ISO 1/2 Pneumatic Valves

What Is an ISO 1 Single Pilot / Single Solenoid 5/2‑Way Valve?

These valves are standardized under the ISO 5599‑1 (ISO 15407‑1) series and are designed to control double-acting cylinders by directing air supply and exhaust through five ports and two positions.

• ISO 1 refers to the size—typically 1/4″ ports—with standard mounting dimensions ensuring interchangeability across manufacturers.

• 5/2‑Way means there are five ports: one supply (P), two outputs (A and B), and two exhausts (EA and EB), plus two positions—energized and de-energized.

• Single Solenoid (Single Pilot) indicates one electromagnetic coil shifts the valve when energized; it’s spring‑returned to its default position when de-energized.

Technical Specifications & Features

Drawing from typical product examples like the Shako PS520 series and Parker DX ISOMAX series:

Shako PS520 (ISO 5599/1 Series)

• Mounting & Ports: ISO 1 (1/4″ BSP/NPT), also ISO 2 (3/8″ or 1/2″) variants.

• Function: Selectable 5/2 single acting (monostable) or double acting.

• Pressure Range: 1.5 to 8 bar (max test pressure 10 bar).

• Temperature Range: –10 °C to +60 °C.

• Materials: Aluminum body, NBR (Buna-N) seals.

• Electrical & Safety: IP65 protection, DIN connector or flying leads, ATEX-certified options available.

Parker DX ISOMAX (ISO 15407‑1 Series)

• Mounting & Ports: 1/8″ or 1/4″ BSPP/NPT ports, suitable for sub-base or manifold mounting.

• Function Options: Includes 5/2 (single or double solenoid, spring or air return) and 5/3 configurations.

• Flow & Performance: Flow coefficient up to 1.55 Cv (~1520 L/min), pressure up to 145 psig (10 bar).

• Materials: Polyamide reinforced with fiberglass, ceramic seats, nitrile seals.

• Electrical: 24 V DC to 120 V AC, 15 mm DIN connectors, IP65.