components for co applications in industrial...

REFRIGERATION &AIR CONDITIONING DIVISION

Components for CO2 applicationsin Industrial Refrigeration

Application guide

MAKING MODERN LIVING POSSIBLE

Application guide Industrial Refrigeration Valves for CO2 Applications

Danfoss A/S (RA Marketing/MWA), 08 - 2007 RA0XA502 → DKRCI.PA.000.D1.02 / 520H0243 3

Contents Page

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

General information about CO2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Design pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Material compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Water in CO2 systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Safety valves in CO2 systems' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Capacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Danfoss sub-critical CO2 components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Coils for solenoid valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Pilot valve type CVP (XP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Hot-gas capacity for ICS with CVP (XP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Pressure transmitters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Liquid line filter driers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4 RA0XA502 → DKRCI.PA.000.D1.02 / 520H0243 Danfoss A/S (RA Marketing/MWA), 08 - 2007




Introduction The objective of this application guide is to provide an overview of which Danfoss Industrial Refrigeration products are suitable for use in CO2 applications.

Today, Danfoss is offering a broad programme of industrial products applicable for CO2, however this is dependent on demands regarding the design pressure. The table on page 8 lists the components which are suitable for CO2 applications together with the maximum working pressure limits.

General information about CO2

For further background information about CO2 as a refrigerant, please refer to the Danfoss article "CO2 Refrigerant for Industrial Refrigeration".

There are a number of important factors to be taken into consideration when determining the design pressure.

1. Pressure during operation: The pressure during operation is dependent on actual system design (single stage, cascade system or CO2- ”brine” system) and the load variation.

2. Pressure during “stand still”: The pressure during stand still can be very high and this has to be taken into consideration:

• Asmallseparaterefrigerationsystem can be used to keep the liquid temperature at a level, where the saturated pressure is lower than the design pressure

• Designingthesystemwithanexpansion vessel of a size that prevents the pressure from exceeding the design pressure.

• Designingtheplantsothatitcan withstand the saturated pressure at the design temperature (approx. 80 bar)

From Danfoss’ experience, it would appear that the most common solution for industrial refrigeration applications is to use a small separate refrigeration system to limit the temperature of the liquid CO2.

3. Pressure tolerances for safety valves (10 – 15 %) Safety valves require a certain pressure difference (difference between set pressure and reseating pressure) to ensure that the valve is closed properly. Normally the closing tolerance is 10% of the set pressure. Additionally, it is good practice to add 3-5% to the closing tolerance, to take care of any pressure variations / peaks.

Design pressure Note: In the “IoR - Code of Practice” issued by the Institute of Refrigeration in London, the above mentioned tolerance is stated to be 20%

4. Temperature / pressure requrements for defrosting Depending on the actual design, different ways of defrosting can be applied (natural, water, electrical or CO2 hot gas defrosting). The CO2 hot gas defrosting is the most efficient, especially at low temperatures, but it also has the highest pressure demand. With a design pressure of PS=50-52 bar, it is possible to reach a defrosting temperature of approx. 9-10°C. The saturated pressure at 9°C is 43.9 bar g. By adding 10% for the safety valves and approx. 5% for pressure peaks, the requirement is for pressure PS ~ 50-52 bar g.

There is not one common method to perform defrosting. All methods, as described above, are used, depending on the system, but also on the availability of suitable compressors and other components.



Material compatibility The tests have shown that CO2 is different, and modifications have to be made on some products. The large amount of CO2, which can dissolve in polymers, has to be taken into consideration. Some commonly used polymers are not compatable with CO2, and others require different fixing methods e.g. sealing materials.

When the pressure is close to the critical pressure and the temperature is high, the impact on polymers is much more extreme. However, those conditions are not important for industrial refrigeration as pressure and temperatures are lower for these systems.

CO2 is compatible with almost all common metallic materials, unlike NH3. There are no restrictions from a compatibility point of view, when using copper or brass.

The compatibility of CO2 and polymers is much more complex. As CO2 is a very inert and stable substance, the chemical reaction with polymers is not critical. The main concern with CO2 is the physiochemical effects, such as permeation, swelling and the generation of cavities and internal fractures. These effects are connected with the solubility and diffusivity of CO2 in the actual material.

Danfoss has carried out a number of tests to ensure that components released for use with CO2 can withstand the impact of CO2 in all aspects.



