• Home
  • Our Product Range
    • Control Valve
      • Pneumatic Control Valve
        • Pneumatic Angle Control Valve
        • 3 Way pneumatic Diaphragm Control Valve
        • 3 Way Converging and Diverging Control Valve
        • Fluorine Lined Single Seat Control Valve
        • Pneumatic Cage Control Valve
        • Pneumatic Double Seat Control Valve
        • Pneumatic Single Seat Globe Control Valve
        • Pneumatic Flow Control Valve
        • Pneumatic Sleeve Type Control Valve
        • Pneumatic Actuated Globe Type Control Valve
      • Electric Actuated Control Valve
        • Electric 3 Way Control Valve
        • Electric Cage Type Control Valve
        • Electric Double Seat Control Valve
        • Electric O-type Shut off Control Valve
        • Electric Single Seat Control Valve
        • Electric Globe Control Valve
    • Cryogenic Valve
      • Cryogenic Emergency Cut Off Valve
      • Cryogenic Short Stem Globe Valve
      • Cryogenic Long Stem Globe Valve
      • Cryogenic Steam Jacket Globe Valve
      • Forged Cryogenic Trunnion Ball Valve
      • Cryogenic Ball Valve
      • Cryogenic Gate Valve
      • Cryogenic Check Valve
      • Cryogenic Pneumatic Actuated Globe Valve
    • Pressure Reducing Valve
      • Direct Acting Pressure Reducing Valve
      • Steam Pressure Reducing Valve
      • Water Pressure Reducing Valve
      • Pilot Operated Pressure Reducing Valve
      • Pressure Relief and Sustaining Valve
      • Float Control Valve
    • Safety Valve
      • Steam Safety Valve
      • Pressure Safety Valve
      • Thermal Safety Valve
      • Bellow Safety Valve
      • Pilot Operated Safety Valve
      • Conventional Safety Valve
    • Check Valve
      • Dual Plate Lug Check Valve
      • Dual Plate Wafer Check Valve
      • Single Plate Check Valve
      • Lift Check Valve
      • Non Slam Swing Check Valve
      • Pressure Seal Check Valve
      • Tilting Disc Check Valve
      • Swing Check Valve
      • Forged Steel Check Valve
    • Gate Valve
      • Rising Stem Gate Valve
        • Rising Stem Cast Iron Gate Valve
        • Rising Stem Carbon Steel Gate Valve
        • Rising Stem Ductile Iron Gate Valve
        • Rising Stem Stainless Steel Gate Valve
      • Non Rising Stem Gate Valve
        • NRS Cast Iron Gate Valve
        • NRS Carbon steel Gate Valve
        • NRS Ductile Iron Gate Valve
      • Forged Steel gate Valve
      • Double Disc Gate Valve
      • Pressure Seal Gate Valve
    • Butterfly Valve
      • Wafer Butterfly Valve
      • Lug Butterfly Valve
      • Double Flanged Butterfly Valve
      • Double Eccentric Butterfly Valve
      • Triple Eccentric Butterfly Valve
    • Globe Valve
      • Iron Globe Valve
        • Cast Iron Globe Valve
        • Ductile Iron Globe Valve
      • Steel Globe Valve
        • Carbon Steel Globe Valve
        • Stainless Steel Globe Valve
      • Bellow Seal Globe Valve
        • Carbon Steel Bellow Seal Globe Valve
        • SS304 Bellow Seal Globe Valve
        • SS316 Bellow Seal Globe Valve
      • Angle Globe Valve
      • Forged Steel Globe Valve
      • Y Type Globe Valve
      • Pressure Seal Globe Valve
    • Ball Valve
      • Trunnion Ball Valve
        • Casting Trunnion Ball Valve
        • Forged Trunnion Ball Valve
      • Double Block and Bleed Ball Valve
      • Fully Welded Ball Valve
      • Jacketed Ball Valve
      • Forged Steel Ball Valve
        • 2 Piece Forged Steel Ball Valve
        • 3 Piece Forged Steel Ball Valve
      • Cast Iron and Cast Steel Ball Valve
        • 1 Piece Cast Iron Screwed Ball Valve
        • 2 Piece Cast Steel Ball Valve
        • 3 Piece Cast Iron Ball Valve
        • 3 Piece Cast Steel Ball Valve
      • Floating Ball Valve
        • Casting Floating Ball Valve
        • Forged Floating Ball Valve
      • Investment Casting Ball Valve
        • 1 Piece Ball Valve
          • 1 Piece Flanged Ball Valve
          • 1 Piece Screwed Ball Valve
        • 2 Piece Ball Valve
          • 2 Piece Flanged Ball Valve
          • 2 Piece Screwed Ball Valve
        • 3 Piece Ball Valve
          • 3 Piece Flanged Ball Valve
          • 3 Piece Screwed Ball Valve
