HOYEA SO Series check valves are widely used in all hydraulic applications, from the mobile to the industrial sector. The SO Series are unidirectional valves for in-line installation. The shutter, poppet or ball, is housed inside a body with female threads, available in sizes 1/4″ BSPP to 1″ BSPP. The oil flow is free from port A to port B while it is interrupted by port B to port A. Available with opening pressures of 0.5 BAR or 3 BAR. The external body is made of high-strength steel and protected externally from corrosion by galvanizing treatment.
| Part # | Ports | Max Flow | Max Pressure | Cracking Pressure | Material |
|---|---|---|---|---|---|
| SO6A1 | 1/4” BSPP | 25 lpm | 350 bar | 0.5 bar | Steel |
| SO6A3 | 1/4” BSPP | 25 lpm | 350 bar | 3 bar | Steel |
| SO8A1 | 3/8” BSPP | 40 lpm | 350 bar | 0.5 bar | Steel |
| SO8A3 | 3/8” BSPP | 40 lpm | 350 bar | 3 bar | Steel |
| SO10A1 | 1/2” BSPP | 60 lpm | 350 bar | 0.5 bar | Steel |
| SO10A3 | 1/2” BSPP | 60 lpm | 350 bar | 3 bar | Steel |
| SO15A1 | 3/4” BSPP | 100 lpm | 350 bar | 0.5 bar | Steel |
| SO15A3 | 3/4” BSPP | 100 lpm | 350 bar | 3 bar | Steel |
| SO20A1 | 1” BSPP | 150 lpm | 350 bar | 0.5 bar | Steel |
| SO20A3 | 1” BSPP | 150 lpm | 350 bar | 3 bar | Steel |
WARNING – IMPROPER USE OR SELECTION OF THE PRODUCTS/EQUIPMENT OR SYSTEMS DESCRIBED CAN CAUSE PERSONAL INJURY, DEATH AND/OR PROPERTY DAMAGE. SAFETY PROCEDURES MUST BE APPLIED PRIOR TO INSTALLATION, COMMISIONING AND/OR OPERATION OF EQUIPMENT AND MACHINERY.

