Product parameter 
(1) Nominal diameter: DN25-300mm;
(2) Nominal Pressure: M level (medium-pressure valve): PN20, PN50, DN25-300; 
                                   H level (high-pressure valve): PN100, DN25-150;
(3) Connection:  clip-on
Pipe flange: PN20 comply with GB9113.6-88 flange standards; 
                    PN50 comply with GB9113.7-88 flange standards; 
                    PN100 consistent with GB9113.8-88 flange standards;
Flange distance: flange comply with IEC534-3-2-1984;
(4) Part material:
Body: ZG25; ZG1Cr18Ni9Ti; ZG0Cr18Ni9; ZG0Cr17Ni12M2Ti
Seat: FN-type ... ... Teflon added molybdenum disulfide (the material of O-ring is NBR) 
         FV-type ... ... Teflon Added molybdenum disulfide (the material of O-ring is rubber )
         L-type ... ... .0 Cr17Ni12Mo2; 1Cr18Ni9Ti; stainless steel sheet; 
         H-type... ... 0Cr17Ni12Mo2; 1Cr18Ni9Ti; stainless steel;
         HS-type ... ...0Cr17Ni12Mo2; 1Cr18Ni9Ti; stainless steel welding partly with tungsten chrome cobalt alloy;
        HB-type ... ... 0Cr17Ni12Mo2; 1Cr18Ni9Ti; stainless steel full welding with tungsten chrome cobalt alloy;
Application:
It is suitable for high temperature medium and can be widely used fluid control of liquid, gas, slurry in power plants, petroleum, metallurgy, light industry, food