on Wed, 06/06/2018
In this white paper, Valin's motion control & automation senior application engineer, Tom Trinh, will explain the different applications utilizing machine controllers and their requirements.
on Mon, 04/16/2018
Skydrol is a fire-resistant aviation hydraulic fluid that curbs corrosion and prevents erosion to various components. Converting components to be suitable for use with Skydrol is a process that needs to occur in order to protect the integrity and safety of the entire system.
on Tue, 04/10/2018
In recent years, the trend in industrial automation is for all equipment, computers, and controllers to be able to communicate with each other to increase productivity, efficiency, and manufacturing quality. In this white paper, we will show different ways of how these industrial devices communicate with each other as well as offering a better solution.
on Mon, 04/02/2018
Heat Trace and Electric Process Heaters are used in many critical processes in all plants. It is extremely important that you and your team know how to properly test, install and maintain your electric heaters. Lack of attention in regard to these fundamentals will lead to costly heater shutdown and will cause an interruption in your process.
on Mon, 03/26/2018
Occasionally questions come up with regard to calibration of Watlow controllers. This paper will attempt to address some of the more common questions on this subject. Many people want to jump in right away and begin performing a calibration procedure before verification. Before you would attempt to calibrate a Watlow controller, verify that the controller is in need of calibration. If you verify that readings of the controller first, you may not have to go through the more involved process of changing the calibration settings.
on Mon, 03/26/2018
Customers who wish to control three phase heaters require power controllers. How do you decide which method of control to select? ‘Two-leg versus three-leg control’ and ‘zero cross versus phase-angle control need to be considered.’ The following will help you decide when each method is appropriate.
on Mon, 03/26/2018
In Watlow catalogs, brochures and web pages there is a category of controllers listed as “Limits and Alarms”. It is not always clear to everyone when to use these controllers or which type of controller to use. This document is an attempt to clear up some of these issues.
on Mon, 03/26/2018
In today’s world, there is an ever increasing awareness and focus on safety. A system designer needs to understand all aspects of design that can affect the safety and reliability of the system they are implementing.
on Mon, 03/26/2018
The use of INPUT/OUTPUT software filters can provide enhanced performance of controllers to process systems conditions. The use of Input filters are to reduce the erratic fluctuations of the analog input signal due to either electrical “noise” conditions or rapid fluctuations of the analog input signal. It accomplishes this by slowing down the response of the analog input to a change.
on Thu, 03/01/2018
Presses are hard-working machines, and many have been in service for years— some since the early 1950s. As a press ages, problems can occur, and even the most robust of presses will eventually require retrofitting or replacement. The initial symptoms may simply be increased or more frequent downtime while components are replaced.
on Wed, 02/28/2018
Applications for power units span the spectrum of fractional horsepower requirements to those incorporating drives using 100’s of horsepower. From left: Standard, pre-engineered power unit CytroPac; configurable GoPak power unit; typical custom power unit for industrial use; large, complex custom power unit. New capabilities and power unit designs provide many new options to machine and hydraulic system designers.
on Wed, 02/28/2018
Anyone gaining only a superfluous familiarity with fluid technology will easily underestimate the performance and intelligence of modern hydraulics. Who would think that this technology is highly precise, energy-efficient and ready today for Industry 4.0 applications?
on Wed, 02/14/2018
Graham Johnson, EMEA Product Manager for Parker Veriflo Ultra High Purity Fluoropolymer Valves, looks at the benefits of two point seal valves for semiconductor applications. The corrosive nature of high concentration acids and bases, clear chemistries and slurries used in semiconductor applications mean that pneumatic valves specified for these applications need to be particularly robust.
on Mon, 01/29/2018
Rotork IQ technology is well established in the field of intelligent valve actuation. In addition to Rotork’s double-sealed enclosure, ‘non-intrusive’ commissioning, data-logging and predictive maintenance capabilities, the latest IQ3 generation features an extended range of advanced functionality and communication capabilities.
on Wed, 01/24/2018
Rugged actuators that can handle a full range of ambient conditions are required in some of the more complex environments that produce oil. To provide comprehensive solutions to this precise actuation challenge, Valin has partnered with Valvcon.
