Danfoss EVR 2, EVR 3, EVR 6, EVRH 10, EVRH 15 Data sheet

Data sheet

Solenoid valve for R410A and R744

Types EVR 2 - EVR 6 and EVRH 10 - EVRH 40

EVRH high pressure range is a direct or servo operated solenoid valve specially designed to meet the requirements for high pressure refrigerants as R410A and R744. The EVRH valve can be used for liquid, suction and hot gas lines.

Features	yy Normally closed	yy MOPD up to 38 bar (550 psi) with 20 W coil
	yy Wide choice of coils for AC and DC voltage	yy Solder connection up to 1 5/8 in.
	yy Suitable for R410A and R744	yy Extended ends for soldering
	yy Designed for media temperatures up to 105 °C	yy It is not necessary to dismantle the valve
		during soldering.
	yy Design pressure 45.2 barg
Approvals	Low Voltage Directive (LVD) 2006/95/EC
	Versions with UL approval can be supplied
	on request

© Danfoss | DCS (rja) | 2016.11

DKRCC.PD.B00.B9.02 | 1

Data sheet | Solenoid valve for R410A and R744, Types EVR 2 - EVR6 and EVRH 10 - EVRH 40

Technical data	Temperature of medium				Refrigerant
	-40 – 105 °C for 10 or 12 W coil				R744, R22/R407C, R404A/R507, R410A,
	Max. 130 °C during defrost				R134a, R407A, R23.
	-40 – 80 °C for 20 W coil				For other refrigerants, please contact Danfoss.
					Note: EVR 2-3 and EVRH 25-40 are not suitable for R744
					applications with media temperatures constantly below 0 °C.
					For other media temperatures, please contact Danfoss.
		Opening differential pressure with standard coil ∆p [bar]							Max. working
	Type		Max. (MOPD) liquid 2)					Kv value 1)	pressure Ps
								[m3/h]
		Min.	10 W AC	12 W AC	20 W AC		20 W DC		[barg]
	EVR 2	0.0	25	25	38		18	0.16	45.2
	EVR 3	0.0	21	25	38		18	0.27	45.2
	EVR 6	0.05	21	25	38		18	0.8	45.2
	EVRH 10	0.05	21	25	38		18	1.9	45.2
	EVRH 15	0.05	21	25	38		18	2.6	45.2
	EVRH 20 (AC)	0.05	21	25	38		—	5.0	45.2
	EVRH 20 (DC)	0.05	—	—	—		16	5.0	45.2
	EVRH 25	0.2	21	25	40		18	10.0	45.2
	EVRH 32	0.2	21	25	40		18	16.0	45.2
	EVRH 40	0.2	21	25	40		18	25.0	45.2

1)The Kv value is the water flow in [m3/h] at a pressure drop across the valve of 1 bar ρ = 1000 kg/m3.

2)MOPD (Max. Opening Pressure Differential) for media in gas form is approx. 1 bar greater.

Ambient temperature and enclosure for coil:

see separate brochure “coils for solenoid valve”.

Ordering	Solenoid valve – Normally closed (NC) – Soldering ODF without manual stem – without coil
	Type		Coil type	Connection size	Connection size		Code no.
				[in.]	[mm]
			AC	1 4	—		032F1201
	EVR 2			/
			AC	—	6		032F1202
			AC / DC	1 4	—		032F1206
				/
			AC / DC	3 8	—		032F1204
	EVR 3			/
			AC / DC	—	6		032F1207
			AC / DC	—	10		032F1208
			AC / DC	1 2	—		032F1209
				/
			AC / DC	3 8	—		032F1212
	EVR 6			/
			AC / DC	—	10		032F1213
			AC / DC	—	12		032F1236
			AC / DC	1 2	—		032G1054
	EVRH 10			/
			AC / DC	—	12		032G1055
	EVRH 15		AC / DC	5/8	16		032G1056
	EVRH 20		AC	7/8	22		032G1057
	EVRH 20		DC	7/8	22		032G1058
	EVRH 25		AC / DC	1 8	—		032G1059
				1 /
	EVRH 32		AC / DC	—	35		032G1081
	EVRH 40	1)	AC / DC	1 /	—		032G1062
				5 8

1) With manual stem

© Danfoss | DCS (rja) | 2016.11

DKRCC.PD.B00.B9.02 | 2

Data sheet | Solenoid valve for R410A and R744, Types EVR 2 - EVR6 and EVRH 10 - EVRH 40

Capacity R410A

Capacities are based on:

Liquid temperature tl = 25 °C ahead of the valve Evaporating

temperature te = -10 °C Superheat 0 K

Liquid capacity Qc [kW]

