valve operator Articles
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Checking rotary valve clearances
Rotary valves are precisely machined to accommodate very tight internal clearances. In a smaller standard valve there should be a .003” – .005” gap between the tips and ends of the rotor and the housing / headplate. However, the clearances on many valves are customized to meet the needs of a specific application. For example, in applications with temperature greater than ...
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Rotary valve maintenance: preventing operating problems
Preventing operating problems by maintaining your rotary airlock valve Even though a rotary airlock valve is a relatively simple device, you have to maintain it properly to ensure it performs dependably. Proper maintenance will provide twin long-term dividends: better valve performance and smooth conveying system operation. First, know your valve inside and out. Maintenance workers should read ...
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Don’t Let Your Control System Control You
Regular maintenance ensures valves remain healthy. If your system is operating properly, you should physically inspect all valves at least every 12 weeks to check for tubing leaks and other abnormalities. Pressure gauges should be checked to ensure each valve is performing as designed. If you find something wrong, refer to the appropriate instruction manual, which may be available online. ...
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Preventing operating problems by maintaining your rotary airlock valve
Even though a rotary airlock valve is a relatively simple device, you have to maintain it properly to ensure it performs dependably. Proper maintenance will provide twin long-term dividends: better valve performance and smooth conveying system operation. First, know your valve inside and out. Maintenance workers should read the manufacturer's operating manual. This will help them understand the ...
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Healthy Control Valves
A simple maintenance routine can help ensure trouble-free valve operation. Whether the control valve in your system is the first one that has required maintenance or if you are experienced with maintaining multiple valves in your system, some simple guidelines can help keep them operating at optimal performance. Physically checking all valves at least every 12 weeks is important, assuming that ...
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Kansas Facility Finds Fast, Reliable Fix to Cavitation Damage
The Hutchinson (Kansas) Water Plant gets its water from 20 wells. The water is pumped out of the wells and into a reverse osmosis water treatment center to purify and ensure safe drinking water. At that point, a portion of the water is taken off from the main line, run through the reverse osmosis system and then mixed back with the well water. This is used to lower the total dissolved solids in ...
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Fascinating Features of Sanitary Check Valves
Sanitary check valves are mainly used to prevent the backflow of fluids. These valves only allow the flow in one direction. As a matter of fact, they are one of the few valves that have been self-automated to open and close with no assistance. Unlike other types of valves, check valves continue to work even after the plant has lost air, electricity or manual control from the operation team. They ...
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Don’t Just Replace a Check Valve, Upgrade It!
Just over 300 miles northwest of Santa Monica, CA, where the world’s first marine outfall was installed in 1910, check valves are being re-designed and engineered for outfalls all over the world. Outfalls – which are essentially discharge points of a waste stream into rivers, drains, sewers, or other bodies of water – are located in thousands of places across the planet. Many of ...
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Top 8 things to check when maintaining a Pressure Reducing Valve
Like every other piece of mechanical equipment we use, a control valve does require some maintenance. As budgets are stretched and time is tight, it can be tempting to ignore checking on valves that are often located in underground vaults and give years of operation without complaint, but eventually like everything else, they will fail. This article looks at 8 simple steps that if undertaken ...
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An Introduction to Valve Solutions for Subsea and Marine Applications
Subsea and marine environments are some of the toughest on the planet; extremes in pressure, potential degradation through saltwater and ozone, and the erosive and hazardous chemicals often dealt with in such industries ensures that any product put to use has tough demands placed upon it. We explore in more depth some of the subsea valve products available from MGA Controls that have been ...
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Sanitary Check Valves Astonishing Features
Sanitary check valves are mainly used to prevent the backflow of fluids. These valves only allow the flow in one direction. They are usually very small and simple. As the name suggests, they are designed to maintain a high level of hygiene while maintaining a continuous flow of the medium. These valves are mainly used for highly viscous liquids such as gels and ice cream. Sanitary check valves ...
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Keeping Your Control Valves in Good Health
Whether that brand new control valve in your system is the first one you have ever had to look after or if you are an old hand at valve maintenance with tens of valves in your system, there are a few simple guidelines and reminders for keeping it operating at optimal performance. It’s important to physically check valves at least every 12 weeks or so, assuming everything is running fine in ...
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Subsea Valves from Alco Valves
Subsea valves are used in equipment in an offshore environment, usually in pipelines but always to isolate or control the flow of a liquid or gas. Subsea valves are most commonly found in the oil and gas industries, and because of their working environment must be subjected to extremely thorough testing to ensure that they meet the very high safety and reliability standards set by those ...
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Industrial Gate Valves
Industrial valves are devices that are used to regulate liquids, gases, and slurries. The flow of liquids or gases can be controlled using these valves. This can be done through pipes and other passageways by opening, closing, and partially obstructing the passageway or pipe. Different types of Industrial Valves include: • Gate Valves • Globe Valves • Ball Valves • ...
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Coker Valve Monitoring in a Refinery
Measurement & Control Solution for Manufacturer of Valve Systems CAS DataLoggers provided the measurement and control solution for a large manufacturer of valve systems used in many different industries. The company produces ball, needle, choke, control, gate, and other types of valve systems with many different diameters. One of its customers was a refinery using a custom 3-way switching ...
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3 Tips to Consider Before Calibrating Your AC
Getting Off to a Great Start! Asphalt Cement (AC) is the most expensive material to create Asphalt. Keeping your AC system calibrated and working in proper condition is very important, not only to manage operational costs, but also, to ensure you have consistent mix quality. ...
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Learining how to Choose Materials for Gas Valves
The materials and the quality of gas valves are so important that their disqualification will lead to leakage in-or-outside the body of the valve. If the strength, rigidity and overall performance of the components of the valve body cannot meet the requirements or even break, it will result in the spillage of gas and explosion. Therefore, material and quality are the most critical part during the ...
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Creative Service Solutions - Case Study
A paper mill in Finland suffered the complete failure of a large four-stage vacuum blower. Creative problem solving resulted in a repair time of only seven days. The maintenance team built a functional blower by using parts from three outdated machines. The combined efforts of Sulzer and of the paper mill’s own engineers made it possible. The paper industry has to cope with a ...
By Sulzer Ltd.
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Fuel terminal upgrade installs advanced valve actuation and control - Case Study
Sector: Oil & Gas Category: Control Networks, Electric Actuators, Fluid Power Actuators, Services Products: CP, Extended Scope, Field Service, IQ3 Range, Pakscan Overview Independent tank storage provider Vopak is increasing and enhancing fuel capacity at the Vopak Terminal Durban in South Africa, an important site where activities encompass the import, export and distribution of ...
By Rotork plc
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Pumps’ chemical resistance, simple design help reduce downtime at trinity river water plant
The Trinity River Authority’s Huntsville, Texas, Regional Water Supply System (HRWSS) provide six million gallons per day of portable water to 28,000 area residents. Each day, 330 gallons of alum are added to incoming river water to remove mud and suspended solids, along with 200 gallons of 50% caustic soda to raise the water’s pH level. In the past, the corrosive nature of the ...
By Aquflow
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