Design operating pressures Guide

Factor of safety, flow, 56 Design operating pressures, 33, 34 Guide, 36... 

Figure 1-33. Guide Operating pressure vs. design pressure increase over operating pressure.

E. Relief pressure this penalty accounts for the effect of pressure on the rate of leakage, should a leak occur. Equipment design and operation becomes more critical as the operating pressure is increased. The factor to apply depends on the relief device setting and the physical nature of the process material. It is determined from Figure 2 in the Dow Guide. 

HAZOP analysis utilizes use key guidewords and system diagrams (design representations) to identify system hazards. Adjectives (guide words) such as more, no, and less, are combined with process/system conditions such a speed, flow, and pressure, in the hazard identification process. HAZOP analysis looks for hazards resulting from identified potential deviations in design operational intent. A HAZOP analysis is performed by a team of multidisciplinary experts in a brainstorming session under the leadership of a HAZOP team leader. 

Table 12-1 outlines the compression limits for this type of equipment. The value of the chart and table is to aid in establishing the probable types of equipment suitable for an operation. However, as in many other process situations, equipment is designed to handle special cases that might not be indicated by the guide. Usually inlet cfm, temperature, and pressure, as well as the outlet conditions and... 

---