플랜지 종류 (3) LAP JOINT FLANGE, ASME 150#, 300#, 400#, 600#, 900#, 1500#, 2500#

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1. LAP JOINT FLANGE

랩 조인트 플랜지는 flat face가 특징이며 항상 스텁 엔드와 함께 사용됩니다.

랩 조인트 플랜지는 스터브 끝의 플랜지 부분을 수용하기 위한 플랜지 면과 보어의 교차점에서의 반경을 제외하고 모양이 슬립온 플랜지와 유사합니다.

랩 조인트 플랜지가 파이프 위로 미끄러지고 스터브 끝의 뒷면에 자리잡고 볼트의 압력에 의해 유지됩니다.

스터브 끝단과 함께 랩 조인트 플랜지를 사용하는 것은 랩 조인트 플랜지의 재료가 스터브 재료보다 낮은 등급(일반적으로 탄소강)일 수 있으므로 스테인리스강 또는 니켈 합금 파이프라인을 위한 비용 효율적인 솔루션입니다.

따라서 이 배열에는 다음과 같은 두 가지 장점이 있습니다.

1. 고급 재료의 사용이 최소화되므로 파이프라인의 플랜지 조인트의 전체 비용이 절감됩니다.
2. 볼트 정렬을 돕기 위해 랩 조인트 플랜지를 파이프 주위로 회전할 수 있으므로 볼트 체결 작업이 간소화됩니다.

2. LAP JOINT FLANGE DIMENSIONS IN INCHES

1) Lap joint flange dimensions class 150 in inches (ASME B16.5)

FLANGE NPS	Inside Diameter	Outside Diameter	Bolt Circle (BC)	H	T1	T2	RA	Bolt Hole (B)	No. of Bolt Holes
1/2″	0.88″	3.50″	2.38″	1.19″	.44″	.62″	.12″	.62″	4
3/4″	1.09″	3.88″	2.75″	1.50″	.50″	.62″	.12″	.62″	4
1″	1.36″	4.25″	3.12″	1.94″	.56″	.69″	.12″	.62″	4
1-1/4″	1.70″	4.62″	3.50″	2.31″	.62″	.81″	.19″	.62″	4
1-1/2″	1.97″	5.00″	3.88″	2.56″	.69″	.88″	.25″	.62″	4
2″	2.44″	6.00″	4.75″	3.06″	.75″	1.00″	.31″	.75″	4
2-1/2″	2.94″	7.00″	5.50″	3.56″	.88″	1.12″	.31″	.75″	4
3″	3.57″	7.50″	6.00″	4.25″	.94″	1.19″	.38″	.75″	4
3-1/2″	4.07″	8.50″	7.00″	4.81″	.94″	1.25″	.38″	.75″	8
4″	4.57″	9.00″	7.50″	5.31″	.94″	1.31″	.44″	.75″	8
5″	5.66″	10.00″	8.50″	6.44″	.94″	1.44″	.44″	.88″	8
6″	6.72″	11.00″	9.50″	7.56″	1.00″	1.56″	.50″	.88″	8
8″	8.72″	13.50″	11.75″	9.69″	1.12″	1.75″	.50″	.88″	8
10″	10.88″	16.00″	14.25″	12.00″	1.19″	1.94″	.50″	1.00″	12
12″	12.88″	19.00″	17.00″	14.38″	1.25″	2.19″	.50″	1.00″	12
14″	14.14″	21.00″	18.75″	15.75″	1.38″	3.12″	.50″	1.12″	12
16″	16.16″	23.50″	21.25″	18.00″	1.44″	3.44″	.50″	1.12″	16
18″	18.18″	25.00″	22.75″	19.88″	1.56″	3.81″	.50″	1.25″	16
20″	20.20″	27.50″	25.00″	22.00″	1.69″	4.06″	.50″	1.25″	20
22″	22.22″	29.50″	27.25″	24.25″	1.81″	4.25″	.50″	1.38″	20
24″	24.25″	32.00″	29.50″	26.12″	1.88″	4.38″	.50″	1.38″	20

2) Lap joint flange dimensions class 300 in inches (ASME B16.5)

