regulates flow proportionally to the input solenoid current.
The solenoid force is balanced against a precision bias spring. The Bernoulli flow forces provide partial pressure compensated flow regulation in either direction (1→2 or 2→1).
The valve is designed to be used in applications where fine pressure compensation is not required and an economical solution is important.
Low cost.
One piece cartridge housing ensures internal concentricity.
Waterproof coil hermetically sealed, requires no O-rings.
Symmetrical coil can be reversed without affecting performance.
Unique nonmagnetic spool and housing assembly eliminates the typical contamination problem created by ferrous particles being magnetically attracted to the valve as is normally experienced by conventional valves.
Factory-adjusted low variation option model (Model "L") is available for applications where low variation of flow from valve to valve is essential at a given current and when external pressure compensator is used.

Technical Specifications
Rated Flow @ 210 Bar 1→2: 13.3L/Min (3.5 US G/Min)
Rated Flow @ 210 Bar 2→1: 9.5L/Min (2.5 US G/Min)
CC Coil Nominal Wattage: 14W (S Coil)
Preferable Input Port For Best Hysteresis: Port 2
Hysteresis At 100 Hz PWM: <10%
Cracking: 25% Of Input Signal
Variation Of Flow @ 35% Of Rated Current And Constant P Maintained By Pressure Compensator: STD Model Up To 20% Of Rated Flow
Min Amperage To Operate Valve At Max Rated Pressure & Flow: 75% Of Nominal Amperage
Fluid: Mineral Oil Or Synthetic Fluid With Lubricant Properties
Ideal Viscosity: 15-50 cSt  80-230 SSU
Nitrile Seal Temperature: -30ºC To +100ºC (-20ºF To +210ºF)
Viton Seal Temperature: -20ºC To +150ºC (-4ºF To +330ºF)
Filtration: 25 Microns (Nom) Or Better
Weight: 0.08 KG (0.17 LB)

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01555 772474
sales@uscltd.co.uk