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Product description
Malleable iron pipe fittings are suitable for pipeline connection pieces used in the transportation of media with a nominal size ranging from DN6 to DN200, a service temperature of -29°C to 175°C, and a maximum working pressure of 2.1 MPA. They are an important part of the pipeline systems in the fields of gas, fire protection, water affairs, and heating, ventilation and air conditioning, and can meet the connection requirements of various pipeline systems. Whether it is a straight pipeline or a curved pipeline, or whether it is a pipeline with the same diameter or different diameters, malleable iron pipe fittings can provide a firm and reliable American standard threaded connection, which is convenient for on-site construction.
Customer challenge
Product function
Value advantage
Premium Material
Superior Corrosion Resistance
Precision Threads
Comprehensive Product Range
Fast Service
High Cost Performance
Our Malleable Iron Threaded Tee, a type of Malleable Iron Pipe Fitting, provides a durable 90-degree branch connection for water, gas, air, steam, fire protection, HVAC and general industrial piping systems.
Available in equal and reducing configurations, the tee allows distributors, contractors and project buyers to connect three threaded pipes or create a branch with a different nominal diameter without adding a separate reducer.
HULU supplies malleable iron tees as part of a complete threaded pipe fitting range for wholesalers, importers, MEP contractors, EPC companies and private-label brands. NPT and BSP thread options, black and galvanized finishes, multiple sizes and customized packaging can be coordinated according to your purchasing requirements.
• Product: Malleable Iron Threaded Tee
• Types: Equal Tee / Reducing Tee
• Size Range: DN6–DN200
• Connection: Female Threaded
• Thread Options: NPT / BSP
• Finish Options: Black / Galvanized
• Service Temperature: -29°C to 175°C
• Maximum Working Pressure: Up to 2.1 MPa
• Applications: Water, Gas, Air, Steam, Fire Protection and HVAC
• Order Type: Bulk, Distributor, Project and OEM Orders
• Quality Control: Thread, Dimension, Surface and Pressure Inspection
| Specification | Available Configuration |
|---|---|
| Product Name | Malleable Iron Threaded Tee |
| Fitting Types | Equal Tee / Reducing Tee |
| Material | Malleable Cast Iron |
| Nominal Size Range | DN6–DN200 |
| Connection Type | Female Threaded |
| Thread Options | NPT / BSP according to order requirements |
| Branch Angle | 90 Degrees |
| Surface Finish | Black / Galvanized |
| Service Temperature | -29°C to 175°C |
| Maximum Working Pressure | Up to 2.1 MPa |
| Typical Media | Water, Air, Gas, Oil and Steam |
| Applications | Plumbing, Fire Protection, Gas, HVAC and Industrial Piping |
| Inspection | Pressure, Thread, Dimension, Surface and Marking Inspection |
| Order Options | Single Size / Mixed Sizes / Equal & Reducing Tee Combination |
| OEM Options | Casting Mark, Branding, Labeling and Customized Packaging |
| Purchasing Type | Wholesale, Distributor, OEM and Project Procurement |
For an accurate quotation, please provide the required tee configuration, three connection sizes, thread standard, finish and quantity for each size.
Different piping layouts require different branch configurations. We supply both Malleable Iron Equal Tees and Malleable Iron Reducing Tees for bulk purchasing programs.
A Malleable Iron Equal Tee has three threaded ports of the same nominal pipe size.
The two straight connections form the main run, while the third connection creates a 90-degree branch. This design is commonly used where the branch pipe maintains the same diameter as the main pipeline.
For example:
1" × 1" × 1"
indicates an equal tee with the same nominal size at all three threaded connections.
Equal tees are frequently ordered by plumbing wholesalers, gas fitting distributors, fire protection suppliers and industrial piping contractors as part of standard threaded fitting inventories.
A Malleable Iron Reducing Tee uses different connection sizes within the same T-shaped fitting.
The most common configuration allows a smaller branch line to be taken from a larger main pipeline. Depending on the piping design, other reducing combinations may also be required.
Using one threaded reducing tee can eliminate the need to install a separate equal tee and reducing fitting, reducing the number of threaded joints in the pipeline.
Typical applications include:
• Smaller branch lines from main distribution pipes
• Fire protection branch connections
• HVAC distribution piping
• Compressed-air branch lines
• Water distribution networks
• Gas piping systems
• Industrial utility piping
Reducing tees require more detailed purchasing information than equal tees.
A size written only as:
1" × 3/4"
may be unclear because it does not identify which port is reduced.
For bulk procurement, we recommend specifying all three connection sizes and clearly identifying the run and branch.