    • Electric Actuated Valve
      • Electric Actuated Ball Valve
        • Electric Actuated 2 Piece Ball Valve
          • Electric Actuated 2 Piece Flanged Ball Valve
          • Electric Actuated 2 Piece Screwed Ball Valve
        • Electric Actuated Three Piece Ball Valve
        • Electric Actuated Three Way Ball Valve
        • Electric Actuated Floating Ball Valve
        • Electric Actuated Trunnion Ball Valve
          • Electric Actuated Casting Trunnion Ball Valve
          • Electric Actuated Forged Trunnion Ball Valve
      • Electric Actuated Butterfly Valve
        • Electric Actuated Wafer Butterfly Valve
        • Electric Actuated Lug Butterfly Valve
      • Electric Actuated Gate Valve
      • Electric Actuated Globe Valve
    • Pneumatic Actuated Valve
      • Pneumatic Actuated Ball Valve
        • Pneumatic Actuated 2 Piece Ball Valve
        • Pneumatic Actuated 2 Piece Flanged Ball Valve
        • Pneumatic Actuated Three Piece Ball Valve
        • Pneumatic Actuated Three Piece Flanged Ball Valve
        • Pneumatic Actuated Three Way Ball Valve
        • Pneumatic Actuated Three Way Flanged Ball Valve
        • Pneumatic Trunnion Ball Valve
      • Pneumatic Actuated Gate Valve
      • Pneumatic Actuated Globe Valve
      • Pneumatic Knife Gate Valve
        • Pneumatic Unidirectional Knife Gate Valve
        • Pneumatic Bidirectional Knife Gate Valve
      • Pneumatic Actuated Butterfly Valve
        • Pneumatic Actuated Wafer Butterfly Valve
        • Pneumatic Actuated Lug Butterfly Valve
        • Pneumatic Actuated Flanged Butterfly Valve
    • Plunger Valve
    • Strainers
      • Simplex Basket Strainer
      • Duplex Basket Strainer
      • Y Strainer
    • Steam Trap
      • Ball Float Steam trap
      • Bimetallic Steam Trap
      • Inverted Bucket Steam Trap
      • Thermodynamic Steam trap
      • Thermostatic Steam trap
    • Knife Gate Valve
      • Unidirectional Knife Gate Valve
      • Bidirectional Knife Gate Valve
      • Flanged Knife Gate Valve
      • Slurry Knife Gate Valve
      • Through Conduit Knife Gate Valve
    • Speciality Valve
      • Alloy Valve
        • Alloy Gate Valve
        • Alloy 20 Globe Valve
        • Alloy Check Valve
          • Alloy Swing Check Valve
          • Alloy Dual Plate Check Valve
        • Alloy Butterfly Valve
          • Alloy Wafer Butterfly Valve
          • Alloy Lug butterfly Valve
        • Alloy Ball Valve
          • Alloy Floating Ball Valve
          • Alloy Trunnion Ball Valve
      • Duplex Valve
        • Duplex Gate Valve
        • Duplex Globe Valve
        • Duplex Check Valve
          • Duplex Swing Check Valve
          • Duplex Dual Plate Check Valve
        • Duplex Butterfly Valve
          • Duplex Wafer Butterfly Valve
          • Duplex lug Butterfly Valve
        • Duplex Ball Valve
          • Duplex Floating Ball Valve
    • Triple Duty Valve
    • Suction Diffuser Valve
    • Diaphragm Valve
      • Cast Iron Diaphragm Valve
      • Ductile Iron Diaphragm Valve
    • Plug Valve
      • Lubricated Plug Valve
      • Non Lubricated Plug Valve
      • Jacketed Plug Valve
      • Connection lift Plug Valve
      • Eccentric Plug Valve
      • 3 Way plug Valve
      • Twin Seal Plug Valve
      • Orbit Plug Valve
    • Foot Valve
    • Air Valve
      • Single Orifice Air Valve
      • Double Orifice Air Release Valve
      • Double Orifice Kinetic Air Valve
    • Surge Anticipator Valve
    • Needle Valve
    • Balancing Valve
  • Other Products
    • Flanges
      • Weld Neck Flange
      • Slip On The Flange
      • Socket Weld Flange
      • Screwed Flange
      • Blind Flange
      • Lap Joint Flange
    • API 6A Valves
      • API 6A Gate Valve
        • Slab Gate Valve
        • Mud Gate Valve
        • Expanding Gate Valve
      • API 6A Check Valve
        • API 6A Swing Check Valve
        • T Pattern Piston Check Valve
      • API 6A Ball Valve
  • Blog
  • Contact us
Login / Register
Wishlist
0 items / $0.00
Menu
0 items / $0.00
Awaiting product image
Click to enlarge
Home Flanges Weld Neck Flange Weld Neck Flange
Alloy 20 Globe Valve
Back to products
Alloy Gate Valve

