Key Features

✓ 1/4" BSP Forged Brass Body
✓ 2/2 Way Normally Closed
✓ Direct Acting Zero Pressure
✓ No Minimum Pressure Required
✓ Up to 8.5 Bar AC Pressure
✓ Up to 7 Bar DC Pressure
✓ Suitable for Vacuum Service
✓ Compact Direct Acting Design
✓ Fast Direct Acting Response
✓ 2.3mm Valve Orifice
✓ Increased 1/4" Flow Capacity
✓ NBR Seal as Standard
✓ FKM, EPDM or HNBR Options
✓ -10°C to +90°C Fluid Range
✓ 100% Continuous Duty Coil
✓ Low Power AC 6VA / DC 4.8W
✓ Class F Coil Insulation
✓ IP65 DIN Electrical Connection
✓ BSP or Optional NPT Thread
✓ Optional ATEX / IECEx Coil
✓ ATEX Zone 1 Gas / Zone 21 Dust

1/4" Brass Solenoid Valve 0-8.5 Bar 2/2 Way Normally Closed

★★★★★ 4.8 / 5 (9 reviews)

£30.43 incl. VAT £25.36 ex. VAT

-27% Was £41.50 incl. VAT

Brand: Shako Co Ltd

Model: PU22002AR

Stock: 2366 in stock

Read Full Description

Description

1/4" Brass Solenoid Valve – SHAKO PU220AR-02


The SHAKO PU220AR-02 is a compact 1/4" 2/2 way normally closed direct acting brass solenoid valve designed for reliable control of compressed air, water, light oils and compatible neutral fluids.

Featuring a 2.3mm orifice and direct acting operation, the PU220AR-02 requires no minimum pressure differential and operates from 0 to 8.5 Bar with an AC coil or 0 to 7 Bar with a DC coil. The larger 1/4" port and increased flow capacity make it particularly suitable for OEM equipment, control panels, pneumatic systems and general industrial automation.

The forged brass construction, compact dimensions and low-power coil provide a robust solution where reliable zero-pressure operation is required without the size and complexity of a pressure-assisted valve.

Available with NBR, FKM (Viton), EPDM or HNBR seals and optional ATEX / IECEx explosion-protected solenoid operators, the PU220AR-02 can be configured for a wide range of industrial fluid control applications.

Valve Function & Operation

Function: 2/2 way normally closed
Operation: Direct acting
Port size: 1/4" BSP
Optional thread: NPT
Orifice: 2.3mm
Effective area: 3.3mm²
The direct acting construction operates from zero pressure differential and does not rely upon upstream pressure to open or close the valve.
The larger 1/4" connection and 2.3mm orifice provide increased flow capacity compared with the smaller PU220AR-01 versions while retaining compact, zero-pressure direct acting operation.

Pressure & Temperature

AC pressure range: 0 to 8.5 Bar
DC pressure range: 0 to 7 Bar
Minimum pressure differential: 0 Bar
Fluid temperature: -10°C to +90°C
Ambient temperature: -10°C to +60°C
Maximum operating pressure may vary according to voltage, coil and application conditions.

Construction & Materials

Body: Forged brass
Internals: Stainless steel
Orifice: 2.3mm
Effective area: 3.3mm²
Standard seal: NBR
Optional seals:
✓ FKM (Viton)
✓ EPDM
✓ HNBR
Installation: Any direction
Recommended installation: Horizontal
Mounting holes: M5 × 0.8
Net weight: Approximately 255g

Seal & Media Selection

Correct seal selection is important when using the PU220AR-02 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
HNBR:
✓ Hot water
✓ Detergent liquids
Always confirm chemical and temperature compatibility of the selected seal and valve materials before use with fuels, gases, oils or specialist process fluids.

Flow Performance

Orifice size: 2.3mm
Effective area: 3.3mm²
The larger 2.3mm orifice provides increased flow capacity compared with the 1/8" PU220AR variants while maintaining direct acting operation from zero pressure differential.
This combination makes the PU220AR-02 particularly useful for compact pneumatic, water and industrial fluid control applications requiring a larger 1/4" connection.

Coil & Electrical

Coil type: DIN
AC power consumption: 6VA
DC power consumption: 4.8W
Duty cycle: 100% ED
Insulation: Class F
Protection: IP65 with connector fitted
Voltage tolerance: ±10%
Standard voltages include:
✓ 110V AC
✓ 220–230V AC
✓ 24V DC
Other AC and DC voltages are available as options.