on Fri, 01/05/2018
In Jon Monsen's book, Control Valve Application Technology (published and distributed by Valin Corporation), Jon explains how to properly size and select a control valve. Jon recently received inquiries from customers interested in a further explanation of one of the graphs featured in his book. This article will cover that explanation.
on Fri, 07/21/2017
In this paper I will show how an analysis using Metso’s Nelprof® control valve sizing and selection software’s unique ability to graph the installed gain of a control valve can be helpful in selecting the optimum pump for a balance of good controllability and minimum energy use.
on Fri, 02/24/2017
Molybdenum disulfide is a naturally occurring blackcolored solid compound that feels slippery to the touch. It readily transfers and adheres to other solid surfaces with which it comes into contact.
on Thu, 02/23/2017
Here are some essential steps to help ensure your instrumentation tube and fittings system is as safe as possible.
on Thu, 02/23/2017
This article discusses the evolution of ferrule design and hardening technology, using the example of the Parker Hannifin CPI™ single ferrule compression fitting, but the basic principles also apply to two ferrule compression fittings, such as Parker Hannifin’s A-LOK®, as well as the high pressure design.
on Thu, 02/23/2017
Probably the most significant trend in the instrumentation products world today is the design of increasingly corrosion-resistant systems. Led by oil and gas companies, instrumentation and piping engineers are now focusing far more attention on the materials used to fabricate valves, manifolds and tubing systems. In the offshore project world, for example, Parker Hannifin is currently seeing exponential growth in the use of 6Mo in preference to traditional 316 stainless steel. So, why are so many choosing that particular material?
on Fri, 12/16/2016
Clean drinking water is the most precious resource on the planet. Access to sanitary water is an essential element to a healthy, productive population. While many consumers take it for granted that they have access to clean water coming from the faucets in their home and in public places, the companies responsible for making sure this is a reality understand everything that is involved.
on Wed, 11/30/2016
Grocery stores require produce to be disinfected before being shipped to their outlet on a regular basis in order to ensure cleanliness before it is sold to their customers. If left untreated, fresh fruit can be subject to a number of different contaminates that can ultimately adversely affect the consumer’s health. As the public is more conscious than ever about the substances and chemicals that they ingest, ensuring that produce does not harbor microbes is critical.
on Mon, 11/14/2016
An industrial control network is a system of interconnected equipment used to monitor and control physical equipment in industrial environments. These networks differ quite significantly from traditional enterprise networks due to the specific requirements of their operation.
on Wed, 10/12/2016
Digital pathology is a rapidly growing segment of invitro-diagnostics with the potential to streamline the overall pathology process for the benefit of both doctors and patients. This relatively new market segment requires motion systems that support both high quality and high speed imaging. In addition, the scanners are dispersed globally, which drives the demand for extremely high reliability. Lastly, as with all diagnostic instruments, laboratory space is at a premium, so minimizing the overall footprint is critical.
on Tue, 10/11/2016
Almost everyone knows someone whose life has been touched by heart disease or cancer—the two leading causes of death in the United States. Today, researchers are using DNA sequencing to better understand the genetic links we have with diseases and how it can influence the course of treatment. We are standing on the edge of the personalized medicine healthcare revolution, which will be fueled by the widespread adoption of DNA sequencing as a diagnostic tool.
on Mon, 10/10/2016
Cellular therapies are on the verge of revolutionizing how patients are treated for some of the most chronic illnesses. Cell therapies offer regenerative abilities that are giving hope to both patients and their doctors. However, there is still much work to do in the laboratory. In the article, “Cell Based Therapeutics: The Next Pillar of Medicine,” authors Fischbach, Bluestone, and Lin assert that Cell Therapies will become the Third Pillar of the drug industry alongside molecular and biochemistry.
on Thu, 08/04/2016
With the advent of industry buzzwords like “Collaborative Robotics” and “Industry 4.0,” machine builders of today are feeling increased pressure to provide a new level of intelligent and flexible automation. A revolution taking place in the industrial marketplace is the Industrial Internet of Things, which describes an industrial network of devices embedded with electronics, software, and sensors, capable of collecting and exchanging data to more effectively and efficiently drive machine behavior. Trends like this are pushing an evolving industry to the forefront of technological advancement.
