Flaretek® Elbow Adapter, FNPT
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NOTE! Flaretek fittings are specifically designed, tested and characterized to work together with specific Flaretek fitting components manufactured by Entegris. Customers assume the risk of connection integrity if Flaretek fittings, body and/or nut components are attached to components manufactured by third parties.
These fittings are specially designed to adapt to NPT components. Applications include:
- High-purity, corrosive chemical applications
- Solar, LED, Flat Panel Display
- Semiconductor applications
- Photolithography
- Bulk chemical delivery
- CMP
- Wet etch and clean
Specifications
FlareLock II Fitting Design
The patented FlareLock II fitting design (-II) combines the gripping power of a grooved tube, the security of a locking ferrule mechanism and the compact, leak-free design of the Flaretek fitting body. The fitting body, split locking ring and nut are all PFA material. A specific FlareLock II fitting groove tool is also available.
Dimension Notes:
* = PFA body with -1 (PVDF), -3 (PFA) or -6 (CPFA)
II = PFA body with FlareLock (-II) nuts
Part Number | Leg 1 | Leg 2 | Orifice | Dimension A | Dimension B |
FE4-2FN-* | 1/4" Flaretek | 1/8" FNPT | 0.13" (3.3 mm) | 1.77" (45.0 mm) | 0.81" (20.6 mm) |
FE4-2FN-II | 1/4" Flaretek | 1/8" FNPT | 0.13" (3.3 mm) | 1.77" (45.0 mm) | 0.81" (20.6 mm) |
FE4-4FN-* | 1/4" Flaretek | 1/4" FNPT | 0.13" (3.3 mm) | 1.77" (45.0 mm) | 0.94" (23.9 mm) |
FE4-4FN-II | 1/4" Flaretek | 1/4" FNPT | 0.13" (3.3 mm) | 1.77" (45.0 mm) | 0.94" (23.9 mm) |
FE6-4FN-* | 3/8" Flaretek | 1/4" FNPT | 0.25" (6.4 mm) | 1.89" (48.0 mm) | 0.94" (23.9 mm) |
FE6-4FN-II | 3/8" Flaretek | 1/4" FNPT | 0.25" (6.4 mm) | 1.89" (48.0 mm) | 0.94" (23.9 mm) |
FE6-6FN-* | 3/8" Flaretek | 3/8" FNPT | 0.25" (6.4 mm) | 1.89" (48.0 mm) | 1.00" (25.4 mm) |
FE6-6FN-II | 3/8" Flaretek | 3/8" FNPT | 0.25" (6.4 mm) | 1.89" (48.0 mm) | 1.00" (25.4 mm) |
FE6-8FN-* | 3/8" Flaretek | 1/2" FNPT | 0.25" (6.4 mm) | 1.89" (48.0 mm) | 1.23" (31.2 mm) |
FE6-8FN-II | 3/8" Flaretek | 1/2" FNPT | 0.25" (6.4 mm) | 1.89" (48.0 mm) | 1.23" (31.2 mm) |
FE8-4FN-* | 1/2" Flaretek | 1/4" FNPT | 0.34" (8.6 mm) | 1.99" (50.5 mm) | 0.94" (23.9 mm) |
FE8-4FN-II | 1/2" Flaretek | 1/4" FNPT | 0.34" (8.6 mm) | 2.01" (51.1 mm) | 0.94" (23.9 mm) |
FE8-6FN-* | 1/2" Flaretek | 3/8" FNPT | 0.38" (9.7 mm) | 1.99" (50.5 mm) | 1.00" (25.4 mm) |
FE8-6FN-II | 1/2" Flaretek | 3/8" FNPT | 0.38" (9.7 mm) | 2.01" (51.1 mm) | 1.00" (25.4 mm) |
FE8-8FN-* | 1/2" Flaretek | 1/2" FNPT | 0.38" (9.7 mm) | 1.99" (50.5 mm) | 1.23" (31.2 mm) |
FE8-8FN-II | 1/2" Flaretek | 1/2" FNPT | 0.38" (9.7 mm) | 2.01" (51.1 mm) | 1.23" (31.2 mm) |
Maximum Pressure Rating Chart
Flaretek Tube Fitting Connections
Maximum pressure capabilities of various sizes for various Flaretek nuts are listed below. (Tubing ratings are included as a reference.) These ratings are provided as a guide in system design. The component with the lowest maximum pressure rating determines your system maximum pressure rating.
