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Danfoss 032L1188 EVR 10 Solenoid Valve 1/2 in Solder NC

Description

EVR 10: a 1/2 in solder solenoid valve for liquid and suction lines

Danfoss 032L1188 is the EVR 10 valve with 1/2 in solder connections. The EVR data sheet describes the range as direct- or servo-operated valves suitable for liquid, suction and hot-gas lines with most refrigerants, including flammable refrigerants, with a media temperature up to 105 C. The EVR 10 belongs to the servo-operated group with a floating diaphragm.

This code is normally closed with a 10 mm orifice and Kv 2.2 m3/h. It has a manual operation option for service, and the store lists compatibility with mineral, alkylbenzene, PAG, PAO, POE and PVE lubricants. EVR valves and coils are sold separately.

Technical specifications

Parameter Specification
Danfoss code number 032L1188
Type EVR 10
Function Normally closed (NC)
Operation Servo-operated (diaphragm)
Connection 1/2 in solder (ODF), brass body
Orifice 10 mm
Kv / Cv 2.2 m3/h / 2.4 gal/min
Max. working pressure 45.2 bar
Medium temperature -40 C to 105 C
Min. opening differential pressure 0.03 bar
Max. opening pressure differential (MOPD) 38 bar with 10 W AC coil and BJ/BX coil; 20 bar with 20 W DC coil
Manual operation Yes
Ambient temperature -40 to 80 C
Coil Not included (ordered separately)
Lubricants compatibility AB; MO; PAG; PAO; POE; PVE
Approvals as listed EAC; UL; UA
Net weight 0.379 kg
EAN 5702428942980

Pressure limits and coil choice

The opening pressure differential that the valve can tolerate depends on the coil. With the 10 W AC coil or a BJ/BX coil the store gives 38 bar, while a 20 W DC coil gives 20 bar. The minimum differential for opening is only 0.03 bar, which allows use in low-pressure drops on liquid lines.

The valve is rated for 45.2 bar working pressure and sits in the PED category Article 4, paragraph 3. The refrigerant list includes R134a, R22, R125, R152a, R1234yf and R1234ze(E); UL approval covers R404A, R407A, R407C and other refrigerants as listed on the store page.

Brazing, installation and ordering

The extended solder ends mean the valve normally does not have to be dismantled when brazing, but follow the data sheet instructions and keep the body cool. Place the valve with the coil upright and ahead of the expansion valve, after a filter drier.

Confirm refrigerant, pressure, coil type and voltage before ordering. Seven Star LLC is an independent supplier in Muscat; send 032L1188 and we will quote the valve with the coil you require.

On a typical refrigeration rack the EVR 10 serves as a liquid-line shut-off to a single evaporator, or as a pump-down valve ahead of the expansion valve. In that service, fit a filter drier upstream and size the coil for the supply voltage of the control panel. If the plant uses a refrigerant not named here, check the data sheet and ask us before ordering.

The valve is also available in other connection sizes and in flare versions, each with its own code number.

A good enquiry for 032L1188 lists the code, the quantity, the site, the required documents and any approval certificates your inspector will ask for. Sending these together, rather than one by one, shortens the exchange and reduces the chance of a mismatch at delivery.

Documents and quotation

The attached Danfoss EVR 2 to EVR 40 data sheet AI249086497583 holds all versions and coil data. More valves are under solenoid valves.

Datasheets & Documents
  • PDF Datasheet Danfoss EVR 2 - EVR 40 solenoid valve data sheet AI249086497583 (manufacturer, unaltered) Download
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About brand

Danfoss is the Danish engineering group that makes refrigeration and air-conditioning controls, heating components, variable speed drives and mobile hydraulics. Mads Clausen founded it on 1 September 1933 at his parents' farm in Nordborg on the island of Als, after making his first refrigeration expansion valve in 1932. Nordborg is still the group's headquarters, and Danfoss remains controlled by the Clausen family through the Bitten & Mads Clausen Foundation.