For example:
Run: 1" × 1"
Branch: 3/4"
or:
1" × 3/4" × 1"
with a drawing showing the port sequence.
When submitting a large reducing tee RFQ, providing a simple fitting drawing or marked size schedule can prevent mistakes caused by different A × B × C notation practices between suppliers and markets.
Thread compatibility is essential when sourcing Malleable Iron Threaded Tees for international distribution.
HULU supports NPT and BSP thread requirements for different markets and piping systems.
NPT threaded fittings are widely used in North America and other markets following American pipe-thread standards.
An NPT Malleable Iron Tee is designed to connect compatible tapered threaded pipe and fittings in applications such as:
• Gas systems
• Fire protection
• Commercial plumbing
• Compressed air
• Industrial utility piping
BSP threaded fittings are widely specified in Europe, the Middle East, Asia, Africa and other international markets.
BSP configurations can be supplied according to the customer's technical and market requirements.
Buyers should always specify the required thread system before production.
Although nominal pipe sizes may appear similar, NPT and BSP threads differ in thread form and geometry. Mixing incompatible threads can lead to insufficient engagement, installation problems and leakage.
For distributors supplying several countries, different thread standards can be managed under separate SKUs, cartons or purchase-order lines.
Surface finish should be selected according to the piping medium, installation environment and project specification.
Black Malleable Iron Tees are commonly supplied for applications such as:
• Gas distribution
• Compressed air systems
• Steam piping
• Indoor industrial piping
• General mechanical services
They are also widely stocked by wholesalers carrying complete black threaded fitting ranges.
A Galvanized Malleable Iron Tee has a protective zinc coating to improve resistance to corrosion.
Galvanized tees are commonly selected for:
• Water distribution
• Humid environments
• Outdoor piping
• Building services
• Fire protection applications
• General utility piping
For customers requiring an entire galvanized fitting program, tees can be combined with elbows, couplings, unions, nipples and other Malleable Iron Pipe Fittings in one bulk purchase.
A threaded tee contains three connection ports, so dimensional and thread inconsistency can create more installation problems than with a simple two-port fitting.
Typical problems caused by poor machining include:
• Pipe threads that cannot be fully engaged
• Excessive installation resistance
• Cross-threading
• Inconsistent branch orientation
• Misaligned piping
• Poor sealing
• Leakage during pressure testing
• High rejection rates during installation
For distributors ordering thousands of fittings, even a small percentage of inconsistent threads can generate significant replacement, labor and after-sales costs.
Our quality inspection therefore focuses not only on casting appearance, but also on critical thread dimensions and fitting geometry before products are released for shipment.
Our Malleable Iron Threaded Tees are intended for commercial procurement rather than individual retail purchases.
Typical customers include:
• Pipe fitting wholesalers
• Plumbing distributors
• Building material importers
• Fire protection distributors
• Gas equipment suppliers
• HVAC wholesalers
• Industrial supply companies
• EPC contractors
• MEP contractors
• Infrastructure procurement companies
• Private-label pipe fitting brands
Bulk purchasing programs can include multiple equal tee and reducing tee sizes within one order.
For distributors building stock, we can also coordinate tees with other fitting types to create a more complete product assortment.
Large distributors rarely purchase only one tee size.
A typical inventory program may include:
• Equal tees
• Reducing tees
• 90 degree elbows
• 45 degree elbows
• Couplings
• Reducing couplings
• Unions
• Nipples
• Other threaded fittings
Consolidating these products with one supplier can simplify:
• Supplier management
• Specification confirmation
• Product inspection
• Packaging standards
• SKU management
• Shipping coordination
• Repeat-order consistency
Explore our complete Malleable Iron Pipe Fittings range if your purchase includes several threaded fitting types.
Consistency is one of the most important purchasing criteria for importers and distributors.
HULU applies quality control from raw material through casting, machining and finished-product inspection.
Raw materials and production inputs are inspected before casting to support stable mechanical properties and consistent casting quality.
Mold quality, pouring conditions and cooling processes are controlled during production to reduce common casting defects.
Dimensions, weight and surface condition are checked during manufacturing, with metallographic sampling incorporated into the production control process.
Critical dimensions and threads are inspected to confirm installation compatibility and help maintain reliable sealing performance.
For threaded tees, particular attention is paid to the three connection ports and branch geometry.
Factory-manufactured products undergo critical inspection, with pressure testing used to identify leakage or through-wall defects before shipment.
Appearance, surface treatment and product identification are checked before final packing.
Our quality control system is supported by ISO 9001 quality management practices.
