The main material of spectacle flange is:
Carbon steel: ASTM A105 etc.
Low temperature carbon steel: A516 Gr.60,Gr.65,Gr.70 etc.
Stainless steel: A213 Gr.SS316L,SS304L,SS321 etc.
Haihao flange factory manufactures the spectacle flanges according to standard ASME/ANSI B16.48,MSS-SP-6.(Flange Standard)
The spectacle flange are used together with flanges,so it has a surface requirement.Our spectacle blind flanges are available with raised face, flat face,or RTJ faces as per requirement.
The spectacle flanges always have a handle.Spacer and spade’s handle is for easy control,spectacle blind flange handle is to control and connect the two parts.(How to use a spectacle blind flange?)
Haihao Group manufacture steel pipes,butt weld pipe fitting,forged steel pipe fittings and flanges products more than 30 years,and we put quality and reputation on the first position.Hebei Haihao strictly carrys out rigorous quality control and products inspection to ensure continual quality flanges and pipe fittings.