Air Products Gasguard 250, Руководство по установке

Страница: 20 / 68

Section 3: Tubing Connections
Revision C: May 1997 Page 3 - 1
Section 3: Tubing Connections
All tubing should be designed and installed following the local piping codes and
the following:
•
ASME B31.3 "Chemical Plant and Petroleum Refinery Piping"
•
SEMC-005 "UHP Tubing and Fitting Specification"
(found in the Appendix)
Tubing must be sized to flow the maximum amount of gas required by the process
system. All tubing is constructed of 316L stainless steel.
All tubing connections are made at the top rear of the enclosure. All tube stubs are
labeled with their function. Process and purge lines are double bagged and taped
for shipment. Vent and venturi supply lines are single bagged. The tube end has
been faced and is ready for welding to facility piping. Welding should be
performed using established high purity welding techniques.
3.1 Tubing Interconnections
Process outlet: 1/4" diameter, 0.035" wall thickness
(coaxial tubing option) (coax - 1/2" diameter, 0.035" wall)
Venturi inlet: 1/4" diameter, 0.035" wall thickness
Purge inlet: 1/4" diameter, 0.035" wall thickness
Vent outlet: 3/8" diameter, 0.035" wall thickness