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Catalogue

Neck Flanges

Weld Neck Flanges

Weld Neck Flanges Manufacturer and Stockist

Product Introduction

Advance Forging is a dedicated Manufacturer and Stockist of premium Neck Flanges located in Kolkata, West Bengal, Odisha, Chhattisgarh, and Assam. We provide prompt delivery services for standard-sized carbon steel weld neck flanges as well as stainless steel weld neck flanges. Neck Flanges are attached to the pipe by welding the pipe to the neck of the flange, which facilitates the transfer of stress from the weld neck to the pipe itself. This process also mitigates high stress concentration at the base of the hub of the Neck Flanges. Typically, Neck Flanges are utilized in high-pressure scenarios, where both hot and cold temperatures are present. The inside diameter of a Neck Flange is precisely machined to correspond with the inside diameter of the pipe.

Long Weld Neck Flanges

Long Weld Neck (LWN) Flanges are designed for use in high-pressure and high-temperature applications. Unlike standard weld neck flanges, they come with an extended hub or neck, which provides additional reinforcement.

Key Features:

  • Extra-long neck ensures smooth flow and reduces turbulence.
  • Ideal for stress distribution in critical piping systems.
  • Manufactured as per international standards (ANSI, ASME, DIN, etc.).
  • Available in carbon steel, stainless steel, and alloy steel.

Weld Neck Flanges

Weld Neck Flanges (WN) are the most widely used flanges in industrial piping. They feature a long tapered hub that gradually merges into the pipe, providing excellent strength and resistance against pressure and stress.

Key Features:

  • Strong connection due to full penetration weld.
  • Reduces risk of leakage in high-pressure pipelines.
  • Designed to withstand repeated bending and temperature fluctuations.
  • Available in different schedules and pressure ratings.

Orifice Weld Neck Flanges

Orifice Weld Neck Flanges are a special type of weld neck flange used with an orifice plate for the measurement of flow rate in a piping system. These flanges are typically installed in pairs with a meter run and tapped for pressure connections.

Key Features:

  • Comes with radial, tapped holesfor meter connections.
  • Ensures accurate flow measurement and monitoring.
  • Designed to handle high pressure and high temperature
  • Manufactured with precision to match orifice plates.

Our Facility, Primarily Utilized In Refineries

Advance Forging is recognized as a prominent Manufacturer and Stockist of Neck Flanges in Andhra Pradesh, Hyderabad, Telangana, Chennai, Uttar Pradesh, Bihar, Ahmedabad, and Gujarat, ensuring timely deliveries to our clients’ locations through our extensive distribution network. To meet the diverse needs of our esteemed clients, we are committed to providing Neck Flanges that are employed in various domestic, industrial, and commercial constructions and sectors. Our Neck Flanges are produced using high-grade stainless steel at our facility, primarily utilized in refineries and other piping-related industries. The supplying of Neck Flanges is conducted under the meticulous supervision of our experienced and knowledgeable team members, who closely oversee the entire production process to guarantee their quality. With extensive industry experience, we are well-equipped to supply top-quality Neck Flanges, which are frequently used in the Automotive Industry, Engineering Industry, Electrical Industry, Construction Industry, and beyond.

Neck Flanges Production Range:

Size:

1/2″ (15 NB) to 48″ (1200NB)

Standards:

ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings

Pressure Ratings:

Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.

Carbon Steel Weld Neck Flanges:

ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8

Stainless Steel Weld Neck Flanges:

ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L

Alloy Steel Weld Neck Flanges:

ASTM A182 F1, F5, F9, F11, F22, F91

Special Alloy Weld Neck Flanges:

Duplex, Super Duplex, Nickel Alloys

Flange Face Type:

Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Coating/Surface Treatment:

Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized

Value Added Services:

CNC Machining, Customised Flanges