Copper Reducer

Category Overview

The copper reducer is a brazeable transition fitting used to connect copper tubes of different diameters securely in HVAC, air conditioning and refrigeration systems. Using a reducer where a change of diameter is required on the line minimises the risk of leaks and keeps the refrigerant circulation trouble-free. The Yedepa.com Copper Reducer category brings together the inch and metric size pairs that refrigeration technicians and installers need most often in the field. All products are manufactured from high-purity electrolytic copper in accordance with EN standards and can be joined easily with brazing rod using phosphor or silver-based filler.

Products You Can Find in This Category

The Yedepa.com Copper Reducer category brings together many sizes you will need in split air conditioners, VRF/VRV systems, cold storage rooms, chiller lines and refrigerator/freezer repairs. The inch-mm conversions and diameter transitions most commonly encountered in the field are kept in stock in particular:

• Copper Reducer 22 mm x 16 mm — a common transition size on the liquid/gas lines of medium-capacity split air conditioners.
• Copper Reducer 7/8" x 3/4" (22 mm x 19 mm) — a critical part when connecting inch-sized systems of American origin to metric lines.
• Copper Reducer 1-3/8" x 1-1/8" (35 mm x 28 mm) — the large-diameter transition preferred on high-tonnage air conditioning and cold room lines.
• Copper Reducer 54 mm x 28 mm — used in industrial refrigeration and central systems to step down from the main line to a branch line.
• Copper Reducer 1-1/8" x 7/8" (28 mm x 22 mm) — a frequently sought size on multi-split and VRF indoor unit connections.

Selection Criteria and Tips

The first rule in choosing the right copper reducer is to measure the outside diameter of the existing tube on your line precisely. Because both metric (e.g. 22 mm, 28 mm) and inch (e.g. 7/8", 1-1/8") sized tubes are used together in the Turkish market, evaluating the equivalents of both systems together in the catalogues reduces the margin of error. Polishing the inner and outer surfaces of the reducer with fine abrasive or a cleaning pad before brazing is essential for good capillary action (filler flow) and leak-tightness. In high-pressure R410A and R32 systems, using copper parts with adequate wall thickness that comply with the ASTM B280 (ACR) standard is of critical importance for safety. In addition, feeding nitrogen gas into the line during brazing is a professional practice that prevents oxidation and protects the compressor and the expansion valve.

Copper Reducer at Yedepa.com

Yedepa.com, as a B2B spare parts supplier that has been serving the HVAC and refrigeration sector for years, keeps a wide stock of copper reducers so that technicians and service companies can meet all their fitting needs in a single order. All common sizes from 16 mm to 54 mm are listed on the product pages together with inch-mm conversion tables, so the risk of ordering the wrong size is minimised. In-stock products are prepared for shipping after order confirmation, and our technical support team helps you via the WhatsApp line if you have any doubts about size or compatibility. Besides copper reducers, you can also obtain complementary copper fittings such as elbows, couplings, caps and tees in the same order from Yedepa.com.