Weld Neck Flange carbon steel ASME B16.5
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Specification
A weld neck flange (also known as a high-hub flange and tapered hub flange
) is a type of flange. Weld Neck Flange is easy to recognize at the long tapered hub, that goes gradually over to the wall thickness from a pipe or fitting.
There are two designs. The regular type is used with pipes. The long type is unsuitable for pipes and is used in process plant. A weld neck flange consists of a circular fitting with a protruding rim around the circumference. Generally machined from a forging, these flanges are typically butt welded to a pipe. The rim has a series of drilled holes that permit the flange to be affixed to another flange with bolts.
Such flanges are suitable for use in hostile environments that have extremes of temperature, pressure or other sources of stress. The resilience of this type of flange is achieved by sharing the environmental stress with the pipe with which it is welded. This type of flange has been used successfully at pressures up to 5,000 psi.
These flanges are bored to match the inside diameter of the mating pipe or fitting so there will be no restriction of product flow. This prevents turbulence at the joint and reduces erosion. They also provide excellent stress distribution through the tapered hub and are easily radio-graphed for flaw detection.
Weld neck flange will be welded to a pipe or fitting with a single full penetration, V weld (Butt-weld).
Flange Type | Welding Neck flange, Slip-On; Socket Welding, Blind, Thread, Lap-joint; Long Welding Neck; Orifice; All flanges in Raised Face, Flat face and RTJ; |
Material | ASTM A105; A350 LF2; A694 F42, F46, F52, F56, |
Size | 1/2”~60”, as the clients’ requests; |
Pressure | Class: 150 300 400 600 900 1500 2500; PN6,PN10,PN16,PN25,PN40;5K,10K,16K,20K,30K |
Standard | ASME B16.5, ASME B16.47, MSS SP43, EN1092，DIN, JIS; |
- Q: What is the silk flange?
- Generally refers to the pipe, pipe connections, the commonly used way is divided into: silk and flange two. The screw thread is a screw thread connection; the flange is to weld the two end of the connecting pipe on the convex ring, drill a few holes, and penetrate the bolt in the hole to connect.
- Q: Flange PL40 (B)What does PL40 mean in flange PL40 (B) -1.6RF304HG20593-97?
- PL 'flat welding flange 40 nominal diameter DN40
- Q: WF face flangeI'd like to ask what flange form WF is,
- written in WF flange?Supplement:1. flange connection points by welding, butt welding for (SO) (WN), socket welding (SW), (LJ), loose thread (PT).
- Q: To set the price
- I checked it on the InternetThere are several kinds of this one you say
- Q: WN, SO, BL, TH, LJ and SW are the abbreviations of what words are. How do you translate Chinese? Class 150 is the stress level. Does that mean the pressure is 150 Bar? Thanks
- [note] the nominal pressure of 2, not less than or equal to 2.0MPa design pressure can use the pressure level of the flange, flange at different temperatures and different materials and different types of sealing surface and welding structure have different maximum design pressure.Generally, the design pressure of 2.0MPa is usually hovering between 1.6 and 2.0MPa, and detailed data are shown in HG/T 20615-2009, Ministry of chemical engineering, flange standard
- Q: What are the application technologies of welding flanges?
- First, the level of welding flanges and their technical requirements shall comply with the corresponding requirements of JB4726-4728. 1, nominal pressure PN for 0.25MP-1.0MPa carbon steel, austenitic stainless steel forgings, allowing the use of grade I forgings. 2, in addition to the following provisions, the nominal pressure of PN 1.6MPa-6.3MPa forgings shall meet the requirements of secondary or secondary forgings. 3, in line with one of the following conditions, and shall comply with the requirements of forging III: (1) PN = 10.0MPa nominal pressure flange forgings; (2) the nominal pressure PN>4.0MPa chrome molybdenum steel forgings; (3) PN>1.6MPa nominal pressure and the working temperature is less than or equal to -20 degrees Celsius ferritic steel forgings.
- Q: Dn is 250, Pn25 flange, what is the hole distance?
- Flange center hole distance d1=370mmFlange diameter D=425mmGB GB/T9113.1-2000
- Q: Oil seal flange
- Flange sealing surface of the three types: planar sealing surface for the pressure is not high, medium non-toxic occasions; uneven sealing surface, suitable for higher pressure situations; the sealing surface of the tenon, suitable for flammable and explosive, toxic medium and high pressure situations. A gasket is a ring made of a material that produces plastic deformation and has a definite strength. Most from the non metal plate gasket is cut down, or by professional plant size, the material for the asbestos rubber sheet, asbestos board, polyethylene plate; also useful thin metal plate (Bai Tiepi, stainless steel) asbestos nonmetal materials such as wrapping made of metal gasket; and a belt around and asbestos tape made of thin steel and the spiral wound gasket. The ordinary rubber gasket for temperature lower than 120 DEG C; asbestos rubber gasket is suitable for steam temperature lower than 450 DEG C, the oil temperature is below 350 DEG C, the pressure is lower than the 5MPa of the occasion, for general corrosive medium, is the most commonly used acid asbestos board. In high-pressure equipment and piping, copper or aluminum, steel 10, stainless steel lens or other shapes of metal gasket. The contact width of the high pressure gasket and the sealing surface is very narrow (line contact), and the sealing surface and the gasket have higher processing finish. Flange, threaded connection (wire), flange and welding flange. Low pressure small diameter wire connecting flange, high pressure and low pressure big diameter all use welding flange, different pressure flange thickness and connection bolt diameter and quantity are different. According to the different grades of pressure, the flange pad also has different materials, from low pressure asbestos pad, high pressure asbestos pad to metal pad. 1. to classified material of carbon steel, cast steel, alloy steel, stainless steel, copper, plastic, Aluminum Alloy, argon Ge Lek, PPC etc..
- Q: If the end is threaded on both sides of the blind hole, and not in the same circumference, whether the flange, why?
- Flange connection or flange connection, is defined by the flange, gasket and bolt connection between the three sealing structure of the detachable connection as a combination of group pipe flange refers to the pipeline installation of piping flange, used in equipment refers to equipment import and export flange.
- Q: Shandong 03 fixed ventilation pipe flange production, installation, how to take charge?
- Two, work content:1, the wind pipe installation: with the reserved holes, wind pipe, elbow, three links, reducing pipe, pipe fittings, flanges and other Tianyuandifang reinforcement frame, hanging bracket mounting, derusting, painting wind pipe and steel.- according to the above description, flange manufacture and installation has been included in the amount of wind control stability.The ninth chapter of stainless steel plate and components production and installation of ventilation pipeFirst, this chapter includes stainless steel plate, wind pipe, tuyere, flange, hanging support bracket production and installation, a total of four sections, 9 items.Six, wind pipe fittings including the fabrication and installation project, but does not include the flange and the hanging bracket and the hanging bracket; flange according to this chapter separately calculated the corresponding project.- fixed number: 9-527, 9-528The tenth chapter aluminum ventilation pipes and parts installationFirst, this chapter includes aluminum circular duct, rectangular duct, round cowl, flange manufacture and installation, a total of four 20 items.Four, wind pipe production and installation projects include pipe fittings, but not including flanges and hanging support bracket; flange production and installation in accordance with the corresponding items in this chapter.
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Weld Neck Flange carbon steel ASME B16.5
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 pc
- Supply Capability:
- 5000 pc/month
OKorder Service Pledge
OKorder Financial Service
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