ASC
300# Extra Heavy Black Malleable Iron Tee
- Availability:
- Usually in Stock – Ships Quickly
- Weight:
- 0.00 LBS
Description
300# Extra Heavy Black Malleable Iron Tee
300# extra heavy black malleable iron tees connect three male-threaded pipe ends, pipe nipples, valves, or compatible fittings of the same nominal size. The three female NPT openings form a straight run with a 90-degree branch, making these tees suitable for dividing, combining, or extending flow in demanding commercial and industrial threaded piping systems.
Select the required nominal pipe size from the product options above. The selected variation determines the ASC item number, UPC, online selling price, weight, net cost, and other size-specific product information.
Product Highlights
- 300# / Class 300 extra heavy black malleable iron construction
- Three equal-size female NPT threaded connections
- Straight run with a 90-degree branch outlet
- Designed to connect three compatible male-threaded components
- Manufactured to ASME B16.3 requirements
- Threads conform to ASME B1.20.1
- Malleable iron material conforms to ASTM A197
- UL Listed
- ASC Figure 3164
- Available in nominal pipe sizes from 1/4" through 4"
Technical Specifications
| Material | Black Malleable Iron |
|---|---|
| Pressure Class | 300# / Class 300 / Extra Heavy |
| Connection | Female NPT x Female NPT x Female NPT |
| Connection Sizes | Three Equal-Size Connections |
| Branch Angle | 90 Degrees |
| Thread Standard | ASME B1.20.1 |
| Dimensional Standard | ASME B16.3 |
| Material Standard | ASTM A197 |
| Finish | Black |
| Listing | UL Listed |
| Manufacturer | ASC |
| Figure Number | 3164 |
| Available Sizes | 1/4" through 4" |
How a Pipe Tee Works
A threaded pipe tee has two aligned female NPT openings that form the main run and a third female NPT opening positioned at 90 degrees to create the branch. Compatible male-threaded pipe, pipe nipples, valves, or fittings are threaded into the three openings to divide flow, combine flow, or add a branch connection while maintaining the same nominal pipe size.
Common Applications
Commercial and Mechanical Systems
- Creating branch lines in threaded piping
- Commercial plumbing systems
- Mechanical-room piping
- Equipment and valve connections
- Water and utility piping
- General repair and maintenance
Industrial and Fire-Protection Service
- Industrial process piping
- Fire-protection piping where approved
- Compressed-air systems
- Oil and petroleum piping
- Compatible gas service
- Approved low-pressure steam service
Product Resources
Review the ASC malleable iron threaded fittings catalog for dimensions, weights, standards, and additional product information before installation.
Need Help Selecting a 300# Black Malleable Iron Tee?
Our industrial PVF specialists can help confirm the required pipe size, pressure class, thread type, branch configuration, material compatibility, service conditions, and product availability.
Frequently Asked Questions
What is a 300# black malleable iron tee used for?
It creates a 90-degree branch in a threaded piping system, allowing flow to be divided, combined, or extended through three connected pipe runs.
Does this tee have female threads on all three openings?
Yes. All three openings have female NPT threads for connection to compatible male-threaded pipe, pipe nipples, valves, or fittings.
Are all three openings the same nominal pipe size?
Yes. This is a standard equal-size tee.
What pressure class is this fitting?
This fitting is manufactured as a 300# / Class 300 extra heavy threaded malleable iron fitting.
What sizes are available?
Available product variations range from 1/4" through 4" nominal pipe size.
What standards and listings apply?
The fitting conforms to ASME B16.3, ASTM A197, and ASME B1.20.1 requirements. ASC lists its Class 300 malleable iron fittings as UL Listed.
Should thread sealant be used during installation?
Use an approved pipe-thread sealant or thread tape selected for the piping media, pressure, temperature, applicable codes, and manufacturer recommendations.
Important Ordering Notes
- Select the required nominal pipe size before adding the product to your cart.
- This is an equal-size tee with three female NPT connections.
- The selected variation determines the ASC item number, UPC, online selling price, weight, and net cost.
- Confirm the nominal size and thread type of all mating components before ordering.
- Confirm that a 90-degree branch connection is appropriate for the piping layout.
- Confirm pressure, temperature, media compatibility, and application requirements before installation.
- Use an approved thread sealant suitable for the piping media and operating conditions.
- Support connected piping properly to avoid excessive mechanical stress on the fitting.
- Installation should be completed by qualified personnel and comply with applicable codes and standards.