In NH3 systems it is well known that there are problems as a result of reaction with oil, oxygen, water and solid contaminations, but these are all handled today by frequent oil changes and use of air purgers. Compared to NH3 CO2 is less sensitive, but if water is present, problems may occur.

How can water penetrate into a CO2 system?

• ThepressureofCO2 systems is always above the atmospheric pressure, therefore there are not the same risks as in e.g. NH3 systems, of air/water penetration into a leaking CO2 system. However, pemeation of water into the system is still possible.

• WhenchargingCO2, there are different grades of CO2, some of which allow relatively high amounts of water.

• CO2 is a safe refrigerant, and therefore there is a risk, that it is handled without following the normal refrigeration safety requirements. If a system is opened up, air can penetrate into it, and the moisture can condense inside the tubes. If the system is not evacuated properly, some water may well be retained.

• Bycharginglubricant(oil)tothecompressor.

• Incompletewaterremovalduringinstallation/ commissioning

Water in CO2 systems

Fig. 1: Water solubility

Fig. 1 shows the maximum (water) moisture content that can be dissolved in the liquid and gas phases of CO2.

0

200

400

600

800

1000

1200

-60 -40 -20 0 20 40 60

Temperature

Weig

ht

*10-6

of

wate

r / w

eig

ht

of

refr

igera

nt

[pp

m]

Liquid CO2

Vapour CO2

[oC]

[oF]-40 32 104-76 -4 68 140

Water solubility in liquid / vapour CO2

From the reports, it seems that incomplete water removal, due to insufficient vacuum procedure, is one of the main reasons for water contamination in CO2 systems. Vacuum procedures sufficient for ammonia systems are not sufficient for CO2 systems.

The acceptable amount of water in CO2 systems is much lower than in systems with other common refrigerants. If the water content exceeds the dew-point, and the temperature is below 0°C, the water will freeze, creating a risk of problems with equipment in the system e.g. blocking control valves.

The water can very easily be removed bymounting a drier in the system.

Driers in CO2 are very efficient, and are normallymounted in the liquid line to avoid anyunnecessary pressure drops being created.



Fig. 2: Water solubility

Water in CO2 systems(cont.)

Fig. 3: SGN moisture indication for CO2

In fig. 2, the maximum water content, which can be dissolved in the CO2 gas phase, is compared with other commonly used refrigerants. The maximum water content for CO2 is much lower

than for the other refrigerants. If the maximum concentration is exceeded, this will appear as free water or as ice in the refrigeration system.

An indication of water content can be obtained by using a Danfoss SGN sight glass.- A “dry” system is shown with a green indicator- A “wet” system is shown with a yellow indicator

Water/moisture content values for these conditions are shown in fig. 3

0

10

20

30

40

50

60

70

80

90

100

–40

–40

–20

–4

0

32

CO2 + H2O

CO2 +

ICE

CO2 +

Water

vapour phase

Temperature

20 °C

68 ºF

Water solubility in vapour CO2

We

igh

t *1

0-6

of

wa

ter

/ w

eig

ht

of

refr

i ge

ran

t [p

pm

]

0

500

1000

1500

2000

-60 -40 -20 0 20 40 60

R717

CO2

R134a

-40 32 104-76 -4 68 140

Water solubility in vapour phase

[°C]

[°F]

We

igh

t *

10

-6 o

f w

ate

r /

we

igh

t o

f

refr

ige

ran

t [p

pm

]

Temperature



Water in CO2 systems(cont.)

Fig. 4: CO2 systems with DCR filter drier and SGN indicator

Due to the thermodynamic properties of CO2, in particular the triple point, which is located at much higher pressure than for all other common refrigerants, the formation of solid CO2 can occur.

If a safety valve is mounted in a CO2 system at e.g. 52 bar, the pressure in the downstream (outlet) line from the safety valve will pass the triple point at 5.2 bar.Below the triple point, CO2 will change from a mixture of liquid and vapour into a mixture of solid and vapour. The formation of solid CO2 in the downstream line can, in the worst case, block this line.

Safety valves in CO2 systems

The most effective solution to this problem is to mount the safety valve without an outlet line, thus blowing directly into the atmosphere.

The phase change of the CO2 does not take place directly in the valve, but just after the valve, and in this case in the atmosphere.

If safety valves or any other safety devices, have to be mounted in liquid lines, they must never blow to the atmosphere or any other places where the backpressure is below 5.2 bar.If the back-pressure is below the triple point (5.2 bar) a very high fraction of the CO2 will be solid.

