BS4504 forged large Special Flange will be used in different areas, has a special meaning and significance in the industry, play an important role in the machinery industry and value, in the correct and method. High pressure large flange connection steel gate valve peoduct structure features: high pressure large flange connection steel gate valves conform to the requirement of domestic and international advanced standard, reliable-sealin, excellent performance, beautiful appearance. Dics and seat sealing surface with iron base alloy welding or department too stand stellite cobalt-based hard alloy surfacing and become, wear resisting, high temperature resistance, corrosion resistance, good abrasion resistance,long service life. High pressure large flange valve stem after quenched and tempered and surface nitriding treatment, has the good corrosion resistance and abrasion resistance. Gate using wedge flexible disc struture, large diameter set the rolling bearing, friction small, easy opening and close. It can be used in a variety of piping flange standards and flange seal face type, can meet the needs of all kinds of engineering and the user requirements.
B16.5 Flange , ASME B16.47 Flange, DIN 2573 Slip On Flange, DIN 2631 Welding Neck flange, JIS Flange 5K SOP Flange and JIS Flange 10K SOH Flange. ASME Flange include ASME B16.5 Flange, ASME B16.47-A Flange, ASME B16.47-B Flange, this standard system include slip on flange, blind flange, welded neck flange, Threaded Flange, lapped joint flange (loose flange), socket welded flange, B16.36 Orifice Flange, long Weld Neck Flange and special flange, sizes from 1/2 inch to 60 inch, class 150, class 300, class 600, class 900, class 1500, class 2500.
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