Process Control

Below you will find published articles written by Valin's own experts and information from our suppliers.   
Submitted by Peter Jessee || Valin Corporation
on Wed, 06/16/2021
Specifying Trip Valves is Critical for LNG Service

Appropriately specifying trip valves in the world of natural gas liquification is a critical element. Failing to do so effectively can risk the lives of operators and maintenance personnel working in close proximity to the equipment, and can sometimes cause irreparable damage to expensive turbomachinery.

Submitted by Rich Wilbur || Valin Corporation
on Thu, 05/20/2021
Inventory Management Services

By taking advantage of Valin’s program, customers can be confident that their inventory management function is fully optimized.  They can rest assured that the right parts will be in the right place right when they need them, while keeping the peace of mind that their transactional costs are being lowered and the KPI’s are being adequately analyzed.

Submitted by Peter Jessee and Rick Ferdon
on Tue, 05/11/2021
Control Valve Technology. How Do I Choose?

Application requirements are paramount, but don't overspend when a less expensive option will do.

Submitted by Jon Monsen || Valin Corporation
on Thu, 03/11/2021
Calculating the Installed Flow and Gain of a Control Valve

A simple process method based on the principle that piping pressure losses are approximately proportional to flow squared is presented.

Submitted on Mon, 03/01/2021
Averting a Gen-set Disaster

A fuel leak in any part of a generator set can potentially be a catastrophe for the operator. But the issue can be tackled.

Submitted by Peter Jessee || Valin Corporation
on Tue, 01/05/2021
Looking beyond globe control valves

While globe control valves are still a viable solution, modern rotary control valves offer many advantages and serve as a more suitable solution in certain process applications.

Submitted by Peter Jessee || Valin Corporation
on Tue, 08/11/2020
Control Valve Sizing

Most people who are familiar with control valves have seen the formula for calculating the valve capacity (Cv) required to pass a given flow rate of water. This seems fairly straightforward until you ask yourself, what is the correct value of differential pressure to use?

Submitted by Fred Gridley || Valin
on Tue, 07/21/2020
Control Panel Enclosure

Maintaining a consistent internal environment for your enclosures is critical for equipment to function properly. The National Electrical Manufacturers Association (NEMA) has defined standards for specific enclosures designed for the application and environment when correctly installed. Learn more.

Submitted by Greg Neneman || Valin Corporation
on Wed, 04/01/2020
Instrumentation Fittings for Power Plants

A lot must be reviewed prior to selecting the right fitting for power plant instrumentation applications. Among the choices are whether to use single- or double-ferrule designs; heat codes, lubrication, and corrosion resistance must also be considered.

Submitted by Dr. Jon F. Monsen and Dr. Hans D. Baumann
on Wed, 12/18/2019
Stop Cavitation from Destroying Your Control Valve Trims

The devastating effects cavitation can have on control valve internals is widely appreciated. In this article, the authors therefore explain the origins of cavitation, provide an easyto-use method to estimate cavitation sound levels and conclude with approaches to reduce or even avoid cavitation.

Submitted by Greg Neneman || Valin Corporation
on Mon, 11/18/2019
Instrumentation Fittings

In the world of instrumentation, there are a number of different topics discussed and analyzed.  However, one that should not be overlooked is that of instrumentation fittings. Do you know what technologies are available? Do you know the strengths and /weaknesses? Are there any new trends?

Submitted by Kari Kohonen || Valin Corporation
on Sun, 01/20/2019

Specifying control valves and engineering a system in which the flow of a particular product is completely optimized for superior performance and yield can be a challenging process. A number of factors must be considered during this practice to avoid process-destroying problems. Learn more.

Submitted by Jon Monsen, Ph.D., P.E., Valin Corporation
on Mon, 12/17/2018

Many engineers may wonder if it is possible to have flashing liquid flow in a control valve even if flow is not choked. The short answer is yes, but it is not very common. This article provides a more detailed answer to this question.

Submitted by Ron Jett || Valin Corporation
on Wed, 12/12/2018

Within a refinery, four main utilities are considered essential to operations: electricity, natural gas, water and compressed air.

