Stainless Steel Lap Joint Flange manufacturer India

Looking for Lap Joint Flange manufacturers in India? We produce Loose Flange in AS, Carbon Steel, SS, Inconel, Hastelloy, Nickel, Titanium, Copper, and Aluminium Alloy

What Is Lap Joint Flange?
A Lap Joint Flange can be described as a two component assembly, which comes with a stub end and a ring flange placed on top of it. The stub end is basically buttwelded to the pipe, and the flange ring is rotated so that it can be perfectly aligned with the mating flange. They are mostly used for flanges that are hard to adjust or large. They are used in similar sizes and pressure classes as that of the weld neck flange.
The cost and the application environment where the Lap Joint Flange can be efficiently used depend on the material grade. They are available in customizable dimensions, which makes it easy to integrate them with any existing pipe or piping components. However, it is essential to remember that the biggest limitation of Lap Joint Flange is in its pressure ratings. They undoubtedly bear greater pressure than the slip-on flanges, but they are not perfect to be used in high pressure applications.
One of the best things about Lap Joint Flange is that the flange can be realigned and rotated freely. This helps in ensuring proper connection and it also ensures that the maintenance process is carried faster. As it does not require fillet weld for joining with the pipe, this reduces the installation time and helps in saving money. They can be used in highly corrosive or erossive processes as its parts can be replaced easily which ensures cost-effective operation.

Is A Stainless Steel Lap Joint Flange is Raised Face?
The Lap Joint Flange comes with a unique design due to which it always has a flat face that is accompanied by a smooth surface. But when accompanied by stub ends, the resultant sealing would have a raised face. It is because the stub end’s sealing face is above the bolting surface of the flange. Thus, the Stainless Steel Lap Joint Flange is Raised Face.

How To Install Carbon Steel Lap Joint Flange
The installation process of the Carbon Steel Lap Joint Flange is fairly simple. All you need is a few screws and you can install the flange to the pipe. The bolts are placed through the holes present in the flange and then they are tightened clockwise to improve their grip.

What Are The Advantages And Disadvantages Of A Lap Joint Pipe Flanges?
The Lap Joint Pipe Flanges come with a two-piece configuration, which has its own benefits. The stub end can be made from expensive material grade while the backing flange can be made from common carbon steel. This makes the flanges very cost-effective. Also, as the flange is not welded to the pipe, it can be rotated to be aligned and bolt the holes. This makes assembling and disassembling easier. Thus, they are ideal for piping operations that require frequent disassembling for inspections or maintenance.
There are also some Disadvantages Of Lap Joint Pipe Flanges, due to the design, contaminants might get collected easily, which could result in crevice corrosion. Also the longitudinal stress might accumulate and exceed the basic stress limit of the given standard. Thus, they are always used for mild services. Also, sometimes the material grade of the stub end might be different from that of the flange to save some cost, but this might cause galvanic corrosion in some cases.

Loose Flange Vs Lap Joint Flange
The loose flange is a synonym of the lap joint flange, and hence there is no difference between them.

Stainless Steel Lap Joint Flange

European Directive 2014/68/eu certified Carbon Steel ASTM A105 Vanstone Flange manufacturers in India offers widest selection of A182 F316 Stainless Steel Raised Face Lap Joint Flange and A516 Gr.70 LJ Flange in Mumbai

Dimensions	ASME B16.5, ASME B16.47 Series A & B, MSS SP44
Size	1/2" to 48"
Class	300 LBS, 150 LBS, 900 LBS, 600 LBS, 1500 LBS, 2500 LBS
JIS	5K, 16 K 10 K, 20 K, 40 K, 30 K, 63 K
UNI	6Bar 16Bar 10Bar 25Bar 40Bar
Coating/Surface Treatment By Manufacturer	Antirust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
EN	6Bar 25Bar 10Bar 40Bar 16Bar
BS	BS4504 , BS4504, BS1560, BS10
Flanges Face Type Provided By Manufacturer	RF (Raised Face), RTJ (Ring Type Joint)
Value Added Services	CNC Machining, Customised Flanges
Making Methods Provided By Manufacturer	Casting And Forging Rolling And Cutting
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
Outer diameters	1/2” to 24”
Standards Provided By Manufacturer	EN-1092, DIN, API7S-43, API605, B16.48, ISO70051, MSS S44, ANSI/ASME B16.5, B16.47 Series A & B, BS4504, BS 10, API7S-15, JISB2220, BS1560-3.1, ASME/ANSI B16.5/16.36/16.47A/16.47B, EN1092

