1 x 1/4 in (25 x 8 mm) Threaded Reducing Coupling, NPT, Black | PCP2508
Available
This AAP threaded reducing coupling is a forged carbon steel fitting with NPT thread and a black finish. It is supplied in 14 sizes, 3/4 x 1/4 in (20 x 8 mm) to 3 x 2 in (80 x 50 mm).
A reducing coupling joins two male threaded pipes of different sizes. It is threaded inside at both ends. The size is given as the larger thread first, then the smaller. A is its length and B is its outside diameter, as lettered on the AAP drawing.
AAP rates its threaded high pressure fittings at 3000 lb (manufacturer-stated). AAP's pressure and temperature chart for screwed and socket welding fittings lists 3000 lb fittings at 3000 psi (about 20.7 MPa) from -20 to 100 degrees F (-29 to 38 degrees C), reducing to 355 psi (about 2.4 MPa) at 1000 degrees F (538 degrees C). AAP lists ASTM A105 carbon steel forgings among the standards for the range.
Where this product is used
- High pressure threaded pipework in carbon steel, as listed by AAP for the 3000 lb range
- Joining two male threaded pipes of different sizes
- Stepping a threaded pipe run down in size
Features
- 14 sizes, 3/4 x 1/4 in (20 x 8 mm) to 3 x 2 in (80 x 50 mm)
- 3000 lb forged carbon steel, ASME B16.11-2009 (manufacturer-stated)
- NPT, black
Key specifications
| Specification | Detail |
|---|---|
| Brand | AAP |
| Product | Threaded reducing coupling, forged carbon steel |
| Thread | NPT taper threads to ANSI B1.20.1 (manufacturer-stated) |
| Finish | Black |
| Rating (manufacturer-stated) | 3000 lb, threaded end |
| Applicable standard (manufacturer-stated) | ASME B16.11-2009 |
| Material | Carbon steel forging (AAP lists ASTM A105 among the standards for the range, manufacturer-stated) |
| Marking (manufacturer-stated) | Sizes 3/8 in and under: brand only. 1/2 in to 4 in: brand, material, heat number, B16, pressure and size |
| Sizes | 3/4 x 1/4 in (20 x 8 mm) to 3 x 2 in (80 x 50 mm) (14 sizes) |
Options and part numbers
| Size | Part number | Length A (mm) | Outside dia. B (mm) | Weight (kg) |
|---|---|---|---|---|
| 3/4 x 1/4 in (20 x 8 mm) | PCP2008 | 51 | 35 | 0.25 |
| 3/4 x 3/8 in (20 x 10 mm) | PCP2010 | 51 | 35 | 0.25 |
| 3/4 x 1/2 in (20 x 15 mm) | PCP2015 | 51 | 35 | 0.22 |
| 1 x 1/4 in (25 x 8 mm) | PCP2508 | 60 | 44 | 0.68 |
| 1 x 1/2 in (25 x 15 mm) | PCP2515 | 60 | 44 | 0.6 |
| 1 x 3/4 in (25 x 20 mm) | PCP2520 | 60 | 44 | 0.52 |
| 1-1/4 x 3/4 in (32 x 20 mm) | PCP3220 | 67 | 57 | 0.9 |
| 1-1/4 x 1 in (32 x 25 mm) | PCP3225 | 67 | 57 | 0.85 |
| 1-1/2 x 1 in (40 x 25 mm) | PCP4025 | 79 | 64 | 1.5 |
| 1-1/2 x 1-1/4 in (40 x 32 mm) | PCP4032 | 79 | 64 | 1.3 |
| 2 x 1/2 in (50 x 15 mm) | PCP5015 | 86 | 76 | 2.1 |
| 2 x 1 in (50 x 25 mm) | PCP5025 | 86 | 76 | 1.8 |
| 2 x 1-1/2 in (50 x 40 mm) | PCP5040 | 86 | 76 | 1.6 |
| 3 x 2 in (80 x 50 mm) | PCP8050 | 108 | 108 | 3.9 |
A and B are the dimensions lettered on the AAP drawing, in millimetres.
Selecting the right option
Choose the size and thread to match your pipework (NPT or BSPT cannot be mixed), and check the thread gender at each end against the fitting it joins. Sizes are listed as the larger thread first, then the smaller. AAP also lists a size in this range (PCP2510), which AIMS does not currently list. Ask if you need it.
Related products
See also AAP 3000lb Threaded Coupling, NPT, Black, AAP 3000lb Threaded Half Coupling, NPT, Black, AAP 3000lb 90 Degree Threaded Elbow, NPT, Black and AAP 3000lb Threaded Union, NPT, Black.
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1" x 1/4"
Model Number: PCP2508
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1" x 1/2"
Model Number: PCP2515
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1" x 3/4"
Model Number: PCP2520
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1-1/4" x 3/4"
Model Number: PCP3220
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1-1/4" x 1"
Model Number: PCP3225
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1-1/2" x 1"
Model Number: PCP4025
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1-1/2" x 1-1/4"
Model Number: PCP4032
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2" x 1/2"
Model Number: PCP5015
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2" x 1"
Model Number: PCP5025
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2" x 1-1/2"
Model Number: PCP5040
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3/4" x 1/4"
Model Number: PCP2008
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3/4" x 3/8"
Model Number: PCP2010
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3/4" x 1/2"
Model Number: PCP2015
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3" x 2"
Model Number: PCP8050
