Description
3/8" 16 Bar Brass Solenoid Valve – SHAKO PU220AR-03
The SHAKO PU220AR-03 is a compact 3/8" 2/2 way normally closed pressure-assisted brass solenoid valve designed for higher flow control of compressed air, water, light oils and compatible non-aggressive fluids.
Featuring an 8mm orifice and assisted-lift diaphragm design, the PU220AR-03 provides substantially increased flow capacity compared with the smaller direct acting PU220AR valves. A minimum pressure differential of 0.1 Bar is required for normal operation.
The standard 15W coil configuration operates from 0.1 to 10 Bar, while an optional higher-power 18.5W coil extends the operating pressure range to 0.1 to 16 Bar, providing increased pressure capability without sacrificing the larger 8mm flow orifice.
Its forged brass construction, compact dimensions and choice of sealing materials make the PU220AR-03 suitable for industrial water systems, pneumatic equipment, OEM machinery and general fluid control applications.
Valve Function & Operation
Function: 2/2 way normally closed
Operation: Pressure-assisted / assisted lift
Construction: Diaphragm
Port size: 3/8" BSP
Optional thread: NPT
Orifice: 8.0mm
Effective area: 20.64mm²
Minimum operating pressure: 0.1 Bar differential
Unlike the smaller direct acting PU220AR models, the PU220AR-03 uses an assisted-lift diaphragm design to provide a much larger 8mm flow orifice.
A minimum pressure differential of 0.1 Bar is required across the valve for normal operation.
Pressure & Performance
Standard pressure range: 0.1 to 10 Bar
Standard coil power: 15W
High-pressure option: 0.1 to 16 Bar
High-pressure coil: 18.5W
Minimum differential pressure: 0.1 Bar
Orifice size: 8.0mm
Effective area: 20.64mm²
Flow rate: 19 L/min water @ 1 Bar ΔP
The optional 18.5W higher-power coil increases the available magnetic force, extending the valve operating pressure capability to 16 Bar while retaining the larger 8mm flow orifice.
Construction & Materials
Body: Forged brass
Internals: Stainless steel
Construction: Assisted-lift diaphragm
Orifice: 8.0mm
Effective area: 20.64mm²
Standard seal: NBR
Optional seals:
✓ FKM (Viton)
✓ EPDM
Installation: Any direction
Recommended installation: Horizontal
Mounting holes: M5 × 0.8
Net weight: Approximately 510g
Seal & Media Selection
Correct seal selection is important when using the PU220AR-03 with different fluids.
NBR:
✓ Air
✓ Water
✓ Neutral gases
✓ Mineral oil
FKM (Viton):
✓ Fuel oil
✓ Gasoline / petrol
✓ High-test gasoline
✓ Diesel fuel
EPDM:
✓ Air
✓ Water
✓ Gear oil
✓ Engine oil
Always confirm chemical and temperature compatibility of the selected seal and valve materials before use with fuels, gases, oils or specialist process fluids.
Temperature Range
NBR seal: -15°C to +80°C
FKM (Viton) seal: -10°C to +180°C
EPDM seal: -5°C to +130°C
Actual permitted operating temperature may also be limited by the selected coil, media, pressure and installation conditions.
Flow Performance
Orifice size: 8.0mm
Effective area: 20.64mm²
Flow rate: 19 L/min water @ 1 Bar ΔP
The large 8mm orifice provides substantially greater flow capacity than the smaller direct acting PU220AR models.
The assisted-lift diaphragm construction allows this larger flow path to be controlled using a compact solenoid operator, provided that at least 0.1 Bar differential pressure is available.
Coil & Electrical
Standard coil power: 15W
Optional high-power coil: 18.5W
Standard pressure: 0.1 to 10 Bar
18.5W pressure range: 0.1 to 16 Bar
Duty cycle: 100% ED
Electrical connection: DIN43650A
Protection: IP65 with connector fitted
Available AC and DC voltage options depend upon the selected coil configuration.
Voltage Options
DC options include:
✓ 12V DC
✓ 24V DC
✓ 48V DC
✓ 110V DC
✓ 220V DC
AC options include:
✓ 12V AC
✓ 24V AC
✓ 36V AC
✓ 48V AC
✓ 110V AC
✓ 230V AC
✓ 380V AC 50/60Hz
Hazardous Area Option
An optional explosion-protected solenoid operator is available for suitable hazardous-area applications.
ATEX configuration, maximum pressure, media temperature, electrical specification and hazardous-area classification depend upon the selected explosion-protected operator.
Please select the ATEX option or contact us before ordering for hazardous-area installations.
Special Options
✓ 18.5W high-power coil
✓ 0.1 to 16 Bar configuration
✓ NPT thread option
✓ FKM seal option
✓ EPDM seal option
✓ Alternative coil voltages
✓ ATEX coil option
✓ Custom configurations available
Typical Applications
✓ Industrial water systems
✓ Pneumatic control systems
✓ Compressed air distribution
✓ OEM machinery
✓ Industrial control panels
✓ Cooling water systems
✓ Light oil control
✓ Process fluid control
✓ General industrial automation
High Flow Assisted-Lift Design
The SHAKO PU220AR-03 extends the compact PU220AR Series into higher-flow applications by combining a forged brass body with an 8mm orifice and pressure-assisted diaphragm construction.
Unlike the smaller direct acting PU220AR models, the PU220AR-03 uses system pressure to assist valve operation. This allows a significantly larger flow orifice while maintaining compact overall dimensions, although a minimum pressure differential of 0.1 Bar is required.
For standard applications, the 15W coil provides an operating pressure range of 0.1 to 10 Bar. Where increased pressure capability is required, the optional 18.5W higher-power coil extends the operating range to 0.1 to 16 Bar.
This combination of compact construction, high flow capacity and optional 16 Bar operation makes the PU220AR-03 particularly suitable for industrial water, compressed air and compatible fluid systems where the smaller direct acting PU220AR valves cannot provide sufficient flow.
Ordering Information
Select the required seal material, thread, voltage and pressure range before adding the valve to your basket.
Available options include:
✓ 3/8" BSP thread
✓ Optional 3/8" NPT thread
✓ NBR, FKM or EPDM seals
✓ Standard 0.1 to 10 Bar version
✓ High-power 0.1 to 16 Bar version
✓ AC and DC voltage options
✓ Optional ATEX configuration
For 16 Bar operation, select the 18.5W high-power coil option.
For fuels, gases, high-temperature or unusual process media, contact us before ordering so that material compatibility and the correct valve configuration can be confirmed.
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