The PolyStar series of electrical and industrial polycarbonate enclosures (photo) now features new foam-in-place gaskets. These gaskets provide full, secure contact to the mating cover surface with a continuous overlapping seal that ensures no air gaps, no glue joints and…
The success of coating and bonding, as well as other surface processes, depends on wettability. The relevant parameters are contact angle and surface free energy (SFE), which are measured with drops of one or more liquids that are dispensed onto…
Enhancing data management using LIMS software provides enhanced product-development opportunities Accurate and efficient data management is key to productive and collaborative working practices, yet recording, storing and analyzing large quantities of laboratory data can be challenging. With many laboratories using…
Allyl chloride (3-chloropropene; Figure 1) is primarily used almost exclusively as a chemical intermediate in the production of epichlorohydrin. A three-carbon epoxide, epichlorohydrin is used in the manufacture of epoxy resins prevalent in coatings, adhesives, and plastics. Epichlorohydrin is also…
Process hazards analyses (PHAs) are structured reviews during the engineering design process intended to detect potential hazards that were not addressed by the design team. This one-page reference describes commonly employed PHA methods. PHA methods PHAs are often conducted or…
The ePG (photo) is a new electrical pressure pump for industrial pressure-calibration applications. The ePG is a robust, portable, battery-operated pressure pump that enables easy and quick pressure generation from near vacuum up to 20 bars (300 psi). With a…
The SK TU4-PNS, known as the PROFIsafe module, provides comprehensive safety for the reliable operation of this company’s drive systems (photo). This PROFIsafe module is a drive-integrated solution for decentralized variable-frequency drives (VFDs) that implements functional safety within the system…
Presented here are some practical points to help in the selection of a shell-and-tube heat-exchanger design for various applications Heat exchangers are widely used in various sectors of the chemical process industries (CPI), including: chemical; oil and gas; power generation;…
In order to maximize longevity and minimize process downtime, it is imperative to understand the factors that determine the proper selection of expansion joints. The following guidelines can help with selection decisions for expansion joints Although sometimes overlooked or treated…
Light hydrocarbons in storage tanks can vaporize and vent to the atmosphere, creating harmful emissions. An optimized vapor-recovery unit can effectively and economically reduce such emissions In the chemicals, petroleum refining and natural gas industries, storage vessels are used to…