Danfoss - Refrigeration & Air-conditioning Controls

The range of pressure and temperature regulating valves have a lot of different functions in the commercial refrigeration and airconditioning plant. Capacity regulation, crankcase pressure regulation, receiver pressure regulation, evaporation pressure regulation and condensing pressure regulation.The regulators are delivered with flare or solder connection. Where neccesary the regulators are delivered with schrader valve.

KVP evaporator pressure regulator, suction line
KVP evaporator pressure regulators are mounted in the suction line of refrigeration and air conditioning systems. They are used to maintain a constant pressure corresponding to a constant temperature on the evaporator. They also protect against too low an evaporating pressure by throttling down when the pressure falls below the set value.

• Regulating range 0 - 5.5 bar,
• Factory setting 2 bar,
• Max. working pressure 18 bar.
• Access port: ¼ in.
• Schrader valve for pressure testing.
• Max. test pressure KVP 12 - 22 = 28 bar, KVP 28 - 35 = 25.6 bar

KVR condensing pressure regulator
KVR condensing pressure regulators can be mounted in either the gas or liquid side of the condenser in refrigeration and air conditioning systems. They are used to maintain a constant and sufficiently high condensing pressure with systems using air-cooled condensers. KVR condensing pressure regulators can also be used with differential pressure valves type NRD or receiver pressure regulators type KVD to assure that adequate pressure is maintained on the receiver.

• Regulating range 5 - 17.5 bar,
• Factory setting 10 bar, max.
• Working pressure 28 bar.
• Access port: ¼ in. Schrader valve for pressure testing.
• Max. test pressure 31 bar.

KVC hot gas bypass regulator
KVC hot gas bypass regulators are used to adapt compressor capacity to actual evaporator load by supplying a replacement capacity in the form of hot/cool gas. They are installed in a bypass line between the high and low-pressure sides of the refrigeration system and are designed for direct gas injection into the suction line.

• Regulating range 0.2 - 6.0 bar,
• Factory setting 2 bar,
• Max. working pressure 28 bar.
• Max. test pressure 31 bar.
• Maximum P band 2.0 bar.

CPCE hot gas bypass regulator (with LG)
CPCE hot gas bypass regulators are used to adapt compressor capacity to actual evaporator load. CPCE hot gas bypasses are installed in a bypass line between the high and low pressure sides of the refrigeration system and are designed for hot gas injection into the evaporator just after the expansion valve. Liquid-gas mixer LG can be used at the point of injection to assure a proper mixture.

• Refrigerants: HCFC and Non-flammable HFC refrigerants.
• Regulating range 0 - 6.0 bar (0 – 87 psig),
• Factory setting 0.4 bar (5.8 psig),
• Max. working pressure 28 bar (406 psig).
• Max. test pressure 31 bar (450 psig).
• Access port: ¼ in. Schrader valve for pressure testing.

KVL crankcase pressure regulator, suction line
KVL crankcase pressure regulators are installed in the suction line of refrigeration systems. They are used to protect the compressor motor against overload experienced during startup after long off periods or just after defrost periods.

• Regulating range 0.2 - 6.0 bar,
• Factory setting 2 bar,
• Max. working pressure 18 bar.
• Access port: ¼ in. Schrader valve for pressure testing.
• Max. test pressure KVL 12 -22 = 28 bar, KVL 28 - 35 = 25.6 bar
• Maximum P-bandKVL 12 - 22 = 2.0 barKVL 28 - 35 = 1.5 bar

• ERC / EKC Electronic Refrigeration Controls

ERC and EKC electronic controls are designed to manage energy consuming functions in commercial refrigerators. Depending on the type of controls, functions are also available for regulating defrosting and fan operation.
Models:

1. ERC 101
2. ERC 111
3. ERC 112
4. ERC 211
5. ERC 213
6. EKC 102

• EKC Water Chiller Controls for electronically operated valves

Water cooler controls, with superheat control, thermostat function, for control of AKV valves or step motor valves, and with optional use with air coolers, e.g. freezer stores.
 
