All-iron refrigerant liquid pipe fittings

Rubber freon hoses for car air-conditioning installations are mounted with special fittings made of iron or copper. The type of the fitting connection can be individually designed to match a particular type of a car. The angle and shape of the fitting pipe determine how the fitting is attached. The typical types of connections in the car air-conditioning installations are given below:

pipe fitting with UNF female thread (swivel nut) and o-ring seal;
fitting wtih UNF female thread (swivel nut), SAE type (45° cone);
compressor fitting with female thread 1″-14 UNF (swivel nut);
pipe fitting with UNF male thread with o-ring seal;
fitting with UNF male thread (socket of a quick release coupling);
fitting with UNF female thread (swicel nut), ORFS type;