DIN 2627 Flanges | DIN 2627 PN400 Weld Neck Flange dimensions

DIN 2627 PN400 Weld Neck Flange manufacturer in India, check dimensions and price list

Table Of Content:

DIN 2627 Flanges Specification
DIN 2627 Welding Neck Flanges Price List
Types Of DIN 2627 Flanges
Material Of DIN 2627 Weld Neck Flange
DIN 2627 PN400 Weld Neck Flange Dimensions
DIN 2628 PN250 Flanges Dimensions
DIN 2629 PN320 Flanges Dimensions
DIN 2627 Weld Neck Flange Weight Chart
DIN 2627 Flanges Advantages
Designs of Germany Standard DIN 2627
DIN 2627 WNRF Flange Seal Surface
Sealing Face Of DIN 2627 Long Weld Neck Flange
DIN 2627 LWNRF Flange Sizes Chart

Face Type Of DIN 2627 PN400 Flange
DIN 2627 PN400 Weld Neck Flange Manufacturing Process
DIN 2627 Welding Neck Flange PN400 Tolerances
Gasket For DIN 2627 : Welding Neck Flanges
Diameters Of Welding Neck Flange PN 400 DIN 2627
German Standard DIN 2627 Flanges Pressure Rating
DIN 2627 PN400 Weld Neck Flange Standard
DIN 2628 PN250 Weld Neck Flanges Bolt Dimensions
DIN 2629 PN320 Flanges Applications

DIN 2627 Flanges Specification

Specification	DIN 2627 Flanges
Production Technique	Forged/ Heat treated and machined
Schedule	SCH 5S, SCH 10, SCH 40, SCH 80, SCH 120, SCH 160, SCH 180 To XXS
Manufacturer Length	NPS 1⁄₂" To NPS 48”
Face Type	RTJ/ FF/ RF/ lap joint/ Male & Female / Tongue & Groove.
Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
Manufacturer of	Forged/ Threaded/ Screwed / Plate
Manufacturer Pressure Class	Class 150 (lb) up to 24" Class 300 (lb) up to 20" Class 600 (lb) up to 20" Class 900 (lb) up to 16" Class 1500 (lb) up to 10" Class 2500 (lb) up to 8"
Flanges Test	Hydrostatic testing machine/ UI trasonic flaw detector/ X-ray detector/ Direct-reading Spectrograph/ Magnetic particle detector
Flanges Equipment	Pushing Machine/ electric bevelling machine/ Press machine/ Bending machine/ Sand-blasting machine etc
Coating	Anti-rust Paint/ Zinc Plated/ Oil Black Paint/ Yellow Transparent/ Cold and Hot Dip Galvanized
Application	Bitumen upgraders Heavy oil refineries. Nuclear power (mostly seamless). Petrochemicals and acids.
Forging Methods	Casting/ Forging/ Rolling/ Cutting
Supporting Material	Gasket/ Ring Joint/ Flanges Bolts

Purchasing EN 1092-1/B DIN 2627 Welding Neck Flanges from the manufacturer directly saves 15% costing

DIN 2627 Welding Neck Flanges Price List

Nominal Diameter	Pitch Circle Diameter In mm	Thread holes	Standard	Pressure	Price In INR (India) Per Piece
DN 20	75	4 x 14 mm Ø	DIN 2627	PN 400	560.00
DN 25	85	4 x 14 mm Ø	-	-	958.00
DN 32	100	4 x 18 mm Ø	-	-	1365.00
DN 40	110	4 x 18 mm Ø	-	-	1689.00
DN 50	125	4 x 18 mm Ø	PN400	DIN 2627	2190.00

Germany standard DIN 2627 available in PN400 pressure class and have quality similar qualities as in United States, DIN 2627 WNRF Flange supplier in India offer stamping, marking & MTR

Types Of DIN 2627 Flanges

DIN 2627 Pipe Flange

DIN 2627 Forging Flange

DIN 2627 Welding Neck Flanges

DIN 2627 Weld Neck Flange

DIN 2627 WNRF Flange

DIN 2627 Long Weld Neck Flange

DIN 2627 LWNRF Flange

DIN 2627 PN400 Flange

DIN 2627 PN400 Weld Neck Flange

DIN 2627 Welding Neck Flange PN400

DIN 2628 PN250 Weld Neck Flange

Welding Neck Flange PN 400 DIN 2627

German Standard DIN 2627 Flange

DIN 2629 PN320 WN Flange

DIN 2627 PN400 Welding Neck Flange

DIN 2628 PN250 Flange

DIN 2629 PN320 Flange

DIN 2627 Forged Flange

Concentric/ Smooth/ Spiral serrated finish DIN 2627 Long Weld Neck Flange Material manufacturer in India

