Neomitis 28mm 2 Port Motorised Zone Valve | MTV228 | Spring Return

Description

The Neomitis MTV228 28mm 2 Port Motorised Zone Valve is a reliable spring return zone valve for controlling water flow around central heating and domestic hot water circuits. Its normally closed operation, potential free end switch and standard 28mm compression connections make it a practical choice for homeowners upgrading heating controls and for installers zoning larger systems.

When powered, the valve opens to allow heated water through the selected zone, when power is removed, the spring return actuator closes the valve automatically. The integrated end switch can be used to bring on the boiler and/or pump only when a zone genuinely requires heat, helping to improve comfort and reduce unnecessary energy use.

28mm

Compression Connections

2 Port

Motorised Zone Valve

230V

50Hz Supply

6W

Power Consumption

10 Bar

Maximum Static Pressure

2 Years

Manufacturer Warranty

Useful information: The valve is supplied with a 1m five core cable using industry standard colour coded wiring, helping to simplify connection to compatible heating controls.

Compatibility note: This is a 28mm compression model. Confirm your pipe size and system layout before ordering, a separate 22mm version is available for smaller pipework.

Safety and installation: Install the valve with the flow arrow pointing in the direction of water flow. Electrical work must be carried out in accordance with BS 7671 by a competent person, with the system correctly earthed, fused and provided with a means of isolation incorporating at least 3mm contact separation in all poles.

Key Features

Accurate Zone Control

The 2 port motorised valve opens and closes a single heating or hot water circuit, allowing independent control of individual zones.

Spring Return Operation

A normally closed, spring return design closes the valve when power is removed, supporting dependable system control.

Boiler & Pump Control

The potential free end switch enables electrical control of the boiler and/or pump when the zone valve opens.

Replaceable Actuator

The actuator can be replaced without draining down the heating system, helping to reduce maintenance time and disruption.

Manual Filling Lever

A manual lever allows the valve to be held open during filling, venting or draining, making commissioning and servicing more straightforward.

Quiet, Efficient Design

The metal bodied valve is designed for quiet operation and low 6W power consumption, with standard compression fittings for straightforward installation.

Technical Specifications

General

Brand

Neomitis

Model / MPN

MTV228

EAN / GTIN

3760025250138

Product Type

2 Port Motorised Zone Valve

Warranty

2 Years

Electrical

Voltage

230V~ 50Hz

Power Consumption

6W

Cable

1m, five core, colour coded

End Switch

Potential free end switch for boiler and/or pump control

Hydraulic & Operating Data

Valve Action

Normally closed, spring return

Connection Size

28mm compression

Maximum Static Pressure

10.0 Bar

Fluid Temperature

+5°C to +80°C

Maximum Ambient Temperature

+50°C

Dimensions & Construction

Housing

Metal

Overall Length (A)

87mm

Width (B)

55mm

Height (C)

60mm

Centre-to-Centre Dimension (D)

117mm

Depth (E)

108mm

Frequently Asked Questions

What is the Neomitis MTV228 used for?

It controls the flow of water in a central heating or domestic hot water zone. Used with controls such as a room thermostat, cylinder thermostat and programmer, it helps direct heat only where it is required.

Is this valve normally open or normally closed?

The MTV228 is a normally closed, spring return valve. It opens when powered and closes automatically when the electrical supply is removed.

Can it control my boiler and pump?

Yes. The valve includes a potential free end switch that can be wired to control the boiler and/or pump once the zone valve has opened.

Can the actuator be replaced without draining the system?

Yes. The actuator is replaceable without draining down the system, which can make future maintenance quicker and less disruptive.

How should the valve be installed?

Fit the valve with the flow arrow in the direction of water flow. It may be mounted vertically or horizontally, provided the valve head is not positioned below the horizontal level of the pipework. Use the manual lever when filling, venting or draining the system.

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Room Dimensions

Length (in m):

Width (in m):

Height (in m):

Room Type

Living Room

Bedroom

Kitchen

Bathroom

Conservatory

Hallway

Glazing Type

Single Glazed

Double Glazed

Triple Glazed

External Walls

0 Wall

1 Wall

2 Walls

3 Walls

4 Walls

Insulation Level

Poor

Average

Good (New Build)

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Required Heating

0

Watts

0

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