Danfoss VL 2, VL 3 Data sheet

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Data sheet

Seated valves (PN 6)

VL 2 – 2-way valve, ange VL 3 – 3-way valve, ange

Description

Ordering

Example: 2-way valve; DN 15; kVS 1,6; PN 6; T

120 °C; flange connection

max

- 1× VL 2 DN 15 valve Code No.: 065Z0373

VL 2

VL 2 and VL 3 valves provide a quality, cost effective solution for most water and chilled applications.

The valves are designed to be combined with following actuators:

• DN 15-50 with AMV(E) 335, AMV(E) 435 or AMV(E) 438 SU actuators.

With AMV(E) 25 (SU/SD) or AMV(E)

35 actuators (with adapter 065Z0311).

• DN 65-80 with AMV(E) 335 or AMV(E) 435 actuators. With AMV(E) 56 actuator (with adapter 065Z0312).

• DN 100 with AMV(E) 55 or AMV(E) 56, AMV(E) 655, AMV(E) 658 SU/SD or AMV(E) 659 SD actuators.

Combinations with other actuators could be seen under Accessories.

2-way valve VL 2

20 6.3 065Z0376

25 10 065Z0377

32 16 065Z0378

40 25 0 65Z0379

50 40 065Z0380

65 63 065Z0381

80 100 065Z0382

100 145 065Z3426

(m3/h) (oC)

0.63

1.0 065Z0372

1.6 065Z0373

2.5 06 5Z0374

4.0 065Z0375

120

max

Code No.

065Z0371

VL 3

Features:

• Bubble tight design DN 15-80

• Snap mechanical connection together with AMV(E) 335, AMV(E) 435

• Dedicated 2 and 3-port valve

• Suitable for diverting applications (3-port)

Main data:

• DN 15 -10 0

• kVS 0,63-145 m3/h

• PN 6

• Temperature:

- Circulation water/glycolic water up to 50 %:

2 (–10 1)) … 120 °C

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

heater

• Flange PN 6 connections

3-way valve VL 3

20 6.3 0 65Z0356

25 10 065Z0357

32 16 065Z0358

40 25 065Z0359

50 40 065Z0360

65 63 065Z0361

80 100 065Z0362

100 145 06 5Z3413

(m3/h) (oC)

0.63

1.0 065Z0352

1.6 065Z0353

2.5 0 65Z0354

4.0 065Z0355

120

max

Code No.

065Z0351

Data sheet Seated valves VL 2, VL 3

Ordering (continued)

Accessories - Adapter

DN Actuators

15- 50 AMV(E) 25, 35 4.0 06 5Z03 11

65-80 AMV(E) 56 2.5 065 Z0312

max. ∆p

(bar)

Code No.

Accessories - Stem heater

DN Actuators

15- 80 AMV(E) 335, 435

15- 50 AMV(E) 438 SU enclosed

15- 50 AMV(E) 25/35 06 5Z03 11

65-80 AMV(E) 56 06 5Z0312

100 AMV(E) 55, 56, 65x 24/15 065Z7020 /

Power supply Code No. Code No.

(V/ VA) Stem Heater Adapter

24/40 065Z0 315

Service kits

Typ e DN Code No.

15 065Z0321

20 065Z0322

25 065Z0323

Stuffing box

32 065Z0324

40/50 065Z0325

65/80 065Z0327

100 065B13 60

Technical data

Nominal diameter DN 15 20 25 32 40 50 65 80 10 0

value m3/h 0.63 1.0 1.6 2.5 4.0 6.3 10 16 25 40 63 100 145

Stroke mm 10 15 20 30

Control range 30:1 50:1 100 :1

Control characteristic LOG: port A-AB; LIN: port B-AB

Cavitation factor z ≥ 0,4

Leakage

A - AB bubble tight design 0.05 % of k

B - AB ≤ 1.0 % of kVS

Nominal pressure PN 6

Max. closing pressure 1) (mixing)