Material Of DIN 2627 Weld Neck Flange

Stainless Steel	ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8/ CF3/ CF8M/ CF3M/ DIN 1.4301/ DIN 1.4306/ DIN 1.4401/ DIN 1.4404/ DIN 1.4308/ DIN 1.4408/ DIN 1.4306/ DIN 1.4409
Alloy Steel	ASTM A182 / ASME SA182 F5/ F9/ F11/ F12/ F22/ F91
Brass	3602 / 2604 / H59 / H62 / etc.
Inconel	ASTM B564 / ASME SB564, Inconel 600/ 601/ 625/ 718/ 783/ 690/ x750
Carbon Steel	ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Titanium	ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2/ Titanium Gr. 4/ Titanium Gr. 5/ Titanium Gr. 7 ASTM R50250/GR.1 \| R50400/GR.2 \| R50550/GR.3 \| R50700/GR.4 \| GR.6 \|R52400/GR.7 \| R53400/GR.12 \| R56320/GR.9 \|R56400/GR.5
Hastelloy	ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276)/ C22 (UNS N06022)/ C4/ C2000/ B2/ B3/ X Flange
Monel	ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400)/ Monel 500 (UNS No. N05500)
Copper	T1, T2, C10100/ C10200/ C10300/ C10400/ C10500/ C10700/ C10800/ C10910/C10920/ TP1/ TP2/ C10930/ C11000/ C11300/ C11400/ C11500/ C11600/ C12000/C12200/ C12300/ TU1/ TU2/ C12500/ C14200/ C14420/ C14500/ C14510/ C14520/ C14530/ C17200/ C19200/ C21000/ C23000/ C26000/ C27000/ C27400/ C28000/ C33000/ C33200/ C37000/ C44300/ C44400/ C44500/ C60800/ C63020/ C68700/ C70400/ C70600/ C70620/ C71000/ C71500/ C71520/ C71640 etc
Copper Nickel	ASTM / ASME SB 61 / 62 / 151 / 152/ Copper Nickel 90/10 (C70600 )/ Cupro Nickel 70/30 (C71500)/ UNS C71640
Alloy 20	ASTM B462 / ASME SB462/ Carpenter® 20 Alloy/ Alloy 20Cb-3
Aluminium	5052 /6061/ 6063 / 2017 / 7075 / etc.
Nickel	ASTM B564 / ASME SB564, Nickel 200/ Nickel 201/ Nickel 205/ Nickel 205LC
Duplex	S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex	S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Incoloy	ASTM B564 / ASME SB564, Incoloy 800/ 800H/ 800HT (UNS N08800)/ 825 (UNS N08825)/ 925 Flange
254 Smo	ASTM A182 / ASME SA182, SMO 254/6Mo/ UNS S31254/ DIN 1.4547
Nimonic	Nimonic 75/ Nimonic 80A/ Nimonic 90
Other material	Tin bronze/ Alumunum bronze/ Lead bronze

DIN 2627 PN400 Weld Neck Flange Dimensions

NPS	Diameter at weld Bevel	Flange Diameter	Thickness of DIN 2627 Flange	Diameter of Bolt Circle	Length Of Through Hub	Diameter of Hub	Wall Thickness	Radius of Hub	Straight Portion	Diameter of R/F	Thickness of R/F	Number of	Diameter of Bolt Holes	-
(DN)	(D1)	(D)	(B)	(K)	(H1)	(D3)	(S)	(R)	(H2)	(D4)	(F)	(holes)	(D2)	(Kilogram)
10	17.20	125	28	85	65	48	3.60	4	8	40	2	4	18	2.50
15	26.90	145	30	100	68	56	5.00	4	8	45	2	4	22	3.57
25	42.40	180	38	130	90	82	7.10	4	10	68	2	4	26	7.35
40	60.30	220	48	165	110	106	10.00	6	12	88	3	4	30	13.93
50	76.10	235	52	180	120	120	12.50	6	15	102	3	8	30	16.50
65	101.60	290	64	225	135	158	16.00	6	18	122	3	8	33	31.33
80	114.30	305	68	240	150	174	17.50	8	20	138	3	8	33	37.99
100	139.70	370	80	295	175	215	22.20	8	25	162	3	8	39	66.77
125	193.70	415	92	340	200	258	30.00	8	30	188	3	12	39	94.73
150	219.10	475	105	390	225	302	35.00	10	35	218	3	12	42	144.85
200	273.00	585	130	490	280	388	40.00	10	40	285	3	16	48	269.50

