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Superior Structural Integrity Long Neck Flange ASME B16.5 DN80 Class 150

Categories Alloy Steel Flanges
Brand Name: TOBO
Model Number: Alloy Steel Flanges
Certification: ISO/TUV/SGS
Place of Origin: Shanghai, China
MOQ: 1 pcs
Price: Negotiation
Payment Terms: MoneyGram, MoneyGram, Western Union, T/T, D/A, L/C, D/P
Supply Ability: 10000Pcs/month
Delivery Time: 15-25days
Packaging Details: the wooden case
Product Name: Long Neck Flange
Standrad: ASME B16.5
Materials: N07718
Corrosionresistance: High
Temperature Rating: -20°F to 1000°F
Standard: DIN
Alloy Or Not: Non-alloy
Connectiontype: Welded or Threaded
Port: Shanghai, Ningbo, Etc.
Flange Type: Weld Neck
Payment Term: T/T or others
Temperaturerange: -50°C to 600°C
Material: Alloy Steel
Package: As customer requirment
Corrosion Resistance: High
Technique: Forged
Company Info.
TOBO STEEL GROUP CHINA
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Superior Structural Integrity Long Neck Flange ASME B16.5 DN80 Class 150

Superior Structural Integrity Long Neck Flange ASME B16.5 DN80 Class 150

1. Product Description

A Long Weld Neck Flange (LWN Flange) is a type of piping component specifically designed for high-integrity connections. Its defining feature is an extended tapered hub (neck) , which is connected to the pipe via a butt weld . This design is engineered to provide exceptional strength and is typically manufactured from forged and heat-treated materials for superior mechanical properties . It is primarily used to connect pressure vessels, heat exchangers, and pumps to piping systems, or to connect piping segments to one another .
2. Key Product Parameters
The table below summarizes the essential technical specifications for Long Weld Neck Flanges:
Parameter Details
Types & Codes Long Weld Neck Flange (LWN), High Hub Flange
Applicable Standards ASME B16.5 , HG/T 20615-2009 (American Class Series) , Client-specific drawings
Nominal Diameter (DN/NPS) Wide range available, commonly from 1/2 inch (DN15) to 24 inches and larger
Pressure Ratings American System (Class): Class 150 to Class 2500 . Suitable for high-pressure applications .
Sealing Face Types Raised Face (RF), Male-Female (MFM), Ring Joint (RJ), among others .
Common Materials Carbon Steel, Stainless Steel (e.g., 304, 316L) , Alloy Steel .
Manufacturing Process Forging and heat treatment , precision machining via CNC .
3. Product Applications
Long Weld Neck Flanges are built for demanding services and are widely used in critical industries , including:
Petrochemical Plants
Oil & Gas pipelines and facilities
Power Generation
Heavy Industries
Boilers and Pressure Vessels
Shipbuilding
4. Product Advantages
Excellent Structural Integrity & Stress Distribution: The long, tapered hub provides a smooth transition from the pipe to the flange, significantly reducing stress concentration and increasing rigidity, which helps the flange withstand high temperatures and pressures .
Superior Sealing Performance: The robust construction and various sealing face options make it ideal for maintaining a leak-tight seal in severe service conditions .
Enhanced Durability: The use of forged and heat-treated materials provides outstanding mechanical attributes, offering resistance to deformation and fatigue .
Reliable Connection: The butt weld connection ensures a strong, integral bond with the piping .

Long Neck Flange

Surface Treatment
Polished
place of origin
Jiangsu, China
model number
AFL301
brand name
yiming
Product name
J518 Stainless Steel Hydraulic Split Flange
Flange Type
Socket Weld SAE Flange
Weight
0.5KG
Product features
Integrated molding, corrosion resistance,high pressure resistance
Warranty
1 Year
Packing
Standard Packing
Material of flange
Stainless Steel
Application
Industrial
FAQ
Q:Are you a manufacturer or a trader?
A:We are not only a professional manufacturer of PE pipes, but also a trusted trading partner. From raw material procurement, manufacturing to global delivery, we provide customers with seamless one-stop services to ensure that product quality, delivery and service are controllable.
Q: Can we get some samples? Is there a fee?
A:Yes, we will provide you with the required samples. Samples are free, but customers may have to pay for shipping.
Q:What is your delivery time?
A: Different products and purchase quantities have different lead times,Commonly used specifications of goods generally take 5-10 days.
Q. What’s your main market?
A: Our main market is African, Middle East Countries, South American, Asian.
Buy Superior Structural Integrity Long Neck Flange ASME B16.5 DN80 Class 150 at wholesale prices
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