What is fit up welding?

1: Fit-up inspections cover the material types and thicknesses, joint design including root opening, and the symbols on the joint members for the welders. If the root opening is greater than 3/16", then the weld size must increase proportionally (fillets), up to 5/16" root opening.

Similarly, what is repair welding?

Repair Welding. Repair welding is a commonly used technique in which the cracked material is removed by arc gouging and the element is welded to re-join the material on either side of the crack.

Also Know, how do you fit a slip on flange? How to Use Slip-On Flanges on a Steam Pipe

Slip the flange over the end of the pipe base.
Thread the flange pins to tighten the flange's grasp on the pipe.
Try to pull the pipe out of the flange to make sure that the pins are efficiently tightened.
Use a hammer to slightly tap the flange in place.

Herein, how do you square a flange pipe?

By cocking the flange(letting the flange hang on the pipe, then pushing the bottom of the flange towards the pipe), your ready for your first tack. You'll probably need both a level and squares. A square off the side of the pipe and a straight edge across the face of the flange works well for me.

Can you XRAY socket welds?

The answer to your question is "NO" because radiographic test can be used on socket welds. Radiography stated as one of examination method for Fillet [Note (4)].

33 Related Question Answers Found

Can two fittings be welded together?

"Fitting to fitting welding is not permissible; a pipe shall be (placed) between fittings." Any butt-weld fitting or weld-neck flange can be directly welded to any other butt-weld fitting or weld neck flange without the need for any extra piece of pipe (Pup piece) between them.

Can you weld a socket?

Yeah, impact sockets are generally a soft steel(so it doesn't break under the impacts). You won't know if you can weld it until you try.

Is a socket weld a fillet weld?

Socket weld (the fillet weld) resists around 1/2 the strength of butt welding. So it is mainly used for small pipeline (Small Bore Piping) with diameters NPS 2 or smaller. So it is used when a welded joint with strength not lower than that of the base metal itself is needed.

What is slip on flange?

Slip on Flange is essentially a ring that is placed over the pipe end, with the flange face extending from the end of the pipe by enough distance to apply a weld bead on the inside diameter. The OD of slip on flange is also welded on the back side of the flange.

Why is Weldolet used?

Weldolets are used to create a 90-degrees (reinforced) pipe branch. The shape of the Weldolet ensures little stress concentration on the branched pipe, providing an integral reinforcement. On the branch pipe side, Weldolets may have the same schedule of the run pipe or a higher schedule.

What is a half coupling used for?

Half Coupling is used for small bore branching from a vessel or large bore pipe. It can be threaded or socket type. It has a socket or thread end on only one side. A socket weld half coupling can be directly welded to large bore pipe, to make a branch connection.

What is spigot and socket joint?

A spigot joint is a type of pipe fitting connection that is inserted into another pipe fitting. The spigot end typically has the same outer diameter as the pipe and is usually fitted into another joint called a bell or socket. Together, these two elements form what is commonly known as a bell and spigot joint.

What does it mean to two hole a flange?

RE: two holing a flange

To two hole a flange means to have the two top holes of a flange straddle the vertical centerline of the flange. This is easily accomplished using two pins that fit the bolt hole and make the pins level while still straddling the vertical center line.

How do you fit flange?

When the tunnel of the flange is placed on your breast, it should only have a few millimeters (3-5) of wiggle room around the nipple. The entire nipple should fit comfortably without much, if any, of the areola entering the tunnel.

How does a flange work?

A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or screwed. Flanged joints are made by bolting together two flanges with a gasket between them to provide a seal.

What is pipe flange?

A pipe flange is a disc, collar or ring that attaches to pipe with the purpose of providing increased support for strength, blocking off a pipeline or implementing the attachment of more items. They are usually welded or screwed to the pipe end and are connected with bolts.

How do you make a pipe flange?

Simply start a sketch on a face of the pipe flange and sketch a construction circle with the bolt circle diameter. Then attach a circle to your construction circle and create a circular pattern. The last step is to cut the holes in the pipe flange using extrude-remove.

What is fit up inspection?

Response: We have fit-up inspections at every joint and it entails making sure the joint is fit in accordance with our WPS and also that the materials haven't been damaged during fit-up.

How many types of flange are there?

The 13 Types of Flanges for Piping Explained. Which are the most common types of flanges used in piping? How do they look like? The key types of flanges are the welding neck, long welding neck, slip-on, socket weld, lap joint, threaded and blind flanges.

What are the types of flange?

The basic types of flanges are:

• Slip-on.
• Blind.
• Lap-Joint.
• Socket Weld.
• Threaded.
• Weld-Neck.
• Orifice.

How do I choose a gasket for my flange?

All of these factors must be taken into consideration when selecting a gasket:

The Flange Load.
Pressure in the Piping System.
Temperature in the Piping System.
Fluid Type.
Gasket Outer Diameter.
Gasket Thickness.
Gasket Width.
Gasket Surface Finish.

What is difference between ASME and ANSI?

ANSI is focused on strengthening the US's market position, while ASME is focused on developing solutions to mechanical engineering problems and safety issues. ASME was founded decades before ANSI came into existence.