详细说明
Product Name: Tkfm importers Flanged Fully Welded Ball Valve Application: Industrial Usage, Water Industrial Usage Standard: GB DIN JIS ASTM Temperature: Normal Temperature Function: Flow Regulating Valve Type: Floating Ball Valve Structure: Floating Ball Valve Channel: Straight Through Type Nominal Pressure: PN1.0-32.0MPa Driving Mode: Manual Connection Form: Welding Material: Ductile Iron Media: Water Oil Gas Size: DN50 or Customerized Ball: 304 Trademark: TKFM Transport Package: Wooden Packing Specification: Ductile iron Origin: China Product Description We pay much attention in Test process:(1) Shell Hydrostatic TestANSI B 16.34 Section 7.1Valve Size NPSTest pressureTest Time. SceBelow DN501:5 times the 100°F15 SceDN65~DN200Rating of ANSI Class60 SceUp DN250Max. Operating Pressure180 SceTest pressure should be above 1.5 times than the valve's Max work pressure (100F)(2) Seal Hydrostatic TestThe pressure should be more 1.1 times than working pressure by seal hydrastatic testANSI B 16.34 Section 7.2Valve Size NPSTest pressureTest Time. Scebelow DN501:1 times the 100°F15 SceDN65~DN200Rating of ANSI Class30 Sceabove DN250Max. Operating Pressure60 SceTest pressure should be more 1.5 times than the valve's Max work pressure (100F)180Sce(3) Seal Air TestSeal air leakage test is based on 80PSIG(6kgf/cm2) inert-gas or the air reach the test pressure, then close the valve. after that check the valve whether it is leakage or not.
