Product Details
Product Description
Product Description
What is double flange butterfly valve?
Double flange butterfly valve used for regulation and flow sectioning in water supply facilities, plumbing, irrigation, etc. It has low head loss due to a hydrodynamic design of the disc, it is 100% water tight and need no gaskets to be installed.
General
Size: 2" and above.
Pressure Rating: PN6-PN25
General applications: Water. Oil. Gas.
Design
Design & Manufacture: API 609 are basic, other norms could be used according to orders.
F TO F dimensions: API 609, ASME B16.10,BS EN 558
Connection: ASME B16.5, EN 1092, JIS 5K-20K. BW, RTJ are available.
Safety design: anti-blow out stem.
General material
BODY: CAST IRON, DUCTILE IRON, CARBON STEEL, STAINLESS STEEL
DISC: ALUMINIUM BRONZE (C95400, C95500, C95800), STAINLESS STEEL(CF8,CF8M,CF3,CF3M,2205,2507),MONEL(K-400,K-500)
STEM: 13CR, SS304, SS316, F51, F53, F55, 17-4PH, INCONEL 718, MONEL K-500
SEAT: EPDM, NBR, BUNA-N, VITON
OPERATOR: GEAR UNIT
Test
Inspection and approval norm: API598, API6D.
Quality control
100% Chemical analysis and mechanical test with raw materials of each heat numbers.
100% DPT test with the castings, partly MT or UT test, RT is always available if required.
100% hydraulic test with the shell and seal and low pressure air test.
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