FLANGE NPS	Inside Diameter	Outside Diameter	Bolt Circle (BC)	H	T1	T2	RA	Bolt Hole (B)	No. of Bolt Holes
1/2″	0.90″	3.75″	2.62″	1.50″	0.56″	0.88″	.12″	0.62″	4
3/4″	1.11″	4.62″	3.25″	1.88″	0.62″	1.00″	.12″	0.75″	4
1″	1.38″	4.88″	3.50″	2.12″	0.69″	1.06″	.12″	0.75″	4
1-1/4″	1.72″	5.25″	3.88″	2.50″	0.75″	1.06″	.19″	0.75″	4
1-1/2″	1.97″	6.12″	4.50″	2.75″	0.81″	1.19″	.25″	0.88″	4
2″	2.46″	6.50″	5.00″	3.31″	0.88″	1.31″	.31″	0.75″	8
2-1/2″	2.97″	7.50″	5.88″	3.94″	1.00″	1.50″	.31″	0.88″	8
3″	3.60″	8.25″	6.62″	4.62″	1.12″	1.69″	.38″	0.88″	8
3-1/2″	4.10″	9.00″	7.25″	5.25″	1.19″	1.75″	.38″	0.88″	8
4″	4.60″	10.00″	7.88″	5.75″	1.25″	1.88″	.44″	0.88″	8
5″	5.69″	11.00″	9.25″	7.00″	1.38″	2.00″	.44″	0.88″	8
6″	6.75″	12.50″	10.62″	8.12″	1.44″	2.06″	.50″	0.88″	12
8″	8.75″	15.00″	13.00″	10.25″	1.62″	2.44″	.50″	1.00″	12
10″	10.92″	17.50″	15.25″	12.62″	1.88″	3.75″	.50″	1.12″	16
12″	12.92″	20.50″	17.75″	14.75″	2.00″	4.00″	.50″	1.25″	16
14″	14.18″	23.00″	20.25″	16.75″	2.12″	4.38″	.50″	1.25″	20
16″	16.19″	25.50″	22.50″	19.00″	2.25″	4.75″	.50″	1.38″	20
18″	18.20″	28.00″	24.75″	21.00″	2.38″	5.12″	.50″	1.38″	24
20″	20.25″	30.50″	27.00″	23.12″	2.50″	5.50″	.50″	1.38″	24
22″	22.25″	33.00″	29.25″	25.25″	2.63″	5.75″	.50″	1.63″	24
24″	24.25″	36.00″	32.00″	27.62″	2.75″	6.00″	.50″	1.62″	24

3) Lap joint flange dimensions class 400 in inches (ASME B16.5)

FLANGE NPS	Inside Diameter	Outside Diameter	Bolt Circle (BC)	H	T1	T2	RA	Bolt Hole (B)	No. of Bolt Holes
1/2″	0.90″	3.75″	2.62″	1.50″	0.56″	0.88″	.12″	0.62″	4
3/4″	1.11″	4.62″	3.25″	1.88″	0.62″	1.00″	.12″	0.75″	4
1″	1.38″	4.88″	3.50″	2.12″	0.69″	1.06″	.12″	0.75″	4
1-1/4″	1.72″	5.25″	3.88″	2.50″	0.81″	1.12″	.19″	0.75″	4
1-1/2″	1.97″	6.12″	4.50″	2.75″	0.88″	1.25″	.25″	0.88″	4
2″	2.46″	6.50″	5.00″	3.31″	1.00″	1.44″	.31″	0.75″	8
2-1/2″	2.97″	7.50″	5.88″	3.94″	1.12″	1.62″	.31″	0.88″	8
3″	3.60″	8.25″	6.62″	4.62″	1.25″	1.81″	.38″	0.88″	8
3-1/2″	4.10″	9.00″	7.25″	5.25″	1.38″	1.94″	.38″	1.00″	8
4″	4.60″	10.00″	7.88″	5.75″	1.38″	2.00″	.44″	1.00″	8
5″	5.69″	11.00″	9.25″	7.00″	1.50″	2.12″	.44″	1.00″	8
6″	6.75″	12.50″	10.62″	8.12″	1.62″	2.25″	.50″	1.00″	12
8″	8.75″	15.00″	13.00″	10.25″	1.88″	2.69″	.50″	1.12″	12
10″	10.92″	17.50″	15.25″	12.62″	2.12″	4.00″	.50″	1.25″	16
12″	12.92″	20.50″	17.75″	14.75″	2.25″	4.25″	.50″	1.38″	16
14″	14.18″	23.00″	20.25″	16.75″	2.38″	4.62″	.50″	1.38″	20
16″	16.19″	25.50″	22.50″	19.00″	2.50″	5.00″	.50″	1.50″	20
18″	18.20″	28.00″	24.75″	21.00″	2.62″	5.38″	.50″	1.50″	24
20″	20.25″	30.50″	27.00″	23.12″	2.75″	5.75″	.50″	1.62″	24
22″	22.25″	33.00″	29.25″	25.25″	2.88″	6.00″	.50″	1.75″	24
24″	24.25″	36.00″	32.00″	27.62″	3.00″	6.25″	.50″	1.88″	24