Size (X) | Temperature °F (°C) | PVDF Nut FL(X)-1 psig (kPa) | PFA Nut FL(X)-3 psig (kPa) | CPFA Nut FL(X)-6 psig (kPa) | FlareLock II PFA Nut FL(X)II-3 psig (kPa) | FluoroLine® Ultrapure PFA Tubing psig (kPa) |
1/4" (4) | 75 (24) | 225 (1551) | 225 (1551) | 225 (1551) | 225 (1551) | 273 (1882) |
200 (93) | 133 (917) | 133 (917) | 133 (917) | 144 (993) | 136 (938) | |
250 (121) | 100 (689) | 100 (689) | 100 (689) | 120 (827) | 85 (586) | |
300 (150) | 75 (517) | 75 (517) | 75 (517) | 95 (655) | 61 (421) | |
350 (175) | N/R | 50 (345) | 50 (345) | 70 (483) | 36 (248) | |
400 (200) | N/R | N/R | 15 (103) | 45 (310) | N/R | |
3/8" (6) | 75 (24) | 225 (1551) | 225 (1551) | 225 (1551) | 225 (1551) | 234 (1613) |
200 (93) | 133 (917) | 133 (917) | 133 (917) | 144 (993) | 116 (800) | |
250 (121) | 100 (689) | 100 (689) | 100 (689) | 120 (827) | 73 (503) | |
300 (150) | 75 (517) | 75 (517) | 75 (517) | 95 (655) | 52 (359) | |
350 (175) | N/R | 50 (345) | 50 (345) | 70 (483) | 31 (214) | |
400 (200) | N/R | N/R | 15 (103) | 45 (310) | N/R | |
1/2" (8) | 75 (24) | 190 (1310) | 190 (1310) | 190 (1310) | 190 (1310) | 168 (1158) |
200 (93) | 100 (689) | 100 (689) | 100 (689) | 105 (724) | 83 (572) | |
250 (121) | 75 (517) | 75 (517) | 75 (517) | 82 (565) | 52 (359) | |
300 (150) | 50 (345) | 50 (345) | 50 (345) | 58 (400) | 37 (255) | |
350 (175) | N/R | 40 (276) | 40 (276) | 55 (379) | 22 (152) | |
400 (200) | N/R | N/R | 15 (103) | 35 (241) | N/R | |
3/4" (12) | 75 (24) | 110 (758) | 110 (758) | 110 (758) | 140 (965) | 107 (738) |
200 (93) | 76 (524) | 76 (524) | 76 (524) | 100 (689) | 53 (365) | |
250 (121) | 35 (241) | 35 (241) | 35 (241) | 47 (324) | 33 (228) | |
300 (150) | 27 (186) | 27 (186) | 27 (186) | 40 (276) | 24 (165) | |
350 (175) | N/R | 20 (138) | 20 (138) | 34 (234) | 14 (95.5) | |
400 (200) | N/R | N/R | 15 (103) | 27 (186) | N/R | |
1" (16) | 75 (24) | 75 (517) | 75 (517) | 75 (517) | 90 (620) | 77 (531) |
200 (93) | 40 (276) | 40 (276) | 40 (276) | 50 (345) | 38 (262) | |
250 (121) | 28 (193) | 28 (193) | 28 (193) | 34 (234) | 24 (165) | |
300 (150) | 15 (103) | 15 (103) | 17 (117) | 20 (138) | 17 (117) | |
350 (175) | N/R | 15 (103) | 15 (103) | 17 (117) | 10 (68.9) | |
400 (200) | N/R | N/R | 15 (103) | 15 (103) | N/R | |
1 1/4" (20) | 75 (24) | 80 (552) | 80 (552) | * | N/A | 80 (552) |
1 1/2" (24), 40 mm) | 75 (24) | N/A | N/A | N/A | N/A | 69 (476) |
N/R | = | Not Rated |
N/A | = | Not Available |
* | = | Contact Entegris |
Pipe Thread (NPT) Assembly Procedure
- Apply PTFE tape or paste sealant to MNPT threads starting one thread back from end of fitting.
