3 - WAY MIXING VALVES, FLANGED, SERIES 1000 TYPE: VF3, VDF3
Materials:
Valve body cast iron
Rotor: cast iron
Anchor screws: steel
Cover: aluminium
Bush: aluminium
Ring gaskets : EPDM
Type
VF3, VDF3*
Nominal diameter:
DN
32
50
65
80
100
125
Nominal flow rate:
Kvs m3/h
50 (60*)
70 (80*)
80 (90*)
90 (100*)
110 (125*)
125 (150*)
Rated pressure:
PN
6
Max.working temperature:
t max
110°C
Max. pressure difference:
Dpmax
50 kPa
Max. rotation:
j
90°
Leakage A-AB:
=< 1% z Kvs
Leakage A-B:
=< 0,5% z Kvs
Type of the recommended servomotor:
V200 (18 Nm); M1000 from DN65 (20 Nm)
Identification number
VF3
 7.007.00203.0 7.007.00205.0 7.007.00206.0 7.007.00207.0 7.007.00208.0 7.007.00209.0
VDF3*
 7.007.00210.0 7.007.00212.0 7.007.00213.0 7.007.00214.0 7.007.00215.0 7.007.00216.0

VF 3

VDF 3 		Overall dimensions

Æ
A
B
G
H
I
J
K
L
DN
mm
mm
mm
mm
mm
mm
mm
mm
N°mm
32
32
170
85
15
11
120
90
70
4x11
50
50
180
90
16
14
140
110
90
4x14
65
65
200
100
16
14
160
130
110
4x14
80
80
230
115
19
18
190
150
128
4x18
100
100
260
130
20
18
210
170
148
4x18
125
125
290
145
20
18
240
200
178
8x18
Mixing valve identification :
 Specify the following data for exact valve identification :
Series
Type
Diameter mm
DN
"
1000
VF3
 3 - way with butterfly shut-off and flanges
50
2"
1000
VDF3
 3 way with circular segments and flanges
50
2"
Example: 1000 VF3 50: 3-way mixing valve series 1000 with butterfly shut-off, G2" (DN50), with flanges.

Spare parts code

Description
1
 valve body
2
 bush
3
 rotor
4
 felt + seal washer + O ring + flat gasket + cover + cover fastening screws
5
 bush + O ring + rotor + seal washer + plate + felt + gaskets
6
 handle + handle fastening screws
Application example

Installation diagram for a VF3 3-way mixing valve

Installation diagram for a VDF3 3-way mixing valve - function: mixing

Installation diagram for a VDF3 3-way mixing valve - function: diverting
Note
 Valves are furnished standard with right inlets.
Proceed as follows whenever it is necessary to invert the inlet:
1) remove the manual lever and the metal label
2) remove the valve cover and extract the internal rotor
3) rotate the internal aluminium bush 180° so that the profiled
path is positioned at the opposite side
4) reinstall the internal rotor in the same position
5) reinstall the metal label upside down from its previous position
6) The valve must be installed in the plumbing circuit according to the flow direction specified on the valve.		 Main characteristics
This type of mixing valve is used in central heating system to ensure a hot return to the boiler and consequently achieve thermal operation at sufficiently high temperatures to prevent vapour condensation in the boiler. Vapours, in combination with the products of combustion, can generate corrosive compounds that reduce the operating life of the boiler. MUT valves are furnished with manual control but can be easily motorised at any time using servomotors and valve-motor connections marketed by the manufacturers of regulation components. Rotor rotation angle used for the regulation, is about 90°. Mixing is done by a circular segment rotor in models VDM and by a butterfly valve in models VM.