Fluorine Swing Check Valve 
 Fluorine swing check valve is a flow of relying on the media itself automatically start, closing the valve to prevent reverse flow of medium automatic valve. Performance Specifications 

 Follow the norms STANDARD 
 Design and manufacture of GB / T 12235, GB/T12236 
 Structure length GB / T 12221, JB / T 96 
 Flange Dimensions JB / T 78, JB / T 79 
 Pressure Test GB / T 13927 
 Flag GB / T 12220 
 Supplier GB / T 12252 
 Flanged valve design and manufacturing in line with the basic structure of the formation of Chinese national standard: swing, straight lift Nominal pressure: PN1.0 ~ 1.6 (MPa) Nominal diameter: DN15 ~ 500 (mm) Basic Model: H41F3, H41F46, H44F3, H44F4 
 Main parts 

 No. Name of gray cast iron cast steel parts 
 Z C P R 
 1 Body, Bonnet Ht250 WCB CF8 CF8M 
 2 lining / seat FEP (F46) PCTFE (F3) PFA (fusible PTFE) 
 3-axis, the valve (plate) 1Cr13/35WCB1Cr18Ni1900Cr17Ni14Mo2 
 4 bolt 35 34 1Cr17Ni2 1Cr17Ni2 
 5 45 45 0Cr18Ni9 0Cr18Ni9 nut 

 No. Name of gray cast iron cast steel parts stainless steel low carbon steel 
 Z C P R PL RL 
 A valve body, valve cover HT250 WCB CF8 CF8M CF3 CF3M 
 2 lining / rubber valve cover hard-liner (NR) FEP (F46) PCTFE (F3) PFA (Teflon soluble) 
 3-axis, the valve (plate) 1 Cr13/35WCB 1Cr18Ni9/CF8 00Cr17Ni14Mo2/CF3M 
 4 bolt 35 35 1Cr17Ni2 1Cr17Ni2 1Cr18Ni9Ti 1Cr18Ni9Ti 
 5 nut 45 45 0Cr18Ni9 0Cr18Ni9 0Cr18Ni9 0Cr18Ni9