Concentric size head

Standards: DIN11850/11852, 3A, SMS, ISO, IDF, BS, BPE, AS, JIS 

 Surface treatment: 6 surface treatments such as mirror polishing, satin polishing, magnetic polishing, sandblasting, sandblasting, pickling, etc. 

 Internal surface: Ra<0.8μm, Ra<0.51μm, Ra<0.4μm, using mechanical polishing and electropolishing process 

 External surface: Ra 0.8μm mechanical polishing 

 Material: ASTM304/316L 1.4301/1.4404 

 Certification: EN10204-3.1 certificate 

 Specification: 1/2 "-8", DN10-DN200