Data sheet 2-step solenoid valve ICLX 65 bar/52 bar valves used in wet return and suction lines for the opening against high differential pressure

Data sheet 2-step solenoid valve, ICLX Description ICLX 2-step solenoid valves belong to the ICV family. ICLX are used in suction lines for the opening against high differential pressure, e.g. after hot gas defrost in large industrial refrigeration systems with ammonia, uorinated refrigerants hydrocarbons or CO2. The small sizes are designed for MWP of 65 bar, while large sizes have MWP of 52 bar. The ICLX valve is factory con gured to open in 2 steps. By following a simple procedure, the valve can be con gured to open in 1 step only. In 2-step con guration, step 1 opens to approx. 10% of the...

Data sheet 2-step solenoid valve, ICLX Low Pd is the key objective and makes the ICLX valve ideal for applications that are sensitive to differential pressure. Though Pd is kept low, it can still be quanti ed and must be considered when choosing valve size. See section - Selection of ICLX valve - for the impact. The main valve is provided with two pilot solenoid valves, as well as a nipple for connection to external pilot pressure. The external pilot pressure line must be connected to a system pressure (p2) which is at least 1.5 bar / 20 psi higher than the inlet pressure (p1) of the valve. The...

Data sheet 2-step solenoid valve, ICLX Figure: Two step opening principle NOTE: The ICLX valve is kept in its open position by hot gas. The hot gas condenses in the cold valve and creates liquid under the servo piston. When the pilot valves change status to close the ICLX, the pressure on the servo piston equalises with the suction pressure through the pilot valve (pos. 2). This equalisation takes time because condensed liquid is present in the valve. The exact time taken from when the pilot valves change position to complete closing of the ICLX will depend on temperature, pressure, refrigerant...

Data sheet 2-step solenoid valve, ICLX The ICLX concept is developed to highest flexibility of direct welded connections. For valve sizes ICV 32 - ICV 65 a wide range of connection sizes and types is available. ICV 100 - ICV 150 are available in butt-weld DIN and butt-weld ANSI nominal sizes. The direct welded (non-flanged) connections secures low risk of leakage. 5 | © Danfoss | Climate Solutions | 2026.05

Data sheet 2-step solenoid valve, ICLX Design Valve body and top cover material Low temperature steel There are seven valve bodies available Table: ICV 32, 40, 50 and 65 ICV 32 6 | © Danfoss | Climate Solutions | 2026.05

Data sheet 2-step solenoid valve, ICLX Figure: ICLX 100 – 150 Danfoss M27H0260_1 Table: Material speci cation No. Valve body ICLX 32-65: Low temperature steel ICLX 100150: Low temperature steel Main piston Bleed piston Seat plate main Seat plate bleed Fibre, non-asbestos Spindle manual opener Stainless steel Packing gland Steel Spring - main Stainless steel Spring - bleed Stainless steel Chloroprene (neoprene) Chloroprene (neoprene) ICLX 100-150 only, Chloroprene (neoprene) Chloroprene (neoprene) O-ring O-ring Chloroprene (neoprene) Chloroprene (neoprene) Chloroprene (neoprene) Stainless steel...

Data sheet 2-step solenoid valve, ICLX Capacity Valve selection based on capacity calculation As for extended capacity calculations and valve selection based on capacities and refrigerants, please refer to Coolselector®2. Rated and extended capacities are calculated with the Coolselector®2 calculation engine to ARI standards with the ASEREP equations based on laboratory measurements of selected valves. Download Coolselector®2 for free at coolselector.danfoss.com Selection of ICLX valve Figure: Wet suction line Location of valve in system (marked with grey) Hot gas bypass & defrost line High-pressure...

Data sheet 2-step solenoid valve, ICLX 9 | © Danfoss | Climate Solutions | 2026.05

Data sheet 2-step solenoid valve, ICLX Table: ICLX 50 10 | © Danfoss | Climate Solutions | 2026.05

Data sheet 2-step solenoid valve, ICLX There is a wide range of connection types available with ICLX valves: • A: Butt weld, ANSI (B 36.10) • SOC: Socket weld, ANSI (B 16.11) • SA: Solder connection, ANSI (B 16.22) Table: Connections Butt-weld ANSI Socket weld ANSI Solder ANSI The ICLX valves are approved in accordance with the European standard specified in the Pressure Equipment Directive and are CE marked. 11 | © Danfoss | Climate Solutions | 2026.05

Data sheet 2-step solenoid valve, ICLX Table: SOC: Socket welding ANSI (B 16.11) 12 | © Danfoss | Climate Solutions | 2026.05

Data sheet 2-step solenoid valve, ICLX Product code numbers Ordering from the parts programme Note: The ICLX function modules can only be used in housings produced in or after week 49 2012; thus, the week code on the housing must be 4912 or higher. Table: Example (select from table 24 and 25) Table: ICV 32 valve body w/different connections Table: ICV 32 valve body w/different connections "’Including external pilot connection, NC/NO pilot valves, gasket and O-rings 13 | © Danfoss | Climate Solutions | 2026.05

Data sheet 2-step solenoid valve, ICLX A = Butt-weld ANSI SA = Solder ANSI SOC = Socket weld ANSI Ordering complete factory assembled valve Figure: ICLX 32 Table: (body, function module / top cover) Type ICLX 32 Available connections Select from parts programme ICLX 40 Ordering from the parts programme NOTE: The ICLX function modules can only be used in housings produced in or after week 49 2012; thus the week code on the housing must be 4912 or higher. Table: Example (select from table 28 and 29) Valve body A 40 (1 ½ in) 027H4121 Table: ICV 40 valve body w/different connections Top cover ICLX...

Data sheet 2-step solenoid valve, ICLX Table: ICV 40 valve body w/different connections (2) Select from parts programme 15 | © Danfoss | Climate Solutions | 2026.05

Data sheet 2-step solenoid valve, ICLX Ordering from the parts programme NOTE: The ICLX function modules can only be used in housings produced in or after week 49 2012; thus, the week code on the housing must be 4912 or higher. Table: Example Table: ICV 50 valve body w/different connections Table: ICV 50 valve body w/different connections (1) Including external pilot connection, NC/NO pilot valves, gasket and O-rings D = Butt-weld DIN A = Butt-weld ANSI SOC = Socket weld ANSI SD = Solder DIN SA = Solder ANSI 16 | © Danfoss | Climate Solutions | 2026.05