DIN 2628 PN250 Flanges Dimensions

NPS	Diameter at weld Bevel	DIN 2628 Flange Diameter	Thickness of DIN 2628 Flange	Diameter of Bolt Circle	Length Through Hub	Diameter of Hub	Wall Thickness	Radius of Hub	Straight Portion	Diameter of R/F	Thickness of R/F	Number of	Diameter of Bolt Holes	-
(DN)	(D1)	(D)	(B)	(K)	(H1)	(D3)	(S)	(R)	(H2)	(D4)	(F)	(holes)	(D2)	(Kilogram)
10	17.2	125	24	85	58	44	2.6	4	6	40	2	4	18	2.09
15	21.3	130	26	90	60	48	2.6	4	6	45	2	4	18	2.47
25	33.7	150	28	105	65	60	3.6	4	8	68	2	4	22	3.53
40	48.3	185	34	135	80	84	5	6	10	88	3	4	26	6.58
50	60.3	200	38	150	85	95	6.3	6	10	102	3	8	26	8.09
65	76.1	230	42	180	95	124	8	6	12	122	3	8	26	12.59
80	101.6	255	46	200	102	136	11	8	12	138	3	8	30	16.32
100	127	300	54	235	120	164	14.2	8	14	162	3	8	33	27.07
125	152.4	340	60	275	140	200	16	8	16	188	3	12	33	38.79
150	177.8	390	68	320	160	240	17.5	10	18	218	3	12	36	59.05
200	244.5	485	82	400	190	305	25	10	25	285	3	12	42	109.45
250	298.5	585	100	490	215	385	32	12	30	345	3	16	48	189.94

DIN 2629 PN320 Flanges Dimensions

NPS	Diameter at weld Bevel	DIN 2629 Flange Diameter	Thickness of DIN 2629 Flange	Diameter of Bolt Circle	Length Through Hub	Diameter of Hub	Wall Thickness	Radius of Hub	Straight Portion	Diameter of R/F	Thickness of R/F	Number of	Diameter of Bolt Holes	-
(DN)	(D1)	(D)	(B)	(K)	(H1)	(D3)	(S)	(R)	(H2)	(D4)	(F)	(holes)	(D2)	(Kilogram)
10	17.2	125	24	85	58	44	2.6	4	6	40	2	4	18	2.09
15	21.3	130	26	90	60	48	3.2	4	6	45	2	4	18	2.49
25	33.7	160	34	115	78	68	5	4	8	68	2	4	22	5.11
40	48.3	195	38	145	88	92	6.3	6	10	88	3	4	26	8.47
50	63.5	210	42	160	100	106	8	6	10	102	3	8	26	10.52
65	88.9	255	51	200	120	138	11	6	12	122	3	8	30	19.26
80	101.6	275	55	220	130	156	12.5	8	14	138	3	8	30	24.81
100	133	335	65	265	145	186	16	8	16	162	3	8	36	42.18
125	168.3	380	75	310	175	230	20	8	20	188	3	12	36	63.30
150	193.7	425	84	350	195	265	25	10	25	218	3	12	36	91.04
175	219.1	485	95	400	215	308	28	10	28	260	3	12	42	135.46
200	244.5	525	103	440	235	345	30	10	30	285	3	16	42	170.94
250	323.9	640	125	540	300	428	40	12	40	345	3	16	52	311.99