4) Lap joint flange dimensions class 600 in inches (ASME B16.5)

FLANGE NPS	Inside Diameter	Outside Diameter	Bolt Circle (BC)	H	T1	T2	RA	Bolt Hole (B)	No. of Bolt Holes
1/2″	0.90″	3.75″	2.62″	1.50″	0.56″	0.88″	.12″	0.62″	4
3/4″	1.11″	4.62″	3.25″	1.88″	0.62″	1.00″	.12″	0.75″	4
1″	1.38″	4.88″	3.50″	2.12″	0.69″	1.06″	.12″	0.75″	4
1-1/4″	1.72″	5.25″	3.88″	2.50″	0.81″	1.12″	.19″	0.75″	4
1-1/2″	1.97″	6.12″	4.50″	2.75″	0.88″	1.25″	.25″	0.88″	4
2″	2.46″	6.50″	5.00″	3.31″	1.00″	1.44″	.31″	0.75″	8
2-1/2″	2.97″	7.50″	5.88″	3.94″	1.12″	1.62″	.31″	0.88″	8
3″	3.60″	8.25″	6.62″	4.62″	1.25″	1.81″	.38″	0.88″	8
3-1/2″	4.10″	9.00″	7.25″	5.25″	1.38″	1.94″	.38″	1.00″	8
4″	4.60″	10.75″	8.50″	6.00″	1.5″	2.12″	.44″	1.00″	8
5″	5.69″	13.00″	10.50″	7.44″	1.75″	2.38″	.44″	1.12″	8
6″	6.75″	14.00″	11.50″	8.75″	1.88″	2.62″	.50″	1.12″	12
8″	8.75″	16.50″	13.75″	10.75″	2.19″	3.00″	.50″	1.25″	12
10″	10.92″	20.00″	17.00″	13.5″	2.50″	4.38″	.50″	1.38″	16
12″	12.92″	22.00″	19.25″	15.75″	2.62″	4.62″	.50″	1.38″	20
14″	14.18″	23.75″	20.75″	17.00″	2.75″	5.00″	.50″	1.50″	20
16″	16.19″	27.00″	23.75″	19.50″	3.00″	5.50″	.50″	1.62″	20
18″	18.20″	29.25″	25.75″	21.50″	3.25″	6.00″	.50″	1.75″	20
20″	20.25″	32.00″	28.50″	24.00″	3.50″	6.50″	.50″	1.75″	24
22″	22.25″	34.25″	30.63″	26.25″	3.75″	6.88″	.50″	1.75″	24
24″	24.25″	37.00″	33.00″	28.25″	4.00″	7.25″	.50″	2.00″	24

5) Lap joint flange dimensions class 900 in inches (ASME B16.5)

FLANGE NPS	Inside Diameter	Outside Diameter	Bolt Circle (BC)	H	T1	T2	RA	Bolt Hole (B)	No. of Bolt Holes
3″	3.60″	9.50″	7.50″	5.00″	1.50″	2.13″	.38″	1.00″	8
4″	4.60″	11.50″	9.25″	6.25″	1.75″	2.75″	.44″	1.25″	8
5″	5.69″	13.75″	11.00″	7.50″	3.00″	3.13″	.44″	1.38″	8
6″	6.75″	15.00″	12.50″	9.25″	2.19″	3.38″	.50″	1.25″	12
8″	8.75″	18.50″	15.50″	11.75″	2.50″	4.50″	.50″	1.50″	12
10″	10.92″	21.50″	18.50″	14.50″	2.75″	5.00″	.50″	1.50″	16
12″	12.92″	24.00″	21.00″	16.50″	3.13″	5.63″	.50″	1.50″	20
14″	14.18″	25.25″	22.00″	17.75″	3.38″	6.13″	.50″	1.63″	20
16″	16.19″	27.75″	24.25″	20.00″	3.50″	6.50″	.50″	1.75″	20
18″	18.20″	31.00″	27.00″	22.25″	4.00″	7.50″	.50″	2.00″	20
20″	20.25″	33.75″	29.50″	24.50″	4.25″	8.25″	.50″	2.13″	20
24″	24.25″	41.00″	35.50″	29.50″	5.50″	10.50″	.50″	2.63″	20

