P23 1/4" BSP/NPT Direct-Acting 3/2 Poppet Solenoid Valve (Ex d, Low Power)

The P23 is a 3 port, 2 position (3/2) direct-acting balanced poppet solenoid valve designed for a compact footprint while delivering high flow and low power consumption. The valve is available with hazardous area coil options, including Ex d, and is offered with aluminium (standard), stainless steel, or brass body material selections to suit demanding process environments. 

Key benefits

• Direct-acting balanced poppet design for dependable 3/2 switching in a compact package.
• High flow performance with 400 l/min (at 6 bar with 1 bar pressure drop) and Cv 0.4.
• Low power consumption (listed as 3W). 
• Hazardous area Ex d coil option for Zones 1 & 2, rated Ex d IIC T3–T6 with IP66 protection. 
• Thread flexibility: 1/4” BSP standard with NPT available.

Typical applications (non-exhaustive)

Ideal wherever a compact 3/2 valve is required for pneumatic control in hazardous or harsh industrial environments—such as piloting or controlling single-acting pneumatic devices, valve actuators, or process automation systems (application suitability depends on your system design and approvals requirements).

Technical specifications (quick view)

Valve

• Port size: 1/4" BSP (standard); NPT available 
• Function: 3/2 (3 port, 2 position) 
• Working pressure: 0 to 10 bar 
• Flow: 400 l/min (at 6 bar with 1 bar pressure drop) 
• Cv: 0.4 
• Ambient temperature: -20°C to +80°C 

Materials (standard)

• Body: Black anodised aluminium (Dural) 
• Internals: Stainless steel (listed as 316 stainless steel on the product listing) 
• Seals: HNBR (alternative seals available)

Ex d coil (hazardous area)

• Area class: Zones 1 & 2 
• Rating: Ex d IIC T3–T6 
• Ingress protection: IP66 
• Cable entry: M20 x 1.5 
• Magnetic wire class: H 
• Power consumption: 3W 

Voltage options (as listed)

Available in 24V DC, 24V DC low power, 24V AC (50/60 Hz), 110V AC (50/60 Hz) and 240V AC (50/60 Hz), with non-standard voltages available on request. 

Ordering / configuration (how to specify)

When requesting a quote, specify:

1. Approval/coil type (Ex d selection) 
2. Port threads (BSP standard / NPT)
3. Voltage (including low power 24V DC option) 
4. Body material (aluminium / stainless / brass) 
5. Options such as push button manual override (where applicable) 

Downloads & support (CTA)

• Datasheet: P23 BU Series Function Solenoid Valve [P23 BU Ser...noid Valve | PDF], [P23 - 1-4...e Solenoid | PDF]
• For selection help or configuration support: techsales@rosspneumatrol.com | +44 (0) 1254 872 277