Fig. 5: Flow in downstream lines from safety valves

Capacity CO2 capacity calculations for Danfoss Industrial Refrigeration components can be undertaken using the DIRcalc selection software.

Principle diagram: CO2-NH3 cascade system

CO2

Evaporator

Liquid

CO2 reciever

CO2

CompressorDry suction

CO2 - NH3

heat exchanger

Filter drier

Moisture indicator

Filter driers installed in:

• bypass lines or

•main liquid line

Liquid

Filter drier

Moisture indicator

50% solid CO2 at

the triple point

Liquid

20 bar [290 psi]

–78.4°C [–109.1°F]

–56.6°C [–69.9°F]

–5.2 bar-a [75.1 psi-a]

+31°C [87.9°F]

Vapour50 bar [725 psi]

Vapour35 bar [507 psi]

0% solid CO2 at the triple point

3% solid CO2 at the triple point

1450 100

145 10

14.5 1

psi barPressure

Enthalpy (J)



Danfoss sub-critical CO2

componentsToday, Danfoss is offering a broad programme of industrial components applicable for CO2.

The majority of components listed below have been evaluated and upgraded, and are therefore applicable for CO2 within the pressure and temperature range stated in the technical documentation. In particular the pressure is the limiting factor for this group of components.

Special components for “high” pressure CO2 applications have been developed. The most

common types of valves are listed on the following pages.

Please note the high pressure specials are generally available to order only and extended delivery times should be considered.

Pressure Equipment Directive (PED)The Industrial Refrigeration valves are approved in accordance with the European standards specified in the Pressure Equipment Directive and are CE marked.

20 290

30 435

40 580

50 725

60 870

–30

–22

–20

–4

–10

14

0

32

10

50

20 °C

68 °F

Design temperature

52 bar

754 psi

25 bar

363 psi

”Saturated”

pressure”p”(bara / psia)

”p” + 10%(barg / psig)

Design pressure”p” + 15%

(barg / psig)

Design pressure / temperature for CO2

bar psi

De

sig

n p

res

su

re

40 bar

580 psi

The product can be used in standard version. All products are CE approved

# Code numbers for these products are available in this application guide.

The product must be manufactured in a special version (higher test pressure, marking and documentation). All products are CE approved

Danfoss Sub Critical CO2 - componentsIndustrial Refrigeration products

DN PS 40bar

[580 psi]

PS 52 bar

[754 psi] Main Valves, Solenoid Valves ICS 1 ICS 3 all 20-65Motor Valves ICM all 20-65Multifunction valve ICF all 20-40Pilots for ICS Valves CVP (XP)

EVM #Stop Valves - SVA ST,HS SVA all 10-65 #

SVA all 80-200 50 bar #Regulating Valves - REG REG all 15 - 65 #Stop Check Valves SCA SCA all 15-65 #

SCA all 80-125 50 bar #Filters FIA FIA all 15-65 #

FIA all 80-200 50 bar #Check Valves CHV all 15- 40 #

CHV all 80-125 50 bar #Solenoid Valves EVRS all 10-25 #

EVRA all 10-40Electrically operated expansion valve AKVA all 10-40

Safety Valves and Change Over Valves SFV - DSV SFA 15 - DSV 1, 2 20-32POV 40, 50, 80 40-80

Filter drier DCRH High pressure version 46 bar #Liquid level transmitter AKS 41 - -Gas detectors GD

Industrial Refrigeration products



Danfoss sub-critical CO2

components(Continued)

The product can be used in standard version. All products are CE approved

Commercial Refrigeration products

Danfoss Sub Critical CO2 - componentsCommercial Refrigeration products

PS 35 bar

[508 psi]

PS 42bar

[609 psi]

PS 46 bar

[667 psi]

Solenoid Valves EVR 2, EVR 3

EVRH 6 - EVRH 15

Thermostatic expansion valves TU 34 bar

Shutoff Valves (Ball Valves) GBC 45 bar

Check Valves NRV

NRVH

Electrically operated expansion valve AKV 10 - AKV 15 (type A, B, C)

Filter drier DCRH

DCR

DML

Moisture indicator SGN

Pressure controls KP6

Pressure transmitters AKS 3000

Controllers for CO2-applications:

Case controllers AKC 114A, AKC 115A, AKC 116A

EKC 414A, EKC 414A1, AK-CC 550

AK-CC 750

Evaporator controllers EKC 315A, EKC 316, EKD 316, EKC 312

Pack controllers EKC 331T, AK-PC 530, AK-PC 420, AK-PC 730, AK-PC 840, AK-CH 650



Due to the high pressure difference between the condenser and evaporator, the Maximum Opening Pressure Differential (MOPD) demand for the solenoid valve in some applications may exceed the standard coil capabilities.

