90° BSP Male × Female Conical-Seat Union Elbow in 316 (CF8M) Stainless Steel
90° BSP Male × Female Conical-Seat Union Elbow in 316 (CF8M) Stainless Steel designed with BSPT Taper Male (Union End) × BSPP Parallel Female (Elbow Socket) connections for industrial stainless steel threaded piping. Constructed as a three-piece union elbow with conical metal-to-metal seat and male union tailpiece in 316 (CF8M / 1.4408) Investment Cast Stainless Steel. Available across nominal sizes 1/8" to 2".
Thread Interface | BSPT Taper Male (Union End) × BSPP Parallel Female (Elbow Socket) |
|---|---|
Material Grade | 316 (CF8M / 1.4408) Investment Cast Stainless Steel |
Nominal Size Range | 1/8"–2" |
Body structure | Three-piece union elbow with conical metal-to-metal seat and male union tailpiece |
Component form | 90° demountable male-to-female union elbow |
Size
Product overview
Connection Geometry & 316 Stainless Steel Construction
This 90° BSP male × female conical-seat union elbow in 316 (CF8M) stainless steel features three-piece union elbow with conical metal-to-metal seat and male union tailpiece in a 90° demountable male-to-female union elbow profile, providing BSPT Taper Male (Union End) × BSPP Parallel Female (Elbow Socket) connections for modular stainless steel piping, equipment hookups, and manifold assemblies. Manufactured in 316 (CF8M / 1.4408) Investment Cast Stainless Steel, the fitting offers molybdenum-bearing austenitic corrosion resistance suited for process water, chemical transfer, utility air, and washdown environments.
Size Coverage & Thread Assembly
The series covers nominal sizes across 1/8" to 2" (9 sizes; A = 58–117.5 mm, B = 29.1–85.5 mm, C = 16.4–70.5 mm). Refer to the dimensional schedule on this product page to match each thread size against its corresponding envelope length, outside diameter or across-flats width, and unit weight. Before installing this 90° BSP male × female conical-seat union elbow in 316 (CF8M) stainless steel, verify that your mating ports match the BSPT Taper Male (Union End) × BSPP Parallel Female (Elbow Socket) interface and select an appropriate thread sealant or gasket for the joint. Specify the required nominal size from 1/8" to 2" (9 sizes; A = 58–117.5 mm, B = 29.1–85.5 mm, C = 16.4–70.5 mm) and confirm installation clearance when ordering.
Technical specifications
Product specifications
- Construction
- Investment casting
- Standard references
- Manufactured generally to ISO4144; BSP threads to ISO7-1
Dimensions · CH-F005
A/B/C match drawing symbols. Length units are not printed; unit mass is in kg.
Units: SIZE: nominal pipe size; KG EACH: kg per piece. Length units appear beside applicable values.

| Nominal size | Chelsey reference | A | B | C | Unit weight (kg) |
|---|---|---|---|---|---|
| 1/8 | CH-F005-001 | 58 | 29.1 | 16.4 | 0.10 |
| 1/4 | CH-F005-002 | 60 | 29.1 | 20 | 0.11 |
| 3/8 | CH-F005-003 | 61 | 34 | 23.5 | 0.14 |
| 1/2 | CH-F005-004 | 64 | 37.5 | 28 | 0.17 |
| 3/4 | CH-F005-005 | 66.5 | 44.5 | 32.5 | 0.29 |
| 1 | CH-F005-006 | 81.5 | 53.5 | 42 | 0.47 |
| 1-1/4 | CH-F005-007 | 87.5 | 64 | 50 | 0.51 |
| 1-1/2 | CH-F005-008 | 101 | 71.5 | 57 | 0.82 |
| 2 | CH-F005-009 | 117.5 | 85.5 | 70.5 | 1.29 |
Temperature/pressure reference · CH-F005
Maximum working pressure versus fluid temperature for non-shock service; external pipe loads and moments are excluded.
Units: °C / BAR
| Temperature (°C) | Pressure (BAR) |
|---|---|
| -20 to 40 | 20 |
| 100 | 16.5 |
| 150 | 15 |
| 200 | 14 |
| 220 | 13.5 |
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