PTFE ANSI Flanges

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PTFE Flange Gaskets Specification

  • Size : 25 NB to 1000 NB
  • Outer body : ASTM A 395 Gr 60-40-18
  • Flange Connection : ANSI B 16.5
  • Face to Face : ANSI B 16.10
  • Spark Test : 15 KVA
  • Hydro Test : at 29.8 kg/cm2
  • FEP- Max Temp : 180° C
  • PP Max Temp : 100° C
  • PFA Max Temp : 200° C
  • Connection Type / Flange Face Type: Ring Type Joint, Lap-Joint Face, Raised Face, Flat Face, Large Male-Female, Small Male-Female, Large Tongue & Groove, Small Tongue & Groove

 

PTFE Teflon Flange size

NOMINAL BORE
THICKNESS (X)
ØB
R/F 1
R/F 2
LINER THICKNESS
NB1
NB2
(MM)
(INCHES)
(MM)
(INCHES)
(MM)
(MM)
(MM)
(MM)
(MM)
40
1.5
25
1
35
127.0
73
51
5.0
50
2
25
1
35
152.4
92
51
5.0
50
2
40
1.5
35
152.4
92
73
5.0
65
2.5
25
1
35
177.8
105
51
5.0
65
2.5
40
1.5
35
177.8
105
73
5.0
65
2.5
50
2
35
177.8
105
92
5.0
80
3
25
1
45
190.5
127
51
5.0
80
3
40
1.5
45
190.5
127
73
5.0
80
3
50
2
45
190.5
127
92
5.0
100
4
25
1
45
228.6
157
51
5.0
100
4
40
1.5
45
228.6
157
73
5.0
100
4
50
2
45
228.6
157
92
5.0
100
4
80
3
45
228.6
157
127
5.0
125
5
25
1
45
254.0
186
51
5.0
125
5
40
1.5
45
254.0
186
73
5.0
125
5
50
2
45
254.0
186
92
5.0
125
5
80
3
45
254.0
186
127
5.0
125
5
100
4
45
254.0
186
157
5.0
150
6
25
1
54
279.4
216
51
5.0
150
6
40
1.5
54
279.4
216
73
5.0
150
6
50
2
54
279.4
216
92
5.0
150
6
80
3
54
279.4
216
127
5.0
150
6
100
4
54
279.4
216
157
5.0
200
8
25
1
54
342.9
270
51
5.0
200
8
40
1.5
54
342.9
270
73
5.0
200
8
50
2
54
342.9
270
92
5.0
200
8
80
3
54
342.9
270
127
5.0
200
8
100
4
54
342.9
270
157
5.0
200
8
150
6
54
342.9
270
216
5.0
250
10
25
1
54
406.4
324
51
4.5
250
10
40
1.5
54
406.4
324
73
4.5
250
10
50
2
54
406.4
324
92
4.5
250
10
80
3
54
406.4
324
127
4.5
250
10
100
4
54
406.4
324
157
4.5
250
10
150
6
54
406.4
324
216
4.5
250
10
200
8
54
406.4
324
270
4.5
300
12
25
1
54
482.6
381
51
4.5
300
12
40
1.5
54
482.6
381
73
4.5
300
12
50
2
54
482.6
381
92
4.5
300
12
80
3
54
482.6
381
127
4.5
300
12
100
4
54
482.6
381
157
4.5
300
12
150
6
54
482.6
381
216
4.5
300
12
200
8
54
482.6
381
270
4.5
300
12
250
10
54
482.6
381
324
4.5

 

ptfe ansi flange dimensions

Dimensions of ASME B16.5 – class 150 Lbs Flange
Drilling
Nominal Bore Dia.(D) Thick.(E) Dia.(F) Dia.(B) Dia.(A) Height1(H) Nbr Holes Dia.(C)
1/2″ 90 9.6 35.05 30 22.2 14 4 15.87 60.3
3/4″ 100 11.2 42.93 38 27.7 14 4 15.87 69.9
1″ 110 12.7 50.80 49 34.5 16 4 15.87 79.4
1 1/4″ 115 14.3 63.50 59 43.2 19 4 15.87 88.9
1 1/2″ 125 15.9 73.15 65 49.5 21 4 15.87 98.4
2″ 150 17.5 91.95 78 61.9 24 4 19.05 120.7
2 1/2″ 180 20.7 104.65 90 74.6 27 4 19.05 139.7
3″ 190 22.3 127.00 108 90.7 29 4 19.05 152.4
3 1/2″ 215 22.3 139.70 122 103.4 30 8 19.05 177.8
4″ 230 22.3 157.22 135 116.1 32 8 19.05 190.5
5″ 255 22.3 185.67 164 143.8 35 8 22.22 215.9
6″ 280 23.9 215.90 192 170.7 38 8 22.22 241.3
8″ 345 27.0 269.75 246 221.5 43 8 22.22 298.5
10″ 405 28.6 323.85 305 276.2 48 12 25.40 362.0
12″ 485 30.2 381.00 365 327.0 54 12 25.40 431.8
14″ 535 33.4 412.75 400 359.2 56 12 28.57 476.3
16″ 595 35.0 469.90 457 410.5 62 16 28.57 539.8
18″ 635 38.1 533.40 505 461.8 67 16 31.75 577.9
20″ 700 41.3 584.20 559 513.1 71 20 31.75 635.0
24″ 815 46.1 692.15 663 616.0 81 20 34.92 74
1,6mm raised face not included in the E & H dimensions

