螺紋法蘭

尺寸: 1/2"-48"
壁厚: SCH5S-SCHXXS
材料: 特殊合金，超級雙相不銹鋼，不銹鋼，碳鋼，鈦
標準: GB，HG，ASME B16.5，ANSI B16.47，BS4504，DIN，JIS

在線諮詢

产品介绍
材質

螺紋法蘭（TH法蘭）的外形與可滑動法蘭相似，但是孔帶有螺紋，因此無需焊接即可組裝。顯然，這限制了其在相對低壓管道系統中的應用。組裝後，可以將螺紋法蘭焊接在接頭周圍，但這不是增加法蘭壓力應用的令人滿意的方法。

作為管道解決方案提供商之一，Yaang一直致力於為油氣，水，可再生能源和基礎設施領域的項目提供一站式解決方案。通過多年的一貫奉獻和創新，我們可靠，具有成本效益和環境友好的解決方案贏得了客戶的廣泛認可。

中國螺紋法蘭製造商Yaang提供鍛鋼，不銹鋼，合金鋼等螺紋法蘭，螺紋配件，螺紋管法蘭。

尺寸

1/2“ – 56”（DN15至DN1,400）

壓力

系列：Class 150，Class 300，Class 600，Class 900A，Class 1500、2500 Class。
歐洲系列：PN2.5，PN6，PN10，PN16， PN25，PN40，PN63，PN100，PN160，PN250，PN320，PN400。

法蘭面對型

美國系列：平面型（FF），抬高型（RF），舌頭（T），溝槽（G），女性（F），男性（M），環形接頭面（RJ / RTJ）
歐洲系列： A型（平面），B型（凸起面），C型（舌頭），D型（凹槽），E型（螺紋），F型（凹入），G型（O型環螺紋），H型（ O形圈槽）

材料

碳鋼：ASTM A105，ASTM A105N，GB 20，C22.8。
合金鋼：ASTM / ASME A182 F1-F12-F11-F22- F5-F9- F91
不銹鋼：ASTM / ASME A182 F304-304L-304H-304LN-304N
ASTM / ASME A182 F316-316L-316H-316LN-316N-316Ti
ASTM / ASME A182 F321-321H，F347-347H
低溫鋼：ASTM / ASME A350 LF2。
高性能鋼：ASTM / ASME A694 F42，F52，F56，F60，F65，F70

標準

ASME ANSI B16.5，ASME ANSI B16.47。
API 605，API 6L。
MSS SP 44
CSA Z245.12
EN1092-1，EN1759-1。
DIN2565，DIN2566，DIN2567，DIN2568，DIN2569
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

螺紋法蘭的尺寸在ASME B16.5中進行了規定-包括 NPS½ “至24”且NPS 26“至60”以上的管道法蘭和法蘭配件，應符合ASME B16.47的要求。

法蘭尺寸檢查時，應檢查

機身外徑
螺栓圓和螺栓孔直徑
集線器長度
螺栓孔的平直度和對準

THREADED CLASS 150

Threaded flange dimensions class 150 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″	0.93″	3.50″	2.38″	1.38″	.063″	1.19″	.62″	.38″	.56″	.62″	4
3/4″	1.14″	3.88″	2.75″	1.69″	.063″	1.50″	.62″	.44″	.56″	.62″	4
1″	1.41″	4.25″	3.12″	2.00″	.063″	1.94″	.69″	.50″	.63″	.62″	4
1-1/4″	1.75″	4.62″	3.50″	2.50″	.063″	2.31″	.81″	.56″	.75″	.62″	4
1-1/2″	1.99″	5.00″	3.88″	2.88″	.063″	2.56″	.88″	.62″	.82″	.62″	4
2″	2.50″	6.00″	4.75″	3.62″	.063″	3.06″	1.00″	.69″	.94″	.75″	4
2-1/2″	3.00″	7.00″	5.50″	4.12″	.063″	3.56″	1.12″	.82″	1.06″	.75″	4
3″	3.63″	7.50″	6.00″	5.00″	.063″	4.25″	1.19″	.88″	1.13″	.75″	4
3-1/2″	4.13″	8.50″	7.00″	5.50″	.063″	4.81″	1.25″	.88″	1.19″	.75″	8
4″	4.63″	9.00″	7.50″	6.19″	.063″	5.31″	1.31″	.88″	1.25″	.75″	8
5″	5.69″	10.00″	8.50″	7.31″	.063″	6.44″	1.44″	.88″	1.38″	.88″	8
6″	6.75″	11.00″	9.50″	8.50″	.063″	7.56″	1.56″	.94″	1.50″	.88″	8
8″	8.75″	13.50″	11.75″	10.62″	.063″	9.69″	1.75″	1.06″	1.69″	.88″	8
10″	10.88″	16.00″	14.25″	12.75″	.063″	12.00″	1.94″	1.13″	1.88″	1.00″	12
12″	12.94″	19.00″	17.00″	15.00″	.063″	14.38″	2.19″	1.19″	2.13″	1.00″	12
14″	14.19″	21.00″	18.75″	16.25″	.063″	15.75″	2.25″	1.32″	2.19″	1.12″	12
16″	16.19″	23.50″	21.25″	18.50″	.063″	18.00″	2.50″	1.38″	2.44″	1.12″	16
18″	18.19″	25.00″	22.75″	21.00″	.063″	19.88″	2.69″	1.50″	2.63″	1.25″	16
20″	20.19″	27.50″	25.00″	23.00″	.063″	22.00″	2.88″	1.63″	2.83″	1.25″	20
22″	22.19″	29.50″	27.25″	25.25″	.063″	24.25″	3.13″	1.75″	3.07″	1.38″	20
24″	24.19″	32.00″	29.50″	27.25″	.063″	26.12″	3.25″	1.82″	3.19″	1.38″	20

THREADED CLASS 300

Threaded flange dimensions class 300 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″	0.93″	3.75″	2.62″	1.38″	.063″	1.50″	0.88″	0.50″	0.82″	0.62″	4
3/4″	1.14″	4.62″	3.25″	1.69″	.063″	1.88″	1.00″	.056″	0.94″	0.75″	4
1″	1.41″	4.88″	3.50″	2.00″	.063″	2.12″	1.06″	0.63″	1.00″	0.75″	4
1-1/4″	1.75″	5.25″	3.88″	2.50″	.063″	2.50″	1.06″	0.69″	1.00″	0.75″	4
1-1/2″	1.99″	6.12″	4.50″	2.88″	.063″	2.75″	1.19″	0.75″	1.13″	0.88″	4
2″	2.50″	6.50″	5.00″	3.62″	.063″	3.31″	1.31″	0.82″	1.25″	0.75″	8
2-1/2″	3.00″	7.50″	5.88″	4.12″	.063″	3.94″	1.50″	0.94″	1.44″	0.88″	8
3″	3.63″	8.25″	6.62″	5.00″	.063″	4.62″	1.69″	1.06″	1.63″	0.88″	8
3-1/2″	4.13″	9.00″	7.25″	5.50″	.063″	5.25″	1.75″	1.13″	1.69″	0.88″	8
4″	4.63″	10.00″	7.88″	6.19″	.063″	5.75″	1.88″	1.19″	1.82″	0.88″	8
5″	5.69″	11.00″	9.25″	7.31″	.063″	7.00″	2.00″	1.32″	1.94″	0.88″	8
6″	6.75″	12.50″	10.62″	8.50″	.063″	8.12″	2.06″	1.38″	2.00″	0.88″	12
8″	8.75″	15.00″	13.00″	10.62″	.063″	10.25″	2.44″	1.56″	2.38″	1.00″	12
10″	10.88″	17.50″	15.25″	12.75″	.063″	12.62″	2.62″	1.82″	2.56″	1.12″	16
12″	12.94″	20.50″	17.75″	15.00″	.063″	14.75″	2.88″	1.94″	2.82″	1.25″	16
14″	14.19″	23.00″	20.25″	16.25″	.063″	16.75″	3.00″	2.06″	2.94″	1.25″	20
16″	16.19″	25.50″	22.50″	18.50″	.063″	19.00″	3.25″	2.19″	3.19″	1.38″	20
18″	18.19″	28.00″	24.75″	21.00″	.063″	21.00″	3.50″	2.32″	3.44″	1.38″	24
20″	20.19″	30.50″	27.00″	23.00″	.063″	23.12″	3.75″	2.44″	3.69″	1.38″	24
22″	22.19″	33.00″	29.25″	25.25″	.063″	25.25″	4.00″	2.57″	3.94″	1.63″	24
24″	24.19″	36.00″	32.00″	27.25″	.063″	27.62″	4.19″	2.69″	4.13″	1.62″	24

THREADED CLASS 400

Threaded flange dimensions class 400 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″	0.93″	3.75″	2.62″	0.12″	.250″	1.50″	1.13″	0.56″	0.88″	0.62″	4
3/4″	1.14″	4.62″	3.25″	0.12″	.250″	1.88″	1.25″	0.62″	1.00″	0.75″	4
1″	1.41″	4.88″	3.50″	0.12″	.250″	2.12″	1.31″	0.69″	1.06″	0.75″	4
1-1/4″	1.75″	5.25″	3.88″	0.19″	.250″	2.50″	1.37″	0.81″	1.12″	0.75″	4
1-1/2″	1.99″	6.12″	4.50″	0.25″	.250″	2.75″	1.50″	0.88″	1.25″	0.88″	4
2″	2.50″	6.50″	5.00″	0.31″	.250″	3.31″	1.69″	1.00″	1.44″	0.75″	8
2-1/2″	3.00″	7.50″	5.88″	0.31″	.250″	3.94″	1.87″	1.12″	1.62″	0.88″	8
3″	3.63″	8.25″	6.62″	0.38″	.250″	4.62″	2.06″	1.25″	1.81″	0.88″	8
3-1/2″	4.13″	9.00″	7.25″	0.38″	.250″	5.25″	2.19″	1.38″	1.94″	1.00″	8
4″	4.63″	10.00″	7.88″	0.44″	.250″	5.75″	2.25″	1.38″	2.00″	1.00″	8
5″	5.69″	11.00″	9.25″	0.44″	.250″	7.00″	2.37″	1.50″	2.12″	1.00″	8
6″	6.75″	12.50″	10.62″	0.50″	.250″	8.12″	2.50″	1.62″	2.25″	1.00″	12
8″	8.75″	15.00″	13.00″	0.50″	.250″	10.25″	2.94″	1.88″	2.69″	1.12″	12
10″	10.88″	17.50″	15.25″	0.50″	.250″	12.62″	3.13″	2.12″	2.88″	1.25″	16
12″	12.94″	20.50″	17.75″	0.50″	.250″	14.75″	3.37″	2.25″	3.12″	1.38″	16
14″	14.19″	23.00″	20.25″	0.50″	.250″	16.75″	3.56″	2.38″	3.31″	1.38″	20
16″	16.19″	25.50″	22.50″	0.50″	.250″	19.00″	3.94″	2.50″	3.69″	1.50″	20
18″	18.19″	28.00″	24.75″	0.50″	.250″	21.00″	4.13″	2.62″	3.88″	1.50″	24
20″	20.19″	30.50″	27.00″	0.50″	.250″	23.12″	4.25″	2.75″	4.00″	1.62″	24
22″	22.19″	33.00″	29.25″	0.50″	.250″	25.25″	4.50″	2.88″	4.25″	1.75″	24
24″	24.19″	36.00″	32.00″	0.50″	.250″	27.62″	4.75″	3.00″	4.50″	1.88″	24

THREADED CLASS 600

Threaded flange dimensions class 600 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″	0.93″	3.75″	2.62″	1.38″	.250″	1.50″	1.13″	0.56″	0.88″	0.62″	4
3/4″	1.14″	4.62″	3.25″	1.69″	.250″	1.88″	1.25″	0.62″	1.00″	0.75″	4
1″	1.41″	4.88″	3.50″	2.00″	.250″	2.12″	1.31″	0.69″	1.06″	0.75″	4
1-1/4″	1.75″	5.25″	3.88″	2.50″	.250″	2.50″	1.37″	0.81″	1.12″	0.75″	4
1-1/2″	1.99″	6.12″	4.50″	2.88″	.250″	2.75″	1.50″	0.88″	1.25″	0.88″	4
2″	2.50″	6.50″	5.00″	3.62″	.250″	3.31″	1.69″	1.00″	1.44″	0.75″	8
2-1/2″	3.00″	7.50″	5.88″	4.12″	.250″	3.94″	1.87″	1.12″	1.62″	0.88″	8

THREADED CLASS 900

Threaded flange dimensions class 900 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″	0.93″	4.75″	3.25″	1.38″	.250″	1.50″	1.50″	0.88″	1.25″	0.88″	4
3/4″	1.14″	5.13″	3.50″	1.69″	.250″	1.75″	1.63″	1.00″	1.38″	0.88″	4
1″	1.41″	5.88″	4.00″	2.00″	.250″	2.06″	1.88″	1.13″	1.63″	1.00″	4
1-1/4″	1.75″	6.25″	4.38″	2.50″	.250″	2.50″	1.88″	1.13″	1.63″	1.00″	4
1-1/2″	1.99″	7.00″	4.88″	2.88″	.250″	2.75″	2.00″	1.25″	1.75″	1.13″	4
2″	2.50″	8.50″	6.50″	3.63″	.250″	4.13″	2.50″	1.50″	2.25″	1.00″	8
2-1/2″	3.00″	9.63″	7.50″	4.13″	.250″	4.88″	2.75″	1.63″	2.50″	1.13″	8
3″	3.63″	9.50″	7.50″	5.00″	.250″	5.00″	2.38″	1.50″	2.13″	1.00″	8
4″	4.63″	11.50″	9.25″	6.19″	.250″	6.25″	3.00″	1.75″	2.75″	1.25″	8
5″	5.69″	13.75″	11.00″	7.31″	.250″	7.50″	3.38″	3.00″	3.13″	1.38″	8
6″	6.75″	15.00″	12.50″	8.50″	.250″	9.25″	3.63″	2.19″	3.38″	1.25″	12
8″	8.75″	18.50″	15.50″	10.63″	.250″	11.75″	4.25″	2.50″	4.00″	1.50″	12
10″	10.88″	21.50″	18.50″	12.75″	.250″	14.50″	4.50″	2.75″	4.25″	1.50″	16
12″	12.94″	24.00″	21.00″	15.00″	.250″	16.50″	4.88″	3.13″	4.63″	1.50″	20
14″	14.19″	25.25″	22.00″	16.25″	.250″	17.75″	5.38″	3.38″	5.13″	1.63″	20
16″	16.19″	27.75″	24.25″	18.50″	.250″	20.00″	5.50″	3.50″	5.25″	1.75″	20
18″	18.19″	31.00″	27.00″	21.00″	.250″	22.25″	6.25″	4.00″	6.00″	2.00″	20
20″	20.19″	33.75″	29.50″	23.00″	.250″	24.50″	6.50″	4.25″	6.25″	2.13″	20
24″	24.19″	41.00″	35.50″	27.25″	.250″	29.50″	8.25″	5.50″	8.00″	2.63″	20

THREADED CLASS 1500

Threaded 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″	0.93″	4.75″	3.25″	1.38″	.250″	1.50″	1.50″	0.88″	1.25″	0.88″	4
3/4″	1.14″	5.13″	3.50″	1.69″	.250″	1.75″	1.63″	1.00″	1.38″	0.88″	4
1″	1.41″	5.88″	4.00″	2.00″	.250″	2.06″	1.88″	1.13″	1.63″	1.00″	4
1-1/4″	1.75″	6.25″	4.38″	2.50″	.250″	2.50″	1.88″	1.13″	1.63″	1.00″	4
1-1/2″	1.99″	7.00″	4.88″	2.88″	.250″	2.75″	2.00″	1.25″	1.75″	1.13″	4
2″	2.50″	8.50″	6.50″	3.63″	.250″	4.13″	2.50″	1.50″	2.25″	1.00″	8
2-1/2″	3.00″	9.63″	7.50″	4.13″	.250″	4.88″	2.75″	1.63″	2.50″	1.13″	8

THREADED CLASS 2500

Threaded flange dimensions class 2500 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″	0.93″	5.25″	3.50″	1.38″	.250″	1.69″	1.81″	1.19″	1.56″	0.88″	4
3/4″	1.14″	5.50″	3.75″	1.69″	.250″	2.00″	1.94″	1.25″	1.69″	0.88″	4
1″	1.41″	6.25″	4.25″	2.00″	.250″	2.25″	2.13″	1.38″	1.88″	1.00″	4
1-1/4″	1.75″	7.25″	5.13″	2.50″	.250″	2.88″	2.31″	1.50″	2.06″	1.13″	4
1-1/2″	1.99″	8.00″	5.75″	2.88″	.250″	3.13″	2.63″	1.75″	2.38″	1.25″	4
2″	2.50″	9.25″	6.75″	3.63″	.250″	3.75″	3.00″	2.00″	2.75″	1.13″	8
2-1/2″	3.00″	10.50″	7.75″	4.13″	.250″	4.50″	3.38″	2.25″	3.13″	1.25″	8

THREADED FLANGE DIMENSIONS IN MILLIMETERS

THREADED CLASS 150

Threaded flange dimensions class 150 in millimeters (ASME B16.5)

Size inch	D mm	X mm	G mm	t mm	T2 mm	Q mm
1/2	89	30.2	35.1	11.2	15.7	15.7
3/4	99	38.1	42.9	12.7	15.7	15.7
1	108	49.3	50.8	14.2	17.5	17.5
1¼	117	58.7	63.5	15.7	20.6	20.6
1½	127	65.0	73.2	17.5	22.4	22.4
2	152	77.7	91.9	19.1	25.4	25.4
2½	178	90.4	104.6	22.4	28.4	28.4
3	191	108.0	127.0	23.9	30.2	30.2
3½	216	122.2	139.7	23.9	31.8	31.8
4	229	134.9	157.2	23.9	33.3	33.3
5	254	163.6	185.7	23.9	36.6	36.6
6	279	192.0	215.9	25.4	39.6	39.6
8	343	246.1	269.7	28.4	44.5	44.5
10	406	304.8	323.9	30.2	49.3	49.3
12	483	365.3	381.0	31.8	55.6	55.6
14	533	400.1	412.8	35.1	57.2	57.2
16	597	457.2	469.9	36.6	63.5	63.5
18	635	505.0	533.4	39.6	68.3	68.3
20	699	558.8	584.2	42.9	73.2	73.2
24	813	663.4	692.2	47.8	82.6	82.6

Size	Bolts Drilling			Bolting Requirements
inch	Bolt circle Diameter mm	Holes #	Holes Dia. mm	Bolt Dia. inch.	Length FF Flange	Length RF Flange	Length RTJ Flange
1/2	60.5	4	15.7	1/2	50.8	57.2	–
3/4	69.9	4	15.7	1/2	50.8	63.5	–
1	79.2	4	15.7	1/2	57.2	63.5	76.2
1¼	88.9	4	15.7	1/2	57.2	69.9	82.6
1½	98.6	4	15.7	1/2	63.5	69.9	82.6
2	120.7	4	19.1	5/8	69.9	82.6	95.3
2½	139.7	4	19.1	5/8	76.2	88.9	101.6
3	152.4	4	19.1	5/8	76.2	88.9	101.6
3½	177.8	8	19.1	5/8	76.2	88.9	101.6
4	190.5	8	19.1	5/8	76.2	88.9	101.6
5	215.9	8	22.4	3/4	82.6	95.3	108.0
6	241.3	8	22.4	3/4	82.6	101.6	114.3
8	298.5	8	22.4	3/4	88.9	108.0	120.7
10	362.0	12	25.4	7/8	101.6	114.3	127.0
12	431.8	12	25.4	7/8	101.6	120.7	133.4
14	476.3	12	28.4	1	114.3	133.4	146.1
16	539.8	16	28.4	1	114.3	133.4	146.1
18	577.9	16	31.8	11/8	127.0	146.1	158.8
20	635.0	20	31.8	11/8	139.7	158.8	171.5
24	749.3	20	35.1	1¼	152.4	171.5	184.2

THREADED CLASS 300

Threaded flange dimensions class 300 in millimeters (ASME B16.5)

Size inch	D mm	X mm	G mm	t mm	B mm	T2 mm	Q mm
1/2	95	38.1	35.1	14.2	23.6	22.4	15.7
3/4	117	47.8	42.9	15.7	29.0	25.4	15.7
1	124	53.8	50.8	17.5	35.8	26.9	17.5
1¼	133	63.5	63.5	19.1	44.5	26.9	20.6
1½	155	69.9	73.2	20.6	50.5	30.2	22.4
2	165	84.1	91.9	22.4	63.5	33.3	28.4
2½	191	100.1	104.6	25.4	76.2	38.1	31.8
3	210	117.3	127.0	28.4	92.2	42.9	31.8
3½	229	133.4	139.7	30.2	104.9	44.5	36.6
4	254	146.1	157.2	31.8	117.6	47.8	36.6
5	279	177.8	185.7	35.1	144.5	50.8	42.9
6	318	206.2	215.9	36.6	171.5	52.3	46.0
8	381	260.4	269.7	41.1	222.3	62.0	50.8
10	445	320.5	323.9	47.8	276.4	66.5	55.6
12	521	374.7	381.0	50.8	328.7	73.2	60.5
14	584	425.5	412.8	63.8	360.4	76.2	63.5
16	648	482.6	469.9	57.2	411.2	82.6	68.3
18	711	533.4	533.4	60.5	462.0	88.9	69.9
20	775	587.2	584.2	63.5	512.8	95.3	73.2
24	914	701.5	692.2	69.9	614.4	106.4	82.6

Size	Bolts Drilling			Bolting Requirements
inch	Bolt circle Diameter mm	Holes #	Holes Dia. mm	Bolt Dia. inch.	Length FF Flange	Length RF Flange	Length RTJ Flange
1/2	66.5	4	15.7	1/2	57.2	63.5	76.2
3/4	82.6	4	19.1	5/8	63.5	76.2	88.9
1	88.9	4	19.1	5/8	63.5	76.2	88.9
1¼	98.6	4	19.1	5/8	69.9	82.6	95.3
1½	114.3	4	22.4	3/4	76.2	88.9	101.6
2	127.0	8	19.1	5/8	76.2	88.9	101.6
2½	149.4	8	22.4	3/4	82.6	101.6	114.3
3	168.1	8	22.4	3/4	88.9	108.0	120.7
3½	184.2	8	22.4	3/4	95.3	108.0	127.0
4	200.2	8	22.4	3/4	95.3	114.3	127.0
5	235.0	8	22.4	3/4	108.0	120.7	133.4
6	269.7	12	22.4	3/4	108.0	120.7	139.7
8	330.2	12	25.4	7/8	120.7	139.7	152.4
10	387.4	16	28.4	1	139.7	158.8	171.5
12	450.9	16	31.8	11/8	146.1	171.5	184.2
14	514.4	20	31.8	11/8	158.8	177.8	190.5
16	571.5	20	35.1	1¼	165.1	190.5	203.2
18	628.7	24	35.1	1¼	171.5	196.9	209.6
20	685.8	24	35.1	1¼	184.2	203.2	222.3
24	812.8	24	41.1	1½	203.2	228.6	254.0

THREADED CLASS 600

Threaded flange dimensions class 600 in millimeters (ASME B16.5)

Size inch	D mm	X mm	G mm	t mm	B2 mm	T2 mm	Q mm
1/2	95	38.1	35.1	14.2	22.4	22.4	15.7
3/4	117	47.8	42.9	15.7	27.7	25.4	15.7
1	124	53.8	50.8	17.5	34.5	26.9	17.5
1¼	133	63.5	63.5	20.6	43.2	28.4	20.6
1½	155	69.9	73.2	22.4	49.5	31.8	22.4
2	165	84.1	91.9	25.4	62.0	36.6	28.4
2½	191	100.1	104.6	28.4	74.7	41.1	31.8
3	210	117.3	127.0	31.8	90.7	46.0	35.1
3½	229	133.4	139.7	35.1	103.4	49.3	39.6
4	273	152.4	157.2	38.1	116.1	53.8	41.1
5	330	189.0	185.7	44.5	143.8	60.5	47.8
6	356	222.3	215.9	47.8	170.7	66.5	50.8
8	419	273.1	269.7	55.6	221.5	76.2	57.2
10	508	342.9	323.9	63.5	276.4	85.9	65.0
12	559	400.1	381.0	66.5	327.2	91.9	69.9
14	603	431.8	412.8	69.9	359.2	93.7	73.2
16	686	495.3	469.9	76.2	410.5	106.4	77.7
18	743	546.1	533.4	82.6	461.8	117.3	79.2
20	813	609.6	584.2	88.9	513.1	127.0	82.6
24	940	717.6	692.2	101.6	616.0	139.7	91.9

