STANDARD PRACTICE FOR PREFABRICATION AND FIELD FABRICATION OF THERMAL INSULATING FITTING COVERS FOR NPS PIPING, VESSEL LAGGING, AND DISHED HEAD SEGMENTS (R 1988) (E1-1988)
|Publication Date:||27 August 1976|
|ICS Code (Heat recovery. Thermal insulation):||27.220|
This recommended practice provides tables of dimensions of preformed insulation that may be used in fabricating covers for use on valves, ells, tees, flanges, and vessels in the pressure range from 150 to 1500 psi (1 to 10 MPa). These tables, which are part of this standard, are published separately as the ASTM Recommended Dimensional Standards for Prefabrication and Field Fabrication of Thermal Insulation Fitting Covers for NPS Piping, Vessel Lagging, and Dished Head Segments. The tables provide dimensions for use in forming pipe fitting covers for NPS pipe operating at high temperature and low temperature and NPS pipe heat traced with tubing up to 5/8 in. (16 mm) in outside diameter. The tables also include dimensions for use in forming thermal insulation into curved segments, lagging, and dished heads for application on vessels. This recommended practice does not apply to reflective-type insulation.