Description
1 Inch Brass Steam Solenoid Valve 0.5–20 Bar – CS Fluid Power SA25 (NSA25)
A heavy-duty, pressure-assisted piston operated 2/2 way normally closed brass solenoid valve designed for high-flow, high-pressure and high-temperature applications. The SA25 (NSA25) is a robust, long-life steam valve and a proven choice for demanding industrial steam and thermal process control.
Valve Function & Operation
Function: 2/2 way normally closed
Operation: Pressure assisted piston operated
Minimum operating pressure: 0.5 Bar differential
Recommended mounting: Horizontal pipework with coil upright
Ports & Flow
Port size: 1" BSPP
Optional threads: NPT or Rc
Orifice size: 25.0 mm
Kv flow factor: 188.8 L/min based on water with 1 Bar pressure drop
Pressure & Temperature
Steam pressure range: 0.5 to 12 Bar
Air, water and oil pressure range: 0.5 to 20 Bar
Maximum media temperature: +200°C
Ambient temperature: -40°C to +60°C
Maximum media viscosity: 50 CST
Opening / closing time: 200 mSec maximum
Construction & Materials
Body material: Forged brass
Internal components: Stainless steel and brass
Piston seat: PTFE
Piston ring: PTFE + MoS₂
Seals and gaskets: PTFE
Tube and springs: Stainless steel
Armature: Stainless steel
Designed for high temperature operation and extended service life
Media Compatibility
Steam
Air
Water
Hot water
Light oils
Other fluids up to 50 CST
Gases compatible with materials of construction
Coil & Electrical
Standard coil: WPG2
Power consumption: 18 Watts DC / 18.7 VA AC inrush
Insulation class: Class H (180°C)
Protection rating: IP68 coil
DIN 43650A connector
100% duty rated
UL, CSA and CE approved
Supplied with IP67 LED connector
Overall protection rating IP67
Voltage Options
DC: 12V, 24V, 48V
AC: 24V, 48V, 110V, 230V & 380V (50/60 Hz)
ATEX Hazardous Area Option
ATEX EEx m II T4
Protection: Ex mb IIC T4 Gb and Ex mb tb IIIC T130°C Db
Suitable for hazardous area Zone 21 & 22
Pressure range with ATEX coil: 0.5 to 10 Bar
Special request option: 0.5 to 20 Bar
Maximum media temperature with ATEX coil: +80°C
Benefits
Heavy-duty piston operated design
Suitable for steam up to +200°C
High pressure capability up to 20 Bar
High flow rate of 188.8 L/min
Long service life in demanding applications
Forged brass body construction
PTFE sealing for high-temperature service
IP68 coil with IP67 connector
Suitable for continuous operation
Fast UK delivery available
Additional Options
Manual override circuit
Degreased for oxygen service
NPT thread connections
Stainless steel body version available
Normally open versions available
Flanged versions available
Typical Applications
Steam control and isolation
Steam boilers and generators
Autoclaves and sterilisers
High-temperature process equipment
Industrial thermal systems
High-flow on/off steam applications
Heat exchangers
Long-term high-pressure and high-temperature service
HS Code: 84818030
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