The Drum MANWAY offers Heat Recovery Steam Generators (HRSGs) the advantages of lower gasket seating load, the ability to be used in a wide range of surface finishes and operating pressures, and a gasket which is designed to stay in place during closing. Eliminate problems with leakage, gasket surface damage, gasket blow out, damage to other equipment and/or personnel. The most important feature of the gasket is the high unit load generated by the narrow sealing area provides a considerably higher flange clamping pressure and a better seal at a lower clamping force. The standard gasket material is 304 SS, with two (2) tracks of Flexible Graphite sealing elements. Specialty gasket material and/or sealing elements are available as options.
Ability to cope against severe thermal cycling and vibration.
Inherent Live Loading capability.
Fire, Blow Out, & Leak proof.
Superior pressure handling.
Ease of installation.
Lower seating load.
Cannot be over compressed.
No need to re-torque.
Eliminates fugitive emissions.
ANSI, DIN and JIS sizes available.
Sizes: 12 x 16, 14 x 18, 16 x 18, 18 x 24, 20 x 24, 22 x 26
Thickness: 1/16" (1.6mm)
Torque Values: 50% to 65% of Bolt Yield Flange
Surface Finish: 10 to 400 µin RMS (microinches)
Sealing elements width: 0.125" each side.
Minimal sealing element web width: 0.375"
"M" and "Y" values: m = 2.85, Y = 2900 psi
Leak Rate: 0.005 in mg/m ∙ s (DIN 28090 / 1..2) < 10ppm @ He
Temperature Range: -200°C cryogenic air +500°C in regular atmosphere +650°C in steam +1000°C reducing or inert media
Pressure Range: Full vacuum to +5000 psi
Minimum Seating Stress: 2900 psi (20 MPa)
Maximum Seating Stress: 23,200 psi (160 MPa) (testing equipment limit)
Recommended Seating Stress: 5800 to 8700 psi (40 to 60 MPa)
Standards Available: ANSI 16.5, DIN 2600 & JIS B2220.
METAL CARRIER OPTIONS
AL6XN® (Stainless Steel)
304 Stainless Steel
316 Stainless Steel
321 Stainless Steel
347 Stainless Steel
SEALING ELEMENT OPTIONS