Description
1" 50 Bar High Pressure Brass Solenoid Valve – PU225X-08
SHAKO Normally Closed High Pressure Piston Solenoid Valve
The SHAKO PU225X-08 is a high-pressure 1" pressure-assisted 2/2 way normally closed brass solenoid valve designed for demanding fluid and gas control applications at pressures up to 50 Bar.
The valve is closed when de-energised and opens when energised, providing a fail-closed solution for high-pressure industrial systems.
Featuring a forged brass body, SUS304 stainless steel piston and PTFE piston sealing, the PU225X-08 combines exceptional pressure capability with a large 25mm orifice for high flow rates. It is suitable for compressed air, water, light oils and compatible non-corrosive fluids and gases.
Technical Specification
Function: 2/2 way normally closed
Valve State: De-energised CLOSED / Energised OPEN
Operation: Pressure-assisted pilot piston
Minimum Pressure Differential: 0.5 Bar
Operating Pressure Range: 0.5 to 50 Bar
Proof / Test Pressure: 75 Bar
Port Size: 1" BSPP female
Optional Threads: NPT or Rc
Orifice Size: 25.0mm
Kv Flow Factor: 171.6 L/min based on water with 1 Bar pressure drop
Body Material: Forged brass
Internal Components: SUS304 stainless steel
Piston: SUS304 stainless steel
Piston Seal: PTFE (Optional NBR)
Armature Seal: NBR
Suitable Media: Compressed air, water, light oils and compatible non-corrosive fluids and gases up to 50 CST
Media Temperature: -10°C to +90°C
Ambient Temperature: -10°C to +60°C
Installation: Horizontal mounting recommended
Seal & Piston Construction
The PU225X uses a pressure-assisted stainless steel piston construction specifically developed for high-pressure service.
Piston: SUS304 stainless steel
Piston Seal: PTFE
Armature Seal: NBR
Maximum Media Temperature: +90°C
The complete valve is limited to -10°C to +90°C media temperature by the combined NBR and PTFE sealing construction.
Coil & Electrical Specification
Coil: Nass Magnet
Power Consumption:
15 Watts DC
17.6 VA at 110VAC
18.1 VA at 220VAC
Coil Insulation: Class F
Duty Rating: 100% continuous duty
Protection Rating: IP65 with connector fitted
Electrical Connector: DIN 43650 Form A
Connector: Included
Voltage Tolerance: ±10%
Voltage Options
DC:
12VDC, 24VDC, 48VDC, 110VDC or 220VDC
AC 50/60Hz:
12VAC, 24VAC, 48VAC, 110VAC, 230VAC or 380VAC
ATEX / IECEx Coil Option
Optional Nass Magnet explosion-protected solenoid operator available.
✓ Ex mb IIC T4 Gb
✓ Ex mb tb IIIC T130°C Db
✓ Suitable for Zone 1 gas and Zone 21 dust hazardous areas
✓ ATEX Category 2G / 2D
✓ Protection rating: IP65
✓ Maximum media temperature: +80°C
✓ ATEX Certificate: PTB 03 ATEX 2086 X
✓ IECEx Certificate: IECEx PTB 05.0005X
✓ ATEX Directive: 2014/34/EU
Patented High Pressure Design
Taiwan Patent: M391595
UK Patent: GB2480100
The PU225X series is specifically engineered for high-pressure operation, combining a pressure-assisted SUS304 stainless steel piston with PTFE sealing for reliable operation at pressures up to 50 Bar.
Why Choose the PU225X High Pressure Valve?
The PU225X-08 combines a full 1" BSPP connection with a 50 Bar operating pressure, 75 Bar proof/test pressure and high-flow 25mm orifice.
Its pressure-assisted stainless steel piston construction makes it particularly suitable for demanding industrial systems where conventional general-purpose diaphragm solenoid valves do not provide sufficient pressure capability.
Typical Applications
High-pressure pneumatic systems
Compressed air installations
High-pressure water systems
High-flow industrial process control
Pressure testing equipment
Light oil systems
OEM machinery
Process plant equipment
Industrial automation systems
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