Trane O-rings & Gaskets

Overview

The TRANE 98701 is a Sil-Fos 15 phosphor-silver brazing alloy ring sized for 3/8 inch tubing connections. These pre-formed rings are used to join copper refrigerant lines and fittings during HVAC system installation and service. The Sil-Fos 15 alloy designation indicates a silver-bearing, self-fluxing composition suited for copper-to-copper joints, delivering a strong, leak-resistant bond when properly applied. HVAC technicians rely on pre-formed rings to deposit a consistent, controlled amount of alloy at the joint, reducing the risk of over- or under-brazing on refrigerant circuit connections. These brazing rings are suited for residential and light commercial HVAC applications where 3/8 inch copper tubing is joined at coil connections, line set fittings, or service valve assemblies. The pre-formed ring format is particularly useful in tight equipment cabinets where feeding rod filler material by hand is difficult. Licensed HVAC technicians and refrigeration mechanics are the primary installers in this application. Key Features Sil-Fos 15 alloy composition — self-fluxing on copper-to-copper joints Pre-formed ring format for consistent alloy placement at the joint Sized for 3/8 inch tubing connections Produces a high-strength, leak-resistant brazed joint in refrigerant circuits Reduces material waste compared to cut-length rod filler Compatibility Designed as an OEM-style brazing consumable for copper-to-copper refrigerant tubing joints commonly found in residential and…