(211) Used with: Copper, brass, aluminum, and welded steel hydraulic tubing that can be flared. Advantages: Low cost, reusable. Available with long or short nut and in wide range of styles and sizes. Will withstand burst pressure of standard tubing. Good vibration characteristics. Long nuts used where excessive vibration is present. Forged nuts available for refrigeration applications. Seal can be connected and disconnected frequently without damage. Typical applications: Fuel, oil, water, LP and natural gas lines, refrigeration (except where frost nuts are required), hazardous liquids or gaseous chemicals not corrosive to tubing material or brass.
(122) Used with: Copper, brass, aluminum, and welded steel hydraulic tubing that can be flared. Advantages: Low cost reusable assembly. Recessed and protected threads and seats designed to resist pullout. Short profile of nuts and bodies for use in tight spaces. Also allows close tube bends. Nuts available in brass or steel. Characteristics: Good vibration resistance. Will withstand burst pressure of standard tubing. Typical applications: Automotive brake, fuel and oil lines. LP and natural gas connections. Hazardous liquids, air, water, fuel, oil or gaseous chemicals not corrosive to tubing material or brass.