on Fri, 07/08/2016
Conserving electricity and water are as important as ever for companies in order to reduce operating costs. One area where the experts at Valin can help with this goal is through the use of a conductivity controller for the water treatment program of a cooling tower.
on Thu, 02/18/2016
Selecting the correct chemical metering pump can be a daunting task because of the variations and types of chemical pumps available. In order to pick the best metering pump for the application you will need to consider several factors. For the sake of simplicity, we will limit our discussion to pumps that deliver no more than 50 gph and pressures of less than 250 psi.
on Wed, 08/26/2015
There are very few elegant solutions for mid-to-large scale heavy industrial applications that require compact, high-temperature heating sources capable of delivering precise heat energy to a targeted location.
For US industries, the startling reality is that baby boomers are retiring at a rate of 10,000 people a day—it’s an exodus of not only skilled employees, but also “tribal knowledge,” learned on the job within industries or work plants and rarely captured in any manual or textbook.
It’s a startling fact that baby boomers are retiring at a rate of 10,000 per day. These men and women are leaving critical job functions, often at the heart of organizations. When senior management, executives, maintenance technicians, and engineers retire, they leave behind a gap that’s hard to fill.
on Wed, 07/29/2015
The benefits of maximizing your equipment’s uptime are obvious: if your equipment is not running, then it cannot produce; if it is not producing, then your revenue and profits are on hold.
on Mon, 07/06/2015
In recent years, portable filtration units, often referred to as filter carts, have become a common tool in the lubrication professional’s arsenal. Increasing demand for these systems has led to the development of a wide range of new products and driven down prices, which is a good thing. When filter carts first came onto the scene they were primarily used by service providers for decontaminating large systems. These early models were typically designed for low viscosity oils in large volume systems and were on the expensive side, making them unsuitable or impractical for many applications.
on Thu, 06/18/2015
Operational efficiency is a critical factor in the fluid processing industry. The synergy of fitting components and assembly technology to achieve this objective is the focus of Fit-LINE, Inc. Applying extensive polymer technology and injection molding expertise, the company has analyzed the design, tooling and manufacturing processes required to create high-performance solutions for demanding high-purity fluid processing applications. Through extensive R&D, testing and evaluation, Fit-LINE has isolated three variables that need to be addressed to ensure leak-free fitting assemblies.
on Mon, 02/02/2015
The purpose of a filter is to remove contaminants from a fluid stream either completely, or at least down to a given rating or specification. Filters are used to help control contaminants and are rated according to their ability to remove these contaminants from a liquid, gas or air stream. There are different methods in which the performance of filters are specified.
on Thu, 08/07/2014
Answer a number of key questions to identify the most appropriate choice
At process plants, a significant percentage of measurement devices aren’t correctly matched to their application, leading to decreased quality and consistency of the operation. Often, the source of this problem is the assumption that one type of level measurement sensor suits multiple applications.
on Thu, 04/11/2013
I was recently asked how the pressure at the vena contracta of a control valve in a liquid application can be determined. I am sharing my answer below.
on Mon, 01/21/2013
For most systems, in order to get good control with stability throughout the full range of required flow rates, we need to use a control valve that has an installed flow characteristic that is linear, or at least as close to linear as possible.
on Wed, 10/26/2011
All wells decline in production over time. This decline can usually be controlled by how hard the well is produced.
on Mon, 07/25/2011
There are two strategies for reducing control valve noise:
1. Source control, that is doing something to the valve to make it less noisy, and
2. Path control, that is doing something to prevent the noise from reaching the people who would be bothered by it.
on Fri, 07/22/2011
We will briefly discuss what causes aerodynamic noise and some of the things that can be done to reduce aerodynamic noise generated by control valves.
on Thu, 05/19/2011
Perhaps the most misunderstood area of control valve sizing is the selection of the pressure drop, Δp, to use in the sizing calculation
Valin provides outstanding solutions and are very responsive to our needs.