Archives :: Processing & Handling :: Liquid, Gas and Air Handling :: Piping & tubing

Displaying 1 - 20 of 135 stories.
June 1, 2014
This company has simplified transitions to its modular pipework system by introducing adapter flanges, which are available in square or round form. The new adapters are welded onto the machine outlet or inlet ports. Matching counter flanges from the company’s modular...
May 1, 2014
Leaks in a chemical process industries (CPI) facility can run the gamut from creating a costly waste to prefacing a catastrophic failure.. They can be an annoyance, by creating pools of liquid on concrete that can become a possible slipping hazard and housekeeping problem, or a leak that can emit toxic vapors, causing various degrees of harm to personnel. In some cases a leak may be a simple housekeeping...
March 1, 2014
APSPG tubing is specially formulated to withstand the repeated compression and release actions of peristaltic pumps and offers consistent performance in pharmaceutical, biopharmaceutical and laboratory uses. Made of...
February 1, 2014
Compressible gas flow with significant variation in density along pipes is commonplace in the chemical processing industries (CPI). In designing these pipes for compressible flow, it is important to calculate the pressure loss or maximum gas-handling capacity for safety and economic reasons. Due to the complexity of the equations for compressible flow, which often require time-consuming iterations, current...
February 1, 2014
Would you like to make a quick mental calculation to determine approximate flowrate, velocity, or pipe and duct sizes for many common situations? This article presents two methods for estimating flow characteristics without the aid of charts, tables, calculators or software programs. One method applies to liquid flow in pipes, and the other to air flow in ducts. The techniques are intended to be simple...
November 1, 2013
Working in close proximity to the high pressures and temperatures commonly found in the chemical process industries (CPI) is cause enough for concern over a person’s wellbeing; but working in close proximity to chemicals that are considered toxic, hazardous or reactive escalates that concern to a higher degree (Figures 1 and 2). The dangers of such chemicals underline the paramount importance of...
October 1, 2013
The Kleerband Flange Protectors provide a quick and easy way to apply protection and prevent corrosion. The devices are simple to install with a worm-gear connection...
July 1, 2013
The new ASM 340 (photo) is a high-performance and durable leak detector for a wide range of applications, from R&D through the industrial coatings market, and can be used for both serial production and maintenance tasks. Both...
July 1, 2013
Polymer-based piping systems offer a number of advantages, along with some limitations, compared to metallic and other non-polymeric pipe materials. The use of thermoplastic piping in the chemical process industries (CPI) must be carefully considered on a case-by-case basis because of the constraints introduced by various CPI applications. Polymers remain only a small (~10%) part of the global CPI piping...
July 1, 2013
The new Food Grade range of pipework systems is said to be the first product range on the market that meets the stringent requirements of the European standard EC 1935/2004, as well as the U.S. Food and Drug Admin. (FDA) food...
March 1, 2013
Coolant circuits must dissipate heat from applications such as welding or power-electronics installations. This requires high flowrates within a compact space. This company...
February 1, 2013
Tygon S3 (safe, smart and sustainable) is said to be the first bio-based and phthalate-free tubing, and is the next generation of flexible tubing from this company for food and beverage...
December 1, 2012
A new tubing solution for use in chemical dispensing applications is now available in Europe. The Tygon 2375 Ultra Chemical Resistant Tubing replaces the widely used Tygon 2075 line, providing an improved pressure rating...
October 1, 2012
The QVF Supra-Line is compatible with two proven flange systems — the QVF/WPR2002 and the Schott/KF systems — and thus reduces the number of technically equivalent components required while providing the user with...
September 1, 2012
Two new diameters extend the diversity of this company’s modular-pipework system for handling bulk goods, dust extraction and exhaust air. Introducing these two new...
August 1, 2012
A tube welder for sterile biopharmaceutical applications Sartorius Stedim Biotech The Biowelder Total Containment (TC) system features innovative technology that permits sterile connection of liquid-liquid thermoplastic tubing that has an outer diameter of up to 1 in. and that is used on disposable bag assemblies in all biopharmaceutical manufacturing processes. The sterile welding process is fully...
August 1, 2012
With the MiniTest 300, this company introduces the first vacuum leak detector that uses a quartz window sensor instead of the conventional mass-spectrometer detector. The MiniTest 300 operates at a working pressure of up to 200...
August 1, 2012
The MiniTest 300 is a vacuum leak detector that uses a quartz-window sensor, rather than a mass spectrometer. Weighing only 11 lb, the unit is suited to mobile leak detection at onsite service calls. The MiniTest 300 operates at a working pressure of...
May 1, 2012
Failures of piping due to vibration-induced fatigue are a serious problem in the chemical process industries (CPI) and a matter of concern for the safety and reliability of plant operations. Due to the complexity of flow-induced vibrations in pipes, no closed-form design solutions — those that can be expressed in terms of well-known functions — are available. In this article, we present a...
May 1, 2012
Peristaltic pumps work by compressing a tube against a circular pump housing with rollers on a rotating arm. The fluid that is ahead of the roller gets pushed forward, while new fluid is drawn into the tube by the vacuum generated as the tube returns to its relaxed state. Peristaltic pumps are a type of positive displacement pump that can be used in industrial chemical dosing applications and others...
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