Max. closing pressure 1) (diverting) 1 0.6 0.3

bar

4 2.5 1.0

Medium Circulation water / glycolic water up to 50 %

Medium pH Min. 7, Max. 10

Medium temperature

C 2(–10

) … 120

Connections Flange PN 6 acc. to EN 1092-2

Materials

Valve body Grey cast iron EN-GJL-250 (GG-25)

Valve stem Stainless steel

Valve cone Brass

Stuffing box sealing EPDM

Maximum p ermissible differe ntial pressure across the valve ref fered for the whole ac tuating range of motorised val ve (a function of

actuator’s performance)

for actuato r AMV(E) 55

At temperature s from −10 up to +2 °C use stem heater

At DN 100 red b ronze CuSn5Zn5Pb5 (Rg 5)

2 | AI133286476129en-010803 © Danfoss | 2021.06

Data sheet Seated valves VL 2, VL 3

Pressure temperature diagram

PN 6

EN -G JL-2 50 (GG -25)

Maximum allowed operating pressure as a function of medium temperature (anges according to EN 1092-2).

Valve characteristics Valve characteristics log (2-way) Valve characteristics log/lin (3-way)

A+BAB



Cappacity



Cappacity



Installation

AMV(E) 335/435

Stroke

AMV(E) 25(SU/SD)/35/438 SU

AMV(E) 55/56

AMV(E) 65x

AI133286476129en-010803 | 3© Danfoss | 2021.06

Data sheet Seated valves VL 2, VL 3

Valve mounting

Before valve mounting the pipes have to be cleaned and free from abrasion. Valve must be mounted according to flow direction as indicated on valve body. Mechanical loads of the valve body caused by the pipes are not allowed. Valve should be free of vibrations as well.

Installation of the valve with the actuator is allowed in horizontal position or upwards. Installation downwards is not allowed.

Always install the valve with the arrow on the body in the same direction as the flow. In order to avoid turbulence, which will affect the measuring accuracy, it is recommended to have a straight length of pipe up and down stream from the valve as shown (D - diameter of pipe).

Mixing

Fig. 1: Mixing or diverting connection

Diverting

Note: Install a strainer upstream of the valve (e.g. Danfoss FVR/ FVF)

FVR/FVF

Fig. 3: Mixing valve used in diver ting application

AMV(E)

Fig. 2: Mixing valve used in mixing application

Mixing or diverting connection

3-way valve can be used either as mixing or diverting valve (fig.1).

If 3-way valve is installed as mixing valve meaning that A and B ports are inlet ports, and AB port is outlet port it can be installed in mixing (fig.2) or diverting application (fig.3). 3-way valve can be also installed as diverting valve in diverting application (fig.4) meaning that AB port is inlet and A and B ports are outlets.

Fig. 4: Diverting valve used in diverting application

Note: Maximal closing pressure for mixing and diverting installation are not the same. Please refer to values stated in Technical data section.

4 | AI133286476129en-010803 © Danfoss | 2021.06

Data sheet Seated valves VL 2, VL 3

a authority, Valve







5.0

∆×

∆

62.0

557.90

7.90

authority valve hence 





50.39

5536

authority valve hence 





Sizing

Flow Rate (liquid with specific a gravity of 1) l/sec m3/h

max

Δp

FLOW Pressure drop kPa (100 kPa = 1bar = ~ 10 m H2O)

Example

Design data:

Flow rate: 6 m3/h System pressure drop: 55 kPa

Locate the horizontal line representing a flow rate of 6 m3/h (line A-A). The valve authority is given by the equation:

Where:

Δp1 = pressure drop across the fully open valve Δp2 = pressure drop across the rest of the circuit

with a full open valve

The ideal valve would give a pressure drop equal to the system pressure drop (i.e. an authority of 0,5):

if:

Δp1 = Δp

In this example an authority of 0,5 would be given by a valve having a pressure drop of 55 kPa at that flow rate (point B). The intersection of line A-A with a vertical line drawn from B lies between two diagonal lines; this means that no ideally-sized valve is available.

