90° BSPP Female Elbow - 316 Stainless Steel
150lb Threaded Fitting | ISO 4144 | 20 Bar | 1/8" to 4"
Product Overview
This 90° elbow fitting allows for a directional change in pipework, featuring female BSPP (British Standard Pipe Parallel) threads on both ends. Constructed from durable 316 stainless steel, it offers excellent corrosion resistance suitable for plumbing, industrial, marine, and chemical applications. This 150lb class fitting provides secure, leak-free connections for systems operating up to 20 bar (pressure varies with temperature).
Manufactured to ISO 4144 (dimensions) and ISO 228-1 / ISO 7-1 (threads) standards. Available in sizes from 1/8" to 4" BSPP.
Key Features
- Premium 316 Stainless Steel: Superior corrosion resistance for harsh environments and fluid compatibility.
- 90° Directional Change: Allows for sharp turns in pipe runs.
- BSPP Female Threads: Parallel threads (ISO 228-1 / G / Rp) on both ends for connection to male BSPP or BSPT threads (sealing on thread required).
- 150lb Pressure Class: Suitable for systems with a maximum working pressure up to 20 bar (300 psi), derated by temperature.
- ISO 4144 / ISO 7-1 / ISO 228-1: Manufactured to recognised standards for dimensions and threads.
- Durable Construction: Reliable performance in industrial, marine, and plumbing applications.
- Wide Size Range: Available in sizes from 1/8" up to 4" BSPP.
Product Specifications
- Product Type: 90° Elbow (Female x Female)
- Material: Stainless Steel Grade 316
- Thread Type: BSPP Female Parallel Threads (conforming to ISO 228-1 / ISO 7-1)
- Angle: 90 Degrees
- Pressure Class: 150lb / 150#
- Maximum Working Pressure: 20 bar / 300 psi (See Pressure-Temperature Rating)
- Manufacturing Standard: Conforms to ISO 4144 (based on type)
- Available Sizes: 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", 4"
Common Applications
- Creating 90-degree turns in pipework for water, air, oil, gas, and compatible fluids.
- Plumbing systems in industrial, commercial, and domestic settings.
- Process piping in chemical, food & beverage, and pharmaceutical industries (check compatibility).
- Marine and offshore pipe systems requiring corrosion resistance.
- Hydraulic and pneumatic circuits (check pressure/thread suitability).
- Connecting pipes around obstacles or changing flow direction.
Technical Dimensions
Dimensional Reference (mm): A = Centre to Face, B = Face to Face Width (approx)
| Size (BSPP) | A (mm) | B (mm) | Weight (kg each) |
|---|---|---|---|
| 1/8" | 13.5 | 14 | 0.01 |
| 1/4" | 17 | 19 | 0.03 |
| 3/8" | 21.5 | 21 | 0.04 |
| 1/2" | 25.5 | 25.5 | 0.06 |
| 3/4" | 31.3 | 28 | 0.08 |
| 1" | 38.7 | 33 | 0.14 |
| 1-1/4" | 48 | 40 | 0.23 |
| 1-1/2" | 53.7 | 43 | 0.28 |
| 2" | 66.7 | 52 | 0.51 |
| 2-1/2" | 84 | 61 | 0.82 |
| 3" | 98 | 71 | 1.33 |
| 4" | 124 | 89 | 2.16 |
Internal Bore Dimensions (Reference B)
| Size (BSPP) | Bore Dia. 'B' (mm) |
|---|---|
| 1/8" | 10.7 |
| 1/4" | 14 |
| 3/8" | 17.5 |
| 1/2" | 21.6 |
| 3/4" | 27 |
| 1" | 33.8 |
| 1-1/4" | 42.4 |
| 1-1/2" | 48.5 |
| 2" | 61.2 |
| 2-1/2" | 74.19 |
| 3" | 90.17 |
| 4" | 115.8 |
Note: Bore dimensions are provided for reference, based on ANSI/ASME B16.11/BS3799 socket weld standards often used for the forging blank. Actual internal profile may vary slightly for threaded fittings.
Pressure-Temperature Rating (150lb Class)
| Temperature (°C) | No-Shock Maximum Working Pressure (Bar) |
|---|---|
| -20 to 40 | 20 |
| 100 | 16.5 |
| 150 | 15 |
| 200 | 14 |
| 220 | 13.5 |
Note 1: Pressure for intermediate temperatures may be determined by the interpolation method.
Note 2: Temperatures indicated are those of the internal fluid.
Note 3: Piping loads, stresses, and moments are not taken into account in these ratings.
Need Assistance?
Contact Air System Controls for technical support, specific size availability, bulk pricing, or queries regarding chemical compatibility.
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