Submitted by Jon Monsen, Ph.D., P.E., Valin Corporation
on Fri, 09/28/2018

I was recently asked how the installed flow characteristic of an equal percentage valve in a system that includes a significant amount of pipe or other pressure-consuming elements “magically” becomes a linear, or approximately linear, installed flow characteristic.

Submitted by Patrick Hyland || Valin Corporation
on Fri, 08/17/2018
Nitrogen Generation in the Metal Industry

In the past, bulk storage systems have been used to house nitrogen on-site at the manufacturing plants, but this method of storage can result in a significant loss in revenue. So, what is the solution for plant owners? The answer begins with in-house nitrogen generation systems. Learn more.

Submitted by iPolymer
on Tue, 06/19/2018
iPolymer High Purity PTFE Pressure Regulator

The iPolymer PTFE Pressure Regulator is designed for use with high purity water systems and aggressive chemical applications to regulate and maintain a constant pressure downstream of the valve and prevent over-pressurization of sensitive equipment.

Submitted by Jon Monsen, Ph.D., P.E., Valin Corporation
on Mon, 04/16/2018

Liquid choked flow in control valves results in either flashing, or more often, cavitation.

Submitted by Jon Monsen || Valin Corporation
on Thu, 01/04/2018

Valve sizing and proper application of control valves have always gone hand-in-hand. However, the tools available to valve users have changed and improved significantly over time.

Submitted by Chris Sullivan || Valin Corporation
on Tue, 11/21/2017

Despite the demand for standardized communication protocols among manufacturers, both the manufacturers and end users face challenges when it comes to agreeing on a path.

Submitted by Ray Herrera || Valin Corporation
on Mon, 04/03/2017
Pipe and Valve Selection

When selecting the pipes and valves for a cooling system, it is important to understand the options available—and the possible outcomes associated with each selection. Many factors can impact the effectiveness, longevity and quality of the overall cooling system. Learn more.

Submitted by Brian Sullivan
on Tue, 03/08/2016

Spectroscopy-based measurement on manufacturing lines yields greater process control

Submitted by Ray Herrera || Valin Corporation
on Mon, 11/30/2015
Retrofitting Customized Valves

Oil and gas engineers face a problem in accurately and reliably measuring and monitoring the various fluids that are introduced into oil pipelines from well site pumping stations. A thorough understanding of both the oil separation process and the properties of valves and actuators is required.

Submitted on Thu, 10/01/2015

United Electric Controls has introduced a unique new family of HART capable transmitters that provides programmable switching functionality for industrial process monitoring applications. The One Series 1XTXSW transmitter line is the first to integrate HART 7 compatible 4-20 mA output. Lean more.

Submitted by Ray Herrera, Valin ||
on Tue, 07/14/2015
Valve-Selection Best Practices

Precise combinations of valves and other equipment lead to process success. A biopolymer fermentation process provides an example of proper valve selection.

Submitted by Jon Monsen Ph.D., PE // Flow Control Network Magazine
on Wed, 06/17/2015

This is Part IV in a four-part series based on the contents of the new textbook, “Control Valve Application Technology, Techniques and Considerations for Properly Selecting the Right Control Valve.”

Submitted by Jon Monsen Ph.D., PE // Flow Control Network Magazine
on Thu, 05/21/2015

In order to get good control with stability throughout the full range of required flow rates, one must use a control valve that has an installed flow characteristic that is linear, or at least as close to linear as possible in most systems.

Submitted by Chad Lieber | Prozess Technologie and Brian Sullivan | Valin
on Tue, 05/05/2015

In a world where most information is available in an instant, plant managers and engineers are continuously trying to find ways to improve the efficiency of processes along the manufacturing line.

Submitted by Patrick Bartell and Nathan Ehresman
on Wed, 04/01/2015
Coriolis Mass Flowmeter

When addressing the needs of measurement operations involving various densities and amounts of liquid, Coriolis mass flowmeters are often chosen for their accuracy, durability and reduced maintenance costs. Applications involving custody transfer benefit from their simple and dependable characteristics.

Submitted by by Jon Monsen, Ph.D., P.E.
on Fri, 03/27/2015
Control Valve Application Technology Book

Purchase Valin’s Control Valve Application Technology book today to learn how to apply the right techniques to selecting the correct control valves.

