Nominell str. DN - ANSI B 16.5, MSS SP 44, API Std. 6A								Ring nr
150#	300# 400# 600#	900#	1 500#	2 000#	2 500#	3 000#	5 000#
	1/2"							R11
		1/2"	1/2"					R12
	3/4"							R13
		3/4"	3/4"					R14
1"								R15
	1"	1"	1"		3/4"			R16
1 1/4"								R17
	1 1/4"	1 1/4"	1 1/4"		1"			R18
1 1/2"								R19
	1 1/2"	1 1/2"	1 1/2"	1 1/2"		1 1/2"	1 1/2"	R20
					1 1/4"			R21
2"								R22
	2"			2"	1 1/2"			R23
		2"	2"			2"	2"	R24
2 1/2"								R25
	2 1/2"			2 1/2"	2"			R26
		2 1/2"	21/2"			2 1/2"	2 1/2"	R27
					2 1/2"			R28
3"								R29
	1)							R30
	1) 3"	3"		3"		3"		R31
					3"			R32
3 1/2"								R33
	3 1/2"							R34
			3"				3"	R35
4"								R36
	4"	4"		4"		4"		R37
					4"			R38
			4"				4"	R39
5"								R40
	5"	5"		5"		5"		R41
					5"			R42
6"								R43
			5"				5"	R44
	6"	6"		6"		6"		R45
			6"				6"	R46
					6"			R47
8"								R48
	8"	8"		8"		8"		R49
			8"				8"	R50
					8"			R51
10"								R52
	10"	10"		10"		10"		R53
			10"					R54
					10"			R55
12"								R56
	12"	12"		12"		12"		R57
			12"					R58
14"								R59
					12"			R60
	14"							R61
		14"						R62
16"								R64
	16"			16"				R65
		16"				16"		R66
			16"					R67
18"								R68
	18"			18"				R69
		18"				18"		R70
			18"					R71
20"								R72
	20"			20"				R73
		20"				20"		R74
			20"					R75
24"								R76
	24"							R77
		24"						R78
			24"					R79
(22")								R80
	(22")							R81
	26"							R93
	28"							R94
	30"							R95
	32"							R96
	34"							R97
	36"							R98
		26"						R100
		28"						R101
		30"						R102
		32"						R103
		34"						R104
		36"						R105