Danfoss company profile

Founded 1 September 1933, Nordborg, Denmark, by Mads Clausen (1905–1966)
First product Thermostatic expansion valve for refrigeration
Headquarters Nordborg, Denmark
Ownership Private; majority controlled by the Bitten & Mads Clausen Foundation and the Clausen family
Size About 42,000 employees (2023)
Business segments Danfoss Climate Solutions (refrigeration, air conditioning and heating), Danfoss Drives (VLT and VACON frequency converters, soft starters), Danfoss Power Solutions (mobile and industrial hydraulics)
Brands in the group VLT, VACON, Eaton Hydraulics (bought 2021), Ikusi radio remote controls

Milestones

  • 1932–1933: First expansion valve; the company is founded in Nordborg.
  • 1939: 26 employees. By the 10th anniversary in 1943 the company has 179.
  • 1950s: Rapid growth turns Nordborg into a Danfoss town with housing and schools for its workforce.
  • 1968: Danfoss launches its VLT frequency converter, one of the first mass-produced AC drives.
  • 2014: Acquisition of the Finnish drives maker Vacon, now the VACON brand.
  • 2021: Acquisition of Eaton's hydraulics business.

Choosing Danfoss products

For solenoid valves, check the operating principle. A direct-operated valve such as EV210B opens even at 0 bar differential pressure. A servo-operated valve such as EV220B needs a minimum differential (typically about 0.3 bar) to open, while an assisted-lift valve such as EV250B works from 0 bar. Coils are ordered separately, so the voltage on the coil (for example 230 V AC or 24 V DC) must match the control circuit. For drives, the VLT family is split by application: FC 51 Micro Drive for small machines, FC 102 HVAC Drive for fans and pumps in buildings, FC 202 AQUA Drive for water, and FC 302 AutomationDrive for demanding industrial duty.

Where Danfoss products are used

In Oman and the GCC, Danfoss drives run pumps, fans and compressors in district cooling plants, water and wastewater stations, desalination and building HVAC. Danfoss pressure switches, transmitters and solenoid valves are built into chillers, refrigeration plants, boilers and hydraulic systems, and AB-QM valves balance chilled-water circuits in large buildings.

Danfoss products we list

Family Examples
Variable speed drives and soft starters VLT Micro Drive FC 51, VLT HVAC Drive FC 102, VLT AQUA Drive FC 202, VLT AutomationDrive FC 302, FC 280, iC2-Micro, VACON NXP, MCD 600 soft starter
Solenoid valves and coils EV220B, EV210B, EV250B, EV225B steam, EVR 25, AM230C coil
Pressure switches and thermostats KP 37, KP 44, RT 200, CS, MBC 5000, KPS 77, RT 101
Pressure transmitters MBS 3000, MBS 5100, MBS 3250, MBS 4251 Ex, AKS 33, DST P92S SIL 2
HVAC and refrigeration valves AB-QM PICV, NovoCon S, AB-PM, AVTA, ICV, TE 5 element

Ordering Danfoss products: what we need

Send the Danfoss code number from the label (for example 032U7115 or 131B0149) or the full drive type code (FC-302P3K0T5...). For drives, add the motor power, supply voltage and any fieldbus option. For valves, add the size, connection, medium and coil voltage. For pressure switches and transmitters, add the range, output and pressure connection.

Facts checked against Danfoss's company history pages and published company data, October 2026.

Frequently Asked Questions

What is Danfoss 032L1188?
An EVR 10 solenoid valve: NC, 1/2 in solder ODF, brass body, 10 mm orifice, Kv 2.2 m3/h, servo-diaphragm.
Which refrigerants are listed?
R134a, R22, R125, R152a, R1234yf, R1234ze(E) and more; see the store page and data sheet.
Is the coil included?
No. EVR valves and coils are sold separately.
Does it have manual operation?
Yes, a manual operation option is listed.
Which document is attached?
The Danfoss EVR 2 - EVR 40 data sheet AI249086497583.