NPT Pipe Straight Union, MNPT (Nipple)
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- High purity, chemical handling applications in the semiconductor industry
- Corrosive applications in the chemical industry
- Corrosive, high purity Laboratory applications
Specifications
Part Number | Leg 1 | Leg 2 | Orifice | Dimension A | Hex |
N1-1 | 1/16" | 1/16" | 0.12" (3.0 mm) | 1.40" (35.6 mm) | 1/2" |
N2-1 | 1/8" | 1/16" | 0.12" (3.0 mm) | 1.40" (35.6 mm) | 1/2" |
N2-2 | 1/8" | 1/8" | 0.20" (5.1 mm) | 1.40" (35.6 mm) | 1/2" |
N4-2 | 1/4" | 1/8" | 0.20" (5.1 mm) | 1.40" (35.6 mm) | 5/8" |
N4-4 | 1/4" | 1/4" | 0.29" (7.4 mm) | 1.40" (35.6 mm) | 5/8" |
N6-4 | 3/8" | 1/4" | 0.29" (7.4 mm) | 1.40" (35.6 mm) | 13/16" |
N6-6 | 3/8" | 3/8" | 0.42" (10.7 mm) | 1.40" (35.6 mm) | 13/16" |
N8-4 | 1/2" | 1/4" | 0.29" (7.4 mm) | 1.40" (35.6 mm) | 13/16" |
N8-6 | 1/2" | 3/8" | 0.42" (10.7 mm) | 1.40" (35.6 mm) | 15/16" |
N8-8 | 1/2" | 1/2" | 0.53" (13.5 mm) | 1.40" (35.6 mm) | 15/16" |
N12-8 | 3/4" | 1/2" | 0.53" (13.5 mm) | 1.63" (41.4 mm) | 1 3/16" |
N12-12 | 3/4" | 3/4" | 0.67" (17.0 mm) | 1.65" (41.9 mm) | 1 3/16" |
N16-12 | 1" | 3/4" | 0.67" (17.0 mm) | 1.80" (45.7 mm) | 1 7/16" |
N16-16 | 1" | 1" | 0.95" (24.1 mm) | 1.93" (49.0 mm) | 1 7/16" |
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 |
---|---|---|
N1-1 | 1/16" MNPT | 1/16" MNPT |
N12-12 | 3/4" MNPT | 3/4" MNPT |
N12-8 | 3/4" MNPT | 1/2" MNPT |
N16-12 | 1" MNPT | 3/4" MNPT |
N16-16 | 1" MNPT | 1" MNPT |
N2-1 | 1/8" MNPT | 1/16" MNPT |
N2-2 | 1/8" MNPT | 1/8" MNPT |
N4-2 | 1/4" MNPT | 1/8" MNPT |
N4-4 | 1/4" MNPT | 1/4" MNPT |
N6-4 | 3/8" MNPT | 1/4" MNPT |
N6-6 | 3/8" MNPT | 3/8" MNPT |
N8-4 | 1/2" MNPT | 1/4" MNPT |
N8-6 | 1/2" MNPT | 3/8" MNPT |
N8-8 | 1/2" MNPT | 1/2" MNPT |