Stainless Steel	ASTM A182 Gr. 304, 304L, 309, 316, 310, 316L, 317L, 321, 347, 904L
Duplex Steel	ASTM A 182, ASME SA 182 UNS NO S31803, S32205. Werkstoff No. 1.4462
Carbon Steel	High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80), A181 LF2, A105N, ASTM A350 LF2 / ASME SA350, ASTM/ASME A/SA105 A/SA105N & ASTM A105 / ASME SA105, P235GH, P245GH, P250GH, RST37.2, C22.8, S235JR, ST37, A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706
Copper Nickel	Cupro Nickel 70/30 (C71500), Copper Nickel 90/10 (C70600 ), ASTM / ASME SB 62 / 151 / 61 / 152, UNS C71640
Nickel Alloy	ASTM / ASME SB 564 UNS 4400 (MONEL 400 ), UNS 2200 ( NICKEL 200 ), UNS 8825 INCONEL (825), UNS 2201 (NICKEL 201 ), UNS 8020 ( ALLOY 20 / 20 CB 3, UNS 6601 ( INCONEL 601 ), UNS 6625 (INCONEL 625), UNS 6600 (INCONEL 600 ), UNS 10276 ( HASTELLOY C 276 )
Alloy Steel	F11, F12, F5, F9, F22, F91
Other	Titanium, Aluminium, 254 SMO

Alloy Steel Loose Flange

Duplex LJ Flange

Super Duplex Lapped Joint Flange

Titanium Vanstone Flange

Mild Steel RFLJ Flange

Nickel Alloy LJFF Flange

Copper Raised Face Lap Joint Flange

Inconel Type A Lap Joint Flange

Hastelloy Lap Joint Backing Flange

Gi Class 600 Lap Joint Flange

ASTM A516 Gr.70 Flat Face Lap Joint Flange

ASTM A182 F316 LJFF Flange

ASTM A182 F304 Large Diameter Lap Joint Flange

ASTM A350 LF2 Lap Joint Flange Material

UNS S31803 Pn16 Lap Joint Flange

A182 F11 Lapped Joint Flange

Stainless Steel 304 Vanstone Flange

316 Stainless Steel RFLJ Flange

Galvanized Lap Joint Flange

Aluminum Lap Joint Flange

ASTM A105 Lap Joint Flange

Copper Nickel Lap Joint Flange

Ductile Iron Lap Joint Flange

Vanstone Flange Stainless Steel

Carbon Steel Lap Joint Flange

Stainless Steel Lap Joint Flange

ASME B16.5 Lap Joint Flange

ANSI 150 Lap Joint Flange

Jis 10k Lap Joint Flange

Lap Joint Flange N06022

Stainless Steel Lap Joint Flange Price Per Piece in India	Lap Joint Flanges Price in INR	Loose Flanges Price in UAE Dirham	Vanstone Flanges Price in USD
F316L 2 LAP JOINT 1500 FLANGES Per Piece	15,025	UAE Dirham 741.89	$201.99
FLANGE: A105N 2 LAP JOINT 300 Per Piece	2,389	UAE Dirham 117.96	$32.12
FLANGES INC.825 2 LAP JOINT 600 Per Piece	8,707	UAE Dirham 429.93	$117.05

Supply SS Lap Joint Flanges such as A182 F304 LJFF Flange & ASTM A350 LF2 RFLJ Flange with Safely Pressure Test

A lap-joint flanges is a two-part assembly that consists of a stub end with a lap-joint ring flanges placed over it. After butt welding the stub end to the pipe, the flange ring can be rotated to align with the mating flange. This flanges connection is especially useful for large or difficult-to-adjust flanges.

