Downward-welded flange (Table 1)

Downward-welded flange

Downward-welded flange (Table 1)

Pg 10Kg/Cm2

Nominal path	External Diameter of Pipe	External diameter		Central diameter of bolt hole	Diameter of extended connection part
D g	d 0	D		D₁	D²
10	14	90		60	40
15	18	95		65	45
20	25	105		75	55
25	32	115		85	65
32	38	135		100	78
40	45	145		110	85
50	57	168		125	100
65	76	180		145	120
80	89	195		160	135
100	108	215		180	165
125	133	245		210	185
Height of extended connection	Thickness of flange	Bolt hole		Theoretical weight
Height of extended connection	Thickness of flange	diameter	Pcs	Theoretical weight
F	d	d		Kg
2	12	14	4	0.458
2	12	14	4	0.511
2	14	14	4	0.748
2	14	14	4	0.89
3	16	18	4	1.40
3	18	18	4	1.71
3	18	18	4	2.09
3	20	18	4	2.84
3	20	18	4	3.24
3	21	18	4	4.01
3	24	18	8	5.4

Downward-welded flange (Table 2)

Pg 10Kg/Cm2

Nominal path	External Diameter of Pipe	External diameter		Central diameter of bolt hole	Diameter of extended connection part
D g	d 0	D		D₁	D²
150	159	280		240	210
200	219	335		295	368
250	273	405		355	320
300	325	460		410	378
350	377	520		470	438
400	426	530		525	496
450	478	640		585	550
500	520	705		650	660
600	630	840		770	720
Height of extended connection	Thickness of flange	Bolt hole		Theoretical weight
Height of extended connection	Thickness of flange	diameter	Pcs	Theoretical weight
F	d	d		Kg
3	28	23	8	7.92
3	30	23	12	10.1
3	32	25	12	15.7
4	32	25	12	18.1
4	34	25	16	23.3
4	38	30	16	31.9
4	42	30	20	40.2
4	43	34	20	55.1
5	50	41	30	80.3

Downward-welded flange (Table 3)

Pg 10Kg/Cm2

Nominal path	External Diameter of Pipe	External diameter		Central diameter of bolt hole	Diameter of extended connection part
D g	d 0	D		D₁	D²
10	14	90		60	40
15	18	95		65	45
20	25	105		75	58
25	32	115		85	68
32	38	135		100	78
40	45	145		110	85
50	57	168		125	102
65	76	180		145	120
80	89	195		160	138
100	108	215		180	168
125	133	245		210	188
Height of extended connection	Thickness of flange	Bolt hole		Theoretical weight
Height of extended connection	Thickness of flange	diameter	Pcs	Theoretical weight
F	d	d		Kg
2	14	14	4	0.547
2	14	14	4	0.711
2	16	14	4	0.867
2	16	14	4	1.174
2	18	18	4	1.60
3	21	18	4	2.00
3	22	18	4	2.61
3	24	18	4	3.45
3	24	18	8	3.71
3	26	18	8	4.80
3	28	18	8	6.48

Downward-welded flange (Table 4)

Pg 10Kg/Cm²

Nominal path	External Diameter of Pipe	External diameter		Central diameter of bolt hole	Diameter of extended connection part
D g	d 0	D		D₁	D²
10	14	90		60	40
15	18	95		65	45
20	25	105		75	58
25	32	115		85	68
32	38	130		100	78
40	45	145		110	85
50	57	160		125	102
65	76	180		145	120
80	89	195		160	138
100	108	215		180	168
125	133	245		210	188
Height of extended connection	Thickness of flange	Bolt hole		Theoretical weight
Height of extended connection	Thickness of flange	diameter	Pcs	Theoretical weight
F	d	d		Kg
2	14	14	4	0.547
2	14	14	4	0.711
2	16	14	4	0.867
2	16	14	4	1.174
2	18	18	4	1.60
3	21	18	4	2.00
3	22	18	4	2.61
3	24	18	4	3.45
3	24	18	8	3.71
3	26	18	8	4.80
3	28	18	8	6.48