DIN 2627 Weld Neck Flange Weight Chart

Normal Size Of Steel Pipe In Inches	Size In Millimeter	WNRF Flange Outer Daimeter (O.D.) In (MM)	WNRF Flange Wall Thickness Of (D) In M)	(DIN 2627 DIN 2627 Welding Neck Flange)
1/2	15	88.9	11.2	0.5
3/4	20	98.6	0.6	0.7
1	25	108	14.2	1
1 1/4	32	117.3	15.7	1.3
1 1/2	40	127	17.5	1.7
2	50	152.4	19.1	2.6
2 1/2	65	177.8	22.4	4.1
3	80	190.5	23.9	4.9
3 1/2	90	215.9	23.9	6.1
4	100	228.6	23.9	6.8
5	125	254	23.9	8.6
6	150	279.4	25.4	10.6
8	200	342.9	28.4	17.6
10	250	406.4	30.2	24
12	300	482.6	31.8	36.5
14	350	533.4	35.1	48.4
16	400	596.9	36.6	60.6
18	450	635	39.6	68.3
20	500	698.5	42.9	84.5

DIN 2627 Flanges Advantages

Designs Of Germany Standard DIN 2627

A wide variety of din 2627 flange designs are available. They are available in various sizes and shapes. Some of the popular designs are as follows:

DIN 2627 WNRF Flange Seal Surface

Sealing Face Of DIN 2627 Long Weld Neck Flange

DIN 2627 LWNRF Flange Sizes Chart

Normal Pipe Size	DN
1/2	15
3/4	20
1	25
1 1/4	32
1 1/2	40
2	50
2 1/2	65
3	80
4	100

Female, RJ, RTJ, Tongue, Raised, Flat, Male, Groove Face DIN 2627 LWNRF Flange manufacturer in India

Face Type Of DIN 2627 PN400 Flange

Type A: Flat Face (FF)
Type B: Raised Face (RF)
Type C: Tongue Face (TF)
Type D: Grooved Face (GF)
1Type E: Spigo
Type F: Recess
Type G: Ring Recess
Type H: O-Ring Groove

DIN 2627 PN400 Weld Neck Flange Manufacturing Process

Raw Material

Raw Materia
Materia Dimension And Visual
Materia Quantity

Inspection

Chemical And Mechanical Analysis
Analysis Of Preservation Certificate

Cutting

Cut Surface
Marking
Weight Measuring

Forging Flange

Grade Of Material
Control Flange Temperature

Heat Treatment

Flange Solution Treatment
Flanges Mechanical Test
Normalizing

Forging Rolling Of Flange

Check Dimension
Check Marking
Check Weight

Final Inspection Of Pipe Flange

Test Of Visual
Test Of Nondestructive

Rust Prevention

View Preserve
Marking
Heat Number

Packaging

Specification Of Packing
Inspection Of Packing
Delivery Time And Day

DIN 2627 Welding Neck Flange PN400 Tolerances

1) Tolerance of O.D (outside diameter):

for O.D < 200 millimeter , ±1.0 millimeter (faced) while ±2.0 millimeter (not faced).
for 200 millimeter < O.D < 300 millimeter , ±1.5 millimeter (faced) while ±2.0 millimeter (not faced).
for 300 millimeter < O.D < 400 millimeter , ±2.0 millimeter (faced) while ±3.0 millimeter (not faced).
for O.D < 400 millimeter , ±2.0 millimeter (faced) while ±5.0 millimeter (not faced).

2) Tolerance of I.D (inside bore diameter):

for I.D < 100 (mm), ±0.5 (mm)(other types) while -1.0 (mm)(weld neck types).
for 100 (mm) < I.D < 400 (mm), +1.0 (mm)(other types) while -1.5 (mm)(weld neck types).
for I.D > 400 (mm), +1.5 (mm)(other types) while -2.0 (mm)(weld neck types).

3) Tolerance of flange (t) (thickness):

for t < 10 millimeter , ±0.5 millimeter (both sides) while ±1.0 millimeter (one side).
for 10 millimeter < t < 20 millimeter , ±0.8 millimeter (both sides) while ±1.3 millimeter (one side).
for 20 millimeter < t < 30 millimeter , ±1.0 millimeter (both sides) while ±1.5 millimeter (one side).
for 30 millimeter < t < 50 millimeter , ±1.0 millimeter (both sides) while ±1.5 millimeter (one side).
for W.T < 50 millimeter , ±1.5 millimeter (both sides) while ±2.0 millimeter (one side).

4) Tolerance of flange overall H (height):

for H < 80 (mm), ±0.5 (mm).
for 80 (mm) < H < 250 (mm), ±2.0 (mm).
for H < 250 (mm), ±3.0 (mm).

5) Tolerance of diameter of G (raised face):

for g < 80 (mm), -1.0 (mm).
for 80 (mm) < g < 300 (mm), -2.0 (mm).
for g < 300 (mm), -3.0 (mm).

