Stainless steel tees
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Threaded stainless steel tees
Tee fittings, commonly referred to as threaded tees, are fittings with three male threads. Tees are available in versions with metric threads with a 24° cone seat and in versions with British standard BSP threads with a 60° seat. Tees are used in hydraulic systems for branching (running an additional line). Tee fitting with male threads. Used in hydraulics for connections in oil systems. Material: 316L stainless steel. All tees are made from a monoblock which guarantees the highest quality! A monoblock is a single piece of steel subjected to mechanical processing. The connectors presented in the following category are made of acid-resistant steel; we also offer regular tees made of free-cutting steel with zinc coating. Metric tee composition: Metric version: The tee itself consists of a body without a cutting ring and nut. It is possible to order a complete metric tee according to PN-66 M-73133: Version A - Fitting body + 3 x cutting ring + 3 x nut;
What are stainless steel tees?
Stainless steel tees are connecting elements made of stainless steel that allow for flow branching in hydraulic and pneumatic systems. Their "T" shape design allows for the connection of three pipe sections or hoses, which is essential in many industrial applications.
Application of stainless steel tees
Stainless steel tees are used in many industries such as the food, chemical, pharmaceutical, and petrochemical industries. They are ideal for systems where high hygiene and resistance to aggressive media are required. They are used in water, oil, gas installations, and in systems for the transmission of other liquid and gaseous substances.
Stainless steel acid-resistant BBB hydraulic tees with male threads
Stainless steel BBB tees (acid-resistant equal male tees made of AISI 316 / 1.4571 acid-resistant steel) are top-class standardized power hydraulics fasteners designed for branching pressure lines and connecting three flexible hoses or pipes in environments exposed to aggressive chemical and atmospheric agents [1, 2]. The BBB-type design features the same external male thread on all three sides. Depending on the connection standard, sealing is performed on a 60° cone (for BSP inch threads) [3], on a 24° cone (for metric DIN 2353 threads) [4], or on JIC/ORFS cones. Construction from austenitic AISI 316 / 1.4571 (X6CrNiMoTi17-12-2) stainless steel guarantees absolute resistance to pitting corrosion, acid resistance, resistance to extreme temperatures (from -60°C to +400°C), and durability at high operating pressures reaching 350–400 bar [3, 4]. They are widely used in the chemical, food, pharmaceutical, marine, paper industries, and in high-pressure washing systems.
Application and technical characteristics of stainless steel BBB tees
Acid-resistant BBB equal-flow tees made of stainless steel have been constructed for trouble-free operation in places where traditional galvanized carbon steel fittings undergo immediate degradation and corrosion. They provide 100% mechanical tightness of the metal-metal cone contact surfaces without the need for additional sealants.
- Maximum acid and corrosion resistance: AISI 316 / 1.4571 grade steel with the addition of molybdenum and titanium protects the tee against the action of acids, salts, seawater, and corrosive substances [1, 2].
- Three male external threads (BBB / M-M-M): Equal thread sizes on all sides allow for symmetrical and trouble-free division of the working medium stream [3, 4].
- Wide selection of thread standards: Availability of variants with BSP inch threads (60° cone) [3], DIN 2353 metric threads (24° cone in L-light and S-heavy series) [4], and American JIC/ORFS.
- Resistance to high pressures and temperatures: Stable operation in the temperature range from -60°C to +400°C at working pressures reaching up to 400 bar [3, 4].
- Hygiene and sanitary requirements: The smooth surface of stainless steel allows for easy disinfection and cleaning in food and pharmaceutical installations.
Why choose stainless steel BBB tees at the HYDRON store?
BBB acid-resistant tees available at the HYDRON store are made in compliance with strict quality standards (ISO 8434-1, ISO 8434-6, BS 5200, DIN 2353) [3, 4]. Precise grinding of the cone contact surfaces eliminates the risk of micro-leakage and prevents damage to swivel nuts in pressure lines. High material quality excludes thread seizing and allows for repeated assembly and disassembly of the fitting. To create and service a complete acid-resistant system, we recommend other products from our offer, such as flexible industrial and hydraulic hoses, matching acid-resistant hose fittings, self-sealing test points and leak-free hydraulic quick couplings.
Technical specification
Technical parameter | Value / Description |
|---|---|
Product category | Stainless steel BBB tees (acid-resistant equal male tees) [3, 4] |
Body material | Acid-resistant stainless steel AISI 316 / 1.4571 / AISI 316L (X6CrNiMoTi17-12-2) [1] |
Connector type | BBB three-way tee (three male external threads M-M-M) [3, 4] |
Available thread standards | Inch BSP / BSPP (G 1/8" – 2") [3], Metric DIN 2353 (6L–42L / 6S–38S) [4], JIC, ORFS |
Sealing standard | 60° cone (BSP) [3], 24° cone (Metric DIN 2353) [4], 74° cone (JIC) |
Maximum working pressure | from 160 bar to 400 bar (depending on the standard and thread size) [3, 4] |
Operating temperature range | from -60°C to +400°C |
Compliance with standards | ISO 8434-6, BS 5200, DIN 2353, PN-EN ISO 8434-1 [3, 4] |
Frequently Asked Questions (FAQ)
What is the difference between stainless steel BBB tees and galvanized steel versions?
Stainless steel tees are made throughout their entire structure from austenitic AISI 316 / 1.4571 acid-resistant steel [1]. They do not have an external zinc coating, making them resistant to chemical corrosion, acids, brine, and very high temperatures [1, 2].
What applications are stainless steel BBB tees dedicated to?
They are used in the chemical industry, food processing, pharmacy, marine/shipyard installations, outdoor construction, and in touchless car washes and devices operating on aggressive working fluids.
How do BBB stainless steel tees seal?
Sealing occurs mechanically on the metal-to-metal cone contact surface (e.g., 60° in BSP or 24° in metric) when tightening the swivel nuts of the hoses [3, 4]. Using Teflon tapes or hemp on the cones is unnecessary [5].
Can a BBB stainless steel tee be screwed directly into a manifold or pump body?
No. BBB tees only have male threads with clamping cones [3, 4]. They do not have an ED face seal or an O-ring undercut [5]. For screwing into bodies, tee connectors with an ED seal are used.