Fluorine lined check valve American standard

    check valve The more common standards are the national standard and the American standard. The national standard is naturally the domestic standard, while the American standard is the American standard. I believe everyone has a deep understanding of the national standard for fluorine lined check valves, but they may not know much about the American standard. Today, I will introduce the American standard for fluorine lined check valves to you.
The design and manufacturing standards for American standard fluorine lined check valves generally adopt API standards. Of course, API standards also have many classifications, and the scope of application varies depending on the standards used.
The fluorine lined American standard check valve adopts the API594-2004 manufacturing standard, which includes the design, materials, structural length, pressure temperature rating, inspection, and testing requirements for two types of check valves.

A-type fluorine lined check valve: short structural length, can be: clamp type, lug type or double flange type; Single board or double board; Gray cast iron, ductile iron, steel, nickel alloy or other alloys can be installed between 125 pound and 150 pound ductile iron flanges in accordance with ASME B16.1, between 150-2500 pound steel flanges in accordance with ASME B16.5, between 150-600 pound steel pipe flanges in accordance with MSS SP-44, or between carbon steel flanges in accordance with ASME B16.47.
B-type fluorine lined check valve is a long structural length, which can be flange type or butt welded type; Steel, nickel alloy, or other alloys can be installed between 150 to 2500 pound steel flanges specified in ASME B16.5 or welded to industrial piping systems.
The American standard fluorine lined check valve adopts the manufacturing standard API602-2005 (ISO15761) and is mainly suitable for the petroleum and natural gas industries. The nominal sizes are: 8, 10, 15, 20, 25, 32, 40, 50, 65, 80, 100; The applicable pound scales are: 150, 300, 600, 800, and 1500 pound scales; The specific regulations are as follows: socket welding or threaded end: 8 ≤ DN ≤ 65, pressure of 800 and 1500LB; flange end or butt welding end: 15 ≤ DN ≤ 100; 150 ≤ pressure ≤ 1500, excluding 800 pound flange ends.