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Let’s explore the features and applications of 90 Degree Elbows. Understanding these will ensure top-notch performance and efficiency in your projects.
### Properties and Uses of 90 Degree Elbows
Elbows that form a 90-degree turn are designed to redirect the flow of fluids by a right angle. These fittings come in various sizes to match different pipe diameters and flow rates. Key properties include:
- **Bend Angle:** 90 degrees.
- **Functionality:** Redirecting fluid flow at a perpendicular angle.
- **Material Options:** Available in numerous materials, including stainless steel, aluminum, and copper.
- **Pressure Ratings:** Depend on the material and design specifications.
- **End Types:** Can be threaded, welded, or flanged.
- **Radius Types:** Long radius or short radius.
These elbows are widely used in industries like oil and gas refineries, chemical plants, plumbing, power generation, and HVAC systems. They play a crucial role in managing fluid dynamics and ensuring efficient operation.
### 90 Degree Elbow Specifications
90 Degree Elbows conform to standards set by organizations like ASME B16.9, ASTM A234, and MSS SP-75. They are manufactured in diverse sizes ranging from 1/2" to 48", with options for SCH 10, SCH 40, and SCH 80 thicknesses. They can also be coated in black paint, epoxy, galvanized, or varnished finishes.
### SS 90 Degree Elbow Dimensions and Size Chart
Stainless steel elbows are commonly available in 304 and 316 grades, known for excellent corrosion resistance and durability. Below are some standard dimensions:
| Inch | ND (mm) | Center to Center (mm) | Radius (mm) |
|------|---------|-----------------------|-------------|
| 1/2 | 15 | 76.20 | 38.10 |
| 3/4 | 20 | 57.15 | 28.57 |
| 1 | 25 | 76.20 | 38.10 |
### Aluminum 90 Degree Elbow Weight Chart
Aluminum elbows are lightweight yet strong, making them ideal for applications requiring reduced weight without compromising strength. Here's a sample weight chart:
| NPS (Inch) | Sch. 5S | Sch. 10S | Sch. 40S | Sch. 80S |
|------------|----------|----------|----------|----------|
| 1/2 | 0.05 | 0.06 | 0.08 | 0.10 |
| 3/4 | 0.06 | 0.07 | 0.09 | 0.11 |
### 90 Deg Elbow Materials
90 Degree Elbows are manufactured using various materials to suit different environments and pressures. Common materials include:
- **Stainless Steel:** Grades 316/316L, ASTM A403 WP 304/304L. Known for high strength and corrosion resistance.
- **Carbon Steel:** ASTM A420 WPL6, MSS-SP-75 WPHY 46. Offers high strength and hardness.
- **Alloy Steel:** ASTM A234 WP1, WP5, WP9. Designed for high-temperature applications.
- **Duplex/Super Duplex:** A815 UNS S31803, UNS S32750. Known for stress corrosion resistance and toughness.
- **Nickel Alloys:** UNS 8020, UNS 8825. Offers high creep strength and low vapor magnetic properties.
### Advantages of 90 Degree Elbows
- **Fluid Efficiency:** Optimizes flow dynamics.
- **Versatility:** Compatible with multiple materials and applications.
- **Space-Saving Design:** Ideal for tight spaces.
- **Pressure Handling:** Suitable for pressurized fluids and gases.
These elbows are indispensable tools in modern engineering and construction, providing both functionality and reliability across a wide range of industries. Whether you're working with stainless steel, aluminum, or copper, choosing the right elbow ensures optimal performance and longevity in your projects.