Weld Neck Flange

Custom Enquiry
Compare
Add to wishlist
Category: Weld Neck Flange
Share:
  • Description
  • Reviews (0)
  • Shipping & Delivery
Description

Welded Neck Flange

Welded neck flange as the name suggests has a long tapered hub(neck). It is butt welded with the pipe through the hub inserted in the pipe. This long tapered hub is useful in severe conditions, sub-zero, and elevated temperatures. This hub (neck) is only responsible for transmitting pressure or stresses to the pipeline.

The bore of the welded neck flange is matched with the pipeline’s bore to allow the material’s free flow. This is also done to reduce erosion and disturbance in the pipeline. Welded neck flange ensures that there is no high pressure at the bottom of the flange as it relocates the stress to the pipe. This flange is useful for water, hydrocarbons, vapors, gases, food fluids, and corrosives.

Dimensions: 1/2”, 2”, 3”, 4”, 6”, 8”, 10”, up to 24”.
Class range: Class 150 to 2500(# or LB). PN 2.5 to PN 250.
Flange face type: RF (Raised Face), RTJ (Ring Type Joint)

Types:

  • Long weld neck flange-

A long weld neck flange is a normal weld neck flange with an elongated hub or neck. It is like a nozzle attached to the pipe. They are specially designed for heavy pressure and temperature applications. Lengths are based on the parts needed for each application, so no universal standard length exists for these industrial long neck flanges. These connections improve the pipe flow. This keeps the piping system safe.

  • Reducing weld neck flange-

These flanges are used to connect 2 different diameter pipes. Reducing weld neck flange as the name suggests has a reducing neck that is being welded with the pipe. These are considered ideal for connecting 2 different-sized flanges. It has 1 large flange and one small flange connected by a neck or hub in the middle. The small flange will be again connected with a pipe. Thus, the material will flow from a smaller flange to a larger flange. If this is reversed, then it can cause severe turbulence in the system.  Reducing weld neck flange is used to reduce the speed or pressure of the material flowing through the pipe. They are available in classes of 150-2500.

  • NW Long weld neck flange- As the name suggests, NW long weld neck flange has a very long hub or neck. These are known as high hub flanges. These are designed to reduce the high stress from the bottom of the flange and transfer it to the pipe. The main purpose of the NW Long weld neck flange is to decrease the stress concentration from the bottom of the flange. NW long welding neck flange is the most suitable butt welding flange for design.

Materials: 304/304L (1.4301/1.4307) • 321/321H (1.4541)
316/316L (1.4401/1.4404) • 316Ti (1.4571)
904L (1.4539) • (Super)Duplex • Nickel Alloys

Material Standards

  • ASTM A105/N For carbon steel weld neck flange
  • ASTM A182 F11, F22 for alloy steel
  • ASTM A182 F304 / F304L, F316 / F316L for stainless steel weld neck flange.

Manufacturing Standards

  • ASME B16.5
  • ASME B16.47
  • BS 3293
  • DIN 2630 PN 1 and PN 2.5, 2631 PN 6, 2632 PN 10, 2634 PN 16, 2634 PN 25, 2635 PN 40

Uses of weld neck flanges:

  • These flanges are ideal for extreme fluctuations in temperature.
  • They are ideal in environments where there may be a lot of bending and handling of the flanges.
  • Preferred in an environment with extreme temperature conditions.
  • This type of flange is preferred for every severe service condition—resulting from high pressure or sub-zero elevated temperature.
  • They are used in situations where loading conditions are substantially constant or fluctuate between wide limits.
  • This is probably the best welding flange available because of its high, heavy neck.
Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “Weld Neck Flange” Cancel reply

Your email address will not be published. Required fields are marked *

Shipping & Delivery
wd-ship-1
wd-ship-2

MAECENAS IACULIS

Vestibulum curae torquent diam diam commodo parturient penatibus nunc dui adipiscing convallis bulum parturient suspendisse parturient a.Parturient in parturient scelerisque nibh lectus quam a natoque adipiscing a vestibulum hendrerit et pharetra fames nunc natoque dui.

ADIPISCING CONVALLIS BULUM

  • Vestibulum penatibus nunc dui adipiscing convallis bulum parturient suspendisse.
  • Abitur parturient praesent lectus quam a natoque adipiscing a vestibulum hendre.
  • Diam parturient dictumst parturient scelerisque nibh lectus.

Scelerisque adipiscing bibendum sem vestibulum et in a a a purus lectus faucibus lobortis tincidunt purus lectus nisl class eros.Condimentum a et ullamcorper dictumst mus et tristique elementum nam inceptos hac parturient scelerisque vestibulum amet elit ut volutpat.

Middle East Valve-logos_black
  • Home
  • Our Product Range
  • Other Products
  • Blog
  • Contact us
MIDDLE EAST VALVE 2022 CREATED BY SVR GLOBAL SOLUTIONS.
payments
  • Menu
  • Categories
  • Home
  • Blog
  • Contact us
  • Our Product Range
  • Wishlist
  • Compare
  • Login / Register
Shopping cart
close

Sign in

close

Lost your password?

No account yet?

Create an Account
Start typing to see products you are looking for.

Product Enquiry








    Shop
    Wishlist
    0 items Cart
    My account