PRODUCT FEATURES
M&F&M Tee — Product Features
Water treatment, plumbing systems, machinery piping, food & beverage, light chemical, heating & cooling circuits, pump and valve manifolds, process pipelines for flow splitting & merging where mixed male/female branch connection is required.
Product Feature
Buyer Notes
Product Feature
EN 10204 3.1 material test certificate available for bulk orders. OEM marking is acceptable. Samples can be arranged for dimension & thread verification before mass production. Please confirm thread type and size before order to prevent fitting mismatch on site.
OPERATING PRINCIPLE
How M&F&M Tee Works
1. **2M1F Threaded Configuration**: Features two male-threaded ends and one female-threaded end, forming a 90° branch for fluid distribution or convergence. Ideal for specialized piping layouts, eliminating the need for additional fittings.
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2. **Precision-Cast Construction**
Robust wall thickness with a dense, uniform metallurgical structure—free from porosity or sand holes—ensuring stable and reliable pressure-bearing performance.
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3. **AISI 304 Stainless Steel**
Offers excellent rust and corrosion resistance; suitable for use with fresh water, mildly corrosive media, and outdoor installations.
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4. **Precision-Machined Threads**
Available in various thread standards (NPT, BSPT, BSPP). Thread tolerances comply with ISO 7-1, DIN 2999, and ANSI B1.20.1 standards, guaranteeing a leak-free assembly.
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5. **150LB Pressure Rating**
Compliant with the ISO 4144 standard, suitable for general industrial piping systems.
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6. **Pickled and Passivated Surface**
Provides a uniform metal finish that further enhances corrosion resistance; supports custom marking on the fitting body.
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7. **Comprehensive Size Range**
Available in sizes from 1/2″ to 1″ (DN15 to DN25); supports OEM custom marking.
ENGINEERING DATA
Technical Specifications
Technical data supplied for M&F&M Tee. Ratings and material combinations should be confirmed for the selected configuration.
| PARAMETER | SPECIFICATION |
|---|---|
| Material | AISI 304 (1.4301 / ASTM A182 F304) |
| Type | 2M1F Threaded Tee, Two Male One Female Thread Tee |
| Thread Standard | NPT (ANSI B1.20.1) / BSPT / BSPP (ISO7/1, DIN2999) |
| Pressure Class | 150LB |
| Standard | ISO 4144 |
| Surface | Pickled & passivated |
| Working Temperature | -20℃ ~ +200℃ |
MECHANICAL DIMENSIONS
Dimensions & drawings.
Compare connection size with the corresponding overall length, bore and handle clearance dimensions from the supplied drawing.
Dimension chart
| SIZE | A | L | H |
|---|---|---|---|
| 1/2 | 57 | 56 | 37 |
| 3/4 | 74 | 74 | 49 |
| 1 | 86 | 86 | 59 |
Refer to the supplied dimension chart.
APPLICATIONS
Applications
Applicable media: the supplied document lists the following fluids. Actual compatibility depends on selected materials, concentration, temperature, pressure and the specific service conditions.
Application – Water Circulation
Cooling water, circulating water, drinking water and neutral purified water.
Application – Steam Piping
Clean, low-temperature saturated steam, subject to the product’s confirmed temperature and pressure limits.
Application – Compressed Air
Compressed air and nitrogen; verify compatibility for each system.
PURCHASING SUPPORT
Frequently Asked Questions
Find answers to common questions about sizing, materials, threaded connections and operating conditions.
1、 What is a Male Male Female Tee (M×M×F Threaded Tee)?
It is a T-shaped threaded pipe fitting. The two ports on the straight run are **external male threads**, and the side branch port is **internal female thread (M×M×F)**. It is used to split or combine fluid flow in pipelines. The female branch thread receives male threaded nipples, gauges or pipe connections.
> Note: Differentiate from F×F×F full female tee, M×M×M full male tee, and F×M×F tee.
2、 What is the difference between M×M×F Tee and F×M×F Tee?
– M×M×F Tee: Straight run ports are male thread, branch is female thread. Two male ends screw into female pipe ports, branch accepts male thread fittings.
– F×M×F Tee: Straight run ports are female thread, branch is male thread. Two female ends receive male pipe, branch screws into female equipment port.
3、 What thread standards are available?
NPT (ANSI B1.20.1), BSPT / BSPP (ISO7/1, BS EN 10226). Metric thread M available for custom order.
> Important reminder: NPT and BSPT are not fully interchangeable. Wrong thread match will cause leakage. Please specify thread standard clearly on inquiry or PO.
4、 What materials can you supply?
– Stainless steel 304 / 316L (corrosion resistant, water, gas, chemical, instrument piping)
5、 What applications?
Water supply, compressed air, natural gas, fire protection, HVAC, instrument piping, oil, low & medium pressure industrial pipeline, plumbing systems.
6、What applications?
Water supply, compressed air, natural gas, fire protection, HVAC, instrument piping, oil, low & medium pressure industrial pipeline, plumbing systems.
7、Can you provide MTC material certificate?
Yes, EN10204 3.1 MTC with heat number is available. EN10204 3.2 third-party certificate can be arranged at buyer’s extra cost.
8、Surface finish options?
Standard: pickled matte finish.
9、Can you do laser marking?
Yes. We can mark size, grade, heat number, customer logo or brand on the flats.
10、Packaging for sea shipment?
Male threads are protected by plastic thread caps. Packed into export cartons, then loaded on fumigated wooden pallets with waterproof stretch film to avoid scratch and thread damage.
11、What is the lead time?
Typically, shipments are dispatched within 7–15 days of receiving the deposit, depending on the order quantity.
12、How is quality controlled?
Raw material inspection → CNC machining → Thread inspection → Hydrostatic testing → Visual inspection → Final dimensional verification before packaging.
13、Which Incoterms are available for overseas buyers?
We offer FOB (Free On Board) terms, with the shipment originating from a Chinese port. We will provide a commercial invoice, packing list, and bill of lading for import customs clearance.
14、Which Incoterms are available for buyers?
We offer FOB (Free On Board) or CIF (Cost, Insurance, and Freight) terms, with shipments originating from a Chinese port. We will provide a commercial invoice, packing list, and bill of lading for customs clearance.
15、What should be done if the threads are found to be defective or do not meet requirements upon arrival?
Please provide photos, videos, and inspection records. We will assess the root cause; depending on the contractual terms, solutions may include product replacement, a partial refund, or a reshipment.
M&F&M Tee
304 Stainless Steel 2M1F Threaded Tee,150LB Two Male One Female Thread Tee, BSP/NPT Thread Available SS304 cast tee with two male threads and one female thread. 3-way fitting for flow split and combination. Mixed thread design saves extra adapters for branch piping. Corrosion resistant for industrial threaded piping. MTC certificate available.
Type:M&F&M Tee
Material: 304/316L stainless steel
Nominal diameter: 1/2”–1” (D15–DN25)
Rated pressure: 150LB
Connection type: Threaded connection (BSPT / BSPP / NPT)
