Carbon/Alloy/Stainless Steel Lap Joint Flange

• Standard: ANSI, DIN, GB, JIS, GOST, BSW
• Type: Lap Joint Flange
• Material: Carbon,Stainless,Alloy
• Structure: Flanges
• Connection: Lap Joint
• Sealing Surface: RF
• Model NO.: KM-035
• Manufacturing Way: Forging
• Size: 3/8"-80"(Dn10~Dn2000)
• Transport Package: in Wooden Case or Pallet
• Specification: 3/8"~80"
• Trademark: Kingmeal
• Origin: Made in China
• HS Code: 73079100
• Production Capacity: 2000 Tons Per Month

Product Description

Lap Joint Flange
Lap Joint Flanges(Loose Flanges) are used with a corresponding stub-end that "inserts" in the inside of the flange.  The main benefit of this type of flange, is that once the pipe welds to the insert stub-end, the flange then can rotate for easier alignment of the bolting holes.  However, lap joint flanges and their stub-ends' ability to hold pressure is about the same as slip-on flanges.  They are not suitable for situations with a high external or changing loads of force.  They do provide an advantage in a piping system that needs frequent dismantling for inspection or to remove build-ups.
Size
Lap Joint Flange(Loose Flange):3/8"-80"
DN10-DN2000
Pressure
America Series:Class 150 ,Class 300, Class 600, Class 900A ,Class 1500,Class 2500.        
Europe Series:PN2.5,PN6,PN10,PN16,PN25,PN40,PN63,PN100,PN160,PN250,PN320,PN400.
Flange Facing Types
America Series:Flat face(FF),Raised face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring type joints face(RJ/RTJ)
Europe Series:Type A(Flat Face),Type B(Raised Face),Type C(Tongue),Type D(Groove),Type E(Spigot),Type F(Recess),Type G(O-Ring Spigot),Type H(O-Ring Groove)
Material
Carbon steel: ASTM A105,ASTM A105N,GB 20,C22.8.
Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911
Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N
ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti
ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
Low temperature steel: ASTM/ASME A402 WPL 3-WPL 6
High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70
Standards
ASME ANSI B16.5,ASME ANSI B16.47.
API 605,API 6L.
MSS SP 44
CSA Z245.12
EN1092-1,EN1759-1.
DIN2642,DIN2655,DIN2656.
BS1560,BS 4504,BS 10.
AFNOR NF E29-200-1
ISO7005-1
AS2129
JIS B2220
UNI 2276. UNI 2277.UNI 2278 .UNI 6089 .UNI 6090
Industrial Processes
Die forging,Machining.
Application for Lap Joint flange(LJ flange) /Loose flanges
Natural gas,chemical,petroleum,ship building,marine,paper making, metallurgy, electric, power, boiler , etc. 

Standard Specification

PM 10

DN	Pipe OD	D	B2	C1	K	E	L	Qtty.	weight
Up to DN 40 see PN40
From DN 50 to DN 150 see PN16
200	219,1	340	226	24	295	6	22	8	8,87
	206,0**	340	213	24	295	6	22	8	8,87
250	273,0	395	281	26	350	8	22	12	11,20
	256,0**	395	264	26	350	8	22	12	11,20
300	323,9	445	333	26	400	8	22	12	12,80
	306,0**	445	315	26	400	8	22	12	12,80
350	355,6	505	365	30	460	8	22	16	19,40
400	406,4	565	416	32	515	8	26	16	26,40
450	457,0	615	467	36	565	8	26	20	32,20
500	508,0	670	519	38	620	8	26	20	38,50
600	610,0	780	622	42	725	8	30	20	52,20

PN 16

DN	Pipe OD	D	B2	C1	K	E	L	Qtty.	weight
Up to DN 40 see PN40
50	60,3	165	65	20	125	5	18	4	2,52
	54,0**	165	62	20	125	5	18	4	2,52
65	76,1	185	81	20	145	6	18	8	3,05
	70,0**	185	75	20	145	6	18	8	3,05
80	88,9	200	94	20	160	6	18	8	3,48
	84,0**	200	89	20	160	6	18	8	3,48
100	114,3	220	120	22	180	6	18	8	4,20
	106,0**	220	113	22	180	6	18	8	4,20
125	139,7	250	145	22	210	6	18	8	5,21
	131,0**	250	138	22	210	6	18	8	5,21
150	168,0	285	174	24	240	6	22	8	6,89
	156,0**	285	164	24	240	6	22	8	6,89
200	219,1	340	226	26	295	6	22	12	9,31
250	273,0	405	281	29	355	8	26	12	13,50
300	323,9	460	333	32	410	8	26	12	18,00
350	355,6	520	365	35	470	8	26	16	27,00
400	406,4	580	416	38	525	8	30	16	34,60
450	457,0	640	467	42	585	8	30	20	44,60
500	508,0	715	519	46	650	8	33	20	62,00

PN 25

DN	Pipe OD	D	B2	C1	K	E	L	Qtty.	weight
From DN 50 to DN 150 see PN16
200	219,1	360	226	32	310	6	26	12	13,80
250	273,0	425	281	35	370	8	30	12	19,40
300	323,9	485	333	38	430	8	30	16	25,50

PN 40

DN	Pipe OD	D	B2	C1	K	E	L	Qtty.	weight
10	17,2	90	21	14	60	3	14	4	0,60
15	21,3	95	25	14	65	3	14	4	0,65
20	26,9	105	31	16	75	4	14	4	0,91
25	33,7	115	38	16	85	4	14	4	1,08
32	42,4	140	47	18	100	5	18	4	1,77
40	48,3	150	53	18	110	5	18	4	2,02
	44,5**	150	50	18	110	5	18	4	2,02
50	60,3	165	65	20	125	5	18	4	2,65
65	76,1	185	81	22	145	6	18	8	3,36
80	88,9	200	94	24	160	6	18	8	4,18
100	114,3	235	120	26	190	6	22	8	5,87
125	139,7	270	145	28	220	6	26	8	7,95
150	168,3	300	174	30	250	6	26	8	9,97

** Dimension not included in EN 1092-1
Additional dimensions, pressure rates and materials on request