Danfoss VDH 30EC Data sheet

Data sheet

Directional control valve
VDH 30EC 4/3
For Cetop 3 flange mounting (ISO 4401)
and inline mounting

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Data Sheet | Directional Control Valve VDH 30EC 4/3

Introduction The VDH 30 EC is designed for controlling the

direction of water ow.
The valves are designed for tap water, i.e. without
additives (EU-Directive 98/83/EC).

1. Armature

2. O-ring

3. Orice

4. O-ring

5. O-ring

6. Plug

7. Spring

8. Poppet

9. Orice insert

10. Screw

11. O-ring

Function

The directional valves are pilot operated On/O
seat valves electrically activated by 4 coils.
The valves are designed according to the seat
valve principle where each individual seat valve is
controlled by its own pilot stage.

7

6

5

8

1

2

3

4

11

10

9

This valve type contains 4 seat valves altogether:
two inlet valves and two outlet valves. As each
seat valve is individually controlled by its own
pilot, this design oers many
dierent valve congurations to the end user.

Features

• Installable on all Cetop 3 blocks and inline
blocks

• Corrosion resistant surfaces

• Easy-to-clean surfaces

Versions The valve housing comes in standard version

in stainless steel AISI 304 (W. No. 1.4301) or
ISI 316 (W. No. 1.4401)

Temperature

Storage temperature:

• -40°C to +70°C [ -40 to 158 °F] – provided
that the valve is drained of uid and stored
”plugged”

Operation on (clean) water:

• Fluid temperature and ambient temperature:
+3°C to +50°C [37 to 122 °F]

Antifreeze Protection

If a system requires antifreeze protection, Danfoss
recommends Dowcall N or Chillsafe mono propyl­ene glycol from the Dow Chemical Company
and Arco Chemical Company, respectively. Both
antifreezes are biologically degradable and must
be used together with demineralized water.

• The seat valve design ensures minimum
leakage

• High degree of enclosure, IP67

• Many valve congurations available

The valve is available as a Normally Close
valve (NC) or in a combination of Normally
Open (NO) and Normally Closed (NC

Operation on water containing antifreeze:

• Fluid temperature and ambient temperature:

-30°C 1) to +50°C [-22 to 122 °F]

1)

please see paragraph on antifreeze protection

Mixing ratio must be:

• min. 30% antifreeze and 70% demine­ ralized water providing frost protection to

–13°C [9 °F] and preventing biolm in the
system.

• max. 50% antifreeze and 50% demine­ ralized water due to increased viscosity,
providing frost protection to –30°C [-22 °].

Filtration

2 | © Danfoss | DCS (im) | 2019.10

The water supply must be ltered through a
10 µm abs., β

-value > 5000 lter.

10

For further lter details, please contact the
Danfoss Sales Organization.

AI319740679646en-000801| 521B0605 |

Data Sheet | Directional Control Valve VDH 30EC 4/3

Technical data and
Code numbers

Valve body

VDH 30EC - NC
Stainless steel, AISI 304

VDH 30EC - NC
Stainless steel, AISI 316

VDH 30 EC 2xNC + 2x NO
Stainless steel, AISI 3040

Code number 180L0046 180L0047 180L0050

Function symbol

Max. pressure port P, A and B

Return pressure, port T (T ≤ A, B pressure

1)

1)

140 barg [2030 psig]

140 barg [2030 psig]

Min. inlet pressure 5 barg [72.5 psig]

Max. ow 30 l/min [8 gpm]

Min. ow 1 l/min [0.2 gpm]

Pressure loss See curve page 4

Leakage, port P → A, B, T 0 ml/min [ 0 gpm]

Leakage, port A, B → T 0 ml/min [ 0 gpm]

Leakage, port A, B → P (inlet pressure port P = 0 barg) max. 5 ml/min [ max. 0.0013 gpm]

Leakage, port A, B → P
(inlet pressure port P = pressure port A,B)

Opening time when changing direction

Closing time when changing direction

2)

2)

0 ml/min [0 gpm]

110 ms

130 ms

Weight 3.8 kg [ 8 lbs]

The valves are supplied with screw and O-rings,
but without coils.

Coils type BE / Without LED / incl. Terminal box

Description Code no. Voltage Power

Coil 240V-60Hz-IP67 018F7926 240V 60Hz 15W

Voltage

tolerance

T max

Ambient

°C [°F]

Connection Enclosure

Weight
kg [lbs]

80 [176] Terminal box IP67 0.3 [0.7]

Coil 240V-50Hz-IP67 018F7924 240V 50Hz 11W 80 [176] Terminal box IP67 0.3 [0.7]

Coil 220-230V-50Hz-IP67 018F7921

Coil 220-230V-50-60Hz-IP67 018F7919

Coil 220V-60Hz-IP67 018F7925 220V 60Hz 13W 80 [176] Terminal box IP67 0.3 [0.7]

Coil 200V-50-60Hz-IP67 018F7929

Coil 110V-50-60Hz-IP67 018F7923

220-230 V

50 Hz

220-230 V

50-60Hz

200V

50/60Hz

110V 50-

60Hz

12W 80 [176] Terminal box IP67 0.3 (0.7)

17W
14W

50 [122] Terminal box IP67 0.3 [0.7]

± 10-15%

10W 80 [176] Terminal box IP67 0.3 [0.7]

15W
13W

50 [122] Terminal box IP67 0.3 [0.7]

Coil 24V-60Hz-IP67 018F7922 24V 60Hz 14W 80 [176] Terminal box IP67 0.3 [0.7]
Coil 24V-50Hz-IP67 018F7920 24V 50Hz 12W 80 [176] Terminal box IP67 0.3 [0.7]
Coil 42V-50Hz-IP67 018F7927 42V 50Hz 10W 80 [176] Terminal box IP67 0.3 [0.7]
Coil 24V-DC- IP67 018F7914 24V DC 16W ± 10% 50 [122] Terminal box IP67 0.3 [0.7]
Coil 12V-DC- IP67 018F7913 12V DC 15W ± 10% 50 [122] Terminal box IP67 0.3 [0.7]

© Danfoss | DCS (im) | 2019.10 AI319740679646en-000801| 521B0605| 3