Submitted by Jon Monsen Ph.D., PE // Flow Control Network Magazine
on Thu, 03/05/2015

This is Part II in a four-part series based on the contents of the new textbook, “Control Valve Application Technology, Techniques and Considerations for Properly Selecting the Right Control Valve.”

Submitted by Jon Monsen Ph.D., PE // Flow Control Network Magazine
on Tue, 02/24/2015

This article discusses the importance of selecting the correct flow characteristic and correctly sizing the valve in order for the valve to properly control the process.

Submitted by Jon Monsen Ph.D., PE
on Wed, 01/14/2015

It’s important to understand the importance of proper control valve sizing. If the valve is too small, it won’t be able to pass the required flow. In actual practice, undersized valves are fairly uncommon, but oversized valves are all too common.

Submitted by Prozess Technologie
on Wed, 12/17/2014

The Reveal™ optical spectroscopy-based measurement system will help customers increase quality, yield, and productivity while reducing both risk and downtime in the manufacturing environment. Its measurement capabilities are unmatched by legacy techniques.

Submitted by WIKA Instrument Guru
on Thu, 12/11/2014

Loss of containment is one of the costliest things that can go wrong at a plant. Accordingly, smart enterprises employ a variety of measures that ensure loss of containment just doesn’t happen – or when it does, the adverse circumstances are kept to a minimum.

Submitted by Metso Engineering Team
on Thu, 12/11/2014

The noise abatement laws and health and safety legislation are becoming increasingly strict. Metso introduces Q2- Trim, the optimum solution for noise problems, that at the same time fulfills all legislative requirements and customer needs.

Submitted by Patricia Stockdill | Bakken Breakout
on Tue, 12/09/2014

Emergency order required all rail shippers to test products from the Bakken to ensure proper classifications of the oil within federal regulations before it's transported. The intent was to ensure shippers properly classified crude oil for transportation and to quantify the range of physical and chemical properties.

Submitted by Patrick Bartell
on Tue, 11/18/2014
Three-phase Heater Treater

The accurate allocation measurement of oil, water and gas is a constant priority for managers of surface operations, particularly with the recent oil boom in parts of the U.S. These measurements are the basis of the financial transaction between oil companies and royalty owners.

Submitted by PennEnergy Editorial Staff
on Fri, 10/03/2014
Control Valves

Jon F. Monsen, Ph.D., P.E., a control valve technology specialist for Valin Corporation, has written a book detailing the many facets of control valves. The book, Control Valve Application Technology, Techniques and considerations for properly selecting the right control valve. Learn more.

Submitted by Ernie Reichenbach | Flow Control Magazine
on Mon, 08/25/2014
Allocation Measurement Systems: Enabling optimum accuracy in well extraction processes

The recent oil boom in the United States, driven by rapidly advancing extraction technologies, presents new and critical challenges to operators in the measurement of oil, water and gas produced in surface operations.

Submitted by Nick Benedick for New Technology Magazine
on Sat, 02/08/2014

Valin is in the final stages of successfully commissioning 65 Lease Automatic Custody Transfer systems (LACT) for a very large project with one of the largest independent midstream energy companies in North America. The LACT systems were needed for an oil gathering project in the Myrmidon field in the Bakken Shale play in North Dakota.

Submitted by Jon Monsen and Peter Jessee // Valve Magazine
on Mon, 06/17/2013

Certain frequencies of sound can play havoc on industrial equipment. When control valves are not selected appropriately, there is an increased risk for cavitation, which causes high noise and vibration levels, resulting in very rapid damage to the valve's internals and/or the downstream piping.

Submitted by Dr. Jon Monsen, featured in Valve Magazine
on Mon, 01/21/2013

In a recent interview with VALVE Magazine, Dr. Monsen discussed how the analysis of installed gain can be a guideline for selecting the control valve that will provide good control with stability throughout the full range of required flow rates

Submitted by Jon Monsen, Ph.D., P.E., Control Valve Technology Specialist at Valin
on Thu, 08/16/2012
Rule of Thumb for Control Valve Sizing

When control valve professionals talk about "control valve sizing," they really mean the entire process of selecting the valve that will do the best job of controlling the process. Selecting the right size valve is an important part of the process, but there are other equally important considerations as well.