Alco 240RA8T7-T Solenoid Valve 7/8 inch ODF

Overview

The Alco 240RA8T7-T is a refrigerant solenoid valve from the Alco Controls range manufactured by Emerson Climate Technologies, supplied complete with 7/8 inch ODF connections. Solenoid valves of this type are installed in refrigeration and air-conditioning systems to control refrigerant flow electrically — opening when the coil is energised and closing when it is de-energised. The 240RA8T7-T is identified by Alco part number 044860 and is used in liquid line and hot gas applications on commercial and industrial refrigeration plant.

Seven Star LLC supplies the Alco 240RA8T7-T solenoid valve for cold chain, HVAC, and process cooling applications across the Sultanate of Oman and the GCC. Commercial kitchens, cold stores, supermarkets, food processing plants, and HVAC contractors depend on reliable refrigerant controls, and our team provides genuine Emerson Alco parts with regional delivery to Muscat, Sohar, Salalah, and beyond.

Operating Principle

A refrigerant solenoid valve is an electromechanical valve: an electromagnetic coil creates a magnetic field that lifts the valve plunger and allows refrigerant to flow; when power is removed, the spring returns the plunger to its seat and the valve closes. The valve opens and closes the liquid or hot gas line on command from the system controller, thermostat, or safety circuit.

The 240RA8T7-T is a complete valve body with 7/8 inch ODF (outside diameter female) solder connections, ready to be brazed into the refrigerant line. ODF connections are the standard termination for refrigeration piping, providing a clean, leak-free joint when brazed by a qualified technician. The valve is designed for the pressure and temperature conditions of commercial refrigeration circuits.

Engineering Design of the Alco 240RA8T7-T

Alco Controls has manufactured refrigerant flow controls for decades, and the 240RA series solenoid valves follow the established Alco design: a robust valve body, a serviceable coil assembly, and ODF terminations matched to standard refrigeration piping sizes. The 240RA8T7-T is the 7/8 inch variant of the series, supplied complete with part number 044860.

Because the valve is supplied as a complete unit, the installer brazes the body into the line, fits the coil, and connects the control circuit. Using the genuine Alco part number 044860 guarantees that the valve body, porting, and coil interface match the original equipment specification, which matters for flow capacity and reliable operation under system pressure.

Key Features

The Alco 240RA8T7-T is specified for refrigerant flow control in commercial and industrial systems. Its defining characteristics are:

• Genuine Alco Controls (Emerson Climate Technologies) refrigerant solenoid valve.
• 7/8 inch ODF solder connections for brazing into refrigeration piping.
• Supplied complete, identified by Alco part number 044860.
• Electrically operated flow control for liquid line and hot gas service.
• Designed for the pressures and temperatures of commercial refrigeration circuits.
• Reliable open/close operation on command from system controls and safety circuits.
• Suitable for cold stores, supermarkets, food processing, and HVAC applications.
• Supplied by Seven Star LLC for cold chain and HVAC projects across Oman and the GCC.

Industrial Applications

The 240RA8T7-T serves the refrigeration and air-conditioning systems that protect food, medicine, and industrial processes. Typical applications include liquid line solenoid duty on supermarket refrigeration racks, cold stores, blast freezers, and process chillers, where the valve opens and closes the liquid feed to the evaporator under thermostat control. Hot gas solenoid applications use the same valve family for defrost and capacity control circuits.

In Oman and the GCC, where ambient temperatures are extreme and cold chain integrity is critical, dependable refrigerant controls are essential. Seven Star LLC supplies the Alco 240RA8T7-T solenoid valve to refrigeration contractors, cold chain operators, and maintenance teams across the Sultanate of Oman and the GCC, with genuine parts and local support.

Reading the 240RA8T7-T Model Code

Emerson’s 240RA catalogue defines the model code field by field, and getting it right matters because several valves in the range share the same 7/8 in. connection while differing in port size and capacity. 240R is the valve series and A the design series; the following 8 is the port size expressed in sixteenths of an inch, making this a 1/2 in. port valve; T denotes copper extended ends, the ODF solder connection type; and 7 is the connection size in eighths of an inch, giving the 7/8 in. ODF ends. The trailing T in 240RA8T7-T identifies the mounting-stud version, which Emerson notes can be field-converted to the manual-stem arrangement; the equivalent manual-stem build is ordered as 240RA8T7M. Emerson lists the mounting-stud variant under product code number 044860, the standard valve under 060375 and the manual-stem valve under 045753.

Two catalogue notes are worth passing on to installers. First, 240RA valves ship without the solenoid coil, so the control voltage is chosen separately and one coil size fits every valve in the series. Second, the letter H no longer appears in 240RA part numbers because every valve in the range is now built with the high-temperature PTFE diaphragm that makes hot gas service possible — an older H-coded reference in a plant spare parts list still points to this valve.

Ratings, Capacity and Dimensions

Emerson rates the 240RA series for a maximum fluid temperature of 250 °F (121 °C) and a maximum working pressure of 500 psig (approximately 34.5 bar), with a maximum opening pressure differential (MOPD) of 300 psig (approximately 20.7 bar). The valve is a two-way, normally closed diaphragm design, listed under UL/CUL file number MP604, and Emerson cautions that mounting the enclosing tube more than 90° off the vertical-up position is not recommended — a common cause of sticking valves on hurried retrofits.

Nominal liquid capacity for the Alco 240RA8T7-T, rated at 100 °F liquid and 40 °F saturated evaporator to ARI Standard 760-87, is 15.6 tons (55.2 kW) on R-22, 14.8 tons (52.4 kW) on R-407C, 14.8 tons (52.5 kW) on R-134a, 10.3 tons (36.5 kW) on R-404A and R-507, and 10.1 tons (35.0 kW) on R-502. Those figures are what a designer sizes against; the 7/8 in. connection alone does not determine capacity, because the 1/2 in. port of this build passes considerably less than the 3/4 in. port of a 240RA12T7 on the same line size. Overall dimensions for the mounting-stud version are 4.80 in. and 1.34 in. on the vertical axes, 3.41 in. across and 7.13 in. end to end, with 0.75 in. connection depth. Service spares are available as the complete valve kit KS30321 (PCN 060626), the manual opener kit KS30066 (PCN 044657) and the gasket kit KG10028 (PCN 054356), which covers every 240RA valve.

Technical Specifications

The following table summarises the key parameters of the Alco 240RA8T7-T solenoid valve:

Request a Quote for Alco 240RA8T7-T Solenoid Valve 7/8 inch ODF

Request a formal quotation for the Alco 240RA8T7-T solenoid valve through the Seven Star LLC RFQ portal, and our team will confirm availability, lead time and delivery to Oman or any GCC destination. As a trusted supplier of Emerson Alco refrigerant controls in the region, we also provide coil selection guidance and application support for refrigeration contractors and cold chain operators. Contact Seven Star LLC today.

Installation and Spares Guidance

The 240RA8T7-T must be installed by a qualified refrigeration technician: braze the 7/8 inch ODF connections into the line with the appropriate refrigerant circuit precautions, then select the solenoid coil matching the control voltage of the system and verify valve operation after commissioning. For cold chain operators in Oman and the GCC, keeping a genuine spare valve and coil in stock reduces downtime. Seven Star LLC provides coil selection support and genuine Emerson Alco parts with regional delivery.

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