Dimensions of ASME B16.5 – class 300 Lbs Flange

Nominal Bore Dia.(D) Thick.(E) Dia.(F) Dia.(B) Dia.(A) Height1(H) Nbr Holes Dia.(C)
1/2″ 21.3 12.7 35.05 38 22.2 21 4 15.87 66.7
3/4″ 26.7 14.3 42.93 48 27.7 24 4 19.05 82.6
1″ 33.4 15.9 50.80 54 34.5 25 4 19.05 88.9
1 1/4″ 42.2 17.5 63.50 64 43.2 25 4 19.05 98.4
1 1/2″ 48.3 19.1 73.15 70 49.5 29 4 22.22 114.3
2″ 60.3 20.7 91.95 84 61.9 32 8 19.05 127.0
2 1/2″ 73.0 23.9 104.65 100 74.6 37 8 22.22 149.2
3″ 88.9 27.0 127.00 117 90.7 41 8 22.22 168.3
3 1/2″ 101.6 28.6 139.70 133 103.4 43 8 22.22 184.2
4″ 114.3 30.2 157.22 146 116.1 46 8 22.22 200.0
5″ 141.3 33.4 185.67 178 143.8 49 8 22.22 235.0
6″ 168.3 35.0 215.90 206 170.7 51 12 22.22 269.9
8″ 219.1 39.7 269.75 260 221.5 60 12 25.40 330.2
10″ 273.0 46.1 323.85 321 276.2 65 16 28.57 387.4
12″ 323.8 49.3 381.00 375 327.0 71 16 31.75 450.8
14″ 355.6 52.4 412.75 425 359.2 75 20 31.75 514.4
16″ 406.4 55.6 469.90 483 410.5 81 20 34.92 571.5
18″ 457.0 58.8 533.40 533 461.8 87 24 34.92 628.6
20″ 508.0 62.0 584.2td> 587 513.1 94 24 34.92 685.8
24″ 610.0 68.3 692.15 702 616.0 105 24 41.27 812.8
1,6mm raised face not included in the E & H dimensions

Dimensions of ASME B16.5 – class 600 Lbs Flange

Drilling
Nominal Bore Dia.(D) Thick.(E) Dia.(F) Dia.(B) Dia.(A) Height1(H) Nbr Holes Dia.(C)
1/2″ 21.3 14.3 35.05 38 22.2 22 4 15.87 66.7
3/4″ 26.7 15.9 42.93 48 27.7 25 4 19.05 82.6
1″ 33.4 17.5 50.80 54 34.5 27 4 19.05 88.9
1 1/4″ 42.2 20.7 63.50 64 43.2 29 4 19.05 98.4
1 1/2″ 48.3 22.3 73.15 70 49.5 32 4 22.22 114.3
2″ 60.3 25.4 91.95 84 61.9 37 8 19.05 127.0
2 1/2″ 73.0 28.6 104.65 100 74.6 41 8 22.22 149.2
3″ 88.9 31.8 127.00 117 90.7 46 8 22.22 168.3
3 1/2″ 101.6 35.0 139.70 133 103.4 49 8 25.40 184.2
4″ 114.3 38.1 157.22 152 116.1 54 8 25.40 215.9
5″ 141.3 44.5 185.67 189 143.8 60 8 28.57 266.7
6″ 168.3 47.7 215.90 222 170.7 67 12 28.57 292.1
8″ 219.1 55.6 269.75 273 221.5 76 12 31.75 349.2
10″ 273.0 63.5 325.85 343 276.2 86 16 34.92 431.8
12″ 323.8 66.7 381.00 400 327.0 92 20 34.92 489.0
14″ 355.6 69.9 412.75 432 359.2 94 20 38.10 527.0
16″ 406.4 76.2 469.90 495 410.5 106 20 41.27 603.2
18″ 457.0 82.6 533.40 546 461.8 117 20 44.45 654.0
20″ 508.0 88.9 584.20 610 513.1 127 24 44.45 723.9
24″ 610.0 101.6 692.15 718 616.0 140 24 50.80 838.2