Gasket For DIN 2627 : Welding Neck Flanges

(Normal Size Of Steel Pipes) In Inch	(I.D.) Inner Daimeter Gasket	(O.D.) Outer Daimeter Gasket
(Normal Size Of Steel Pipes) In Inch	(I.D.) Inner Daimeter Gasket	Class 150#/ LB	Class 300#/ LB	Class 400#/ LB	Class 600#/ LB	Class 900#/ LB
1/2	0.84	1.875	2.125	2.125	2.125	2.50
3/4	1.06	2.25	2.625	2.625	2.625	2.75
1	1.31	2.625	2.875	2.875	2.875	3.125
1 1/4	1.66	3	3.25	3.25	3.25	3.50
1 1/2	1.91	3.375	3.75	3.75	3.75	3.875
2	2.38	4.125	4.375	4.375	4.375	5.625
2 1/2	2.88	4.875	5.125	5.125	5.125	6.50
3	3.50	5.375	5.875	5.875	5.875	6.625
4	4.50	6.875	7.125	7.00	7.625	8.125
5	5.56	7.75	8.50	8.375	9.50	9.75
6	6.62	8.75	9.875	9.75	10.50	11.375
8	8.62	11	12.125	12.00	12.625	14.125
10	10.75	13.375	14.25	14.125	15.75	17.125
12	12.75	16.125	16.625	16.50	18.00	19.625

Diameters Of Welding Neck Flange PN 400 DIN 2627

Nominal Pipe Diameter	Pressure Rating In (PN)
Size Of **Nominal BSP Pipe	PN 6	PN 10	PN 16	PN 25	PN 40
DN 10	75	90	90	90	90	O.D.
3/8"	50	60	60	60	60	PCD (B.C.)
	4 x 11	4 x 14	4 x 14	4 x 14	4 x 14	# of holes x diameter of holes
DN 15	80	95	95	95	95	O.D.
1/2"	55	65	65	65	65	PCD (B.C.)
	4 x 11	4 x 14	4 x 14	4 x 14	4 x 14	# of holes x diameter of holes
DN 20	90	105	105	105	105	O.D.
3/4"	65	75	75	75	75	PCD (b.c.)
	4 x 11	4 x 14	4 x 14	4 x 14	4 x 14	# of holes x diameter of holes
DN 25	100	115	115	115	115	O.D.
1"	75	85	85	85	85	PCD (b.c.)
	4 x 11	4 x 14	4 x 14	4 x 14	4 x 14	# of holes x diameter of holes
DN 32	120	140	140	140	140	O.D.
1 1/4"	90	100	100	100	100	PCD (b.c.)
	4 x 14	4 x 18	4 x 18	4 x 18	4 x 18	# of holes x diameter of holes
DN 40	130	150	150	150	150	O.D.
1 1/2"	100	110	110	110	110	PCD (b.c.)
	4 x 14	4 x 18	4 x 18	4 x 18	4 x 18	# of holes x diameter of holes
DN 50	140	165	165	165	165	O.D.
2"	110	125	125	125	125	PCD (b.c.)
	4 x 14	4 x 18	4 x 18	4 x 18	4 x 18	# of holes x diameter of holes
DN 65	160	185	185	185	185	O.D.
2 1/2"	130	145	145	145	145	PCD (b.c.)
	4 x 14	4 x 18	4 x 18	8 x 18	8 x 18	# of holes x diameter of holes
DN 80	190	200	200	200	200	O.D.
3"	150	160	160	160	160	PCD (b.c.)
	4 x 18	8 x 18	8 x 18	8 x 18	8 x 18	# of holes x diameter of holes
DN 100	210	220	220	235	235	O.D.
4"	170	180	180	190	190	PCD (b.c.)
	4 x 18	8 x 18	8 x 18	8 x 22	8 x 22	# of holes x diameter of holes
DN 125	240	250	250	270	270	O.D.
5"	200	210	210	220	220	PCD (b.c.)
	8 x 18	8 x 18	8 x 18	8 x 26	8 x 26	# of holes x diameter of holes
DN 150	265	285	285	300	300	O.D.
6"	225	240	240	250	250	PCD (b.c.)
	8 x 18	8 x 22	8 x 22	8 x 26	8 x 26	# of holes x diameter of holes
DN 175		315	315	330	350	O.D.
7"		270	270	280	295	PCD (b.c.)
		8 x 22	8 x 22	12 x 26	12 x 30	# of holes x diameter of holes
DN 200	320	340	340	360	375	O.D.
8"	280	295	295	310	320	PCD (b.c.)
	8 x 18	8 x 22	12 x 22	12 x 26	12 x 30	# of holes x diameter of holes
DN 250	375	395	405	425	450	O.D.
10"	335	350	355	370	385	PCD (b.c.)
	12 x 18	12 x 22	12 x 26	12 x 30	12 x 33	# of holes x diameter of holes
DN 300	440	445	460	485	515	O.D.
12"	395	400	410	430	450	PCD (b.c.)
	12 x 22	12 x 22	12 x 26	16 x 30	16 x 33	# of holes x diameter of holes
DN 350	490	505	520	555	580	O.D.
14"	445	460	470	490	510	PCD (b.c.)
	12 x 22	16 x 22	16 x 26	16 x 33	16 x 36	# of holes x diameter of holes
DN 400	540	565	580	620	660	O.D.
16"	495	515	525	550	585	PCD (b.c.)
	16 x 22	16 x 26	16 x 30	16 x 36	16 x 39	# of holes x diameter of holes
DN 500	645	670	715	730	755	O.D.
20"	600	620	650	660	670	PCD (b.c.)
	20 x 22	20 x 26	20 x 33	20 x 36	20 x 42	# of holes x diameter of holes
DN 600	755	780	840	845		O.D.
24"	705	725	770	770		PCD (b.c.)
	20 x 24	20 x 27	20 x 33	20 x 36		# of holes x diameter of holes

