Cylindrical Vacuum Chamber Wall Thickness

Chamber diameter wall thickness under 17 inches.

Cylindrical vacuum chamber wall thickness.

Pressure vessels calculates the wall thickness of plain spheres of same material and equal wall thickness throughout. Radial stresses are ignored which is considered reasonable given that the maximum. Vacuum chamber design guide chamber wall thickness recommended minimum wall thicknesses are listed in the table below. The material for both systems is black iron sheet.

The pressure and the temperature i want to work at are in the range of 0 1 0 07 mbar and 200 350 degree of centigrade. The d shape chamber when viewed from above combines the thin wall of the cylindrical chamber with the volume and large o ring sealed access door of the box chamber making it appropriate for high vacuum applications. The door is frequently aluminum to reduce weight. Chamber feet on the outside ensure stability eye bolts or hoisting shackles allow safe transport.

Chamber diameter of 600 mm requires a flat bottom about three times the wall thickness as of a dished end. Thicker walled material should be specified for chambers with ports having angular tolerances of less than 1 2º or for processes that require large mass for vibration dampening. This paper gives the methodology methods and hints for designing vacuum chambers. Asme viii only considers membrane stresses circumferential in a spherical vessel i e.