Heldon’s R400 Series fittings are packed or stamped R400 and are suitable for R410A, R407C and many other 400 series refrigerants, with Fitting Safe Working Pressures (F SWP) of approximately 5,000kPa at ambient, in sizes currently up to 1 5/8”.
Heldon ‘Standard’ fittings up to 2 5/8” are also available for the Low-Pressure side of R410A systems (2,500kPa).