PFA Flange Adapters Technical Data- Fluoropolymer Properties

Item Unit ASTM, Test Method, PTFE(4F) PFA PCTFE, (3F) PVDF, (2F) FEP, (4-6F) PEEK
ptfe ansi flange Physical Properties, Density D792 2.14~2.20 2.12~2.17 2.1~2.2 1.75~2.17 2.12~2.17 1.31
Melting Point oC 327 302~310 210~212 170 253~282 340
Tensile Strength Kg/cm2 D638 280~350 320 315~420 400~520 200~320

1142
Elongation % D638 200~400 280~300 80~250 100~300 250~330 20
Compression Strength Kg/cm2 D695 120 - 320~520 600 150
Impact Strength Kg*cm/cm D256 16.3 Not Damaged 13.6~14.7 19.6~21.8 Not Damaged Not Damaged
Hardness Rockwell Hardness D782 R25 - R75~95 R100~115 R25 R126
Hardness Shore Hardness D1706 D55 D60 D90 D80 D55 D85
Static Friction Coefficient - 0.05 - 0.25 0.10 .
Kinetic Friction Coefficient - 0.10 0.2 0.37 0.39 0.3 0.4
ptfe ansi flange Thermal Properties Heat Conductivity 10-4 cal/cm., sec.oC C117 5.9 6.2 4.7~5.3 3.0 6.0
Coefficient of Linear Expansion 10-5 /oC D696 9.9(23~66oC) 12(21~100oC) 4.5~7.0 8.5 8.3~10.5(-73~71oC)
Operating Temperature oC 260 260 150~180 150 200 300
ptfe ansi flange Electrical Properties Volume Resistibility .cm D257 >1018 >1018 12*1018 20*1014 >1018
Surface Resistibility D257 >1016 >1016 - - >1016 >1013
Insulation Resistibility 1/8” thick, Kv/mm D149 16~24 20~24 20~24 10.4 20~24 24
ptfe ansi flange Durability Chemical Resistance D543 Excellent Excellent Good Good Excellent Good
Flammability % D635 Non-Flammable Non-Flammable Non-Flammable Non-Flammable Flame Resistant
Permeability % D570 < 0.01 0.03 0.00 0.04 <0.01 0.10

 

Types of Fluoropolymers and Chemical Resistance Comparison


Category (Name)
Melting Point and Operating Temperature
Chemical Resistance
PTFE
m.p. 327oC, W.TEMP(MAX) 260oC

Excellent chemical stability;, PTFE don't interact with the vast majority of chemicals and solvents., However, it is vulnerable to molten alkali metal., PTFE also interacts with fluorine gas and fluorine compounds, such as CIF3. OF2, under high temperature and high pressure environments
ETFE
m.p. 270oC, W.TEMP(MAX) 150oC

Similar to the chemical resistance of PTFE, but easily corroded by nitric acids. Has chemical resistance on par with PTFE, but easily corroded by certain chemicals such as nitric acid.
PCTFE
m.p. 327oC, W.TEMP(MAX) 260oC

Highly crystalline, high polymer material, with superior permeability properties.
PFA
m.p. 327oC, W.TEMP(MAX) 260oC

Similar to the chemical resistance of PTFE, with superior mechanical and sanitary properties.
FEP
m.p. 327oC, W.TEMP(MAX) 260oC
Similar to the chemical resistance of PTFE, but has slightly lower operating temperature.
PVDF
m.p. 327oC, W.TEMP(MAX) 170oC

Easily dissolved by fuming sulfuric acid, high temperature sulfuric acid, or caustic soda above 100oC; also bloats or dissolves when interacting with strong solvents such as aceton、ketone、DMA, or extremely alkalic primary amine such as n-butylamine.

 

teflon flange spacers Applications

  •  ptfe ansi flange uses in Petrochemical Refining Industry
  •    PTFE Flange Gaskets uses in Paper & Pulp Industry
  •   PTFE Teflon Flange uses in Chemical Industry
  •   PFA Flange Adapters uses in Power Generation Plants
  •   PTFE Flange uses in Oil & Gas Industry
  •   PTFE Line Reducing Flange uses in Pharma Industry

 

PTFE Flange Diagram

PTFE Flange Diagram

 

 

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