For distributors and established pipe fitting brands, HULU supports OEM and private-label procurement.
Customization requirements can include:
• Cast or product markings
• Customer branding
• Carton design
• Product labels
• Barcode and SKU labels
• Size-specific packaging
• NPT or BSP configuration
• Black or galvanized finish
• Equal and reducing tee assortments
• Mixed fitting purchasing programs
Customers developing a private-label range can provide existing products, drawings, specifications or packaging artwork for evaluation.
The T-shaped structure makes the threaded tee one of the main branch fittings used in piping systems.
Threaded tees can create branch lines from distribution piping in fire protection installations where malleable iron threaded connections are specified.
Black Malleable Iron Tees are commonly used to divide or combine flow within compatible threaded gas piping systems.
Galvanized Malleable Iron Tees can be used in applicable water and utility piping systems where additional corrosion protection is required.
Threaded tees create branch connections in heating, cooling and building mechanical piping.
Factories, workshops and production facilities use threaded tees to create compressed-air distribution branches from the main line.
Depending on the specified temperature, pressure and engineering requirements, malleable iron tees can also be used in steam and general industrial service piping.
HULU has specialized in the foundry sector since 1995, developing an integrated system covering R&D, mold development, production and sales.
For bulk purchasers, our value is not limited to supplying one Malleable Iron Threaded Tee.
Long-term foundry experience supports material control, casting process development, machining and repeat production for cast iron products.
With more than 8,000 products across pipe fittings, valves and related pipeline components, we can support broader purchasing programs instead of isolated single-product sourcing.
Inspection covers raw material, casting production, thread and dimensions, pressure performance, surface condition and labeling.
Factory-manufactured fittings undergo critical screening before shipment, including pressure inspection and checks of important dimensions and threads.
Brand marking, packaging and other private-label requirements can be coordinated for distributor and OEM orders.
Equal and reducing tees can be purchased together with elbows, couplings, unions, nipples and other threaded fittings, helping distributors reduce the number of suppliers used for one product family.
For wholesalers and distributors, maintaining the same specifications from one shipment to the next is essential.
Our production and quality systems are designed to support recurring commercial orders and long-term supply programs.
For faster technical confirmation and quotation, please include:
Equal tee or reducing tee
Size of all three connections
Required quantity for each size
NPT or BSP thread requirement
Black or galvanized finish
Application or piping medium
Operating pressure and temperature if relevant
Required packaging
Customer branding or OEM requirements
Destination country or port
Any required inspection documents or technical specifications
For reducing tees, a marked drawing showing the run and branch sizes is strongly recommended.
A Malleable Iron Threaded Tee is a T-shaped threaded pipe fitting used to connect three pipes and create a 90-degree branch from a main pipeline. It is available in equal and reducing configurations.
A Malleable Iron Equal Tee has the same nominal size at all three connections.
A Malleable Iron Reducing Tee has at least one connection with a different nominal size, typically allowing a smaller branch pipe to connect to a larger main line.
Specify the sizes of all three threaded ports and clearly identify which dimension represents the branch.
For bulk procurement, we recommend including a drawing or marked diagram to avoid misunderstandings caused by different size-sequence conventions.
Yes. NPT threaded configurations can be supplied according to order specifications. Please state the required thread standard in your RFQ.
Yes. BSP thread configurations can also be supplied for markets and piping systems using BSP standards.
Yes. Black and galvanized surface options are available according to purchasing and application requirements.
Yes. Bulk orders can contain several equal and reducing tee sizes. This is particularly suitable for wholesalers, distributors and project procurement companies.
Yes. You can combine tees with elbows, couplings, unions, nipples and other Malleable Iron Pipe Fittings in one procurement program.
Yes. OEM requirements can include product markings, labels, carton designs, SKU identification and other packaging requirements. Send us your specifications or current packaging reference for evaluation.
Critical dimensions and threads are inspected as part of factory quality control. HULU also performs critical factory screening that includes pressure inspection, dimensions, threads, appearance and labeling.
If you are sourcing Malleable Iron Threaded Tees for wholesale distribution, private labeling or a pipeline project, send us your complete purchasing list.
Include the equal and reducing tee sizes, NPT or BSP requirement, black or galvanized finish, quantity for each SKU and packaging requirements.
We can quote threaded tees individually or combine them with elbows, couplings, unions, nipples and other malleable iron fittings to support a complete distributor or project purchasing program.
Contact HULU for bulk pricing, technical confirmation, OEM support and long-term supply of Malleable Iron Equal Tees and Malleable Iron Reducing Tees.
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