Normal Pipe Size	(A)	(B)
1/2	3.0	1.5
3/4	3.0	1.5
1	3.0	1.5
1-1/4	3.0	1.5
1-1/2	3.0	1.5
2	3.0	1.5
2-1/2	3.0	1.5
3	4.5	1.5
3-1/2	6.0	3.0
4	6.0	3.0
5	6.0	3.0
6	6.0	3.0
8	8.0	4.5
10	8.0	4.5
12	8.0	4.5
14	8.0	4.5
16	10.0	4.5
18	12.0	6.0
20	12.0	6.0
22	12.0	6.0
24	12.0	6.0

The most significant limitation of lap joint flanges use is pressure ratings.
Contaminants can easily collect in the crevices formed between the internal surface of the flanges bore and the external surface of the stub ends.
At the design temperature specified by ASME B31.3, longitudinal stresses caused by pressure, weight, and thermal expansion may accumulate and exceed the basic allowable stress.

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

Buy raised/ rtj/ flat face Alloy Steel Lap Joint Flange and ASTM A182 F11 Loose Flange at Unbeatable Prices in Asia

Nominal Size	Outside Diameter	Lap Radus	Weight Each
	(OD)		(lbs)
1	4.25	0.13	2
11⁄4	4.63	0.19	3
11⁄2	5	0.25	3
2	6	0.31	5
21⁄2	7	0.31	7
3	7.5	0.38	8
31⁄2	8.5	0.38	11
4	9	0.44	13
5	10	0.44	15
6	11	0.5	18
8	13.5	0.5	30
10	16	0.5	42
12	19	0.5	64
14	21	0.5	90
16	23.5	0.5	98
18	25	0.5	125
20	27.5	0.5	160
24	32	0.5	212
30**	38.75	0.5	305
36**	46	0.5	440

150 Lb Lap Joint Flange

Size in Inch	Size in mm	Lapped Radius	Outer Diameter	Lapped Thick.	Lapped ID	Lapped Thick.	Hole Size	No of Bolts	Bolt Size UNC	Machine Bolt Length	PCD	RF Stud Length	ISO Stud Size	Flanges Thick.	Weight in kg
			A	C	D	G					E			B
1/2	15	3	90	16	22.9	11.2	5/8	4	1/2	50	60.3	55	M14	30	0.8
3/4	20	3	100	16	28.2	12.7	5/8	4	1/2	50	69.9	65	M14	38	0.9
1	25	3	110	17	34.9	14.3	5/8	4	1/2	55	79.4	65	M14	49	0.9
1 1/4	32	5	115	21	43.7	15.9	5/8	4	1/2	55	88.9	70	M14	59	1.4
1 1/2	40	6	125	22	50	17.5	5/8	4	1/2	65	98.4	70	M14	65	1.4
2	50	8	150	25	62.5	19.1	3/4	4	5/8	70	120.7	85	M16	78	2.3
2 1/2	65	8	180	29	75.4	22.3	3/4	4	5/8	75	139.7	90	M16	90	3.2
3	80	10	190	30	91.4	23.9	3/4	4	5/8	75	152.4	90	M16	108	3.7
3 1/2	90	11	215	32	104.1	23.9	3/4	8	5/8	75	177.8	90	M16	122	5
4	100	11	230	33	116.8	23.9	3/4	8	5/8	75	190.5	90	M16	135	5.9
5	125	11	255	36	144.4	23.9	7/8	8	3/4	85	215.9	95	M20	164	6.8
6	150	13	280	40	171.4	25.4	7/8	8	3/4	85	241.3	100	M20	192	8.6
8	200	13	345	44	222.2	28.6	7/8	8	3/4	90	298.5	110	M20	246	13.7
10	250	13	405	49	277.4	30.2	1	12	7/8	100	362	115	M24	305	19.5
12	300	13	485	56	328.2	31.8	1	12	7/8	100	431.8	120	M24	365	29
14	350	13	535	79	360.2	35	1 1/8	12	1	115	476.3	135	M27	400	41
16	400	13	595	87	411.2	36.6	1 1/8	16	1	115	539.8	135	M27	457	54
18	450	13	635	97	462.3	39.7	1 1/4	16	1 1/8	125	577.9	145	M30	505	59
20	500	13	700	103	514.4	42.9	1 1/4	20	1 1/8	140	635	160	M30	559	75
24	600	13	815	111	616	47.9	1 3/8	20	1 1/4	150	749.3	170	M33	663	100

