Description
1" Brass Steam Solenoid Valve – Shako PU225S-08
High Flow Brass Steam Solenoid Valve – 10 Bar, +180°C
The SHAKO PU225S-08 is a high-flow 1" pressure-assisted 2/2 way normally closed brass solenoid valve designed specifically for steam and high-temperature fluid control applications.
Featuring a forged brass body, stainless steel internals, piston-assisted operation and PTFE sealing, the valve provides reliable control of steam up to 10 Bar and +180°C. It can also be used with air, water and compatible gases and fluids at pressures up to 15 Bar.
Its large 25mm orifice provides excellent flow capacity, making the PU225S-08 particularly suitable for industrial steam systems, process heating, hot water systems and high-temperature OEM applications.
Typical Applications
Steam distribution and isolation
Industrial boilers and heating systems
Process plant and utility services
Hot water systems
Food and beverage processing
Chemical processing equipment
Industrial process heating
OEM machinery
High-temperature fluid and gas control
Technical Specification
Function: 2/2 way normally closed
Valve State: De-energised CLOSED / Energised OPEN
Operation: Pressure-assisted piston design
Minimum Pressure Differential: 0.5 Bar
Steam Pressure Range: 0.5 to 10 Bar
Air, Water & Compatible Gas Pressure: 0.5 to 15 Bar
Proof / Test Pressure: 15 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
Seal Material: PTFE
Suitable Media: Steam, hot water, air, water and compatible gases and fluids
Maximum Fluid Viscosity: 50 CST
Media Temperature: -5°C to +180°C with Class H coil
Ambient Temperature: -20°C to +60°C
Installation: Horizontal mounting recommended
Coil & Electrical Specification
Coil: Nass Magnet
Coil Power DC: 15 Watts
Power Consumption 110VAC: 17.6VA
Power Consumption 220VAC: 18.1VA
Insulation Class: Class H 180°C
Duty Rating: 100% continuous duty
Protection Rating: IP65 with connector fitted
Electrical Connection: DIN 43650 Form A
Connector: Included
Voltage Options
DC Voltages:
12VDC, 24VDC, 48VDC, 110VDC, 220VDC
AC Voltages:
12VAC, 24VAC, 48VAC, 110VAC, 230VAC, 380VAC 50/60Hz
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
Important: When fitted with the ATEX / IECEx solenoid operator, maximum media temperature is +80°C. The +180°C steam rating applies to the standard Class H high-temperature coil configuration.
Why Choose the PU225S Steam Solenoid Valve?
The SHAKO PU225S series is purpose-designed for steam and high-temperature applications. The pressure-assisted piston construction and PTFE sealing provide reliable operation at elevated temperatures while maintaining a relatively compact valve design.
The 1" PU225S-08 provides a 25mm flow orifice and Kv 171.6 L/min, making it particularly suitable for applications requiring high steam or fluid flow without moving to a substantially larger valve body.
Steam operation is rated up to 10 Bar because of the +180°C maximum media temperature. For air, water and compatible gases and fluids within the permitted temperature range, pressure can be up to 15 Bar.
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