Marine spiral flange butterfly valve GB / T3036-1994

Purpose and characteristics

Marine spiral flange butterfly valve GB / T3036-94 is suitable for water supply and drainage, gas pipelines such as ships, medicine, chemical industry, petroleum, electric power, light textile, paper making, etc., as the function of regulating flow and intercepting medium, and has the function of compensating the thermal expansion and contraction of the pipeline Function.

Its main features are:
novel design, reasonable, unique structure, light weight, easy operation, rapid opening and closing; in
addition to the function of adjusting and shutting off, the marine spiral flange butterfly valve can compensate for the thermal expansion and contraction caused by the temperature difference of the pipeline. It can also provide convenience for installation, replacement and maintenance; the
sealing parts can be adjusted and replaced, and the sealing performance is reliable.

Use standard

Design standard: GB / T3036-1994
flange connection size: GB / T9113.1-2000; GB / T9113.2-2000; GB / T9115.1-2000; GB / T9115.2-2000
pressure test: GB / T 13927-1992; JB / T 9092-1999

Marine central flange spiral butterfly valve, production standard: national standard GB / CB, Japanese standard JIS, American standard ANSI, German standard DIN, nominal pressure: 5K, 10K, 16K, PN, 6PN1, 0PN16, ANSI150, LB300LB, nominal pass Diameter DN50-DN1200, valve body material: ductile iron QT450, cast steel ZG230-450, stainless steel SUS, bronze BZ, valve plate: stainless steel SUS, bronze BZ, valve seat: nitrile rubber NBR, PTFE: PTFE, three EPDM EPDM, FKM fluorine rubber.

The main technical parameters

Material of main parts

Standard related downloads: