Threaded Flange

Threaded pipe flanges are typically provided with a raised face, flat face, or RTJ facing. When a raised face is necessary for threaded pipe flanges, the standard height is 1/16″ for threaded pipe flanges under 400#. For threaded pipe flanges of 400# and up, the standard threaded pipe flange raised face height is 1/4″.

 

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Categories: ,

Standard: ASTM A105, ASTM A182

Material: Carbon Steel, Stainless Steel, Alloy Steel

Size Range: 1/2”, 1”, 2”, 3”, 4” to 24”

Pressure Class: Class 150 to 2500

Face: Raised face (RF), Ring type joint (RTJ)

Sizes1/2”-60” NPS (DN15-DN3000), SCH10,STD,SCH40,SCH60,XS,SCH80,SCH120,SCH160,XXS
FacingRF/ FM/ M/ T G/ RF / FF / RTJ        Class  Class150-Class2500
TypesSocket Weld, Slip On, Blind,Screwed, Ring Joint, Weld Neck, Long Weld Neck

CLASS 150 According to ASTM A/SA-105; ANSI B16.5
Nominal

Pipe

Size

 Outside

Diam. of

Flange (O)

 Thick.

of

Flange (C)

 Diam.

of

Raised Face (R)

 Diam.

of Hub

at Base (X)

 Length

thru Hub

(Y)

 Min.

Thread

Length

(T)

 No. of

Holes

 Diam. of

Holes

 Diam. of

Bolts

 Diam.

of Bolt

Circle

 Approx.

Weight

(in Pounds)
½ 3.5 0.44 1.38 1.19 0.62 0.62 4 0.62 0.5 2.38 1
¾ 3.88 0.5 1.69 1.5 0.62 0.62 4 0.62 0.5 2.75 2
1 4.25 0.56 2 1.94 0.69 0.69 4 0.62 0.5 3.12 2
1 ¼ 4.62 0.62 2.5 2.31 0.81 0.81 4 0.62 0.5 3.5 3
1 ½ 5 0.69 2.88 2.56 0.88 0.88 4 0.62 0.5 3.88 3
2 6 0.75 3.62 3.06 1 1 4 0.75 0.62 4.75 5
2 ½ 7 0.88 4.12 3.56 1.12 1.12 4 0.75 0.62 5.5 7
3 7.5 0.94 5 4.25 1.19 1.19 4 0.75 0.62 6 8
3 ½ 8.5 0.94 5.5 4.81 1.25 1.25 8 0.75 0.62 7 11
4 9 0.94 6.19 5.31 1.31 1.31 8 0.75 0.62 7.5 13
5 10 0.94 7.31 6.44 1.44 1.44 8 0.88 0.75 8.5 15
6 11 1 8.5 7.56 1.56 1.56 8 0.88 0.75 9.5 19
8 13.5 1.12 10.62 9.69 1.75 1.75 8 0.88 0.75 11.75 30
10 16 1.19 12.75 12 1.94 1.94 12 1 0.88 14.25 43
12 19 1.25 15 14.38 2.19 2.19 12 1 0.88 17 64
14 21 1.38 16.25 15.75 2.25 2.25 12 1.12 1 18.75 90
16 23.5 1.44 18.5 18 2.5 2.5 16 1.12 1 21.25 98
18 25 1.56 21 19.88 2.69 2.69 16 1.25 1.13 22.75 130
20 27.5 1.69 23 22 2.88 2.88 20 1.25 1.12 25 165
24 32 1.88 27.25 26.12 3.25 3.25 20 1.38 1.25 29.5 220

 

 

CLASS 300 According to ASTM A/SA-105; ANSI B16.5
Nominal

Pipe

Size

 Outside

Diam. of

Flange (O)

 Thick.

of

Flange (C)

 Diam.

of

Raised Face

(R)

 Diam.

of Hub

at Base

(X)

 Length

thru Hub

(Y)

 Min.

Thread

Length

(T)

 Min.

Counter Bore

(Q)

 No. of

Holes

 Diam. of

Holes

 Diam.

of Bolts

 Diam.

of Bolt

Circle

 Approx.

Weight

(in Pounds)
1/2 3.75 0.56 1.38 1.5 0.88 0.62 0.93 4 0.62 0.5 2.62 2
3/4 4.62 0.62 1.69 1.88 1 0.62 1.14 4 0.75 0.62 3.25 3
1 4.88 0.69 2 2.12 1.06 0.69 1.41 4 0.75 0.62 3.5 3
1 1/4 5.25 0.75 2.5 2.5 1.06 0.81 1.75 4 0.75 0.62 3.88 4
1 1/2 6.12 0.81 2.88 2.75 1.19 0.88 1.99 4 0.88 0.75 4.5 6
2 6.5 0.88 3.62 3.31 1.31 1.12 2.5 8 0.75 0.62 5 7
2 1/2 7.5 1 4.12 3.94 1.5 1.25 3 8 0.88 0.75 5.88 10
3 8.25 1.12 5 4.62 1.69 1.25 3.63 8 0.88 0.75 6.62 13
3 1/2 9 1.19 5.5 5.25 1.75 1.44 4.13 8 0.88 0.75 7.25 17
4 10 1.25 6.19 5.75 1.88 1.44 4.63 8 0.88 0.75 7.88 22
5 11 1.38 7.31 7 2 1.69 5.69 8 0.88 0.75 9.25 28
6 12.5 1.44 8.5 8.12 2.06 1.81 6.75 12 0.88 0.75 10.62 39
8 15 1.62 10.62 10.25 2.44 2 8.75 12 1 0.88 13 58
10 17.5 1.88 12.75 12.62 2.62 2.19 10.88 16 1.12 1 15.25 81
12 20.5 2 15 14.75 2.88 2.38 12.94 16 1.25 1.12 17.75 115
14 23 2.12 16.25 16.75 3 2.5 14.19 20 1.25 1.12 20.25 165
16 25.5 2.25 18.5 19 3.25 2.69 16.19 20 1.38 1.25 22.5 190
18 28 2.38 21 21 3.5 2.75 18.19 24 1.38 1.25 24.75 250
20 30.5 2.5 23 23.12 3.75 2.88 20.19 24 1.38 1.25 27 315
24 36 2.75 27.25 27.62 4.19 3.25 24.19 24 1.62 1.5 32 475

 

 

CLASS 600 According to ASTM A/SA-105; ANSI B16.5
Nominal

Pipe

Size

 Outside

Diam. of

Flange (O)

 Thick.

of

Flange

(C)

 Diam.

of

Raised Face

(R)

 Diam.

of Hub

at Base (X)

 Length

thru Hub

(Y)

 Min.

Thread

Length

(T)

 Min.

Counter

Bore

(Q)

 No. of

Holes

 Diam. of

Holes

 Diam. of

Bolts

 Diam. of

Bolt Circle

 Approx.

Weight

(in Pounds)
1/2 3.75 0.56 1.38 1.5 0.88 0.62 0.93 4 0.62 0.5 2.62 2
3/4 4.62 0.62 1.69 1.88 1 0.62 1.14 4 0.75 0.62 3.25 3
1 4.88 0.69 2 2.12 1.06 0.69 1.41 4 0.75 0.62 3.5 4
1 1/4 5.25 0.81 2.5 2.5 1.12 0.81 1.75 4 0.75 0.62 3.88 5
1 1/2 6.12 0.88 2.88 2.75 1.25 0.88 1.99 4 0.88 0.75 4.5 7
2 6.5 1 3.62 3.31 1.44 1.12 2.5 8 0.75 0.62 5 9
2 1/2 7.5 1.12 4.12 3.94 1.62 1.25 3 8 0.88 0.75 5.88 13
3 8.25 1.25 5 4.62 1.81 1.38 3.63 8 0.88 0.75 6.62 16
3 1/2 9 1.38 5.5 5.25 1.94 1.56 4.13 8 1 0.88 7.25 21
4 10.75 1.5 6.19 6 2.12 1.62 4.63 8 1 0.88 8.5 37
5 13 1.75 7.31 7.44 2.38 1.88 5.69 8 1.12 1 10.5 63
6 14 1.88 8.5 8.75 2.62 2 6.75 12 1.12 1 11.5 80
8 16.5 2.19 10.62 10.75 3 2.25 8.75 12 1.25 1.12 13.75 115
10 20 2.5 12.75 13.5 3.38 2.56 10.88 16 1.38 1.25 17 170
12 22 2.62 15 15.75 3.62 2.75 12.94 20 1.38 1.25 19.25 200
14 23.75 2.75 16.25 17 3.69 2.88 14.19 20 1.5 1.38 20.75 230
16 27 3 18.5 19.5 4.19 3.06 16.19 20 1.62 1.5 23.75 330
18 29.25 3.25 21 21.5 4.62 3.12 18.19 20 1.75 1.63 25.75 400
20 32 3.5 23 24 5 3.25 20.19 24 1.75 1.62 28.5 510
24 37 4 27.25 28.25 5.5 3.62 24.19 24 2 1.88 33 730

 

 

CLASS 900 According to ASTM A/SA-105; ANSI B16.5
Nominal

Pipe

Size

 Outside

Diam. of

Flange (O)

 Thick.

of

Flange

(C)

 Diam.

of

Raised Face

(R)

 Diam.

of Hub

at Base

(X)

 Length

thru Hub (Y)

 Min.

Thread

Length

(T)

 Min.

Counter

Bore

(Q)

 No. of

Holes

 Diam. of

Holes

 Diam. of

Bolts

 Diam. of

Bolt Circle

 Approx.

Weight

(in Pounds)
1/2 4.75 0.88 1.38 1.5 1.25 0.88 0.93 4 0.88 0.75 3.25 4
3/4 5.12 1 1.69 1.75 1.38 1 1.14 4 0.88 0.75 3.5 5
1 5.88 1.12 2 2.06 1.62 1.12 1.41 4 1 0.88 4 8
1 1/4 6.25 1.12 2.5 2.5 1.62 1.19 1.75 4 1 0.88 4.38 9
1 1/2 7 1.25 2.88 2.75 1.75 1.25 1.99 4 1.12 1 4.88 12
2 8.5 1.5 3.62 4.12 2.25 1.5 2.5 8 1 0.88 6.5 25
2 1/2 9.62 1.62 4.12 4.88 2.5 1.88 3 8 1.12 1 7.5 36
3 9.5 1.5 5 5 2.12 1.62 3.63 8 1 0.88 7.5 26
4 11.5 1.75 6.19 6.25 2.75 1.88 4.63 8 1.25 1.12 9.25 53
5 13.75 2 7.31 7.5 3.12 2.12 5.69 8 1.38 1.25 11 83
6 15 2.19 8.5 9.25 3.38 2.25 6.75 12 1.25 1.12 12.5 110
8 18.5 2.5 10.62 11.75 4.00 2.50 8.75 12 1.5 1.38 15.5 170
10 21.5 2.75 12.75 14.5 4.25 2.81 10.88 16 1.5 1.38 18.5 245
12 24 3.12 15 16.5 4.62 3 12.94 20 1.5 1.38 21 325
14 25.25 3.38 16.25 17.75 5.12 3.25 14.19 20 1.62 1.5 22 400
16 27.75 3.5 18.5 20 5.25 3.38 16.19 20 1.75 1.63 24.25 425
18 31 4 21 22.25 6 3.5 18.19 20 2 1.88 27 600
20 33.75 4.25 23 24.5 6.25 3.62 20.19 20 2.12 2 29.5 730
24 41 5.5 27.25 29.5 8 4 24.19 20 2.62 2.5 35.5 1400

 

 

CLASS 1500 According to ASTM A/SA-105; ANSI B16.5
Nominal

Pipe

Size

 Outside

Diam. of

Flange (O)

 Thick.

of

Flange

(C)

 Diam.

of

Raised Face

(R)

 Diam.

of Hub

at Base

(X)

 Length

thru Hub

(Y)

 Min.

Thread

Length

(T)

 Min.

Counter

Bore

(Q)

 No. of

Holes

 Diam. of

Holes

 Diam. of

Bolts

 Diam. of

Bolt Circle

 Approx.

Weight

(in Pounds)
1/2 4.75 0.88 1.38 1.5 1.25 0.88 0.93 4 0.88 0.75 3.25 4
3/4 5.12 1 1.69 1.75 1.38 1 1.14 4 0.88 0.75 3.5 5
1 5.88 1.12 2 2.06 1.62 1.12 1.41 4 1 0.88 4 8
1 1/4 6.25 1.12 2.5 2.5 1.62 1.19 1.75 4 1 0.88 4.38 9
1 1/2 7 1.25 2.88 2.75 1.75 1.25 1.99 4 1.12 1 4.88 12
2 8.5 1.5 3.62 4.12 2.25 1.5 2.5 8 1 0.88 6.5 25
2 1/2 9.62 1.62 4.12 4.88 2.5 1.88 3 8 1.12 1 7.5 36

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