Model:

1. EKC 312

EKC 312 is a controller for operation of evaporators in water chillers. The controller and valve can be used where there are requirements for accurate control of superheat and temperature in connection with refrigeration,

• Processing plants (water chillers).
• Cold stores (air coolers)
• AC Plants

EKC 312 controls the superheat in the evaporator by a pressure transmitter, Type AKS 33, and a temperature sensor (Pt 1000 ohm). The expansion valve is with step motor of the type ETS.

EKC Media temperature controls
Temperature regulation with evaporating pressure control. Used when there are stringent requirements to accurate temperature control.
Model :

1. EKC 361

The controller and valve can be used where there are stringent requirements to accurate temperature control in connection with refrigeration, e.g.:

• Cold room for fruits and food products.
• Refrigerating systems.
• Work premises in the food industry.
• Process cooling of liquids.

Temperature sensor = Type AKS (Pt 1000 ohm). 

• Liquid Level Controls

Controls for level regulation of refrigerant. 

Model: 

1. EKC 347

EKC 347 liquid level controller is used for regulation of the refrigerant level in:

• Pump reservoirs
• Separators
• Intermediate coolers
• Economisers
• Condensers
• Receivers
• Liquid level control
• Alarm if the set alarm limits are exceeded
• Relay outputs for upper and lower level limits and for alarm level
• Analog input signal which can displace the reference

Thermostatic expansion valves regulate the injection of refrigerant liquid into evaporators. Injection is controlled by the refrigerant superheat. The range of thermostatic expansion valves cover different valves designed for specific applications. The valves are delivered with connections in flare, solder copper or stainless steel / copper bi-metal connections.Temperature range from –60°C to 50°C.Rated capacity: 0.5 to 1890 kW (R 22).

Series:
T2 / TE2
T 2/TE 2 thermostatic expansion valves are used for liquid injection into evaporators on both refrigeration and air conditioning systems using fluorinated refrigerants. T 2/TE 2 is supplied with an interchangeable orifice assembly for easy stocking and service.

TE 5 - 55

TE 5 - 55 thermostatic expansion valves are used for liquid injection into evaporators on both refrigeration and air conditioning systems using fluorinated refrigerants. TE 5 - 55 is supplied as a part program with a wide range of valve bodies. The exchangeable power element is produced with the well known Danfoss laser welding technology for extended lifetime capability.

Large operating range: –60 °C to 10°C.
Interchangeable orifice assembly.
Stainless steel power element, capillary tube and bulb.
Wide capacity range.
Versions with MOP function is available.
Superior charge performance.
Patented bulb strap design.
MWP up to 28 bar.
Wide capacity range to minimize capacity gap and overlap.

TUA / TUAE
TUA/TUAE stainless steel thermostatic expansion valves are used for liquid injection into evaporators on both refrigeration and air conditioning systems using fluorinated refrigerants. TUA/TUAE valves are compact in design, light weight and have steel / copper bi-metal connections for fast soldering. TUA/TUAE have an interchangeable orifice and adjustable superheat.

Thermostatic expansion valves regulate the injection of refrigerant liquid into evaporators. Injection is controlled by the refrigerant superheat. The range of thermostatic expansion valves cover different valves designed for specific applications. The valves are delivered with connections in flare, solder copper or stainless steel / copper bi-metal connections.The valves are designed for OEM and are with fixed orifice.Rated capacities R22: 0.5 - 245 kW

TUB/ TUBE Series
TUB/TUBE stainless steel thermostatic expansion valves are used for liquid injection into evaporators on both refrigeration and air conditioning systems using fluorinated refrigerants. TUB/TUBE valves are compact in design, light weight and have steel / copper bi-metal connections for fast soldering. TUB/TUBE have a fixed orifice and adjustable superheat.

TGE Series

TGE is an innovatively designed series of thermostatic expansion valves for fluorinated refrigerants.
TGE has copper connections upgraded to high-pressure applications for hermetically tight soldering, and is available with a wide variety of connection types such as solder, flare, MIO, and ORFS, and a wide variety of connection sizes.
TGE is available in versions for R22, R134a, R404A, R507, R407C, R410A, R32 and R290.

