Zhejiang Daye Flange Co., Ltd. is one of the leading manufacturers and suppliers of high pressure forged threaded tee in China. With abundant experience, we are committed to providing high quality flanges made in China with competitive price. We warmly welcome you to buy durable high pressure forged threaded tee in stock here from our factory. Also, quotation is available.
High pressure forged threaded tee are a core type of high-pressure forged pipe fitting. Integrally forged from solid metal bar stock, all three ports are machined with internal taper pipe threads, designed for flow branching and confluence in small-bore high-pressure piping systems.
They achieve mechanical fastening and sealing purely through thread engagement with no welding required. Their pressure-bearing capacity far exceeds that of cast threaded equivalents, making them the most widely used diverting connection component for high-pressure small-bore pipelines. They fall into two categories: equal tees (all three ports share the same size) and reducing tees (the main run and branch differ in specification).
Core functions of high pressure forged threaded tee: pipeline flow branching and confluence, reliable sealing and pressure resistance under high-pressure service conditions, and weld-free quick installation.
Parameters
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Standard: |
GB/T14383-2008, ASME B16.11, BS 3799, EN 10241, ISO 49 |
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Size: |
NPS:1/8" ~ 4" |
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Rating: |
Class2000-Class9000 |
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Grade: |
Stainless steel: 304/304L, 316/316L, 321,316Ti, 347/347H, 310S Super stainless steel: 254SMO/F44, 904L Duplex steel: F51/2205, F53/2507 Special alloy steel:Inconel(625,600,718,750,601), Hastelloy(276,C-22,C-4,C,X,B-2), Monel(400,500), Incoloy(800,825,020,028,925), etc |
Product Advantage
- Excellent pressure-bearing capacity
- Convenient and efficient installation
- Compact, space-saving structure
Applications
Petrochemical industry
Oil and gas fields and gathering systems
Hydraulic and pneumatic systems
Test
Mill certificate,100%PMI,Tensile Test,Hardness Test,Impact Test,IC Test,etc.it depends on the requirements.
Cerfitications
PED
PED
ISO 45001
ISO 9001
ISO 14001
Packaging
Outer Packaging:
Fumigated wooden crates/Fumigation-free plywood crates/Customized wooden crates
Inner Packaging:
Plastic flange protectors/Bubble wrap/Cardboard/Protective paper
Packaging can be customized to meet your specific requirements.
FAQ
Q: What thread types are commonly used for high pressure forged threaded tee? Are seals mandatory?
A: The globally standard NPT American taper pipe thread (compliant with ASME B1.20.1) creates a metal-to-metal seal through the interference fit of its tapered profile. G straight pipe threads, common in European standard systems, require matching sealing gaskets. For high-pressure service, thread sealant or PTFE sealant paste is recommended. Relying solely on PTFE thread tape is not advised, as it risks seal failure under high pressure.
Q: How to choose between forged and cast threaded tees?
A: Forged tees are required for high-pressure applications (PN160 and above). Forged components have a dense, defect-free microstructure with superior pressure-bearing and impact resistance, making them suitable for industrial high-pressure systems and hazardous media. Cast threaded tees cost less but have a lower pressure rating (typically PN16 to PN40), and are only fit for low-pressure water supply/drainage and general domestic gas services.
Q: What is the proper tightening standard for threaded tee installation?
A: For taper threads, follow the standard "hand-tight + wrench-tight" procedure: first screw in by hand until it stops (hand-tight position), then tighten 2 to 3 additional threads with a pipe wrench for a proper fit. Over-tightening can cause thread cracking or fitting rupture, while insufficient thread engagement leads to seal failure and reduced pressure capacity.
Q: Do stainless steel threaded tees suffer from thread galling? How can it be prevented?
A: Stainless steel threads are prone to galling (seizure) during tightening due to the cold welding effect. Effective prevention measures include applying an even coat of copper-based anti-seize compound or molybdenum disulfide grease to the thread surfaces before installation, controlling tightening torque, and avoiding forced over-tightening.
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