The intersection of line A-A with the diagonal lines gives the pressure drops stated by real, rather than ideal, valves. In this case, a valve with kVS 6,3 would give a pressure drop of 90,7 kPa (point C):

The second largest valve, with kVS 10, would give a pressure drop of 36 kPa (point D):

Generally, for a 3 port application, the smaller valve would be selected (resulting in a valve authority higher than 0,5 and therefore improved control). However, this will increase the total pressure and should be checked by the system designer for compatibility with available pump heads, etc. The ideal authority is 0,5 with a preferred range of between 0,4 and 0,7.

AI133286476129en-010803 | 5© Danfoss | 2021.06

Data sheet Seated valves VL 2, VL 3

Design

(Design variati ons are possible)

VL 2 DN 15-80

1. Valve body

2. Valve insert

3. Valve cone

4. Valve stem

5. Moving valve seat (pressure relieved)

6. Stuffing box

VL 3 DN 15-80

1. Valve body

2. Valve insert

3. Valve cone

4. Valve stem

5. Valve seat

6. Pressure relieve chamber

7. Stuffing box

VL 2 DN 100

1. Valve body

2. Valve insert

3. Valve cone

4. Valve stem

8. Blind flange

VL 3 DN 100

1. Valve body

2. Valve insert

3. Valve cone

4. Valve stem

Data sheet Seated valves VL 2, VL 3

Dimensions

min. 20,5

45°

min . 100

VL 2 (DN 15-80) AMV(E) 335, 435 + AMV(E) 438 SU + VL 2 (DN 15-80) VL 2 (DN 15-50)

AMV(E) 25 (SU/SD),35 + VL 2 (DN 15-50) + adapter 065Z0311

mi n. 150

AMV(E) 56 +

VL 2 (DN 65-80) +

adapter 065Z0312

Typ e DN

VL 2

Note:

If stem heater is use d dimension H1 is increased for 28 m m and H2 for 32 mm.

L H H1H2H3k d2

mm (kg)

15 130 40 191 216 - 55 11 4 1.48

20 150 45 194 218 - 65 11 4 2.07

25 160 50 197 222 - 75 11 4 2.59

32 180 60 202 226 - 90 14 4 3.82

40 200 65 213 237 - 100 14 4 5.28

50 230 70 218 242 - 110 14 4 6. 74

65 290 88 254 - 428 130 14 4 13.90

80 310 95 258 - 432 15 0 19 4 17.2 2

Weight

Data sheet Seated valves VL 2, VL 3

Dimensions (continued)

min. 20,5

45°

H H

min . 100

VL 3 (DN 15-80) AMV(E) 335, 435 + AMV(E) 438 SU + VL 3 (DN 15-80) VL 3 (DN 15-50)

AMV(E) 25 (SU/SD),35 + VL 3 (DN 15-50) + adapter 065Z0311

AMV(E) 56 + VL 3 (DN 65, 80) + adapter 065Z0312

Typ e DN

VL 3

Note:

If stem heater is use d dimension H1 is increased for 28 m m and H2 for 32 mm.

L H H1H2H3k d2

mm (kg)

15 130 63 191 216 - 55 11 4 1.93

20 150 70 19 4 218 - 65 11 4 2.68

25 160 75 197 222 - 75 11 4 3.59

32 180 80 202 226 - 90 14 4 5.17

40 200 90 230 255 - 10 0 14 4 7.0 8

50 230 100 243 267 - 110 14 4 10. 11

65 290 120 254 - 428 13 0 14 4 16.15

80 310 155 270 - 432 150 19 4 22.36

Weight

Data sheet Seated valves VL 2, VL 3

Dimensions (continued)

45°

VL 2 (DN 100) VL 3 (DN 100)

mi n. 150

min . 81

AMV(E) 55, 56 +

VL 2, VL 3 (DN 100)

Typ e DN

VL 2

VL 3 175 34.0

Note:

If stem heater is use d dimension H remains the sam e.

100 350

L H H1 H2 H3 k d2

mm (kg)

196

406 317 450 170 18 4

AMV(E) 65x +

VL 2, VL 3 (DN 100)

Weight

39.0

Data sheet Seated valves VL 2, VL 3

Danfoss VL 2, VL 3 Data sheet

Specifications and Main Features

Frequently Asked Questions

User Manual