Danfoss EVRP 10 Data sheet

Data Sheet

Solenoid valve Type EVRP 10

EVRP 10 is used as a capacity regulator to adapt compressor capacity to the actual evaporator load

Danfoss has developed a pulsating solenoid valve, EVRP 10, for use in applications where an extremely accurate regulation of media temperature is required.

Pulse solenoid valve EVRP 10 is used as a capacity regulator to adapt compressor capacity to the actual evaporator load.

EVRP 10 must be installed in a bypass between the high and low pressure sides of the refrigeration system.

It is specially designed for hot gas injection between evaporator and expansion valve.

AI226086443404en-000601

Customer designed

control unit

Features

Description

Refrigerants

R 134a, R 502

value

1.5 m

Min. opening

dierential pressure

0.05 bar

Max. opening

dierential pressure

21 bar

Max. working pressure, PB

42 bar

Media temperature

-60 – 120 °C

Mounting condition

Armature vertically upwards ±30°

Max. operating cycles

10 per minute

Life in no. of operating cycles

Min. 5 x 10

Feature

Description

Enclosure

IP00

Solenoid valve, Type EVRP 10

Functions

Figure 1: Functions for customer designed control unit

Applications

• Container refrigeration systems

• Ice cream production

• Air conditioning plant

• Wide range

Product specication

Technical data

Table 1: Separate valve body for EVRP 10

Table 2: Coils for EVRP 10

Hot gas replacement capacity

Capacities are given for 100% opening of EVRP and are composed of the EVRP hot gas capacity + the extra capacity yielded by the thermostatic expansion valve to maintain constant superheat across the evaporator.

Type

Evaporating

temperature te [°C]

Hot gas replacement capacity Q [kW]

Subcooling ∆t

sub

=4 K

Superheat = 0 K

Condensing temperature tc[°C]

2030405060

R134a

EVRP 10

12.2

16.5

20.3

24.5

28.7013.0

16.6

20.5

24.6

28.9

-10

13.1

16.7

20.6

24.9

29.2

-20

13.2

16.8

20.8

25.2

29.6

-30

13.4

17.0

21.1

25.5

30.2

R502

EVRP 10

16.1

21.4

25.0

28.6

31.8017.9

21.6

25.2

28.9

32.1

-10

18.1

21.7

25.5

29.2

32.6

-20

18.2

21.9

25.8

29.6

33.1

-30

18.4

22.2

26.2

30.1

33.7

Solenoid valve, Type EVRP 10

Table 3: Hot gas replacement capacity table

The evaporator load is given by the actual application and the limits set when sizing the system. The compressor capacity can be found from data supplied. The dierence between compressor capacity and evaporator output at any given time is the required hotgas replacement capacity.

Example:

The temperature of refrigerated items in an R134a container refrigeration system must be precisely 8 °C.

According to the specication, the compressor capacity at an evaporating temperature of 0 °C and a condensing temperature of 40 °C is 70 kW. The evaporator output needed to maintain the temperature of the items in the container at 8 °C is calculated as 58 kW.

To obtain balance in the refrigeration system, 70 – 58 = 12 kW must be applied to the low-pressure side via EVRP 10.

At an evaporating temperature of 0 °C and a condensing temperature of 40 °C, EVRP gives 20.5 kW at 100% opening (see capacity table above).

The 12 kW therefore corresponds to a degree of opening of EVRP 10 to: 12 × 100/20.5 = 59%

If changes occur in the ambient temperature of the required evaporator output, etc. the degree of opening of EVRP 10 is constantly changed via the control unit to maintain the temperature of refrigerated items within the range 8 °C ± 0.25 °C.

Dimensions in mm Weight: 0.35 kg

Dimensions in mm Weight: 0.56 kg

Danfoss

32F970.10

Type

Connection

Code no.

EVRP 10

⁄2

in. solder ODF

032F3298

Solenoid valve, Type EVRP 10

Dimensions and weight

Figure 2: Separate valve body for EVRP 10

Figure 3: Coils for EVRP 10

Ordering

Ordering for EVRP 10

Figure 4: Ordering separate valve body for EVRP 10

Table 4: Separate valve body for EVRP 10

Danfoss

18F9028.10

Type

Ambient [°C]

Supply voltage

[V]

Voltage varia‐

tion

Frequency [Hz]

Power con‐

sumption [W]

Screws

Colour

Code no.

BN024C

-40T80 24

±10%506.5

18/8 stainless

steel

Blue

018Z6826

±10%606

BN024D

-40T5024±10%DC14

Zn-chromated

Blue

018Z6964

Description

Code no.

Service / mounting kit

032F9570

Document name

Document type

Document topic

Approval authority

089.D.00188-17

UA Declaration

PED

LLC CDC EURO TYSK

033F1035.AJ

Manufacturers Declaration

PED

Danfoss

033F0230.00

Manufacturers Declaration

Danfoss

033F0687.AE

Manufacturers Declaration

RoHS

Danfoss

Solenoid valve, Type EVRP 10

Figure 5: Ordering coils for EVRP 10

Table 5: Coils for EVRP 10

Table 6: Accessories

Certicates, declarations and approvals

The list contains all certicates, declarations, and approvals for this product type. Individual code number may have some or all of these approvals, and certain local approvals may not appear on the list.

Some approvals may change over time. You can check the most current status at danfoss.com or contact your local Danfoss representative if you have any questions.

Table 7: Certicates, declarations and approvals

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Danfoss EVRP 10 Data sheet

Specifications and Main Features

Frequently Asked Questions

User Manual