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Bolt Tightening Flange Torque Sequence Chart

Bolt Tightening Flange Torque Sequence Chart - For those who need to download an image (the top graphic is svg) we include a high resolution image of the 40 bolt torque sequence below. To bring the joint together, fasteners should be tightened in opposite pairs. Web tighten the bolts in a star pattern, tightening each bolt a little at a time to ensure that the load is evenly distributed. Web welcome to this interactive flange bolting calculator from hytorc.the program computes recommended torque values , bolting patterns, tool selection and pump pressure settings for standard asme b16.5 and api 6a flanges under normal assembly conditions. Use a calibrated torque wrench or tensioning device to achieve the correct level of bolt tension. Tighten to 100% of target torque usind cross pattern. Web a complete torque tightening sequence with charts for class 150 to 2500 flanges. Tighten to 20% to 30% of target torque usind cross pattern. Web flange torque charts listed by nps and by flange class. Nominal quantity bolt nominal quantity bolt nominal quantity bolt pipe size of bolts diameter min max pipe size of bolts diameter min max pipe.

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Web By Bringing The Flanges Together Slowly And Parallel When Installing A Gasket And Taking A Minimum Of Four Bolt Tightening Passes, Following The Correct Bolt Tightening Sequence, There Is A Payoff In Reduced Maintenance Costs And Increased Safety.

Use a calibrated torque wrench or tensioning device to achieve the correct level of bolt tension. Tighten to 100% of target torque usind cross pattern. Just enter the flange size, type, and class, and the tool instantly shows the asme values for: Nominal quantity bolt nominal quantity bolt nominal quantity bolt pipe size of bolts diameter min max pipe size of bolts diameter min max pipe.

Check Flange Gap Around Circumference For Uniformity.

For a307 grade a, 75% of 36,000 psi is utilized. Tighten to 20% to 30% of target torque usind cross pattern. As the flange size increases, internal operating pressure plays an increasingly. Lookup flange bolt torque patterns on your phone in seconds.

Web Typical Pipe Flange Bolt Torque Chart For Spiral Wound Gaskets With Inner And Outer Rings

There are two aspects to consider: Equipment flanges have an internal pressure that is highly application dependant, which prevents the generation of a generic torque table. 1, 33, 25, 17, 9, 5, 13, 21, 29, 3, 35, 27, 19, 11, 7, 15, 23, 31, 2, 34, 26, 18, 10, 6, 14, 22, 30, 4, 36, 28, 20, 12, 8, 16, 24, 32. Web torque pattern for 36 bolt flanges.

Then Install And Finger Tighten All Fasteners.

Web a complete torque tightening sequence with charts for class 150 to 2500 flanges. Web the torque values are approved for spiral wound graphite and ptfe filled gaskets, graphite sheet gaskets ghe and ghr types, ring joint, double jacketed and camprofile gaskets. To bring the joint together, fasteners should be tightened in opposite pairs. Web in fact, there is no “silver bullet” bolt tightening sequence ideal for torquing every type of flange or gasket.

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