Service Metal
300# Black Malleable Street 90 Elbows
- SKU:
- XB9STR
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
300# Black Malleable Iron Street 90 Degree Elbow
300# Black Malleable Iron Street 90° Elbows are designed for higher-pressure threaded piping systems requiring a compact 90-degree directional change with a direct male-to-female connection.
Featuring one male NPT end and one female NPT end, these Class 300 street elbows can connect directly into compatible threaded fittings or pipe connections without requiring an additional nipple. Their durable malleable iron construction makes them well suited for industrial, commercial, plumbing, mechanical, gas, air, oil, and compatible fluid piping systems.
Product Highlights
- 90° street elbow configuration
- Male NPT x female NPT threaded connection
- Allows direct connection into compatible threaded fittings
- Can eliminate the need for a separate pipe nipple in many layouts
- Compact design for space-constrained installations
- Designed for higher-duty Class 300 threaded piping systems
- Durable black malleable iron construction
- Malleable castings conform to ASTM A197
- Malleable fitting dimensions conform to ASME B16.3
- NPT threads conform to ASME B1.20.1
- Class 300 fittings are UL Listed
- Suitable for gas, oil, air, and compatible fluid piping systems
- Manufactured in an ISO-certified facility
- Country of origin: Thailand & China
Technical Specifications
| Product Type | Street 90 Degree Elbow |
|---|---|
| Material | Malleable Iron |
| Finish | Black |
| Pressure Class | 300# |
| Connection Type | Male NPT x Female NPT |
| Configuration | Street Pattern 90° Elbow |
| Primary Function | Compact 90-Degree Directional Change |
| Casting Standard | ASTM A197 |
| Dimensional Standard | ASME B16.3 |
| Thread Standard | ASME B1.20.1 |
| Listing | Class 300 Fittings are UL Listed |
| Manufacturing | ISO-Certified Facility |
| Country of Origin | Thailand & China |
Construction & Applications
Malleable Iron Construction
Manufactured from malleable iron castings conforming to ASTM A197 for dependable strength and durability in demanding threaded piping systems.
Street Pattern Connection
The male x female configuration allows one end of the elbow to thread directly into another fitting, helping reduce the number of components required in compact piping layouts.
90° Directional Change
The elbow creates a right-angle turn while maintaining a compact footprint for routing piping around equipment, walls, structures, or other system components.
Why Use a Street 90 Elbow?
Fewer Threaded Components
A street elbow can connect directly into a female-threaded fitting, often eliminating the separate nipple that would be required with a standard female x female elbow.
Compact Installation
The direct male-to-female design is useful where installation space is limited and minimizing fitting length is important.
Typical Applications
Industrial & Mechanical Piping
- Industrial piping systems
- Mechanical piping
- Compressed air systems
- Equipment connections
- General fluid piping
Common Service Applications
- Gas piping
- Oil piping
- Air lines
- Utility piping
- Higher-duty threaded systems
Ask Willy: Need Pipe Size Help?
Use our common pipe diameters and wall thickness chart to confirm sizing before ordering 300# black malleable iron fittings. You can also review the street 90 elbow specification sheet and Certificate of Conformance below.
Standards & Approvals
ASTM A197
Malleable iron castings conform to ASTM A197.
ASME Standards
Malleable fitting dimensions conform to ASME B16.3, while NPT threads conform to ASME B1.20.1.
UL Listing
The supplied product information states that Class 300 malleable iron fittings are UL Listed.
Related Malleable Iron Standards
- Malleable bushings, plugs, and locknuts conform to ASME B16.14.
- Malleable unions conform to ASME B16.39.
- NPT threads on applicable fittings conform to ASME B1.20.1.
- Class 300 fittings are UL Listed according to the supplied product information.
Need More 300# Black Malleable Iron Fittings?
Browse our complete selection of 300# black malleable iron fittings, including street elbows, standard elbows, tees, couplings, bushings, unions, and other heavy-duty threaded fittings.
Frequently Asked Questions
What is a street 90-degree elbow?
A street elbow is a 90-degree elbow with one male threaded end and one female threaded end.
How is a street elbow different from a standard 90-degree elbow?
A standard threaded elbow typically uses female connections on both ends. A street elbow has one male and one female connection, allowing it to thread directly into another female-threaded fitting.
What type of connections does this fitting use?
This street elbow uses a male NPT connection on one end and a female NPT connection on the other.
Can a street elbow eliminate a pipe nipple?
Yes. In many piping layouts, the male end can connect directly into another fitting, eliminating the need for a separate nipple between fittings.
Why use a street elbow in a tight piping layout?
The male-to-female configuration reduces the number of components and overall assembly length, making it useful where installation space is limited.
How is a 300# street elbow different from a 150# fitting?
The Class 300 fitting is a heavier-duty fitting intended for more demanding threaded piping applications than a standard Class 150 fitting.
What material standard applies?
The supplied product information states that the malleable iron castings conform to ASTM A197.
What thread standard applies?
NPT threads conform to ASME B1.20.1.
Are Class 300 malleable iron fittings UL Listed?
Yes. The supplied product information states that Class 300 fittings are UL Listed.
What should I verify before ordering?
Confirm the nominal pipe size, male x female street configuration, required fitting class, service conditions, and applicable piping-system requirements.
Important Ordering & Installation Notes
- Confirm the required nominal pipe size before ordering.
- This fitting uses one male NPT connection and one female NPT connection.
- The street pattern allows direct connection into compatible female-threaded fittings.
- The elbow creates a 90° directional change without reducing pipe size.
- Confirm that Class 300 construction is appropriate for the intended piping system.
- NPT threads conform to ASME B1.20.1.
- Malleable fitting dimensions conform to ASME B16.3.
- Use compatible pipe, fittings, thread sealant, and accepted threaded installation practices.
- Do not assume the “300#” class designation alone establishes allowable working pressure for every service condition.
- Verify pressure, temperature, media compatibility, applicable codes, and system requirements before installation.
- Refer to the specification sheet and Certificate of Conformance for additional product information.