• Hermetic Thermostatic expansion valve for R22, R134a, R404A, R507, R407C, R410A, R32 and R290.
• Head pressure independent.
• Version with MOP (Max. Operating Pressure).
• Rated capacity from 3.5 to 52 TR (12 to 182 kW) - R410A.
• Straightway flow.
• Bi-flow balanced port design for TGE 20/TGE 40, TGE 10 is balanced port design in normal flow direction.
• Low hysteresis/reduced friction.
• Opening superheat (OSH) max. 4°K
• Max. working pressure 46 bar/667 psi.
• Increased lifetime for heat pump application (also with R 410A ).
• New cylindrical bulb design made of stainless steel.
• Easy adjustment of static superheat setting (0K/ 0°F - 8K/14.4°F).
• Stainless steel capillary tube for superior strength and ductility.
• Laser welded stainless steel power element for unsurpassed joint strength and operational lifetime.
• Solder copper or flare connection (flare, MIO, ORFS) available.

• Capacity range 2 to 455TR R407C
• Wide range for all common refrigerants R410A, R407C, R404A, R134a and R22
• Stepper motor valves with hundreds to thousands of capacity steps for precise control
• Primary applications include commercial A/C (especially in variable speed application), transport refrigeration & food retail
• Energy saving design; Low power consumption
• ETS 50 to 400 are all designed with built-in sight glass with moisture indicator
• ETS 50 and 100 have bi-metal connections; no need to use wet cloth

FOB Price:1013855800

In the Danfoss range of pressure switches and thermostats you will find what you need for your refrigeration applications. 

The pressure switches and thermostats are designed to perform under the most difficult operating conditions, monitoring your processes with great accuracy and protecting your equipment. 

The Danfoss pressure switches and thermostats come in two primary categories, KP for normal applications and RT for heavy duty purposes. The controls can be provided for fluorinated refrigerants as well as for hydrocarbons. 

You can order the switches and thermostats with either fixed or adjustable differential settings. All controls and thermostats feature a high accuracy range setting to enable easy operation of your refrigeration system.

• Switches and thermostats for a wide range of applications
• Easy to fit with different purpose-specific enclosures and connections
• Approved for specific application types and a large number of markets
• Working ranges from -0.9 bar (-13 psi) up to 46.5 bar (675 psi)
• Long service life  

 

The range of filter driers cover both hermetic filter driers and filter driers with exchangeable core.The hermetic filter drier is delivered with various functions: standard filter drier, bi-flow filter drier, receiver filter drier and burn-out filter drier. For the filter drier with exchangeable core the program covers: standard core for CFC / HCFC, standard core for HFC, burn-out core and mechanical filter. The filter drier housing is available with 1 to 4 cores.

DCL hermetic filter drier, HCFC/CFC optimized
DCL hermetic filter driers are optimised for HFC and HCFC refrigerants and mineral or benzene oils. The hermetic filter driers are hermetic and approved for up to 46 bar, depending on type. The filter driers are delivered with flare or copper/copper plated steel connections.

DML hermetic filter drier, HFC optimized
DML hermetic filter driers are optimised for HFC refrigerants and mineral or benzene oils. The filter driers are hermetic and approved for 46 bar, depending on type. The filter driers are delivered with flare or copper/copper plated steel connections.

DCR filter drier, exchangeable core, housing and cores
DCR filter driers protect refrigeration, freezing and air conditioning systems from moisture, acids and solid particles. DCR filter driers are delivered with exchangeable cores for use in liquid and suction lines in refrigeration plants with fluorinated refrigerants. Core types: 48-DC for HCFC and CFC systems. 48-DM for HFC systems. 48 DA for acid adsorption after burnout. 48-F strainer for retaining dirt.

DCB hermetic bi-flow filter drier, HCFC/CFC optimized
Hermetic bi-flow filter driers, type DCB, are for use in liquid lines on heat pumps.The filter driers have built-in check valves which ensures that refrigerant liquid always flows through the filter drier from the outer side of the filter core towards the center. Thus all dirt particles are retained irrespective of flow direction.The DCB hermetic bi-flow filter driers ensure fast and effective adsorption of moisture as well as organic and inorganic acids.

