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Who can tell me what "DN" and "PN" mean in flanges, and what does PN16 stand for?
DN----- through the flange -- such as pressure DN15. with Phi 18 DN25. with 32 DN30. diameter pipe pipe with pipe ----------PN----- Phi 38 maximum value, the unit is "MPa, 1 MPa and cm - equivalent to 10KgPN16 refers to the pipe and the flange matched bearing pressure approximately 12 MPa. The equivalent of 120Kg - and cm
Flange, flange, blind plate, the name of such a table, what exactly contains what I do not understand.
It includes flange plate, clamp, gasket, connecting bolt, nut and joint.
Do I need flanges for rubber joints?
In this case, 4 flanges are required for a productGongyi Kin Kun water supply equipment factory produces rubber soft joints all year round
Flange German standard DIN, pleaseND16 what does that ND mean?It's ND in German standard DIN, not nominal diameter DN
Should mark "DN", is the nominal diameter of the code.Is the nominal diameter size after the roundness of the numerical repair to the mantissa, in order to simplify the mark.Germany, China ISO, nominal diameter are DN.
Does the six angle flange bolt and the six angle bolt have the same meaning?
Not the same meaning. The six head bolts are hexagonal in shape, and there is a gasket like structure between the head of the flange bolt and the thread!
What's the difference between cast iron flanges and steel flanges?
Not much difference. We usually have carbon steel instead of cast iron
Flange specification PL20 (B)
This is American Standard flange welding plate flange American Standard 20 pounds
Which flange is the front pipe case flange and the cylinder flange?
A cylinder flange is a flange that is connected with a shell on the shell side, and no flange is used on the ordinary heat exchanger.