PRODUCT FEATURES
M&F&F 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&F Tee Works
1. **2F1M thread structure**: Two female thread ends + one male thread end, creates a 90° branch for flow distribution or merging, convenient for special piping layout without extra connectors.
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2. **Precision cast construction**
Robust thick wall body, dense metallurgical structure without porosity or sand holes, stable pressure bearing capacity.
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3. **AISI 304 stainless steel**
Excellent rust and corrosion resistance for fresh water, weak corrosive media and outdoor installation.
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4. **Precision machined threads**
NPT / BSPT / BSPP optional, thread tolerance complies with ISO7-1 / DIN2999 / ANSI B1.20.1 for leak-free assembly.
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5. **150LB pressure class**
Compliant with ISO 4144 standard for general industrial piping service.
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6. **Pickled & passivated surface**
Uniform metallic finish, enhanced anti-corrosion property, body marking available.
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7. **Full size range**
1/2″ ~ 1″ (DN15 ~ DN25), OEM marking supported.
ENGINEERING DATA
Technical Specifications
Technical data supplied for M&F&F Tee. Ratings and material combinations should be confirmed for the selected configuration.
| PARAMETER | SPECIFICATION |
|---|---|
| Material | AISI 304 (1.4301 / ASTM A182 F304) |
| Type | 2F1M Threaded Tee, Two Female One Male 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 | d | A | L | H |
|---|---|---|---|---|
| 1/2 | 27 | 38 | 62 | 40 |
| 3/4 | 31 | 44 | 70 | 42 |
| 1 | 40 | 52 | 83 | 56 |
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 Female Female Male Tee (F×F×M Threaded Tee)?
It is a T-shaped threaded pipe fitting. The two ports on the straight run are **female internal threads**, and the side branch port is **external male thread (F×F×M)**. It is used for diverting or combining fluid flow in piping systems. The male threaded side branch can directly screw into female threaded ports of gauges, valves or equipment.
> Note: Distinguish from F×F×F full female tee, M×M×M full male tee, F×M×F tee and M×M×F tee.
2、 What is the difference between F×F×M Tee and F×M×F Tee?
– F×F×M Tee: Straight run = female thread; **side branch = male thread**.
– F×M×F Tee: Straight run = female thread; **middle branch = male thread** (male port is on the top center of the tee body).
> The difference lies in the position of the male thread: F×F×M male thread is on the side outlet, while F×M×F male thread is on the vertical top outlet.
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&F Tee
**304 Stainless Steel 2F1M Threaded Tee,150LB Two Female One Male Thread Tee, BSP/NPT Thread Available**
SS304 cast tee with two female threads and one male 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&F Tee
Material: 304/316L stainless steel
Nominal diameter: 1/2”–1” (D15–DN25)
Rated pressure: 150LB
Connection type: Threaded connection (BSPT / BSPP / NPT)