- When using tape, tightly wrap in direction of threads to conform tape to thread shape.
a. Use 3 1/2 to 4 wraps of tape when assembling PFA threads to PFA material.
b. Use 4 to 5 wraps of tape when assembling PFA threads to a material other than PFA. - Thread the fitting onto the mating component until hand tight.
- Using a wrench, tighten fitting about 4 turns past hand tight.
PTFE tape = 1/2" wide for all NPT fittings
Note: PTFE tape is not recommended for use in a gaseous application.
Torque (in•lbs x .11298 = newton•m)
In•lbs | Newton•m | |
1/16" | 5.0 | 0.57 |
1/8" | 7.0 | 0.79 |
1/4" | 16 | 1.81 |
3/8" | 23 | 2.60 |
1/2" | 30 | 3.39 |
3/4" | 54 | 6.10 |
1" | 78 | 8.81 |
Successfully Opted for software Updates
Part Number | Leg 1 | Leg 2 | Nut Option |
---|---|---|---|
FE4-2FN-1 | 1/4" Flaretek® | 1/8" FNPT | PVDF Flaretek® nut |
FE4-2FN-3 | 1/4" Flaretek® | 1/8" FNPT | PFA Flaretek® nut |
FE4-2FN-6 | 1/4" Flaretek® | 1/8" FNPT | CPFA Flaretek® nut |
FE4-2FN-II | 1/4" Flaretek® | 1/8" FNPT | PFA FlareLock® II nut |
FE4-4FN-1 | 1/4" Flaretek® | 1/4" FNPT | PVDF Flaretek® nut |
FE4-4FN-3 | 1/4" Flaretek® | 1/4" FNPT | PFA Flaretek® nut |
FE4-4FN-6 | 1/4" Flaretek® | 1/4" FNPT | CPFA Flaretek® nut |
FE4-4FN-II | 1/4" Flaretek® | 1/4" FNPT | PFA FlareLock® II nut |
FE6-4FN-1 | 3/8" Flaretek® | 1/4" FNPT | PVDF Flaretek® nut |
FE6-4FN-3 | 3/8" Flaretek® | 1/4" FNPT | PFA Flaretek® nut |
FE6-4FN-II | 3/8" Flaretek® | 1/4" FNPT | PFA FlareLock® II nut |
FE6-6FN-1 | 3/8" Flaretek® | 3/8" FNPT | PVDF Flaretek® nut |
FE6-6FN-3 | 3/8" Flaretek® | 3/8" FNPT | PFA Flaretek® nut |
FE6-6FN-6 | 3/8" Flaretek® | 3/8" FNPT | CPFA Flaretek® nut |
FE6-6FN-II | 3/8" Flaretek® | 3/8" FNPT | PFA FlareLock® II nut |
FE6-8FN-1 | 3/8" Flaretek® | 1/2" FNPT | PVDF Flaretek® nut |
FE6-8FN-3 | 3/8" Flaretek® | 1/2" FNPT | PFA Flaretek® nut |
FE6-8FN-II | 3/8" Flaretek® | 1/2" FNPT | PFA FlareLock® II nut |
FE8-4FN-1 | 1/2" Flaretek® | 1/4" FNPT | PVDF Flaretek® nut |
FE8-4FN-3 | 1/2" Flaretek® | 1/4" FNPT | PFA Flaretek® nut |
FE8-4FN-6 | 1/2" Flaretek® | 1/4" FNPT | CPFA Flaretek® nut |
FE8-4FN-II | 1/2" Flaretek® | 1/4" FNPT | PFA FlareLock® II nut |
FE8-6FN-1 | 1/2" Flaretek® | 3/8" FNPT | PVDF Flaretek® nut |
FE8-6FN-II | 1/2" Flaretek® | 3/8" FNPT | PFA FlareLock® II nut |
FE8-8FN-1 | 1/2" Flaretek® | 1/2" FNPT | PVDF Flaretek® nut |
FE8-8FN-3 | 1/2" Flaretek® | 1/2" FNPT | PFA Flaretek® nut |
FE8-8FN-II | 1/2" Flaretek® | 1/2" FNPT | PFA FlareLock® II nut |
NOTE! Flaretek fittings are specifically designed, tested and characterized to work together with specific Flaretek fitting components manufactured by Entegris. Customers assume the risk of connection integrity if Flaretek fittings, body and/or nut components are attached to components manufactured by third parties.