3/8 Inch High Pressure Brass Normally Open Solenoid Valve – Shako NOPU225H-03 (PU225HN-03)
A high-pressure pressure-assisted 2/2 way normally open brass solenoid valve designed for demanding fluid and gas control applications up to 25 Bar. The Shako NOPU225H-03 combines a forged brass body, stainless steel internals and reinforced diaphragm sealing to provide reliable operation on air, water, light oils and compatible gases where fail-open operation is required. Features include high-pressure capability, quick response and exceptional durability.
Valve Function & Operation
Function: 2/2 way normally open
Operation: Pressure assisted diaphragm design
Minimum operating pressure: 0.5 Bar differential
Port size: 3/8" BSPP
Optional threads: NPT or Rc
Pressure & Flow
Operating pressure: 0.5 to 25 Bar
Proof pressure: 30 Bar
Orifice size: 8.0 mm
Kv flow factor: 28.6 L/min
Based on water with 1 Bar pressure drop.
High-pressure operation with fail-open safety function.
Construction & Materials
Body: Forged brass
Internals: Stainless steel (SUS304)
Diaphragm design for high-pressure service
Seal material (standard): NBR with nylon reinforcement
Optional seals:
EPDM
FKM (Viton®)
HNBR
Media Compatibility
Suitable for:
Air
Water
Light oils
Neutral gases
Most compatible fluids and gases up to 50 CST
Temperature Limits
Media temperature:
NBR: -15°C to +80°C
HNBR: -40°C to +150°C
FKM: -10°C to +180°C
EPDM: -5°C to +130°C
Ambient temperature: -10°C to +60°C
Coil & Electrical
Coil: Nass Magnet System 13/36
Power consumption: 18.5 Watt
Connector: DIN 43650A
Insulation class: Class H
Duty cycle: 100% continuous rated
Protection rating: IP65 with connector fitted
Connector included.
Voltage Options
DC: 12V, 24V, 48V, 110V or 220V
AC: 12V, 24V, 48V, 110V, 230V or 380V (50/60 Hz)
Hazardous Area Option
ATEX Ex mb IIC T4
Temperature class: T4 (T130°C)
Certification:
Ex mb IIC T4 Gb
Ex mb tb IIIC T130°C Db
Suitable for Zones 21 & 22 hazardous areas.
Maximum pressure with ATEX coil: 20 Bar
Maximum media temperature with ATEX coil: +80°C
Benefits
Fail-open operation for safety-critical applications
