Danfoss VL 2, VL 3 Data sheet

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

k

DN

15

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

VS

(m3/h) (oC)

0.63

1.0 065Z0372

1.6 065Z0373

2.5 06 5Z0374

4.0 065Z0375

T

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

1)

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

heater

• Flange PN 6 connections

3-way valve VL 3

k

DN

15

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

VS

(m3/h) (oC)

0.63

1.0 065Z0352

1.6 065Z0353

2.5 0 65Z0354

4.0 065Z0355

T

120

max

Code No.

065Z0351

© Danfoss | 2021.06 AI133286476129en-010803 | 1

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

k

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

VS

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

o

C 2(–10

3)

) … 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

4)

Stuffing box sealing EPDM

1)

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)

2)

for actuato r AMV(E) 55

3)

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

4)

At DN 100 red b ronze CuSn5Zn5Pb5 (Rg 5)

VS

2)

2)

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

B



Cappacity

B

A



A

Cappacity

AB

B

A



A

Installation

AMV(E) 335/435

Stroke

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)

5D

FVR/FVF

Fig. 3: Mixing valve used in diver ting application

2D

AMV(E)

5D

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