Solenoid Valve – Alco 240RA Series (Refrigerant, 2-Way NC)

Overview

The Alco 240RA series is a proven refrigerant shut-off solution designed to minimize pressure drop and speed up installation. Extended ODF ends allow quick brazing without disassembling the valve body. The PTFE diaphragm withstands higher temperatures, and models are available with manual stem (certain sizes) for service overrides. Typical operating envelope includes MOPD up to ~300 psig and max fluid temperature up to ~250–285 °F (model-dependent). The coil platform covers common AC/DC voltages and uses quick retention hardware for fast swaps.
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Key Features

• 2-way, normally-closed diaphragm solenoid valve for liquid/suction/hot-gas lines. 

• Brazed-in installation; extended ends, no body disassembly. 

• PTFE diaphragm for high-temperature duty; stainless enclosing tube. 

• Shared coil family across sizes; multiple voltages available (see ESC/coil docs). 

• MOPD up to 300 psig, max fluid temp ~250–285 °F (by model). 

• Manual stem options on select sizes (e.g., 240RA20). 

Typical Applications

• Supermarket refrigeration racks (liquid line shut-off, hot-gas defrost)

• Industrial chillers, process cooling, cold rooms

• Suction line or hot-gas bypass control in HVAC/R systems 

Model Numbering

240RA 8T5MVLC – series / size / connections / options (use the catalog to decode your exact code for size, ODF ends, and options). 

Selection & Sizing Notes

• Choose line size/ODF to match pipe; verify MOPD vs. system ΔP.

• Pick coil voltage & frequency from the coil selection sheet.

• If you require manual service override, choose a manual-stem variant. 

Installation & Commissioning

• Braze with the valve assembled (per spec) using heat-sink and nitrogen purge; avoid overheating coil/enclosing tube.

• Mount the enclosing tube roughly vertical up (±90° recommendation) for best reliability.

• After install, leak-test, energize coil, and confirm flow/close function under actual ΔP. 

Compliance / Notes

• Refer to latest Copeland/Copeland-Alco documentation; certain sizes/variants carry UL/cUL (file MP604) and PED markings as applicable. Coils sold separately. 

FAQ

Q1: Is 240RA pilot-operated or diaphragm?

A: It’s specified as a 2-way, normally-closed diaphragm valve for refrigerant service. 

Q2: Which services does it cover?

A: Liquid line, suction line, and hot-gas applications (model-dependent). 

Q3: Do I need to remove parts before brazing?

A: No—brazing without disassembly is a listed feature of the 240RA design. 

Q4: What about coil voltages?

A: A shared coil family supports multiple voltages; select per your panel’s supply (see ESC/coil tech info). 

Q5: What’s the max operating range?

A: MOPD up to ~300 psig and max fluid temp ~250–285 °F (check your exact model’s datasheet). 

Call to Action

Request a quote—send your exact code (e.g., 240RA-8T5M/T11/…), line size/ODF, refrigerant, ΔP/MOPD, and coil voltage. Seven Star LLC will validate sizing, confirm availability, and provide the best regional pricing.