6) Lap joint flange dimensions class 1500 in inches (ASME B16.5)

FLANGE NPS	Inside Diameter	Outside Diameter	Bolt Circle (BC)	Raised Face (R)	Raised Face (RF)	H	Raised Face Thickness (T)	T1	Flat Face Thickness (T2)	Bolt Hole (B)	No. of Bolt Holes
1/2″	0.88″	4.75″	3.25″	1.38″	.250″	1.50″	1.50″	0.88″	1.25″	0.88″	4
3/4″	1.09″	5.13″	3.50″	1.69″	.250″	1.75″	1.63″	1.00″	1.38″	0.88″	4
1″	1.36″	5.88″	4.00″	2.00″	.250″	2.06″	1.88″	1.13″	1.63″	1.00″	4
1-1/4″	1.70″	6.25″	4.38″	2.50″	.250″	2.50″	1.88″	1.13″	1.63″	1.00″	4
1-1/2″	1.95″	7.00″	4.88″	2.88″	.250″	2.75″	2.00″	1.25″	1.75″	1.13″	4
2″	2.44″	8.50″	6.50″	3.63″	.250″	4.13″	2.50″	1.50″	2.25″	1.00″	8
2-1/2″	2.94″	9.63″	7.50″	4.13″	.250″	4.88″	2.75″	1.63″	2.50″	1.13″	8
3″ **	3.57″	10.50″	8.00″	5.00″	.250″	5.25″	3.13″	1.88″	2.88″	1.25″	8
4″ **	4.57″	12.25″	9.50″	6.19″	.250″	6.38″	3.81″	2.13″	3.56″	1.38″	8
5″ **	5.66″	14.75″	11.50″	7.31″	.250″	7.75″	4.38″	2.88″	4.13″	1.63″	8
6″ **	6.72″	15.50″	12.50″	8.50″	.250″	9.00″	4.94″	3.25″	4.69″	1.50″	12
8″ **	8.72″	19.00″	15.50″	10.63″	.250″	11.50″	5.88″	3.63″	5.63″	1.75″	12
10″ **	10.88″	23.00″	19.00″	12.75″	.250″	14.50″	6.50″	4.25″	6.25″	2.00″	12
12″ **	12.88″	26.50″	22.50″	15.00″	.250″	17.75″	7.38″	4.88″	7.13″	2.13″	16

7) Lap joint flange dimensions class 2500 in inches (ASME B16.5)

FLANGE NPS	Inside Diameter	Outside Diameter	Bolt Circle (BC)	H	T1	T2	RA	Bolt Hole (B)	No. of Bolt Holes
1/2″	0.90″	5.25″	3.50″	1.69″	1.19″	1.56″	.12″	0.88″	4
3/4″	1.11″	5.50″	3.75″	2.00″	1.25″	1.69″	.12″	0.88″	4
1″	1.38″	6.25″	4.25″	2.25″	1.38″	1.88″	.12″	1.00″	4
1-1/4″	1.72″	7.25″	5.13″	2.88″	1.50″	2.06″	.19″	1.13″	4
1-1/2″	1.97″	8.00″	5.75″	3.13″	1.75″	2.38″	.25″	1.25″	4
2″	2.46″	9.25″	6.75″	3.75″	2.00″	2.75″	.31″	1.13″	8
2-1/2″	2.97″	10.50″	7.75″	4.50″	2.25″	3.13″	.31″	1.25″	8
3″	3.60″	12.00″	9.00″	5.25″	2.63″	3.63″	.38″	1.38″	8
4″	4.60″	14.00″	10.75″	6.50″	3.00″	4.25″	.44″	1.63″	8
5″	5.69″	16.50″	12.75″	8.00″	3.63″	5.13″	.44″	1.88″	8
6″	6.75″	19.00″	14.50″	9.25″	4.25″	6.00″	.50″	2.13″	8
8″	8.75″	21.75″	17.25″	12.00″	5.00″	7.00″	.50″	2.13″	12
10″	10.92″	26.50″	21.25″	14.75″	6.50″	9.00″	.50″	2.63″	12
12″	12.92″	30.00″	24.38″	17.38″	7.25″	10.00″	.50″	2.88″	12