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FAQ

Frequently Asked Question

ASME B16.5 10" 600# RF slip on flange question. One of our customers pulled a blind on a Sec VIII Div 1 vessel we provide them the other day and the Flexatalic gasket had a blow out pushing in toward the center of the vessel in one particular spot.

ASME B16.5 10" 600# RF slip on flange reply example.
This is example text. This is example text. This is example text. This is example text.

ASME B16.5 10" 600# RF slip on flange reply example.
This is example text. This is example text. This is example text. This is example text.

ASME B16.5 10" 600# RF slip on flange reply example.
This is example text. This is example text. This is example text. This is example text. ASME B16.5 10" 600# RF slip on flange reply example.
This is example text. This is example text. This is example text. This is example text.

ASME B16.5 10" 600# RF slip on flange reply example.
This is example text. This is example text. This is example text. This is example text.

ASME B16.5 10" 600# RF slip on flange reply example.
This is example text. This is example text. This is example text. This is example text.

ASME B16.5 10" 600# RF slip on flange reply example.
This is example text. This is example text. This is example text. This is example text.

ASME B16.5 10" 600# RF slip on flange reply example.
This is example text. This is example text. This is example text. This is example text.

1/8" of an inch all the way around and a bit more where there is the concentricity issues. The raised face at one end of the flange is 1.0625" wide and it narrows down to .875" wide at the opposite end. Where it is .875" wide is where the gasket blew out toward the center.

MILIM TECH
Wellding Neck Flange

The I.D. of a 600# RF slip on flange is 10.88" That should put the width of the raised face at roughly .93''. Is there a tolerance on this dimension because obviously we're big on one end and small on the other. Also, does anyone know of any concentricity requirements for the raised face of a flange?

MILIM TECH
Tube Sheet

One of our customers pulled a blind on a Sec VIII Div 1 vessel we provide them the other day and the Flexatalic gasket had a blow out pushing in toward the center of the vessel in one particular spot. They got to looking at the raised face of the flange and saw that the I.D. portion of the raised face was not concentric. They then saw that when a new gasket is placed on the raised face that the flexatalic gasket overhangs the I.D. of the raised face by roughly an 1/8" of an inch all the way around and a bit more where there is the concentricity issues.

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