Zhejiang Daye Flange Co., Ltd. is one of the leading manufacturers and suppliers of ss 316l threaded 90 degree elbow 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 ss 316l threaded 90 degree elbow in stock here from our factory. Also, quotation is available.
Threaded 90 degree elbow are threaded pipe fittings designed to alter pipeline flow direction by 90 degrees. Most models feature internal taper pipe threads at both ends, forming detachable connections with externally threaded pipes, valves, instruments and other components through threaded engagement.
Key functions of ss 316L threaded 90 degree elbow: redirecting pipeline flow, reducing fluid pressure loss, and delivering integrated corrosion resistance and pressure-bearing performance.
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
- Flexible and efficient installation
- High pressure-bearing reliability
- Broad application adaptability
Applications
Petrochemical industry
Water treatment and environmental protection
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 SS 316L threaded 90 degree elbow?
A: SS 316L threaded 90 degree elbow with NPT American taper pipe threads is standard for industrial high‑pressure applications, achieving a metal-to-metal seal via tapered interference fit. For European standard systems, R taper threads or G parallel pipe threads are widely used - G threads require matching sealing gaskets.
Q: What pressure rating does a Class 3000 threaded elbow correspond to in bar?
A: Class 3000 is an American standard pressure class. At ambient temperature, it equals a nominal pressure of roughly PN320 (320 bar). Within the same system, Class 2000 corresponds to PN160 and Class 6000 to PN420. Actual allowable working pressure drops as medium temperature rises, and must be derated based on the material's high-temperature allowable stress.
Q: Why do 316L threaded elbows easily gall (seize up) during installation?
A: 316L stainless steel has high material adhesion and ductility. When threads are tightened, friction-generated heat on the contact surfaces easily triggers cold welding and bonding - this is the galling (seizure) effect.
Q: Can threaded elbows directly replace butt-weld elbows in service?
A: Uncontrolled substitution is not recommended. Threaded elbows allow quick assembly/disassembly and require no hot work, but they have a lower maximum pressure rating and poorer long-term sealing reliability than equivalent butt-weld elbows. Thread gaps also tend to trap media and create localized corrosion risks.Butt-weld elbows are the first choice for main pipelines under high pressure, handling highly toxic/flammable/explosive media, or for permanent service. Threaded elbows are better suited for medium/low-pressure branch or instrument lines that need frequent disassembly, or for job sites where hot work is forbidden.
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