Industry Intelligence

Operating Cost Benefits of Oil-Free Vacuum - Part 1

Introduction Historically, mini-plants have utilized oil-sealed rotary vane vacuum pumps as a vacuum source because they provide relatively high flow rates and because they can reach relatively deep vacuum levels, such as 10-3 mbar. The same can be said of kilo labs. However, rotary vane pumps also include several critical disadvantages which make their use in ...


Dry, Chemical Resistant Vacuum for Process Development and Kilo Labs

VACUUBRAND’s dry, chemical resistant pumps provide an ideal solution for use in process development, scale-up work, and kilo labs.  With no sealing fluid to replace, our dry pumps provide a low maintenance, low operating cost alternative to oil-sealed rotary vane pumps and water ring pumps.  With 15,000 hour service these pumps can increase productivity by ...


PRODUCT-PRESENTATION

  Presentation. Pretty simple, right? It’s a liquid, seal it in containers in a range of sizes. Yes, it seems simple, but there are a few complexities. Here’s a summary of delivery presentations for Paratherm products, which include heat transfer fluids, system cleaning liquids, and an additive for stopping oxidation.     Pails The smallest quantity commercially available is the 5-gallon (19-liter) ...


Making the Most of your Air Pollution Control Chemicals

Patented Lance-Less Sorbent Injection for Significant Savings Lance-Less Sorbent Injection Dry sorbent injection is a common technology for reducing a variety of pollutants. It offers a low-capital cost method to mitigate SO2, SO3, HCl, and Hg pollutants to meet increasingly strict emissions regulations. Most systems traditionally use lances to inject sorbent into the duct. While lances also ...


Reduce maintenance costs while ensuring intrinsic safety

A Midwest chemical plant serving the automotive and OEM market needed to replace an aging carbon steel horizontal cylinder bulk storage tank with a new stainless steel vertical cylinder tank. The customer needed an overfill protection solution for the tank that allowed for functionality testing without removing the instrument from the tank. Download the application note ...


Safe, cost-effective level measurement

Endress+Hauser non-contact radar measures level in corrosive chemical tanks A U.S. water treatment plant operating at 85 MGD capacity was in need of accurate and reliable level measurement for chemical tanks with product density variations due to temperature changes, without the high costs associated with chemical compatibility issues. Ultrasonic level devices are common in these applications. ...


Vacuum Measurement – Pirani Gauges

Pirani gauges are a group of indirect measuring pressure gauges which measure the thermal conductivity of the gas sample.  Pirani gauges are typically used in the fine vacuum range (1 torr – 10-3 torr), as this is the range where they achieve the best accuracy.  Specially-designed Pirani gauges have the capability to provide accurate pressure ...


Vacuum Measurement - Capacitive Gauges

In one of our prior posts, we talked about the key differences between direct and indirect vacuum gauges.  One of the most common direct gauge technologies is the capacitive gauge.  This post will review how these gauges are constructed, and how they work. At their core, capacitive gauges consist of a thin diaphragm and two capacitive ...


Significance of Flash Fire Points

FLASH AND FIRE POINTS IN HEAT TRANSFER FLUIDS Download as a PDF file FLASH POINT DEFINED A “flashpoint” is the temperature at which a fluid generates enough vapor to be ignited (“flash”). There are two common test methods: Open Cup (ASTM D92) and Closed Cup (ASTM D93). Both methods involve heating the sample in a small cup and inserting an ignitor into the vapor. The ...


Vacuum Measurement Made Easy

Accurately measuring vacuum levels in chemical processes can be problematic.  For one thing, ...


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