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Data sheet 

VFS 2

VD.HC.L3.02 | 3

© Danfoss | 2016.11

Installation

Hydraulic connections

Mount according to flow direction as indicated 

on valve body.

Valve mounting

Before mounting the valve be sure that the pipes 

are clean and free from abrasion. It is essential 

that the pipes are lined up squarely with  the 

valve  at each connection and that they are free 

from vibrations. Install the motorized control 

valves with the actuator in a vertical or horizontal 

position but not upside down.

Disposal

The valve must be dismantled and the elements 

sorted into various material groups before 

disposal.

T

max

≤150°C for  AMV(E) 25 (SU/SD), 35

T

max

≤200°C for other AMV(E)

T

max

 = 150°C ... 200°C AMV(E) 25 (SU/SD), 35

Leave sufficient clearance to facilitate the 

dismantling of the actuator from the valve body 

for maintenance purposes.

The valve must not be installed in an explosive 

atmosphere or at an ambient temperature 

higher than 50 °C or lower than 2 °C. It must not 

be subject to steam jets, water jets or dripping 

liquid.

Note 

that the actuator may be rotated up to 360° 

with respect to the valve body by loosening the 

retaining fixture. After this operation retighten.

AMV(E) 25(SU/SD)/35

AMV(E) 85/86

Adapter for 

VFS 2

 DN 15-50

5

o

5

o

AMV(E) 55/56

AMV(E) 65x

Summary of Contents for VFS 2

Page 1: ...15 50 065Z7020 Stem heater 24 V AC DC AMV E 85 86 and and VFS 2 valves DN 65 100 065Z7021 Stem heater 24 V AC DC AMV E 55 56 655 658 659 and VFS 2 valves DN 65 100 065Z7022 Adapter AMV E 25 SU SD AMV...

Page 2: ...If max closing pressure is smaller than 4 bar than the recommended p is the same as closing p 3 Values in parentheses are based on the force of the actuator AMV E 25 SU SD only Technical data Nominal...

Page 3: ...antled and the elements sorted into various material groups before disposal Tmax 150 C for AMV E 25 SU SD 35 Tmax 200 C for other AMV E Tmax 150 C 200 C AMV E 25 SU SD 35 Leave sufficient clearance to...

Page 4: ...hence The largest valve with kVS 10 would give a pressure drop of 36 kPa point D 395 0 55 36 36 authority valve hence Generally the smaller valve would be selected resulting in a valve authority highe...

Page 5: ...mediately upstream of the valve being dropped across the valve when fully open At this condition the steam is travelling at or close to its critical velocity approx 300 m s and throttling will occur o...

Page 6: ...re is found by extending the vertical line C E through point E until it crosses the kVS 25 line F F point E and reading off the flow 1700 kg h 2 For superheated steam Design data Flow rate 500 kg h Ab...

Page 7: ...5 290 484 525 568 145 18 8 23 0 80 310 503 544 587 160 18 8 28 1 100 350 530 571 614 190 22 8 40 7 DN L H H1 k d n number Valve weight kg mm 15 130 237 383 65 14 4 3 6 20 150 237 383 75 14 4 4 3 25 16...

Page 8: ...the right to alter its products without notice This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary eady agreed All t...

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