HLS small-caliber single-seat control valve

Body type: casting through single-seat ball valve Nominal Diameter: 20,25mm Nominal pressure: ANSI 125,150,300,600 JIS 10,16,20,30,40K PN1.6,4.0,6.4MPa connection type: Flange: FF, RF, RJ, LG, groove type, embedded flange Standards: JIS B2201-1984, ANSI B16.5-1981, GB / T9112 ~ 9124-2000, such as welding connection: scarfing SW welding material : steel (ZG230-450), cast stainless steel (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, ZG00Cr18Ni12Mo2Ti), titanium valve cover: Normal type (P): - 17 ~ + 230 ℃ Elongation type Ⅰ (E1): - 45 ~ -17 ℃ + 230 ~ + 566 ℃ elongation Ⅱ type (E2I): - 100 ~ -45 ℃ elongation Ⅱ type (E2W): - 196 ~ -100 ℃ Note: The operating temperature must not exceed the allowable range of various materials. Gland type: Bolt Clamp Packing: V-type PTFE packing, impregnated with PTFE asbestos packing, asbestos braided packing. Valve components Spool type: single-seat piston-type plug. Flow characteristics: equal percentage metal seat (%) and linearity (L), the reference flow characteristic curve Cv value from 0.04 to 14 high-precision flow characteristics in line with IEC534-2 standard soft seat equal percentage (%) and linear characteristic (L), the reference flow characteristic curve Note: Operating temperature PTFE seat and pressure on, the reference flow characteristic curve material: stainless steel (1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti, 17-4PH, 9Cr18,316L), stainless steel Stellite welding, and corrosion-resistant titanium alloys