Street Elbow 90
Product Details
Zhejiang Leadtek Fluid Technology Co., Ltd. is one of the most experienced manufacturers and suppliers of street elbow 90 in China. Please feel free to buy customized street elbow 90 at competitive price from our factory. Also, free sample is available.
Street Elbow 90 - Leadtek Fluid｜ISO4144 Stainless Steel Threaded Fitting
Street Elbow 90 redirects piping flow at a precise 90-degree angle within a compact single-body design - one end male thread, one end female thread - eliminating the need for an additional nipple in tight-space installations. Compared to a standard elbow paired with a nipple, it reduces joint count, lowers leak risk, and shortens assembly time.
Manufactured to ISO 4144 standard in CF8 (SS304) and CF8M (SS316) stainless steel, it covers sizes from 1/8" (DN6) to 4" (DN100), serving water treatment, chemical processing, petrochemical, and fire protection piping systems.
Specifications
| Size | DN | ΦD (mm) | a (mm) | b (mm) | W. (kgs) |
|---|---|---|---|---|---|
| 1/8" | 6 | 14.5 | 17 | 27 | 0.017 |
| 1/4" | 8 | 18 | 19 | 28 | 0.026 |
| 3/8" | 10 | 21.5 | 23 | 32 | 0.037 |
| 1/2" | 15 | 26.5 | 27 | 37 | 0.066 |
| 3/4" | 20 | 32 | 32 | 43 | 0.096 |
| 1" | 25 | 39.5 | 37 | 52 | 0.144 |
| 1-1/4" | 32 | 48.5 | 43 | 59 | 0.221 |
| 1-1/2" | 40 | 55 | 48 | 64 | 0.300 |
| 2" | 50 | 67 | 56 | 74 | 0.448 |
| 2-1/2" | 65 | 84 | 69 | 89 | 1.002 |
| 3" | 80 | 98 | 78 | 100 | 1.411 |
| 4" | 100 | 124.5 | 94 | 120 | 2.494 |
Key Parameters
Standard: ISO 4144
Material: CF8 (ASTM A351, equivalent SS304) / CF8M (ASTM A351, equivalent SS316)
Working Pressure: Class 150, max. 2 MPa @ -20℃ to 40℃
Temperature Range: -20℃ to 220℃ (pressure de-rates with temperature - see table below)
Thread Types: BSP / BSPT (BS21, ISO7-1) · NPT (ANSI/ASME B1.20.1) · DIN2999 · JIS B0203 · KS B0221
End Connection: Male × Female (street pattern)
Applications: Water treatment, chemical & petrochemical process lines, fire protection systems, compressed air, oil & gas utilities
Pressure–Temperature Rating (Class 150)
| Temperature (℃) | -20 ~ 40 | 100 | 150 | 200 | 220 |
|---|---|---|---|---|---|
| Max. Working Pressure (MPa) | 2.00 | 1.65 | 1.50 | 1.40 | 1.35 |
For intermediate temperatures, interpolation applies. Ratings based on internal fluid temperature; piping loads and external stresses are not accounted for.
Why Choose Leadtek's Street Elbow 90
Compact single-body design, fewer joints
The street pattern combines male and female ends in one casting, saving one pipe joint versus a standard elbow + nipple combination - critical in confined manifold or instrument piping layouts.
01
Verified 90-degree accuracy
Deviation in bend angle propagates alignment error through the entire run. Every piece is individually inspected for angular accuracy before release.
02
100% pressure-tested before shipment
All Class 150 fittings are tested at 0.6 MPa air pressure for 15 seconds. No exceptions.
03
Thread accuracy by CNC + gauge
Each machined thread is verified one-by-one using calibrated thread gauges. Mis-threaded fittings are the most common source of field leaks in threaded systems.
04
Full material traceability
CF8 / CF8M material conforms to ASTM A351/A351M-2018. Chemical composition records are retained for every production batch.
05
Material Chemical Composition
| Material | Standard | C | Si | Mn | P | S | Cr | Mo | Ni |
|---|---|---|---|---|---|---|---|---|---|
| CF8 | ASTM A351/A351M-2018 | ≤0.080 | ≤2.00 | ≤1.50 | ≤0.040 | ≤0.040 | 18.00–21.00 | ≤0.050 | 8.00–11.00 |
| CF8M | ASTM A351/A351M-2018 | ≤0.080 | ≤1.50 | ≤1.50 | ≤0.040 | ≤0.040 | 18.00–21.00 | 2.00–3.00 | 9.00–12.00 |
CF8M adds 2–3% molybdenum, providing substantially better resistance to pitting and chloride corrosion versus CF8 - the preferred choice for chemical service and coastal environments.
Quality Control Process
Leadtek operates full in-house control across casting, CNC machining, and inspection - no outsourced stages that break traceability.
100% Process Control
Production parameters are logged and reviewed at each stage against our ISO 9001 quality system.
100% Leakage Test
0.6 MPa air pressure, 15 seconds, every fitting.
100% Thread Inspection
CNC operators verify each thread with calibrated gauges before the part moves to the next stage.
100% Angular Verification
90-degree accuracy is confirmed dimensionally on every piece. A misaligned elbow creates cumulative stress across the entire piping run.
About the Manufacturer
Zhejiang Leadtek Fluid Technology Co., Ltd. was established in 2015 and is headquartered in Changshan Industrial Park, Quzhou, Zhejiang - China's established stainless steel manufacturing corridor. The facility covers 37,000 m², operates 400+ production machines, and employs 300+ staff including a dedicated R&D and global sales team.
Leadtek's products are supplied to customers in 80+ countries across Europe, North America, Asia-Pacific, the Middle East, and South America. The company holds ISO 9001, ISO 14001, CE, and multiple additional international certifications, along with 40+ patented technologies.
The 90 Degree Pipe Street Elbow is part of Leadtek's ISO 4144 stainless steel threaded fitting range - manufactured under the same quality system as our ball valves, gate valves, and sanitary fittings, and backed by the same engineering team.
FAQ
Q: Can you produce other sizes or non-standard configurations?
A: Contact us with your drawing or specification. Leadtek has in-house mould design and precision casting capability and regularly produces non-standard configurations for volume orders.
Q: What is the sample lead time?
A: Standard sample lead time is 20–30 days from design confirmation. Contact us to confirm availability of standard sizes from current production runs.
Q: Do you provide material test reports?
A: Material certificates per ASTM A351/A351M-2018 are available with every order. PMI testing can be arranged based on specific project requirements.
Q: What media is this fitting suitable for?
A: Class 150 stainless steel threaded fittings are rated for steam, air, oil, water, and non-flammable/non-toxic gas at working pressures up to 2 MPa. For aggressive chemicals or chloride-rich environments, CF8M is the recommended grade.
Q: How is packaging handled for export orders?
A: Fittings are packed to prevent thread damage and surface scratching during international shipping. Export carton, pallet, and custom labelling options are available - confirm requirements when placing your order.
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