Typical applications could be:

Liquid injection for cooling the compressor

Hot gas defrost

Shut off valve before expansion valve

Therefore Danfoss offers a 20 W coil, that covers a MOPD range up to 40 bar. The 20 W coil program includes 24, 110 and 230 V a.c. 50 Hz power supplies.

Coils for solenoid valves

Max working pressure: 52 bar g (754 psig)

Kv /Cv value: 0.45 m3/h (0.52 USgal/min)

Temperature range: –50 Ý 120°C (–58 Ý 248°F)

Pressure range: 25 Ý 52 bar g (363 Ý 754 psig)

Technical data

The figure shows the evaporator in a CO2 refrigeration plant with flooded evaporation and with pump circulation. In this application the

Hot-gas capacity for ICS with CVP (XP)

Valve type Defrosting temperature [°C] +10

[bar] 45.0

Evaporating temperature [°C] 0 -10 -20 -30 -40

[bar] 34.9 26.5 19.7 14.3 10.1

CVP (XP) + CVH

Defrosting capacity [kW] 1004 1353 1580 1687 1854

Defrosting mass flow [kg/h] 57 79 93 102 108

ICS 25-5 Defrosting capacity [kW] 3792 5110 5969 6573 7004






Suction line

Liquid line

Hot gas line

constant defrost pressure regulation is made by means of an ICS mounted with a high-pressure pilot valve type CVP(XP).

Pilot valve type CVP (XP)



Pressure transmitters AKS 3000 is a series of absolute transmitterswith high-level signal conditioned current output, developed to meet demands in A/C and refrigeration.

AKS 3000 utilises the proved piezoresistive measuring principle, which has been used for decades in Danfoss pressure transmitters.

The pressure reference is a sealed gauge. This means that atmospheric pressure variations have no influence on regulating accuracy. A must in accurate low pressure regulation.

Features Designed to meet A/C and refrigeration demands without compromising control accuracy concerning

Tough environment• Vibration• Shock during operation and transport• Humidity and ice formation• Temperature variations• Corrosive media like ammonia gases and salt mist

Convenient performance• 4 to 20 mA signal• 1% typical accuracy• 0.5% typical linearity• Prepared for high pressure refrigerants• Bar code for tracing of calibration data

Perfect system integrity• Compact design• Max. working pressure ≤ 100 bar• Temperature compensation for suction line• 1/4 -18 NPT or G ½” EN 387 pressure connection• All laser welded AISI 316L stainless steel enclosure • No soft seals• Enclosure: IP 65 with plug

All materials in contact with the refrigerant and materials for the housing are AISI 316L stainless steel. No soft gaskets, all environmental sealings are made through laser weldings only.

AKS 3000 has a 4 to 20 mA output, and is available with DIN 43650-A plug RG9.

Application• High pressure control• Compressor capacity control• Evaporator pressure detection• Oil pressure control

Approvals• UL• CE marked acc. to the EMC directive



Eliminator ® liquid line filter driers protect refrigeration and air-conditioning systems from moisture, acids, and solid particles. With these contaminants eliminated, systems are safer from harmful chemical reactions and from abrasive impurities.

For further information regarding DCR filter driers please contact your local Danfoss sales company.

Eliminator ® liquid line filter driers

Capacity Please see the technical leaflet PD.EJ0.A

Benefits, features and facts Excellent moisture and acid adsorption protects your refrigeration system

Highly efficient dirt retaining capabilities on both the suction and the liquid line

Corrosion-resistant powder-painted finish including zinc phosphate pre-treatment of the DCR shells

DM solid core - 100% molecular sieve

Max. working pressure High pressure version: 46 bar (667 psi)

For industrial refrigeration available in connections: Butt weld DN20-50 (3/4 -2 in.)



Ordering The following list details the most commonly used Danfoss refrigeration components for CO2 applications. Components with alternative types of connections and dimensions can be supplied on request.

The Code Numbers specified include a mix of special high pressure and standard products. In both cases the Maximum Working Pressures should be adhered to.

The list also includes components which are not suitable for use with NH3, but are suitable for use for CO2 systems (moisture indicators and filter driers).