Type		Liquid capacity Qc at pressure drop across valve ∆p [bar]
	0.1		0.2	0.3	0.4		0.5
R410A
EVR 2	2.58		3.64	4.46	5.15		5.76
EVR 3	4.35		6.15	7.53	8.69		9.72
EVR 6	12.88		18.21	22.30	25.76		28.80
EVRH 10	30.58		43.25	52.97	61.17		68.39
EVRH 15	41.85		59.19	72.49	83.70		93.58
EVRH 20	80.48		113.82	139.40	160.97		179.97
EVRH 25	160.97		227.64	278.81	321.94		359.94
EVRH 32	257.55		364.23	446.09	515.10		575.90
EVRH 40	402.42		569.11	697.02	804.85		899.85

Correction factors
When sizing valves, the plant capacity must									When the corrected capacity is known,
be multiplied by a correction factor									the selection can be made from the table.
depending on liquid temperature tl ahead
of the valve / evaporator.
Correction factors for liquid temperature tl
tf [°C]	-10		0	10		15		20	25	30	35	40	45		50
R410A	0.73		0.79	0.86		0.9		0.95	1	1.06	1.14	1.23	1.33		1.47

© Danfoss | DCS (rja) | 2016.11

DKRCC.PD.B00.B9.02 | 3

Data sheet | Solenoid valve for R410A and R744, Types EVR 2 - EVR6 and EVRH 10 - EVRH 40

Capacity R410A

(continued)

Capacities are based on liquid temperature tl = 25 °C ahead of evaporator.

The table values refer to the evaporator capacity and are given as a function of evaporating temperature te and pressure drop ∆p across the valve.

Capacities are based on dry, satuated vapour ahead

of the valve.

During operation with superheated vapour ahead of the valve, the capacities are reduced by 4% for each 10 K superheat.

Suction vapour capacity Qc

		Pressure	Suction vapour capacity Qc [kW] at evaporating temperature te [°C]
	Type	drop
		∆ [bar]	-40	-30	-20	-10	0	10
	R410A
		0.07	0.16	0.20	0.25	0.31	0.37	0.44
	EVR 2	0.15	0.23	0.29	0.36	0.45	0.54	0.64
		0.20	0.26	0.33	0.42	0.51	0.62	0.74
		0.07	0.27	0.34	0.42	0.52	0.63	0.75
	EVR 3	0.15	0.38	0.49	0.61	0.75	0.91	1.09
		0.20	0.43	0.56	0.70	0.87	1.05	1.25
		0.07	0.79	1.01	1.26	1.54	1.86	2.21
	EVR 6	0.15	1.13	1.45	1.82	2.24	2.70	3.22
		0.20	1.28	1.66	2.09	2.57	3.11	3.71
		0.07	1.88	2.40	2.99	3.66	4.41	5.25
	EVRH 10	0.15	2.68	3.45	4.32	5.31	6.42	7.65
		0.20	3.03	3.94	4.96	6.10	7.39	8.81
		0.07	2.57	3.28	4.09	5.01	6.03	7.18
	EVRH 15	0.15	3.66	4.72	5.92	7.27	8.78	10.47
		0.20	4.15	5.38	6.78	8.35	10.11	12.06
		0.07	4.95	6.31	7.87	9.63	11.60	13.80
	EVRH 20	0.15	7.04	9.07	11.38	13.98	16.89	20.13
		0.20	7.98	10.36	13.04	16.06	19.43	23.18
		0.07	9.90	12.63	15.74	19.26	23.21	27.61
	EVRH 25	0.15	14.08	18.15	22.76	27.96	33.78	40.25
		0.20	15.95	20.71	26.08	32.12	38.87	46.37
		0.07	15.85	20.20	25.18	30.81	37.13	44.17
	EVRH 32	0.15	22.53	29.04	36.42	44.74	54.05	64.41
		0.20	25.52	33.14	41.74	51.40	62.19	74.19
		0.07	24.76	31.56	39.34	48.14	58.01	69.02
	EVRH 40	0.15	35.20	45.37	56.90	69.90	84.45	100.64
		0.20	39.88	51.78	65.21	80.31	97.17	115.92

Correction factors
When sizing valves, the evaporator capacity								When the corrected capacity is known,
must be multiplied by a correction factor								the selection can be made from the table.
depending on liquid temperature tl ahead
of expansion valve.
Correction factors
tf [°C]	-10		0	10	15		20	25	30	35	40	45		50
R410A	0.76		0.80	0.89	0.92		0.96	1.0	1.05	1.11	1.18	1.26		1.37

© Danfoss | DCS (rja) | 2016.11

DKRCC.PD.B00.B9.02 | 4