Key Features

✓ 3/4" Irrigation Solenoid Valve
✓ 2/2 Way Normally Closed
✓ Servo Assisted Valve Design
✓ 0.65 Bar Minimum Differential
✓ 0.65–10 Bar Working Pressure
✓ Large 25mm Flow Orifice
✓ 126.9 L/min Water Flow
✓ Anti-Water Hammer Design
✓ Integrated Flow Controller
✓ Manual Override Included
✓ External Bleed Screw
✓ Removable Metering Pin
✓ Easy Cleaning Without Disassembly
✓ UV Resistant PA66 Body
✓ Glass-Reinforced Construction
✓ Stainless Steel Internals
✓ NBR Seals & Gaskets
✓ +60°C Maximum Water Temperature
✓ IP66 Weatherproof Coil
✓ 100% Continuous Duty
✓ AC & DC Voltage Options
✓ Optional NPT Thread

Datasheets

3/4" Irrigation Water Solenoid Valve 2/2 NC 0.65–10 Bar

★★★★★ 5.0 / 5 (5 reviews)

£24.11 incl. VAT £20.09 ex. VAT

-27% Was £33.20 incl. VAT

Brand: Connexion

Model: PN22506A

Stock: 1622 in stock

Read Full Description

Description

3/4" Irrigation Water Solenoid Valve – PN22506A


The PN22506A is a 3/4" normally closed irrigation solenoid valve designed for reliable automatic control of water in irrigation, sprinkler, landscaping and agricultural watering systems.

Featuring a heavy-duty glass-reinforced UV-resistant PA66 body, large 25mm flow orifice and integrated flow controller, the PN22506A provides high water flow while remaining lightweight and resistant to corrosion and outdoor environments.

The valve incorporates anti-water hammer operation, manual override and an external bleed screw with removable metering pin, allowing straightforward commissioning, flow adjustment and cleaning without dismantling the complete valve.

Valve Function & Operation

Function: 2/2 way normally closed
Operation: Servo / pressure assisted
The PN22506A remains closed when electrically de-energised and opens when power is applied to the solenoid.
Its servo-assisted design uses the water pressure differential across the diaphragm to provide reliable opening and closing of the large 25mm flow passage.
Minimum pressure differential: 0.65 Bar
Maximum working pressure: 10 Bar

High Flow Irrigation Design

Port: 3/4" BSPT
Optional: NPT thread
Orifice: 25mm
Water flow: 126.9 L/min at 1 Bar pressure drop

Integrated Flow Controller

The PN22506A incorporates a manual flow controller, allowing the maximum water flow through the valve to be adjusted to suit the irrigation system.
This is useful for balancing irrigation zones, controlling sprinkler performance and limiting excessive flow without requiring a separate downstream flow-control valve.

Anti-Water Hammer Design

The valve is designed to provide controlled closing of the water flow, helping reduce hydraulic shock within irrigation pipework.
This makes the PN22506A particularly useful in automated irrigation systems where repeated electrical switching can otherwise produce water hammer, pipe vibration and pressure surges.

Manual Override & External Bleed

A manual override allows the irrigation valve to be operated locally without relying solely on the electrical controller.
The external bleed arrangement incorporates a removable metering pin, providing access for cleaning and maintenance without requiring complete disassembly of the valve.
This is particularly useful in irrigation systems where sediment or small particles can gradually restrict small pilot passages.

Construction & Materials

Body: Glass-reinforced PA66
Properties:
UV resistant
Corrosion resistant
Internals and bolts:
Stainless steel
Seals and gaskets: NBR
Coil: Resin moulded

Water Performance

Media: Water
Working pressure: 0.65 to 10 Bar
Maximum water temperature: +60°C
Maximum viscosity: 22 cSt
Ambient temperature: 0°C to +60°C
Mounting: Any position
IP66 Solenoid Coil
Protection: IP66
Insulation: Class F, 155°C
Duty cycle: 100% continuous
Connection: Flying lead wires

AC power:
12.5VA

DC power:
12.5 Watts
Voltage tolerance:
±10%

Voltage Options

Available AC voltages:
24V AC
110V AC
230V AC – 50/60Hz
Available DC voltages:
12V DC
24V DC
This gives the PN22506A compatibility with conventional mains-powered irrigation controls as well as low-voltage 12V and 24V DC control systems.

Typical Applications

Agricultural irrigation
Automatic sprinkler systems
Landscape irrigation
Greenhouse watering
Underground irrigation systems
Garden watering systems
Water distribution systems
Automated watering equipment
Irrigation control panels
The combination of high flow, outdoor-resistant PA66 construction and manual flow adjustment makes the PN22506A particularly well suited to irrigation and sprinkler water control.

Other PN225A Sizes

The same PN225A irrigation valve platform is also manufactured in larger sizes, including 1", 1½", 2", 3" and 4", with flow capacities increasing substantially with connection size. Normally closed and latching versions are listed by the manufacturer.
For this page, though, I'd keep the SEO focus firmly on 3/4" irrigation solenoid valve / water solenoid valve / sprinkler valve rather than trying to rank the individual PN22506A page for the whole range.

Related Products & Categories


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Irrigation Solenoid Valves

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View Technical Specification

Technical Specification

Brand: Connexion

Model: PN22506A

Width: 44.00 mm

Height: 133.00 mm

Depth: 119.00 mm

Weight: 0.51 kg

Valve / Product Type: Solenoid Valve

Body Material: Nylon

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

Port Size: 3/4 thread

Function: 2/2 Failsafe Closed

Operation: Pressure Assisted

Pressure: 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, 9 Bar, 10 Bar

Seals: NBR

Approvals:: IP65, IP66

Media: Water

Options required: Anti Water Hammer, Flow Control, Manual Override

Orifice: 25mm

Reviews

★★★★★5.0 / 5 5 reviews

★★★★★

Excellent item, quick delivery.

Reviewed on 13/07/2020 by John

★★★★★ Verified Purchase

Super. Much cheaper than others I have bought before on other online shops. Chesper delivery and super fast. Also, they're great on the phone - helped me make sure it was the right model / type. Will definitely buy more from them

Reviewed on 21/05/2025 by Claudio P - Leeds, United Kingdom

★★★★★ Verified Purchase

Having bought a couple of these excellent low-cost valves a year or so ago I have just bought some more. They have proved to be very rugged, easy to control and very reliable. There have been no problems with letting by and they have never failed to open. Not needed by me as of yet but always a welcome site to see spares supported by the supplier Solenoid Valve World, who ship rapidly in my experience. Valve and supplier are both first class.

Reviewed on 29/05/2025 by Mark E - United Kingdom

★★★★★ Verified Purchase

Excellent service. Great to be able to get something like this without having to buy from the US. Works perfectly in my watering system. Will know where to go in future if I need again. Thank you.

Reviewed on 19/06/2025 by Raymond C - Bradford, United Kingdom

★★★★★ Verified Purchase

Great product great price

Reviewed on 12/08/2025 by John M - Pickering, United Kingdom

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