Stop valveSize Type Max.

WorkingPressureConnection Code Number

mm in.

10 3/8 SVA-ST 10 D ANG STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B3829

10 3/8 SVA-ST 10 D ANG STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B3830

10 3/8 SVA-ST 10 D STR STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B3859







25 1 SVA-ST 25 D ANG STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B3834

25 1 SVA-ST 25 D ANG STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B3835

25 1 SVA-ST 25 D STR STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B3898








50 2 SVA-ST 50 D ANG STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B3841







100 4 SVA-ST100 D ANG STOP VALVE CAP 50BAR 50 bar (725 psi) DIN 148B3779

100 4 SVA-ST100 D STR STOP VALVE CAP 50BAR 50 bar (725 psi) DIN 148B3994







D = Butt weld DIN connectionANSI = Butt weld ANSI connection

STR = StraightwayANG = Angleway

CAP = CapH-WHEEL = Hand wheel



Stop check valveSize Type Max. Working

PressureConnection Code Number

mm in.

15 1/2 SCA 15 D ANG STOP/CHECK VALVE 52BAR 52 bar (754 psi) DIN 148G3522

25 1 SCA 25 D ANG STOP/CHECK VALVE 52BAR 52 bar (754 psi) DIN 148G3523







100 4 SCA100 D ANG STOP/CHECK VALVE 50BAR 50 bar (725 psi) DIN 148G3697

125 5 SCA125 D ANG STOP/CHECK VALVE 50BAR 50 bar (725 psi) DIN 148G3698

Regulating valveSize Type Max. Working


mm in.

15 1/2 REG 15 D ANG CONE#4 REG VALVE 52BAR 52 bar (754 psi) DIN 148G3172




15 1/2 REG 15 D STR CONE#4 REG VALVE 52BAR 52 bar (754 psi) DIN 148G3675










25 1 REG 25 D ANG CONE#4 REG VALVE 52BAR 52 bar (754 psi) DIN 148G3180




25 1 REG 25 D STR CONE#5 REG VALVE 52BAR 52 bar (754 psi) DIN 148G3678















Ordering (cont.)





Check valveSize Type Max. Working


mm in.

15 1/2 CHV 15 D ANG CHECK VALVE 52BAR 52 bar (754 psi) DIN 148G3526


25 1 CHV 25 D ANG CHECK VALVE 52BAR 52 bar (754 psi) DIN 148G3528


40 11/2 CHV 40 A ANG CHECK VALVE 52BAR 52 bar (754 psi) ANSI 148G3673





100 4 CHV100 D ANG CHECK VALVE 50BAR 50 bar (725 psi) DIN 148G3699

125 5 CHV125 D ANG CHECK VALVE 50BAR 50 bar (725 psi) DIN 148G3700

FilterSize Type Max. Working


mm in.

15 1/2 FIA 15 D ANG FILTER HOUSING 52BAR 52 bar (754 psi) DIN 148H3215

15 1/2 FIA 15 D STR FILTER HOUSING 52BAR 52 bar (754 psi) DIN 148H3313



25 1 FIA 25 D ANG FILTER HOUSING 52BAR 52 bar (754 psi) DIN 148H3216

25 1 FIA 25 D STR FILTER HOUSING 52BAR 52 bar (754 psi) DIN 148H3315

32 11/4 FIA 32 A STR FILTER HOUSING 52BAR 52 bar (754 psi) ANSI 148H3300











100 4 FIA100 D ANG FILTER HOUSING 50BAR 50 bar (725 psi) DIN 148H3375

100 4 FIA100 D STR FILTER HOUSING 50BAR 50 bar (725 psi) DIN 148H3376







Code numbers include bodies only - filter inserts to be ordered separately

Ordering (cont.)

Overflow valveSize Type Max. Working


mm in.

20 3/4 OFV D ANG OVERFLOW VALVE 52 bar (754 psi) DIN 148G3192

25 1 OFV D ANG OVERFLOW VALVE 52 bar (754 psi) DIN 148G3193

The differential pressure can be adjusted 2-8 bar





Stop valve (stainless steel)Size Type Max. Working


mm in.