DMB hermetic bi-flow filter drier, HFC optimized
Hermetic bi-flow filter driers, type DMB, are for use in liquid lines on heat pumps.The hermetic bi-flow filter driers have built-in check valves which ensure that refrigerant liquid always flows through the filter drier from the outer side of the filter core towards the center. Thus all dirt particles are retained irrespective of flow direction. DMB hermetic bi-flow filter driers ensure fast and effective adsorption of moisture as well as organic and inorganic acids.

DAS hermetic burn-out filter drier, HCFC/CFC optimized
Eliminator© hermetic burn-out filter driers type DAS are used in the suction line to clean up refrigeration and air conditioning systems with flourinated refrigerants after a compressor motor burn-out. The solid core, which is composed of 70% activated alumina and 30% Molecular Sieve, adsorbs harmful acids as well as moisture. By adsorbing these acids, the DAS hermetic burn-out filter drier protects the new compressor against failure.

Pressure operated water valves are used for regulating the flow of water in refrigeration plants with water-cooled condensers. The water regulating valves give modulating regulation of the condensing pressure and so maintain it constant during operation. When the refrigeration plant is stopped, the cooling water flow is shut off automatically.

• WVFX / WVTS / WVO pressure operated water valves

Pressure operated water valves are used for regulating the flow of water in refrigeration plants with water-cooled condensers. Type WVFX can be supplied in stainless steel housing which can be used in connection with sea water cooling of condensers and compressors. 

WVFX, pipe thread connections, manually adjustable

• Direct actuated valve.
• Refrigerants (condenser side): CFC, HCFC, HFC.
• Media (liquid side): fresh water, neutral brine.
• Media temperature range, WVFX 10-25: –25 - 130°C, WVFX 32-40:–25 - 90°C.
• Opening differential pressure: max. 10 bar.
• Max working pressure, condenser side, WVFX 10-25: 26.4 bar, WVFX 32-40: 24.1 bar.
• Max working pressure, liquid side, WVFX 10-25: 16 bar, WVFX 32-40: 10 bar.

WVFX 10-25, for high pressure refrigerants

• Designed for use with High Pressure refrigerants such as R410A and CO2.
• Media (liquid side): fresh water, neutral brine.
• Media temperature range, WVFX 10-25: –25 - 130°C.
• Opening differential pressure: max. 10 bar.
• Max working pressure, condenser side, WVFX 10-25 (High Pressure versions): 45.2 bar.
• Max working pressure, liquid side, WVFX 10-25: 16 bar.

WVS, pilot valve

• Servo-operated valve.
• Refrigerants (condenser side): CFC, HCFC, HFC, R 717 (NH3).
• Media (liquid side): fresh water, neutral brine.
• Media temperature range:–25 - 90°C.
• Opening differential pressure range, WVS 32-40: 0.5 - 4 bar, WVS 50-100: 0.3 - 4 bar.
• Max working pressure, condenser side: 26.4 bar. Max working pressure, liquid side: 10 bar.

• AVTA thermostatically operated water valves

AVTA thermostatic operated water valves are used for proportional regulation of water flow quantity in refrigeration plants with water-cooled condensers for condensing pressure regulation purposes. AVTA water regulating valves give modulating regulation of the condensing pressure and so maintain it constant during operation. When the refrigeration plant is stopped, the cooling water flow is shut off automatically. AVTA is designed for use with water or neutral brine. AVTA opens on rising bulb temperatures.

AVTA, pipe thread connections, for neutral media

• Forged brass valve body.
• Opens on rising sensor temperature.
• Media temperature: –25 - 130°C.
• Differential pressure: 0 - 10 bar.
• Max. working pressure: 16 bar.
• Max. pressure on sensor: 25 bar.
• Charge types: adsorption charge, mass charge, or universal charge.

