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 flow.
	The valves are designed for tap water, i.e. without
	additives (EU-Directive 98/83/EC).
	1. Armature
	2. O-ring	6	7	1
	3. Orifice	5		8
	4. O-ring
				2
	5. O-ring
	6. Plug
	7. Spring			3
	8. Poppet
				4
	9. Orifice insert
	10. Screw
	11. O-ring

11

10

9

Function	The directional valves are pilot operated On/Off
	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.

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 offers many

different valve configurations to the end user.

Features	• Installable on all Cetop 3 blocks and inline		• The seat valve design ensures minimum
		blocks	leakage
	•	Corrosion resistant surfaces	• High degree of enclosure, IP67
	•	Easy-to-clean surfaces	• Many valve configurations available
Versions	The valve housing comes in standard version		The valve is available as a Normally Close
	in stainless steel AISI 304 (W. No. 1.4301) or		valve (NC) or in a combination of Normally
	ISI 316 (W. No. 1.4401)		Open (NO) and Normally Closed (NC
Temperature	Storage temperature:		Operation on water containing antifreeze:
	• -40°C to +70°C [ -40 to 158 °F] – provided
		that the valve is drained of fluid and stored	• Fluid temperature and ambient temperature:
		”plugged”	-30°C 1) to +50°C [-22 to 122 °F]
	Operation on (clean) water:
	• Fluid temperature and ambient temperature:
		+3°C to +50°C [37 to 122 °F]	1) please see paragraph on antifreeze protection
Antifreeze Protection	If a system requires antifreeze protection, Danfoss		Mixing ratio must be:
	recommends Dowcall N or Chillsafe mono propyl-		• min. 30% antifreeze and 70% demine-
	ene glycol from the Dow Chemical Company		ralized water providing frost protection to
	and Arco Chemical Company, respectively. Both		–13°C [9 °F] and preventing biofilm in the
	antifreezes are biologically degradable and must		system.
	be used together with demineralized water.		• max. 50% antifreeze and 50% demine-
			ralized water due to increased viscosity,
			providing frost protection to –30°C [-22 °].

Filtration	The water supply must be filtered through a
	10 µm abs., β10-value > 5000 filter.

For further filter details, please contact the Danfoss Sales Organization.

2 | © Danfoss | DCS (im) | 2019.10

AI319740679646en-000801| 521B0605 |

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

Technical data and

Code numbers

	Valve body	VDH 30EC - NC			VDH 30EC - NC			VDH 30 EC 2xNC + 2x NO
		Stainless steel, AISI 304			Stainless steel, AISI 316			Stainless steel, AISI 3040
	Code number	180L0046			180L0047			180L0050
	Function symbol

	Max. pressure port P, A and B 1)	140 barg [2030 psig]
	Return pressure, port T (T ≤ A, B pressure 1)	140 barg [2030 psig]
	Min. inlet pressure	5 barg [72.5 psig]
	Max. flow	30 l/min [8 gpm]
	Min. flow	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	0 ml/min [0 gpm]
	(inlet pressure port P = pressure port A,B)
	Opening time when changing direction 2)	110 ms
	Closing time when changing direction 2)	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	Voltage	T max			Weight
						Ambient	Connection	Enclosure
					tolerance				kg [lbs]
						°C [°F]
	Coil 240V-60Hz-IP67	018F7926	240V 60Hz	15W		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	220-230 V	12W		80 [176]	Terminal box	IP67	0.3 (0.7)
			50 Hz
	Coil 220-230V-50-60Hz-IP67	018F7919	220-230 V	17W		50 [122]	Terminal box	IP67	0.3 [0.7]
			50-60Hz	14W
	Coil 220V-60Hz-IP67	018F7925	220V 60Hz	13W	± 10-15%	80 [176]	Terminal box	IP67	0.3 [0.7]
	Coil 200V-50-60Hz-IP67	018F7929	200V	10W		80 [176]	Terminal box	IP67	0.3 [0.7]
			50/60Hz
	Coil 110V-50-60Hz-IP67	018F7923	110V 50-	15W		50 [122]	Terminal box	IP67	0.3 [0.7]
			60Hz	13W
	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