ATEX / IECEx Coil Option

An optional Nass Magnet System 8/22 explosion-protected solenoid operator is available for hazardous-area applications.
✓ Ex mb IIC T4 Gb
✓ Ex mb tb IIIC T130°C Db
✓ Zone 1 gas / Zone 21 dust
✓ ATEX Category 2G / 2D
✓ Gas Group IIC
✓ Dust Group IIIC
✓ IP65 protection
✓ 100% continuous duty
✓ Ambient -20°C to +50°C
✓ Maximum media temperature +80°C
✓ ATEX PTB 00 ATEX 2001 X
✓ IECEx PTB 05.0006X
✓ ATEX Directive 2014/34/EU

Special Options

✓ NPT thread option
✓ FKM seal option
✓ EPDM seal option
✓ HNBR seal option
✓ Alternative coil voltages
✓ Optional LED connector
✓ Optional timer control
✓ ATEX / IECEx coil option

Typical Applications

✓ Pneumatic control circuits
✓ Industrial control panels
✓ Compact valve manifolds
✓ Gas and air handling systems
✓ OEM machinery
✓ Laboratory equipment
✓ Test and measurement equipment
✓ Water control systems
✓ Light oil control
✓ Vacuum control applications
✓ General industrial automation

Compact 1/4" Direct Acting Design

The SHAKO PU220AR-02 combines a compact forged brass body with a larger 1/4" connection and 2.3mm orifice for increased flow capacity while retaining direct acting zero-pressure operation.
Unlike pressure-assisted diaphragm valves, the PU220AR-02 does not require upstream pressure to operate. Energising the solenoid directly operates the internal plunger, providing quick response from zero pressure differential.
The valve operates up to 8.5 Bar with an AC coil and up to 7 Bar with a DC coil, making it suitable for a broad range of pneumatic, water and compatible industrial fluid applications.
A choice of NBR, FKM, EPDM and HNBR sealing materials allows the valve to be configured for different media and temperature requirements, while optional explosion-protected ATEX / IECEx coils extend its use to suitable hazardous-area installations.
Ordering Information
Select the required seal material, thread, voltage and electrical option before adding the valve to your basket.

Available options include:

✓ 1/4" BSP thread
✓ Optional 1/4" NPT thread
✓ NBR, FKM, EPDM or HNBR seals
✓ AC and DC voltage options
✓ Optional LED connector
✓ Optional timer control
✓ Optional ATEX / IECEx coil
For fuels, gases, oxygen or unusual process media, contact us before ordering so that material compatibility and the correct valve configuration can be confirmed.

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View Technical Specification

Technical Specification

Brand: Shako Co Ltd

Model: PU22002AR

Width: 25.40 mm

Height: 75.00 mm

Depth: 35.00 mm

Weight: 0.30 kg

Valve / Product Type: Solenoid Valve

Body Material: Brass

Voltage: 110vAC, 110vDC, 12vAC, 12vDC, 230VAC, 24vAC, 24vDC, 48vAC, 48vDC, 6vDC

Port Size: 1/4 thread

Function: 2/2 Failsafe Closed

Operation: Direct Acting

Pressure: 0.02 Bar (20 mBar), 0.1 Bar (100 mBar), 0.2 Bar (200 mBar), 0.3 Bar (300 mBar), 0.4 Bar (400 mBar), 0.5 Bar (500 mBar), 0.6 Bar (600 mbar), 0.7 Bar (700 mBar), 0.8 Bar (800 mBar), 1 Bar, 1.2 Bar, 1.3 Bar, 1.4 Bar, 1.5 Bar, 1.6 Bar, 2 Bar, 2.5 Bar, 3 Bar, 3.5 Bar, 4 Bar, 4.5 Bar, 5 Bar, 5.5 Bar, 6 Bar, 6.5 Bar, 7 Bar, 7.5 Bar, 8 Bar, 8.5 Bar

Seals: EPDM, HNBR, NBR, FKM (Viton)

Approvals:: ATEX Exm, IP65

Media: Air, Fluid (Non Aggressive), Gases (Non Aggressive), Oils + Fuels 50cSt Max, Vacuum (Low), Vacuum (Medium), Water

Options required: Mounting Holes

Orifice: 2.3mm

Reviews

★★★★★4.8 / 5 9 reviews

★★★★★

Ordered these 1/4" BRASS solenoid valves for my water system, they arrived the next day. Excellent service and great little control valves too, low power strong and cheap. Thank you very much. They work a treat. Billy.

Reviewed on 02/02/2015 by Billy

★★★★★

12vDC brass solenoid valve for my water droplet photography arrived and works perfectly from my battery and with gravity feed I can control droplet to droplet. Perfect - thank you Connexion.

Reviewed on 28/01/2015 by Flow G

★★★★★

Thanks, ordered 10 of these little 12vdc solenoid valves and 10 arrived the next day, thanks for the extra discount and great service. Excellent little solenoid valve. James.

Reviewed on 02/02/2015 by James

★★★★★

The special offer made the difference and thanks for the price match, really made the whole experience worth while. Good customer support and delivery was on schedule. Best Regards Jeff.

Reviewed on 15/01/2016 by Jeff Pope.

★★★★★

Quick delivery perfect thanks.

Reviewed on 29/04/2016 by Attila. K

★★★★★

Arrived as advertised. Thank you.

Reviewed on 23/05/2020 by James

★★★★★ Verified Purchase

Best price, fastest delivery, friendly help. Could ask for no more. Will definitely buy from in the future. Thank you

Reviewed on 06/06/2025 by John M - Blackburn, United Kingdom

★★★★★ Verified Purchase

Excellent product. Great value. easy to select right model for my needs. Thank you!

Reviewed on 20/08/2025 by Peter B - Clacton-on-Sea, United Kingdom

★★★★★ Verified Purchase

top class service

Reviewed on 15/12/2025 by Andrew M - Castlewellan, United Kingdom

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