300 Lb Lap Joint Flange

Size in Inch	Size in mm	Flanges Thick.	Outer Diameter	Lapped Thick.	PCD	Bolt Size UNC	Lapped Radius	No of Bolts	Hole Size	Machine Bolt Length	RF Stud Length	Lapped ID	Lapped Thick.	ISO Stud Size	Weight in kg
		B	A	C	E							D	G
1/2	15	38	95	22	66.7	1/2	3	4	5/8	55	65	22.9	14.3	M14	1.2
3/4	20	48	115	25	82.6	5/8	3	4	3/4	65	75	28.2	15.9	M16	1.4
1	25	54	125	27	88.9	5/8	3	4	3/4	65	75	34.9	17.5	M16	1.4
1 1/4	32	64	135	27	98.4	5/8	5	4	3/4	70	85	43.7	19.1	M16	1.8
1 1/2	40	70	155	30	114.3	3/4	6	4	7/8	75	90	50	20.7	M20	2.7
2	50	84	165	33	127	5/8	8	8	3/4	75	90	62.5	22.3	M16	3.2
2 1/2	65	100	190	38	149.2	3/4	8	8	7/8	85	100	75.4	25.4	M20	4.6
3	80	117	210	43	168.3	3/4	10	8	7/8	90	110	91.4	28.6	M20	5.9
3 1/2	90	133	230	44	184.2	3/4	11	8	7/8	95	110	104.1	30.2	M20	7.7
4	100	146	255	48	200	3/4	11	8	7/8	95	115	116.8	31.8	M20	10
5	125	178	280	51	235	3/4	11	8	7/8	110	120	144.4	35	M20	12.7
6	150	206	320	52	269.9	3/4	13	12	7/8	110	120	171.4	36.6	M20	17.7
8	200	260	380	62	330.2	7/8	13	12	1	120	140	222.2	41.3	M24	26
10	250	321	445	95	387.4	1	13	16	1 1/8	140	160	277.4	47.7	M27	36
12	300	375	520	102	450.8	1 1/8	13	16	1 1/4	145	170	328.2	50.8	M30	52
14	350	425	585	111	514.4	1 1/8	13	20	1 1/4	160	180	360.2	54	M30	75
16	400	483	650	121	571.5	1 1/4	13	20	1 3/8	165	190	411.2	57.2	M33	86
18	450	533	710	130	628.6	1 1/4	13	24	1 3/8	170	195	462.3	60.4	M33	113
20	500	587	775	140	685.8	1 1/4	13	24	1 3/8	185	205	514.4	63.5	M33	143
24	600	702	915	153	812.8	1 1/2	13	24	1 5/8	205	230	616	69.9	M39	216

Check Duplex Steel Lapped Joint Flange and MS Loose Flange thickness & price in Mumbai