15 1/2 SVA-SS 15 D ANG STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B384315 1/2 SVA-SS 15 D ANG STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B384465 21/2 SVA-SS 15 D STR STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B424965 21/2 SVA-SS 15 D STR STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B425020 3/4 SVA-SS 20 D ANG STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B384520 3/4 SVA-SS 20 D ANG STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B384620 3/4 SVA-SS 20 D STR STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B425120 3/4 SVA-SS 20 D STR STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B425225 1 SVA-SS 25 D ANG STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B384725 1 SVA-SS 25 D ANG STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B384825 1 SVA-SS 25 D STR STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B384725 1 SVA-SS 25 D STR STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B384832 11/4 SVA-SS 32 D ANG STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B384932 11/4 SVA-SS 32 D ANG STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B385032 11/4 SVA-SS 32 D STR STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B425532 11/4 SVA-SS 32 D STR STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B425640 11/2 SVA-SS 40 D ANG STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B385140 11/2 SVA-SS 40 D ANG STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B385240 11/2 SVA-SS 40 D STR STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B425740 11/2 SVA-SS 40 D STR STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B425850 2 SVA-SS 50 D ANG STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B385350 2 SVA-SS 50 D ANG STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B385450 2 SVA-SS 50 D STR STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B425950 2 SVA-SS 50 D STR STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B426065 21/2 SVA-SS 65 D ANG STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B385565 21/2 SVA-SS 65 D ANG STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B385665 21/2 SVA-SS 65 D STR STOP VALVE CAP 52BAR 52 bar (754 psi) DIN 148B426165 21/2 SVA-SS 65 D STR STOP VALVE H-WHEEL 52BAR 52 bar (754 psi) DIN 148B4262

Ordering (cont.)

Regulating valve (stainless steel)Size Type Max. Working


mm in.

15 1/2 REG-SS 15 D ANG CONG#4 REG VALVE 52BAR 52 bar (754 psi) DIN 148G354215 1/2 REG-SS 15 D ANG CONG#5 REG VALVE 52BAR 52 bar (754 psi) DIN 148G354315 1/2 REG-SS 15 D ANG CONG#6 REG VALVE 52BAR 52 bar (754 psi) DIN 148G354415 1/2 REG-SS 15 D ANG CONG#7 REG VALVE 52BAR 52 bar (754 psi) DIN 148G354515 1/2 REG-SS 15 D STR CONG#4 REG VALVE 52BAR 52 bar (754 psi) DIN 148G364015 1/2 REG-SS 15 D STR CONG#5 REG VALVE 52BAR 52 bar (754 psi) DIN 148G364115 1/2 REG-SS 15 D STR CONG#6 REG VALVE 52BAR 52 bar (754 psi) DIN 148G364215 1/2 REG-SS 15 D STR CONG#7 REG VALVE 52BAR 52 bar (754 psi) DIN 148G364320 3/4 REG-SS 20 D ANG CONG#4 REG VALVE 52BAR 52 bar (754 psi) DIN 148G354620 3/4 REG-SS 20 D ANG CONG#5 REG VALVE 52BAR 52 bar (754 psi) DIN 148G354720 3/4 REG-SS 20 D ANG CONG#6 REG VALVE 52BAR 52 bar (754 psi) DIN 148G354820 3/4 REG-SS 20 D ANG CONG#7 REG VALVE 52BAR 52 bar (754 psi) DIN 148G354920 3/4 REG-SS 20 D STR CONG#4 REG VALVE 52BAR 52 bar (754 psi) DIN 148G364420 3/4 REG-SS 20 D STR CONG#5 REG VALVE 52BAR 52 bar (754 psi) DIN 148G364520 3/4 REG-SS 20 D STR CONG#6 REG VALVE 52BAR 52 bar (754 psi) DIN 148G364620 3/4 REG-SS 20 D STR CONG#7 REG VALVE 52BAR 52 bar (754 psi) DIN 148G364725 1 REG-SS 25 D ANG CONG#4 REG VALVE 52BAR 52 bar (754 psi) DIN 148G355025 1 REG-SS 25 D ANG CONG#5 REG VALVE 52BAR 52 bar (754 psi) DIN 148G355125 1 REG-SS 25 D ANG CONG#6 REG VALVE 52BAR 52 bar (754 psi) DIN 148G355225 1 REG-SS 25 D ANG CONG#7 REG VALVE 52BAR 52 bar (754 psi) DIN 148G355325 1 REG-SS 25 D STR CONG#4 REG VALVE 52BAR 52 bar (754 psi) DIN 148G364825 1 REG-SS 25 D STR CONG#5 REG VALVE 52BAR 52 bar (754 psi) DIN 148G364925 1 REG-SS 25 D STR CONG#6 REG VALVE 52BAR 52 bar (754 psi) DIN 148G365025 1 REG-SS 25 D STR CONG#7 REG VALVE 52BAR 52 bar (754 psi) DIN 148G365132 11/4 REG-SS 32 D ANG CONG#10 REG VALVE 52BAR 52 bar (754 psi) DIN 148G355432 11/4 REG-SS 32 D ANG CONG#8 REG VALVE 52BAR 52 bar (754 psi) DIN 148G355532 11/4 REG-SS 32 D ANG CONG#9 REG VALVE 52BAR 52 bar (754 psi) DIN 148G355632 11/4 REG-SS 32 D STR CONG#10 REG VALVE 52BAR 52 bar (754 psi) DIN 148G365232 11/4 REG-SS 32 D STR CONG#8 REG VALVE 52BAR 52 bar (754 psi) DIN 148G365332 11/4 REG-SS 32 D STR CONG#9 REG VALVE 52BAR 52 bar (754 psi) DIN 148G365440 11/2 REG-SS 40 D ANG CONG#10 REG VALVE 52BAR 52 bar (754 psi) DIN 148G355740 11/2 REG-SS 40 D ANG CONG#8 REG VALVE 52BAR 52 bar (754 psi) DIN 148G355840 11/2 REG-SS 40 D ANG CONG#9 REG VALVE 52BAR 52 bar (754 psi) DIN 148G355940 11/2 REG-SS 40 D STR CONG#10 REG VALVE 52BAR 52 bar (754 psi) DIN 148G365540 11/2 REG-SS 40 D STR CONG#8 REG VALVE 52BAR 52 bar (754 psi) DIN 148G365640 11/2 REG-SS 40 D STR CONG#9 REG VALVE 52BAR 52 bar (754 psi) DIN 148G3657



