Hi Lo Welding Gauge: The Hi-Lo Welding Gauge is a versatile tool used in welding and pipefitting скачать в хорошем качестве

Hi Lo Welding Gauge: The Hi-Lo Welding Gauge is a versatile tool used in welding and pipefitting

This video is to demonstrate the Use Of Hi-Low gauge. By Using Hi-low Gauge following can be verified •Internal Misalignment • Wall Thickness • Fillet Weld Leg Length •Weld Cap Height / Weld Reinforcement Additionally There are two go no-go features of this gauge which are used to verify that • the beveled angle is 37-1/2 degrees or not • The required gap after fit- up is no larger than 3/32 inch three thirty-seconds of an inch (2.4mm) or can be used to Measure Required gape is no larger then 1/16-inch - one-sixteenth of an inch (1.58mm) gap after fit-up. • There are three scales on this gauge. The Material Thickness Scale measures • The Internal Alignment Scale measures. • the Scales for the Scribe Lines measurements. How to Measure Internal Misalignment • Gauge should be in Zero Position. • Turn the gauge 90 degrees and lower the Alignment Stops into the Root gap. • Turn the gauge back to original position. Stop when the tip of the bevel touches the gap. • Loosen the locking screw and lower the extension until the top edge touches the surface of the Base Metal. • Pull one leg up until the Alignment Stop touches the interior of the parent metal. • Pull the other leg up until the Alignment Stop touches the interior of the parent metal. • Both Alignment Stops should be in contact with the interior of Parent Metal. • Read the measurement from the scale. Measuring Material Thickness with a Hi-Lo Gauge By using Hi- Lo Gauge Material Thickness can also be measured. One important consideration: When measuring thickness, focus on the side of the joint where the sliding body or guide is located. This process operates on a principle similar to that of a Vernier Caliper. The size will vary based on the jaws’ opening. Pull the leg of the gauge: Do this on the same side of the Parent Metal (Weld Joint) whose thickness you need to measure. Continue until the alignment stop touches the interior of the base metal. Tighten then Screw, in order to Fix the Position of Scale. Finally, record the reading from the material thickness scale." How to Measure Crown Height/ Weld Cap Height / Weld Reinforcement of a Butt Weld. Gauge should be in Zero Position. Loosen the locking screw and raise the leg that is on the same side of the weld. Position the gauge on the horizontal member so that one foot is on the horizontal member and the other is raised above the weld. Lower the raised foot by pushing down gently on the raised Alignment Stop until the bottom of the foot touches the top of the weld. Tighten the Screw, in order to Fix the Position of Scale. Finally, record the reading from the scale. How to Measure Leg of a Fillet Weld Same Steps to be followed as Descried to measure Weld Cap Height. Gauge should be in Zero Position. Loosen the locking screw and raise the leg that is on the same side of the weld. Position the gauge on the horizontal member so that one foot is on the horizontal member and the other is raised above the weld. Lower the raised foot by pushing down gently on the raised Alignment Stop until the bottom of the foot touches the toe of the weld. Tighten the Screw, in order to Fix the Position of Scale. Read the measurement from the scale How to Check for 37-1/2 Degree Bevel To ensure accurate measurement, it is essential that the gauge is in the zero position before proceeding. Begin by turning the gauge perpendicular and carefully lower the Alignment Stops into the root gap until the top edge of the Beveled Angle makes contact. Return the gauge to its original position. Then, turn the locking screw and gradually lower the Sliding Body until the top edge of the extension touches the surface of the base Metal. Lastly, square the shoulders of the beveled angle by adjusting the legs of the gauge accordingly. How to Measure the Fit-Up Gap Go no-go features of the gauge which are used to verify Root Gap As Exhibited in Picture, The Stoper of Gauge are pass through the gap to check that the required gap after fit- up is no larger than 1/16-inch (1.58mm) or no larger than 3/32 inch (2.4mm). The Hi-Lo Welding Gauge is a versatile tool used in welding and pipefitting. Let me explain its purpose and how it works: Internal Misalignment Measurement: Loosen the locking screw and insert the gauge tip into the fit-up gap. Rotate the gauge 90 degrees and slide it until it contacts the outside diameter of the pipe to verify that it’s square. Pull down the gauge until the internal alignment stops snugly against the inside of the pipes. Read the misalignment measurement on the scale. This helps assess any misalignment after fit-up. Material Thickness Verification: Use the material thickness indicator and the corresponding scale to measure pipe wall thickness after fit-up. Bevel Angle Verification: Set the alignment scales to zero. Place the gauge body squarely against the pipe wall and push it into the fit-up gap.