Honeywell V5012C PRODUCT DATA

Kombi-DP Diaphragm Unit

RETROFIT AUTOMATIC DP CONTROLLER

Design

The diaphragm unit consists of:

• Diaphragm housing with connections for impulse tube and valve

• Spindle and tappet

• Supply valve adapter to install impulse tube to supply

mains valve (suitable for V5000 Kombi-3-plus RED and V5100 Stop Valve-3)

• 4 x 1 mm impulse tube with compression fittings, length 800 mm

• 4 mm Allan key to change the pre-setting

Materials

• Diaphragm housing, spindle and diaphragm spring made of stainless steel

• Connection for impulse tube and valve, supply valve adapter, compression fittings and tappet made of brass

• Diaphragm and soft seals made of EPDM

• Impulse tube made of copper

V5012C

PRODUCT DATA

Application

The V5012C Kombi-DP diaphragm unit is installed onto a V5010 Kombi-3-plus BLUE or V5032 Kombi-2-plus return mains balancing valve and connected to a V5000 Kombi-3plus RED or V5100 Stop Valve-3 supply mains valve with the supplied impulse tube.

It is used in systems with variable volume flows, for example two-pipe heating systems or district heating exchangers, and supports a hydronic balance by keeping the differential pressure over consumers at a constant pre-set level even under changing flow conditions.

The V5012C Kombi-DP diaphragm unit can be fitted to the Kombi-Valves at any time, even when the system is under pressure and in operation – operation of the system does not have to be interrupted to install the V5012C Kombi-DP.

Features

• Retrofittable without interrupting operation of the

system

• Rugged design

• Two pre-setting ranges available: 0.1...0.3 bar or

0.3...0.6 bar differential pressure

• Suitable for V5010 Kombi-3-plus BLUE DN10...DN40

and V5032 Kombi-2-plus DN15...DN40

Specifications

Medium Water or glycol-water mixture,

quality to VDI 2035

pH-value 8...9.5

Operating temperature 2...130°C (36...266°F)

Operating pressure max. 10 bar (145 psi)

Differential pressure max. 2.0 bar (29 psi)

Differential pressure pre-setting range

Factory setting V5012C0103: 0.1 bar (1.45 psi)

vs (cv)-values see flow diagram and remarks

V5012C0103:

0.1…0.3 bar (1.45…4.35 psi)

V5012C0306:

0.3…0.6 bar (4.35...8.70 psi)

V5012C0306: 0.3 bar (4.35 psi)

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V5012C KOMBI-DP

Function

The V5012C Kombi-DP diaphragm unit is installed onto a V5010 Kombi-3-plus or V5032 Kombi-2-plus return mains balancing valve and connected to a supply mains valve with the supplied 4 x 1mm copper impulse tube and compression fittings. Suitable supply valves are the V5000 Kombi-3-plus RED or the V5100 Stop Valve-3 which are both compatible with the supply valve adapter of the V5012C Kombi-DP kit.

The pressure of the supply pipeline is led to the Kombi-DP via the impulse tube and acts onto the top of the diaphragm, the pressure of the return pipeline is led to the Kombi-DP through the return valve and acts onto the bottom of the diaphragm.

Dimensions

When the supply pressure increases, the diaphragm inside the Kombi-DP is pushed down against the return pressure. The diaphragm acts onto the insert of the connected return valve and the flow is throttled.

When the supply pressure decreases, the diaphragm inside the Kombi-DP is pushed open by the return pressure. The diaphragm moves up, releasing the insert of the return valve and the flow increases.

The desired differential pressure can be preset from 0.1...0.3 or from 0.3...0.6 bar, depending on the type used.

Additional space required for optional VA2503B001

Installation space required

Additional space required for optional VA2503B001

Installation space required

Fig. 1. V5012C Kombi-DP diaphragm unit with V5010 Kombi-3-plus BLUE or V5032 Kombi-2-plus

Table 1. Dimensions

Valve size V5012C0103 V5012C0306

DN h7 l5 h7 l5

135 95 145 102

135 95 146 103

150 100 161 111

150 90 161 101

185 105 196 116

185 100 196 111

NOTE: The V5012C is not supplied with valve. All dimensions in mm.

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