CAP = CapH-WHEEL = Hand wheel



Ordering (cont.)

Overflow valve (stainless steel)Size Type Max. Working


mm in.

20 3/4 OFV-SS 20 D ANG OVER FLOW VALVE 52BAR 52 bar (754 psi) DIN 148G3194

25 1 OFV-SS 25 D ANG OVER FLOW VALVE 52BAR 52 bar (754 psi) DIN 148G3195

Differential pressure can be adjusted 2-8 bar

Check valve (stainless steel)Size Type Max. Working


mm in.

15 1/2 CHV-SS 15 D ANG CHECK VALVE 52BAR 52 bar (754 psi) DIN 148G3537


25 1 CHV-SS 25 D ANG CHECK VALVE 52BAR 52 bar (754 psi) DIN 148G3539



Filter (stainless steel)Size Type Max. Working


mm in.

15 1/2 FIA-SS 15 D ANG FILTER HOUSING 52BAR 52 bar (754 psi) DIN 148H3221

15 1/2 FIA-SS 15 D STR FILTER HOUSING 52BAR 52 bar (754 psi) DIN 148H3285



25 1 FIA-SS 25 D ANG FILTER HOUSING 52BAR 52 bar (754 psi) DIN 148H3223

25 1 FIA-SS 25 D STR FILTER HOUSING 52BAR 52 bar (754 psi) DIN 148H3287





50 2 FIA-SS 50 D ANG FILTER HOUSING 52BAR 52 bar (754 psi) DIN 148H3283

50 2 FIA-SS 50 D STR FILTER HOUSING 52BAR 52 bar (754 psi) DIN 148H3290



Stop check valve (stainless steel)Size Type Max. Working


mm in.

15 1/2 SCA-SS 15 D ANG STOP/CHECK VALVE 52BAR 52 bar (754 psi) DIN 148G3532


25 1 SCA-SS 25 D ANG STOP/CHECK VALVE 52BAR 52 bar (754 psi) DIN 148G3534



D = Butt weld DIN connection




Ordering (cont.)