600 Lb Lap Joint Flange

Size in Inch	Size in mm	ISO Stud Size	Outer Diameter	Hole Size	Lapped Thick.	Lapped ID	Lapped Thick.	PCD	Lapped Radius	No of Bolts	Bolt Size UNC	RF Stud Length	Flanges Thick.	Weight in kg
			A		C	D	G	E					B
1/2	15	M14	95	5/8	22	22.9	14.3	66.7	3	4	1/2	75	38	1.3
3/4	20	M16	115	3/4	25	28.2	15.9	82.6	3	4	5/8	90	48	1.4
1	25	M16	125	3/4	27	34.9	17.5	88.9	3	4	5/8	90	54	1.8
1 1/4	32	M16	135	3/4	29	43.7	20.7	98.4	5	4	5/8	95	64	2.3
1 1/2	40	M20	155	7/8	32	50	22.3	114.3	6	4	3/4	110	70	3.2
2	50	M16	165	3/4	37	62.5	25.4	127	8	8	5/8	110	84	4.1
2 1/2	65	M20	190	7/8	41	75.4	28.6	149.2	8	8	3/4	120	100	5.9
3	80	M20	210	7/8	46	91.4	31.8	168.3	10	8	3/4	125	117	7.3
3 1/2	90	M24	230	1	49	104.1	35	184.2	11	8	7/8	140	133	9.6
4	100	M24	275	1	54	116.8	38.1	215.9	11	8	7/8	145	152	16.8
5	125	M27	330	1 1/8	60	144.4	44.5	266.7	11	8	1	165	189	29
6	150	M27	355	1 1/8	67	171.4	47.7	292.1	13	12	1	170	222	36
8	200	M30	420	1 1/4	76	222.2	55.6	349.2	13	12	1 1/8	190	273	52
10	250	M33	510	1 3/8	111	277.4	63.5	431.8	13	16	1 1/4	215	343	77
12	300	M33	560	1 3/8	117	328.2	66.7	489	13	20	1 1/4	220	400	91
14	350	M36	605	1 1/2	127	360.2	69.9	527	13	20	1 3/8	235	432	105
16	400	M39	685	1 5/8	140	411.2	76.2	603.2	13	20	1 1/2	255	495	150
18	450	M42	745	1 3/4	152	462.3	82.6	654	13	20	1 5/8	275	546	182
20	500	M42	815	1 3/4	165	514.4	88.9	723.9	13	24	1 5/8	285	610	232
24	600	M48	940	2	184	616	101.6	838.2	13	24	1 7/8	330	718	332

900 Lb Lap Joint Flange

Size in Inch	Size in mm	ISO Stud Size	Lapped Thick.	Outer Diameter	Flanges Thick.	Lapped ID	PCD	Lapped Thick.	Hole Size	No of Bolts	Bolt Size UNC	RF Stud Length	Lapped Radius	Weight in kg
			C	A	B	D	E	G
1/2	15	M20	32	120	38	22.9	82.6	22.3	7/8	4	3/4	110	3	1.8
3/4	20	M20	35	130	44	28.2	88.9	25.4	7/8	4	3/4	115	3	2.3
1	25	M24	41	150	52	34.9	101.6	28.6	1	4	7/8	125	3	3.6
1 1/4	32	M24	41	160	64	43.7	111.1	28.6	1	4	7/8	125	5	4.1
1 1/2	40	M27	44	180	70	50	123.8	31.8	1 1/8	4	1	140	6	5.5
2	50	M24	57	215	105	62.5	165.1	38.1	1	8	7/8	145	8	11.5
2 1/2	65	M27	64	245	124	75.4	190.5	41.3	1 1/8	8	1	160	8	16.5
3	80	M24	54	240	127	91.4	190.5	38.1	1	8	7/8	145	10	12
4	100	M30	70	290	159	116.8	235	44.5	1 1/4	8	1 1/8	170	11	24
5	125	M33	79	350	190	144.4	279.4	50.8	1 3/8	8	1 1/4	190	11	38
6	150	M30	86	380	235	171.4	317.5	55.6	1 1/4	12	1 1/8	190	13	50
8	200	M36	114	470	298	222.2	393.7	63.5	1 1/2	12	1 3/8	220	13	78
10	250	M36	127	545	368	277.4	469.9	69.9	1 1/2	16	1 3/8	235	13	112
12	300	M36	143	610	419	328.2	533.4	79.4	1 1/2	20	1 3/8	255	13	148
14	350	M39	156	640	451	360.2	558.8	85.8	1 5/8	20	1 1/2	275	13	182
16	400	M42	165	705	508	411.2	616	88.9	1 3/4	20	1 5/8	285	13	193
18	450	M48	190	785	565	462.3	685.8	101.6	2	20	1 7/8	325	13	258
20	500	M52	210	855	622	514.4	749.3	108	2 1/8	20	2	350	13	317
24	600	M64	267	1040	749	616	901.7	139.7	2 5/8	20	2 1/2	440	13	608

