ESBE MBA132 3-Way Motorised Ball Valve DN25 | 43102800 | 230V AC

Description

The ESBE MBA132 3-way motorised ball valve is a diverting valve with 2-point actuator designed for heating and cooling systems. This DN25 version (art. no. 43102800) is supplied with external-thread adaptors giving G1" connections on all three ports, ready to fit into standard 1" pipework.

The 230V AC actuator is switched by a simple on/off 2-point signal and comes with a 0.85 m connection cable, a built-in auxiliary switch and an anti-condensation resistor to protect the circuit board. The valve is air bubble tight to EN 12266-1, with a nickel-plated brass body, PTFE seat and a Kvs of 11.3 m³/h.

DN25

Nominal size, G1" connections

PN32

3.2 MPa (32 bar) working pressure

11.3

Kvs value (m³/h)

0–90°C

Media temperature

230V AC

2-point actuator, 50 Hz

40 s

Running time for 90°

Electrical safety

The actuator operates at 230V AC mains voltage. Isolate the supply before wiring and have the electrical connection made by a competent person in line with BS 7671 and Part P. The actuator is protection class II and rated IP44.

Check before you order

This page covers art. no. 43102800, the DN25 version with adaptors (G1"). The DN25 MBA132 without adaptors has G1¼" connections and a different part number. This is a 2-point (on/off) actuator for diverting duties; it is not a modulating valve.

Fitting note

The actuator attaches to the ball valve with a metallic spigot, so it can be assembled and removed quickly and securely. The ball and actuator have a 90° operating range.

Key Features

Air Bubble Tight

Internal leakage rate B and external leakage rate A to EN 12266-1, both air bubble tight.

Robust Brass Construction

Nickel-plated brass body and ends, chrome-plated brass ball, PTFE seat and washer, with FPM and HNBR O-rings.

2-Point 230V AC Actuator

10 Nm torque with a 40 second run time across 90°. Motor power consumption is just 3.5 W.

Auxiliary Switch Included

Built-in auxiliary switch rated 6(1) A 230V AC for end-position feedback or interlocking other equipment.

Anti-Condensation Resistor

Integral anti-condensation resistor (up to 5 W) helps prevent condensation forming on the electronic circuit board.

Quick, Secure Actuator Fit

Metallic spigot mounting and a pre-fitted 0.85 m cable make installation and later actuator replacement simple.

Technical Specification

General

Manufacturer

ESBE

Series / model

MBA130 series, MBA132 (external thread with adaptors)

Product code

43102800

Valve type

3-way diverting motorised ball valve

Application

Heating and cooling systems

Valve

Nominal diameter

DN25

Connections (A, B, C)

G 1" external thread, ISO 228/1, with adaptors

Pressure class

PN32

Working pressure

3.2 MPa (32 bar)

Kvs value

11.3 m³/h at 1 bar pressure drop

Media temperature

Min. 0°C, max. +90°C

Suitable media

Heating water (VDI 2035); water/glycol mixtures up to 50%

Valve torque

Less than 4 Nm at nominal pressure

Leakage rate (EN 12266-1)

Internal: B, air bubble tight. External: A, air bubble tight

Weight

1.46 kg

Materials

Body and body end

Brass CW 617N, nickel plated

Ball

Brass CW 617N, chrome plated

Shaft

Brass CW 614N, chrome plated

Seat and washer

PTFE

O-ring / shaft O-ring

FPM / HNBR

Gasket

Heat-resistant fibre

Union and nut

Brass CW 617N, nickel plated

Actuator

Power supply

230V AC ±10%, 50 Hz

Control signal

2-point SPST (on/off)

Torque

10 Nm

Running time (90°)

40 seconds

Power consumption

Motor operation 3.5 W; anti-condensation resistor up to 5 W

Auxiliary switch rating

6(1) A 230V AC

Connection cable

0.85 m, pre-attached

Ambient temperature

Min. 0°C, max. +50°C

Enclosure rating

IP44

Protection class

II

Spare actuator (art. no.)

47100100, MBA100 2-point 230V AC

Compliance

Declared directives

LVD 2014/35/EU, EMC 2014/30/EU, RoHS3 2015/863/EU, PED 2014/68/EU article 4.3

Sizing and Application Notes

Select the valve from its Kvs value of 11.3 m³/h against the heat demand (kW) and design temperature difference (Δt) of the circuit. For applications other than radiator or underfloor heating, keep the maximum pressure drop below 2 bar to avoid flow noise. Where water/glycol mixtures exceed 20% glycol, the pump data must be checked.

Frequently Asked Questions

What does a 2-point control signal mean?

The actuator is driven by a simple on/off (2-point SPST) signal, moving the ball through its 90° range in about 40 seconds. It is intended for on/off diverting duties rather than modulating control.

What connections does this version have?

Art. no. 43102800 is the DN25 version with adaptors and has G 1" external-thread connections (ISO 228/1) on ports A, B and C.

Can I use it with glycol?

Yes. The valve handles heating water to VDI 2035 and water/glycol mixtures up to 50%. Above 20% glycol, check the circulation pump data for the system.

What are the temperature and pressure limits?

Media temperature is 0°C to +90°C and working pressure is 3.2 MPa (32 bar), PN32. The actuator's ambient temperature range is 0°C to +50°C, with IP44 protection.

Can the actuator be replaced separately?

Yes. The actuator fits via a metallic spigot for simple assembly and removal, and the replacement MBA100 2-point 230V AC actuator is available under art. no. 47100100.

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