Size	Bolts Drilling			Bolting Requirements
inch	Bolt circle Diameter mm	Holes #	Holes Dia. mm	Bolt Dia. inch.	Length FF Flange	Length RF Flange	Length RTJ Flange
1/2	66.5	4	15.7	1/2	76.2	69.9	76.2
3/4	82.6	4	19.1	5/8	88.9	82.6	88.9
1	88.9	4	19.1	5/8	88.9	82.6	88.9
1¼	98.6	4	19.1	5/8	95.3	88.9	95.3
1½	114.3	4	22.4	3/4	108.0	101.6	108.0
2	127.0	8	19.1	5/8	108.0	101.6	108.0
2½	149.4	8	22.4	3/4	120.7	114.3	120.7
3	168.1	8	22.4	3/4	127.0	120.7	127.0
3½	184.2	8	25.4	7/8	139.7	133.4	139.7
4	215.9	8	25.4	7/8	146.1	139.7	146.1
5	266.7	8	28.4	1	165.1	158.8	165.1
6	292.1	12	28.4	1	171.5	165.1	171.5
8	349.3	12	31.8	11/8	190.5	184.2	196.9
10	431.8	16	35.1	1¼	215.9	209.6	215.9
12	489.0	20	35.1	1¼	222.3	215.9	222.3
14	527.1	20	38.1	13/8	235.0	228.6	235.0
16	603.3	20	41.1	1½	254.0	247.7	254.0
18	654.1	20	44.5	15/8	273.1	266.7	273.1
20	723.9	24	44.5	15/8	285.8	279.4	292.1
24	838.2	24	50.8	17/8	330.2	323.9	336.6

THREADED CLASS 900

Threaded flange dimensions class 900 in millimeters (ASME B16.5)

Size inch	D mm	X mm	G mm	t mm	B mm	T2 mm	Q mm
1/2	121	38.1	35.1	22.4	23.6	31.8	22.4
3/4	130	44.5	42.9	25.4	29.0	35.1	25.4
1	149	52.3	50.8	28.4	35.8	41.1	28.4
1¼	159	63.5	63.5	28.4	44.5	41.1	30.2
1½	178	69.9	73.2	31.8	50.5	44.5	31.8
2	216	104.6	91.9	38.1	63.5	57.2	38.1
2½	244	124.0	104.6	41.1	76.2	63.5	47.8
3	241	127.0	127.0	38.1	92.2	53.8	41.1
4	292	158.8	157.2	44.5	117.6	69.9	47.8
5	349	190.5	185.7	50.8	144.5	79.2	53.8
6	381	235.0	215.9	55.6	171.5	85.9	57.2
8	470	298.5	269.7	63.5	222.3	101.6	63.5
10	546	368.3	323.9	69.9	276.4	108.0	71.4
12	610	419.1	381.0	79.2	328.7	117.3	76.2
14	641	450.9	412.8	85.9	360.4	130.0	82.6
16	705	508.0	469.9	88.9	411.2	133.4	85.9
18	787	565.2	533.4	101.6	462.0	152.4	88.9
20	857	622.3	584.2	108.0	512.8	158.8	91.9
24	1041	749.3	692.2	139.7	614.4	203.2	101.6

Size	Bolts Drilling			Bolting Requirements
inch	Bolt circle Diameter mm	Holes #	Holes Dia. mm	Bolt Dia. inch.	Length FF Flange	Length RF Flange	Length RTJ Flange
1/2	82.6	4	22.4	3/4	108.0	101.6	108.0
3/4	88.9	4	22.4	3/4	114.3	108.0	114.3
1	101.6	4	25.4	7/8	127.0	120.7	127.0
1¼	111.3	4	25.4	7/8	127.0	120.7	127.0
1½	124.0	4	28.4	1	139.7	133.4	139.7
2	165.1	8	25.4	7/8	146.1	139.7	146.1
2½	190.5	8	28.4	1	158.8	152.4	158.8
3	190.5	8	25.4	7/8	146.1	139.7	146.1
4	235.0	8	31.8	11/8	171.5	165.1	171.5
5	279.4	8	35.1	1¼	190.5	184.2	190.5
6	317.5	12	31.8	11/8	190.5	184.2	196.9
8	393.7	12	38.1	13/8	222.3	215.9	222.3
10	469.9	16	38.1	13/8	235.0	228.6	235.0
12	533.4	20	38.1	13/8	254.0	247.7	254.0
14	558.8	20	41.1	1½	273.1	266.7	292.1
16	616.0	20	44.5	15/8	285.8	279.4	298.5
18	685.8	20	50.8	17/8	323.9	317.5	333.6
20	749.3	20	53.8	2	349.3	342.9	362.0
24	901.7	20	66.5	1½	438.2	431.8	457.2