German Standard DIN 2627 Flanges Pressure Rating

Temperature In (°C)	Class 150	Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500
-29 TO 38	15.9	41.4	55.2	82.7	124.1	206.8	344.7
50	15.3	40	53.4	80	120.1	200.1	333.5
100	13.3	34.8	46.4	69.6	104.4	173.9	289.9
150	12	31.4	41.9	62.8	94.2	157	261.6
200	11.2	29.2	38.9	58.3	87.5	145.8	243
250	10.5	27.5	36.6	54.9	82.4	137.3	228.9
300	10	26.1	34.8	52.1	78.2	130.3	217.2
325	9.3	25.5	34	51	76.4	127.4	212.3
350	8.4	25.1	33.4	50.1	75.2	125.4	208.9
375	7.4	24.8	33	49.5	74.3	123.8	206.3
400	6.5	24.3	32.4	48.6	72.9	121.5	202.5
425	5.5	23.9	31.8	47.7	71.6	119.3	198.8
450	4.6	23.4	31.2	46.8	70.2	117.1	195.1

DIN 2627 PN400 Weld Neck Flange Standard

DIN 2628 PN250 Weld Neck Flanges Bolt Dimensions

Size in (Inches)	Size in (Millimeter)	Number of Bolts	Bolt Size Of UNC	Length Of RF Stud	Size Of ISO Stud	Length Of Machine Bolts
Class 150 Flange
1/2	15	4	1/2	55	M14	50
3/4	20	4	1/2	65	M14	50
1	25	4	1/2	65	M14	55
1 1/4	32	4	1/2	70	M14	55
1 1/2	40	4	1/2	70	M14	65
2	50	4	5/8	85	M16	70
2 1/2	65	4	5/8	90	M16	75
3	80	4	5/8	90	M16	75
3 1/2	90	8	5/8	90	M16	75
4	100	8	5/8	90	M16	75
5	125	8	3/4	95	M20	85
6	150	8	3/4	100	M20	85
8	200	8	3/4	110	M20	90
10	250	12	7/8	115	M24	100
12	300	12	7/8	120	M24	100
14	350	12	1	135	M27	115
16	400	16	1	135	M27	115
18	450	16	1 1/8	145	M30	125
20	500	20	1 1/8	160	M30	140
24	600	20	1 1/4	170	M33	150

DIN 2629 PN320 Flanges Applications

Specialty Chemicals
Power Generation
Condensers
Chemical Equipment
Gas Processing
Pulp and Paper Industry

Sea Water Equipment
Pharmaceutical Equipment
Off-Shore Oil Drilling Companies
Petrochemicals
Heat Exchangers
Pharmaceuticals