DIN 2527 Pipe And Fittings

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DN Size

100

System of Measurement

Metric

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Number of Bolt Holes

Bolt Circle Diameter

Flange OD

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Flanged Connection Surface

Bolt Hole Diameter

For Use With

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Fitting Finished Material

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For Fitting Schedule

Export Control Classification Number (ECCN)

EAR99

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12 Products

Low-Pressure Iron and Steel Unthreaded Pipe Flanges

Bolt two flat-surface flanges or two raised-surface flanges of the same size together with a gasket (sold separately) to create an access point in a pipe line. Flanges are for use with low-pressure applications in noncorrosive environments.

Flanges


Butt Weld: Front	Butt Weld: Raised Surface on Back	Slip-On Weld: Front	Slip-On Weld: Raised Surface on Back

Butt-Weld Fitting Connection—Butt-weld flanges are also known as weld-neck flanges; the flange neck has a beveled end that, when flush to pipe, creates a trough for a strong weld.

Slip-on-Weld Fitting Connection—Slip-on weld flanges have no internal stop; slide a pipe through the flange and weld on both sides.

	Pipe Size					Bolt Hole
	(A)	(B)	Flanged Connection Surface (B)	Flange OD, mm	For Bolt Dia., mm	Dia., mm	No. Of	Bolt Circle Dia., mm	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
Butt Weld



		1	1	Raised	115	12	14	4	85	Steel	230 psi @ 72° F	180 psi @ 300° F	1132T11	000000


		2	2	Raised	165	16	18	4	125	Steel	230 psi @ 72° F	180 psi @ 300° F	1132T12	00000
		3	3	Raised	200	16	18	8	160	Steel	230 psi @ 72° F	180 psi @ 300° F	1132T13	00000
		4	4	Raised	220	16	18	8	180	Steel	230 psi @ 72° F	180 psi @ 300° F	1132T14	00000


		Slip-On Weld Female



				1	1	Raised	115	12	14	4	85	Steel	230 psi @ 72° F	180 psi @ 300° F	1132T19	00000


				2	2	Raised	165	16	18	4	125	Steel	230 psi @ 72° F	180 psi @ 300° F	1132T21	00000
				3	3	Raised	200	16	18	8	160	Steel	230 psi @ 72° F	180 psi @ 300° F	1132T22	00000
				4	4	Raised	220	16	18	8	180	Steel	230 psi @ 72° F	180 psi @ 300° F	1132T23	00000

Blind Flanges


Front	Raised Surface on Back

					Bolt Hole
	Pipe Size	Flanged Connection Surface	Flange OD, mm	For Bolt Dia., mm	Dia., mm	No. Of	Bolt Circle Dia., mm	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
Flanged



		1	Raised	115	12	14	4	85	Steel	230 psi @ 72° F	180 psi @ 300° F	1132T15	000000


		2	Raised	165	16	18	4	125	Steel	230 psi @ 72° F	180 psi @ 300° F	1132T16	00000
		3	Raised	200	16	18	8	160	Steel	230 psi @ 72° F	180 psi @ 300° F	1132T17	00000
		4	Raised	220	16	18	8	180	Steel	230 psi @ 72° F	180 psi @ 300° F	1132T18	00000