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© Danfoss | 2016.11

VD.HC.L3.02 | 1 

Seated valve for steam (PN 25)

VFS 2

 – 2-way valve, flange

Data sheet

Description

2-way valve 

VFS 2

DN

kVS

PN

tmax.

Code No. 

(m3/h)

(oC)

15

0.4

25

200

065B1510

0.63

065B1511

1.0 

065B1512

1.6

065B1513

2.5

065B1514

4.0 

065B1515

20

6.3

065B1520

25

10

065B1525

32

16

065B1532

40

25

065B1540

50

40

065B1550

65

63

065B3365

80

100

065B3380

100

145

065B3400

Ordering

Example:

2-way valve, DN 15, k

VS

 1.6, PN 25,

t

max

 200 °C, flange connection

 

-  1×  VFS 2 DN 15 valve 

 

Code No.: 

065B1513

Spare parts 

– stuffing box

DN

Description

Code No.

15

Four PTFE rings  

Seal for valve cover  

Gland ring

Washer

Instructions

065B0001

20
25
32
40
50
65

Three PFTE rings

Gland ring

Instructions

065B0006

80

100

Accessories 

Type

Code No.

Stem heater 24 V AC/DC

(AMV(E) 25, 35 and VFS 2 valves DN 15-50)

065B2171

Stem heater 24 V AC/DC

(AMV(E) 56 and VFS 2 valves DN 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(E) 35 

and VFS 2 DN 15-50

(for media temperatures over 150 °C)

065Z7548

Clutch

(AMV(E) 56 and VFS 2 valves DN 15-50)

065Z7551

VFS 2 valve is a range of 2 port flanged valve 

for chilled water, LPHW, MPHW, HPHW (low, 

medium or high pressure hot water) and steam 

applications. 

The valve is designed to be combined with 

following actuators:

•   DN 15-50  AMV(E) 25 (SU/SD), AMV(E) 35,    

 

AMV(E) 56 (with clutch 

065Z7551

•   DN 65-100  AMV(E) 55,  AMV(E) 56, AMV(E) 85, 

 

AMV(E) 86, AMV (E) 65x

Features:

•  Logarithmic characteristic

•  Control range 30:1 / 50:1 / 100:1

•  Suitable for steam applications

Main data:

•   DN 15-100

•   k

VS

 0.4-145 m

3

/h

•  PN 25

•   Medium: 

Circulation water/glycolic water up to 50 % /

steam (max. Δp =  6 bar)

•   Temperature: 

  2 (–10

1) 

) … 200 °C

1)

 At temperatures from -10 °C up to +2 °C use stem heater

•   Logarithmic characteristic

•   Flange PN 25 connections

•  Compliance with Pressure Equipment 

Directive 2014/68/EU.

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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