1500 Lb Lap Joint Flange

Size in Inch	Size in mm	ISO Stud Size	Outer Diameter	Lapped Thick.	Lapped ID	PCD	Flanges Thick.	Bolt Size UNC	No of Bolts	RF Stud Length	Lapped Thick.	Hole Size	Lapped Radius	Weight in kg
			A	C	D	E	B				G
1/2	15	M20	120	32	22.9	82.6	38	3/4	4	110	22.3	7/8	3	1.8
3/4	20	M20	130	35	28.2	88.9	44	3/4	4	115	25.4	7/8	3	2.3
1	25	M24	150	41	34.9	101.6	52	7/8	4	125	28.6	1	3	3.7
1 1/4	32	M24	160	41	43.7	111.1	64	7/8	4	125	28.6	1	5	4.1
1 1/2	40	M27	180	44	50	123.8	70	1	4	140	31.8	1 1/8	6	5.5
2	50	M24	215	57	62.5	165.1	105	7/8	8	145	38.1	1	8	9.8
2 1/2	65	M27	245	64	75.4	190.5	124	1	8	160	41.3	1 1/8	8	16.4
3	80	M30	265	73	91.4	203.2	133	1 1/8	8	180	47.7	1 1/4	10	21.8
4	100	M33	310	90	116.8	241.3	162	1 1/4	8	195	54	1 3/8	11	33
5	125	M39	375	105	144.4	292.1	197	1 1/2	8	250	73.1	1 5/8	11	59
6	150	M36	395	119	171.4	317.5	229	1 3/8	12	260	82.6	1 1/2	13	75
8	200	M42	485	143	222.2	393.7	292	1 5/8	12	290	92.1	1 3/4	13	118
10	250	M48	585	178	277.4	482.6	368	1 7/8	12	335	108	2	13	198
12	300	M52	675	219	328.2	571.5	451	2	16	375	123.9	2 1/8	13	264
14	350	M56	750	241	360.2	635	495	2 1/4	16	405	133.4	2 3/8	13	341
16	400	M64	825	260	411.2	704.8	552	2 1/2	16	445	146.1	2 5/8	13	454
18	450	M72	915	276	462.3	774.7	597	2 3/4	16	495	162	2 7/8	13	590
20	500	M76	985	292	514.4	831.8	641	3	16	540	177.8	3 1/8	13	792
24	600	M90	1170	330	616	990.6	762	3 1/2	16	615	203.2	3 5/8	13	1248

2500 Lb Lap Joint Flange

Size in Inch	Size in mm	Lapped Radius	ISO Stud Size	Outer Diameter	Lapped Thick.	Flanges Thick.	Lapped ID	Lapped Thick.	PCD	Hole Size	Bolt Size UNC	No of Bolts	RF Stud Length	Weight in kg
				A	C	B	D	G	E
1/2	15	3	M20	135	40	43	22.9	30.2	88.9	7/8	3/4	4	120	3.2
3/4	20	3	M20	140	43	51	28.2	31.8	95.2	7/8	3/4	4	125	3.7
1	25	3	M24	160	48	57	34.9	35	108	1	7/8	4	140	5
1 1/4	32	5	M27	185	52	73	43.7	38.1	130.2	1 1/8	1	4	150	7.5
1 1/2	40	6	M30	205	60	79	50	44.5	146	1 1/4	1 1/8	4	170	10
2	50	8	M27	235	70	95	62.5	50.9	171.4	1 1/8	1	8	180	17.5
2 1/2	65	8	M30	265	79	114	75.4	57.2	196.8	1 1/4	1 1/8	8	195	23
3	80	10	M33	305	92	133	91.4	66.7	228.6	1 3/8	1 1/4	8	220	37.8
4	100	11	M39	355	108	165	116.8	76.2	273	1 5/8	1 1/2	8	255	57
5	125	11	M45	420	130	203	144.4	92.1	323.8	1 7/8	1 3/4	8	300	95
6	150	13	M52	485	152	235	171.4	108	368.3	2 1/8	2	8	345	148
8	200	13	M52	550	178	305	222.2	127	438.2	2 1/8	2	12	380	221
10	250	13	M64	675	229	375	277.4	165.1	539.8	2 5/8	2 1/2	12	490	425
12	300	13	M72	760	254	441	328.2	184.2	619.1	2 7/8	2 3/4	12	540	500

