Invensys Solenoid Valve 230 V – code: T-PF.P12 – Tecma

Invensys 230 V Tecma Solenoid Valve – replacement for electric toilets

The’Invensys 230 V solenoid valve with Tecma code T-PF.P12 (also known as T-PF.P12/V) is a replacement component used in Tecma electric toilets (Thetford Marine) for managing the’flush water inlet. It is a servo-assisted solenoid valve, designed for installations with mains power supply and used in marine and onboard system applications where automatic water flow management is required.

Spare part features and details

The replacement is identified by the original code T-PF.P12 and the variant T-PF.P12/V. It is indicated as a Invensys (VAI) servo-assisted solenoid valve and is used to control the opening/closing of the flush water in Tecma electric toilets.

Technical data available

• Original code: T-PF.P12 / T-PF.P12/V
• Manufacturer: Tecma (Thetford Marine)
• Type: Invensys (VAI) servo-assisted solenoid valve
• Power Supply: 220–240 V AC
• Frequency: ) at
• Power consumption: 6 W
• Recommended operating pressure: 3 bar
• Pressure range: 0.2 – 10 bar
• Threaded connections: 1/2″ female
• Outlet pipe connection: 20 mm
• Flow rate: 0.25 – 12 L/min
• Service: Continuous (100% ED)
• Maximum liquid temperature: 90 °C
• Maximum ambient temperature: 60 °C
• Insulation class: Class F – double insulation (Class II)

Codes and variants

For the correct identification of the spare part, refer to the code shown on the part or in the system documentation. The available documentation mentions:

• T-PF.P12 and T-PF.P12/V as codes associated with this solenoid valve.
• Previous versions with different codes, such as T-PF.P12 and T-PF.P12/B (in brass), mentioned as historical alternatives.

In case of doubt between versions or materials, it is advisable to verify the exact code installed on board before ordering.

Applications and compatibility

The solenoid valve T-PF.P12/V is indicated as compatible with numerous Tecma electric toilets, particularly in versions with power supply 230 V. Among the mentioned series:

• Series Design (X-Light, Privilege, Evolution, Breeze)
• Series Flexi (Silence, Elegance)
• Series Compact (Nano, Compass, EasyFit) in versions with 230 V

It is also reported that, for models produced from 2015 onwards, this is the standard version in plastic material (Invensys/VAI). For earlier productions, different codes and configurations may be present: for this reason, checking the code remains the most reliable method to avoid incompatibilities.

Advantages in maintenance and spare parts

In a nautical maintenance context, replacing the solenoid valve is typically linked to the need to restore the correct control of the rinse water. This spare part, being indicated as original Tecma, allows maintaining the configuration provided by the electric WC manufacturer, simplifying component identification and spare parts warehouse management.

• Original Tecma spare part for restoration and maintenance interventions.
• Automatic management of the rinse water inlet in the electric WC.
• 230 V AC coil with continuous service (data available).
• Servo-assisted, indicated for pressurized water systems (as described).
• Standard connections with threaded connections 1/2″ female and tube outlet 20 mm (data available).

Usage and operational notes

This solenoid valve is intended for mains-powered systems and is used in the rinse circuit of Tecma electric WCs. When replacing, it is good practice to:

• check the code present on the installed component (T-PF.P12 or T-PF.P12/V);
• check that the system is actually in version 230 V;
• verify the correspondence of the connections (1/2" female and 20 mm outlet) with the existing system;
• ensure that operating conditions fall within the indicated values (pressure and temperatures reported in the available data).

For specific applications or in the presence of earlier WC versions, the choice of spare part must be made by comparing the code and installed configuration, avoiding “trial” replacements.

FAQ – Frequently Asked Questions

What is the correct code for this Tecma solenoid valve?

The replacement is identified by the original codes T-PF.P12 and T-PF.P12/V. It is advisable to check the code on the installed component before ordering.

Is this solenoid valve suitable for 230 V systems?

Yes. The indicated power supply is 220–240 V AC (50/60 Hz), so it is intended for mains-powered versions.

What is the purpose of the solenoid valve in the Tecma electric toilet?

It is used to automatically control the rinse water inlet, opening and closing the flow based on the system command.

What connections does the T-PF.P12/V solenoid valve have?

Threaded 1/2" female connections and a 20 mm outlet tube connection are indicated. Verify correspondence with the existing system.

With which Tecma WC series is it indicated as compatible?

It is reported as compatible with various series of Tecma electric toilets, including Design (X-Light, Privilege, Evolution, Breeze), Flexi (Silence, Elegance), and Compact (Nano, Compass, EasyFit) in the 230 V versions.