Available connections

20 D (3/4 in.) 25 D (1 in.) 32 D (11/4 in.) 40 D (11/2 in.) 13/8in. SA (35) 11/8 in. SA 7/8 in. SA 28 SD

ICS 25-51 Pilot 027H2028 027H2020 027H2026 027H2025 027H20243 Pilots 027H2078 027H2070 027H2076 027H2075 027H2074



ICS 25 - Ordering complete factory assembled valve (body, function module and top cover)

22 SD 3/4 in. A (20) 1 in. A (25) 11/4 in. A (32) 3/4 in.SOC (20) 1 in. SOC (25) 3/4 in. FPT 1 in. FPT

ICS 25-51 Pilot 027H2023 027H2029 027H2021 027H21403 Pilots 027H2073 027H2079 027H2071 027H2145



Select from parts programme (see the technical leaflet RD4YA)

1 pilot 3 pilots

Hot gas defrost using ICS with CVP (XP)

PilotType Max. Working

PressureCode Number

CVPP (HP) 40 bar (580 psi) 027B1268

CVP (XP) 52 bar (754 psi) 027B0080

CVC-HP (4-25 bar regulating range) 40 bar (580 psi) 027B0087

EVM (NC) 65 bar (942 psi) 032F8011CVPP (HP) CVP (XP)

Solenoid valve stainless steelSize Type Max. Working

PressureConnection Code number

mm in10 3/8 EVRS 3 52 bar (754 psi) DIN 032X308015 1/2 EVRST 10 with manual stem 52 bar (754 psi) DIN 032X308320 3/4 EVRST 15 with manual stem 52 bar (754 psi) DIN 032X308525 1 EVRST 20 with manual stem 52 bar (754 psi) DIN 032X2237

Coils: See “Coils for Solenoid valves”

ICM - special valves

Type Code Number

ICM 20-A CO2 Module 027H1183

ICM 20-B CO2 Module 027H1184

ICM 20-C CO2 Module 027H1185










ICM are used in many CO2 applications with a high pressure difference, therefore Danfoss now offers dedicated optimized ICM function modules for CO2 applications.

Please note:The ICM CO2 solution is only available as ICM function modules. ICV valve body and actuator type ICAD 600 / 900 must be ordered separately.

Coils

A.C. coils Code no.

110 V a.c. 20 W, 50 Hzwith terminal box

018Z6904

24 V a.c. 20 W, 50 Hzwith terminal box

018F6901

230 V a.c., 20W, 50 Hz 018F6905

EVM (NC)



Ordering (cont.)

Please note: The high pressure specials are generally available but extended delivery times should be considered.

Delivery

Pressure transmitterType Pressure range Electrical connection Pressure connection Code no.

AKS 3000 PE 0...60 BARDIN 43650-A,

PLUG PG91/4-18 NPT 060G1083

AKS 3000 PE 0...60 BARDIN 43650-A,

PLUG PG9G1/2 EN 837 060G3631

TypeNumber of cores

High-pressure steel connectorsCode no.

Max. working pressure

(PS/MWP)Solder Butt weld

ODF in. ODF mm in.

DCR 0487

1

7/8 22 3/4 023U7451

46 bar

DCR 0489 28 1 023U7452

DCR0489 1 1/8 1 023U7453

DCR 04811 1 3/8 35 1 1/4 023U7454

DCR 04813 1 5/8 1 1/2 023U7455

DCR 04817 2 1/8 54 2 023U7457

DCR 0967

2

7/8 22 3/4 023U7458

46 bar

DCR 0969 28 1 023U7459

DCR 09611 1 3/8 35 1 1/4 023U7461

DCR 09613 1 5/8 1 1/2 023U7462

DCR 09617 2 1/8 54 2 023U7464

DCR housings + top cover

DCR inserts

Core surfaceDM 048, DC 048 and DA 048 = 435 cm2

DM 096, DC 096 and DA 096 = 870 cm2

DM 144, DC 144 and DA 144 = 1305 cm2

DM 192, DC 192 and DA 192 = 1740 cm2

48-F = 405 cm2

Core volumeDM 048, DC 048 and DA 048 = 760 cm3

DM 096, DC 096 and DA 096 = 1520 cm3

DM 144, DC 144 and DA 144 = 2280 cm3

DM 192, DC 192 and DA 192 = 3040 cm3

Type Material

Code no.

8 pcs. 1 piecewith gasketwith gasket without gasket

48-DM solid core 100% molecular sieve 023U1392 023U1393 023U1391

48-DC solid core 80% molecular sieve & 20% Al3O2 023U4381 023U4382 023U4380

48-DA solid core 30% molecular sieve & 70% Al3O2 023U5381 023U5382 023U5380

48-F strainer 023U1921

RA0XA502 → DKRCI.PA.000.D1.02 / 520H0243 Produced by Danfoss RA Marketing, MWA. 06-2007

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