PN10 Lap Joint Flange

Directions for the designation		Lapped flanges							Screws	Weight
Rated Diameter	External diameter of the pipe	a	b	D	d2	f	t	Holes		Flange
25	30	85	16	115	33	14	4	4	M12	1,11
	33,7				37					1,08
32	38	100	16	140	41	18	4	4	M 16	1,63
	42,4				46					1,58
40	44,5	110	16	150	48	18	4	4	M 16	1,85
	48,3				52					1,81
50	57	125	16	165	62	18	4	4	M 16	2,16
	60,3				64					2,14
65	76,1	145	16	185	80	18	4	4	M 16	2,60
80	88,9	160	18	200	94	18	5	8***	M 16	3,14
100	108	180	18	220	113	18	5	8	M 16	3,63
	114,3				119					3,47
125	133	210	18	250	138	18	5	8	M 16	4,49
	139,7				145					4,26
150	159	240	18	285	164	22	5	8	M 20	5,54
	168,3				174					5,16
175	193,7	270	20	315	200	22	5	8	M 20	6,76
200	219,1	295	20	340	225	22	5	12	M 20	7,22
250	267	355	24	405	273	25	5	12	M 22	12,0
	273				279					11,6
300	323,9	410	28	460	330	25	5	12	M 22	16,3
350	355,6	470	32	520	362	25	5	16	M 22	25,4
	368				374					23,6
400	406,4	525	36	580	413	30	6	16	M 27	33,4
	419				426					31,0
450	457,2	585	40	640	464	30	6	20	M 27	43,3
500	508	650	44	715	515	33	6	20	M 30	60,6

PN16 Lap Joint Flange

Directions for the designation		Lapped flanges							Screws	Weight
Rated Diameter	External diameter of the pipe	a	b	D	d2	f	t	Holes		Flange
25	30	85	16	115	33	14	4	4	M12	1,11
	33,7				37					1,08
32	38	100	16	140	41	18	4	4	M 16	1,63
	42,4				46					1,58
40	44,5	110	16	150	48	18	4	4	M 16	1,85
	48,3				52					1,81
50	57	125	16	165	62	18	4	4	M 16	2,16
	60,3				64					2,14
65	76,1	145	16	185	80	18	4	4	M 16	2,60
80	88,9	160	18	200	94	18	5	8***	M 16	3,14
100	108	180	18	220	113	18	5	8	M 16	3,63
	114,3				119					3,47
125	133	210	18	250	138	18	5	8	M 16	4,49
	139,7				145					4,26
150	159	240	18	285	164	22	5	8	M 20	5,54
	168,3				174					5,16
175	193,7	270	20	315	200	22	5	8	M 20	6,76
200	219,1	295	20	340	225	22	5	12	M 20	7,22
250	267	355	24	405	273	25	5	12	M 22	12,0
	273				279					11,6
300	323,9	410	28	460	330	25	5	12	M 22	16,3
350	355,6	470	32	520	362	25	5	16	M 22	25,4
	368				374					23,6
400	406,4	525	36	580	413	30	6	16	M 27	33,4
	419				426					31,0
450	457,2	585	40	640	464	30	6	20	M 27	43,3
500	508	650	44	715	515	33	6	20	M 30	60,6

Lap Joint flanges can swivel freely around the pipe. This makes it easier to align opposing flange bolt holes.
Because these flanges are not in contact with the fluid inside the pipe, they are more durable.
The lap joint flanges in corroding or eroding piping systems can be salvaged for re-use.
Lap joint flanges have a low pressure-holding capacity. However, it outperforms slip-on flanges.

Ship Building
Refineries
Marine Applications
Nuclear Power
Power Plants
Fossil Fuel Power Plants
Paper & Pulp
Industrial Boilers
Oil & Gas Industry

CLass	150	300	600	900	1500	2500
DIA A	30	38	38	38	38	43
DIA D	90	95	95	120	120	135
THK B	11.2	14.3	14.3	22.3	22.3	30.2
DIA K	60.3	66.7	66.7	82.6	82.6	88.9
H	16	22	22	32	32	40
NO. L	4	4	4	4	4	4
DIA L	15.9	15.9	15.9	22.2	22.2	22.2
Stud Bolts Diameter x Length
DIA ( in)	1/2	1/2	1/2	3/4	3/4	3/4
Lenght ( mm)	55	65	75	110	110	120

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