AVTA SS, pipe thread connections, for aggressive media

• Stainless steel valve body.
• Opens on rising sensor temperature.
• Media temperature: –25 - 130°C.
• Differential pressure: 0 - 10 bar.
• Max. working pressure: 16 bar.
• Max. pressure on sensor: 25 bar.
• Charge types: adsorption charge. 

Solenoid Valves for refrigeration applications

EVR, normally closed (NC)
EVR (NC) is a normally closed, direct or servo operated solenoid valve for liquid, suction and hot gas lines with fluorinated refrigerants. EVR valves are supplied complete or as separate components, i.e. valve body, coil and flanges.

EVR, normally open (NO)
EVR (NO) is a normally open direct or servo operated solenoid valve for liquid, suction and hot gas lines with fluorinated refrigerants. EVR valves are supplied complete or as separate components, i.e. valve body, coil and flanges.

BML is a manual shut-off valve designed for installation in the liquid, suction and hot gas lines of refrigeration plants. The valve can be delivered with flare, ODF solder or ODF solder with extended ends. In the same product category, BMT 6 is a three-way manual shut-off valve with similar characteristics.

BML, flare/ solder ODF connections, with handwheelStraightway shut-off valve for all fluorinated refrigerants. Temperature range -55 - 100°C. Working range -1 - 21 bar. Max. working pressure = 28 bar. Max. test pressure = 30.8 bar.

BMT, threeway shut-off valve, flare connections, with handwheelThree-way shut-off valve for all fluorinated refrigerants.Temperature range -55 - 100°CWorking range -1 - 21 barMax. working pressure = 28 barMax. test pressure = 30.8 bar

GBC ball valves are manually operated shut-off valves suitable for applications where bi-directional flow is a requirement. 
GBC valves are approved for applications in liquid, suction, and hot gas lines in refrigeration and air conditioning systems. 
GBC valves offer maximum tightness across the seat and seal, with minimum pressure drop. 
GBC valves give maximum flow in the fully open position. They are designed for operation within a broad temperature range and are approved for use with any fluorinated refrigerant. Standard GBC valves may be used in applications using high pressure refrigerants, including R410A, and GBC bi-directional ball valves can be delivered with or without external access port. 
For CO2 applications a dedicated range is available with a max. working pressure of 90 bar (1300 psig). 
GBC valves are equipped with a one-piece seal cap to prevent tampering. Complies with European Safety Directive EN 378 (Safety and environmental requirements).
 

NRV and NRVH can be used in liquid, suction and hot gas lines in refrigeration and air conditioning plants with fluorinated refrigerants. NRV and NRVH can be supplied with flare and solder connections. They are also available with oversize solder connections providing flexibility in the use of check valves.

• Max. working pressure = 46 bar.
• Max. test pressure = 60 bar.
• Temperature of the medium: -50 - 140°C. 

Danfoss produces and delivers a complete range of sight glasses for all applications. Available in solder, flare, face seal or socket versions, they include types for monitoring of flow, moisture and liquid level. The Danfoss sight glasses indicators are optimized for the relevant refrigerants in the market.

SGP N / SGP I / SGP X sight glasses, for high pressure refrigerantsSGP is a series of sight glasses for high pressure applications (Max Working Pressure 52 bar/754 psig). SGP is available in versions optimized for refrigerants with mineral oil e.g. HCFC, and in versions optimized for non-flammable HFC refrigerants. SGP is available with flare, solder and socket connections, and with and without moisture indicators. 

SGR / SGI / SGN sight glasses, for low pressure refrigerantsFor low pressure applications (Max Working Pressure 35 bar/508 psig), Danfoss produces and markets sight glasses types SGR, SGI and SGN. They are available in versions optimized for refrigerants with mineral oil, e.g. HCFC, and in versions optimized for non-flammable HFC refrigerants, with flare, solder, face seal or socket connections, and with and without moisture indicators. 

Saddles for SGR/SGP socket type sight glassesSaddle for soldering onto refrigerant system tubing. The SGR/SGRN/SGRI/SGRH is screwed into the saddle. Available for most tubing sizes.