Purchase now: Winner ES-08W-2A-14-Z-04 Spool Valve
Purchase now: Atlantech Drives provides you the Winner Hydraulics ES-08W-2A-14-Z-04. This is a Solenoid Operated Spool Valve designed for mobile hydraulic applications, indicated by its 12V DC Coil («04»). The «ES» series distinguishes itself from the «EP» series by using a sliding Spool Design rather than a poppet. This cartridge fits a Size 08 cavity and functions as a 2-Way, Normally Closed (NC) valve. When energized, the spool shifts to allow flow; when de-energized, it blocks flow (with some allowable internal leakage).
Technical Specifications: Spool vs. Poppet
Why choose a spool valve? The ES-08W-2A offers smooth transition characteristics and is often more cost-effective for applications where absolute zero leakage is not required, such as engaging a hydraulic motor, activating a cooling loop, or general flow switching. The valve is rated for 350 Bar and handles flows up to 23 LPM. The «14» code typically refers to a specific termination style (likely Spade or Lead Wires) suited for automotive-style wiring harnesses commonly found on trucks and agricultural tractors.
- Part Number: ES-08W-2A-14-Z-04.
- Type: Electro-Spool Valve.
- Function: 2-Way, Normally Closed.
- Voltage: 12V DC (Mobile Standard).
- Leakage: 82 cc/min @ 210 Bar (Typical for Spools).
- Cavity: C-08-2.
- Duty Cycle: 100% Continuous.
- Finish: Zinc Plated («Z»).
Expert Installation Advice: Filtration
Spools stick. Expert Tip: Spool valves have very tight clearances between the spool and the cage. Unlike poppet valves which can sometimes «crush» a small particle into the seat, a spool valve will jam if silty contamination enters the radial clearance. For the ES-08W series, we strongly recommend maintaining fluid cleanliness to ISO 4406 18/16/13 or better. If the valve buzzes but doesn’t open, it’s likely jammed with debris.
Frequently Asked Questions (FAQs)
Q: Is this valve suitable for holding a crane boom?
A: No! Spool valves have internal leakage («bypass»). If you use this to hold a cylinder against gravity, the cylinder will slowly creep down. Use an EP (Poppet) valve or a Load Holding valve for that.
Q: What does Normally Closed mean here?
A: It means if you cut the wire, the valve closes and stops the flow. You need electricity to keep the oil moving.
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