Processing & Flow Control
- April 23, 2014
The ratings in this chart are based on the results of laboratory tests. They reflect the relative capabilities of various Teflon, silicone, PVC and rubber hose formulations to withstand specific chemicals. NOTE: The ratings in the chart DO NOT reflect the extent to which extraction may occur or the extent to which fluids may undergo any physical changes in properties or composition as a result of coming into contact with the hose. Saint-Gobain Performance Plastics makes no representation or warranty concerning the susceptibility of any fluid to become contaminated or undergo changes in properties or composition as a result of possible extraction of hose ingredients by the fluid to be transmitted. Certain corrosives that would be destructive to the hose with prolonged exposure can be satisfactorily handled for short periods if flushed with water after use. All ratings are based on room temperature (73°F). Chemical resistance will be adversely affected by elevated temperatures.
- April 23, 2014
Embark on a journey of secure and efficient hose installations with this crucial information encompassing pre-installation inspection, service life factors, and meticulous installation procedures. Before initiating the installation process, meticulously examine the hose for any visible damage, ensuring that only pristine hoses are deployed. The guide emphasizes the importance of proper hose selection by evaluating factors such as materials, pressures, chemical compatibility, and temperature. With detailed visuals and instructions, the guide provides insights into hose movement restrictions, torque sequences, and minimum bend radii. Whether it's preventing severe bends, avoiding twisting during assembly, or using torque wrenches for accurate tightening, each step is elucidated for a foolproof installation process. Additionally, explore the factors influencing service life, from corrosion considerations to fatigue, wear, and proper hose configuration. This guide is an indispensable resource
- April 23, 2014
Explore our informative chart on filtration ratings! It covers mesh sizes, micron values, and their corresponding inches. The chart details different filtration levels, from coarse to micro, showing what each mesh size can capture. Whether it's gravel, beach sand, or other tiny particles, this chart is a handy reference for anyone interested in filtration. It's an essential tool for understanding how filtration works across various materials.
- April 23, 2014
A wide variety of filter media and overscreens enable you to separate particles as small as 30 microns or as large as 1/4" from fluid product. This ranges from achieving semi-clarity in juice or removing cheese fines from whey up to extracting oversize nutmeats from a mix. This LC Flow Micron Rating Chart contains the information for filter media and overscreens.
To order media or overscreens: Call Nelson-Jameson with the type of filter, with length, and one of our trained technical support staff will find the product appropriate for your application.
- April 23, 2014
Utilize our website resources for maintenance training and reference. Our online library is constantly growing, so please check back often. If you don't see the information that you need, please contact our valve product specialists and we can send it and get it posted for future reference!
- April 23, 2014
EPDM is the standard elastomer on many pumps and valves and is not compatible with petroleum-based products. Using lubricants such as the popular Petro-Gel or Lubri-Film in these applications is not a good choice as it will degrade your equipment elastomers and decrease the life of your parts.
Due to the high melting point non-CIP lubricants have, there is the potential to contaminate your product with bacteria such as Listeria. Petroleum-based products have a melting point of 190°, but typical CIP cycles are only 160 to 180°F, meaning the residue will not melt and clean away. If a spare part somehow came in contact with bacteria, the high melting point of these non-CIP lubricants would function to protect the bacteria during the CIP cycle and could contaminate your products.
To lubricate your EPDM pump and valve parts, use Haynes or McGlaughlin CIP films (
- April 23, 2014
Quite often, customers have questions regarding the subject of hose flexibility. Many different terms are used to describe this attribute of the Saint-Gobain Performance Plastics Sanitary Couplers line. To demystify this complexity, we present a comprehensive Hose Flexibility Glossary. This glossary aims to shed light on key terms utilized in the hose industry, offering formal definitions for concepts such as Bend Radius, Minimum Bend Radius, Dynamic Bend Radius, Static Bend Radius, Force to Bend, and various Pressure Definitions. Whether you're dealing with fluoropolymer hose, all-rubber hose, or metal hose, this glossary serves as a valuable resource to enhance your understanding of hose flexibility parameters.
- April 23, 2014
Discover the world of sanitary gaskets with our comprehensive range of flexible and non-toxic gasket compounds that adhere to stringent FDA specifications. Engineered for direct contact with dairy products and edible oils, these gaskets are also designed to meet the criteria set by 3-A, USDA, and NSF standards. Not only do they exhibit low-swell characteristics, making them well-suited for exposure to oils, steam, and water, but they also won't absorb taste or odors, ensuring the integrity of your products. Our gaskets are available in various materials, including the popular Buna-N, known for its oil resistance, EPDM for steam and hot water service, Viton with exceptional fluid resistance, silicone for outstanding low-temperature flexibility, and Teflon with an impressive temperature range. Each material comes with its unique set of properties, catering to specific application requirements. Shop with confidence, knowing that our gaskets are sold individually, and reach out to our knowledgeable
- April 23, 2014
Prevent premature Washdown hose wear and failure. Washdown hoses are often subjected to physical abuse
while in service. Select a hose that meets or exceeds the application it is intended for.Consider temperature, pressure, and environmental concerns such as abrasion and chemical resistance.
Every plant should have a maintenance/inspection plan in place to ensure the longest possible life of the hose.Be sure to consider these steps in your plan:
- Store hose properly when not in use. Hose racks or reels are highly recommended to keep hoses off the floor
and out of harms way. Pay attention to humidity, temperature, ozone and sunlight. Storing out of direct sunlight,
in a room with moderate humidity and a temperature range of 50° to 75°F is recommended. - Always shut off the water supply to the hose when not in use and open the nozzle to relieve the pressure before storing. Leaving water in the hose subjects it to constant pressure
- Store hose properly when not in use. Hose racks or reels are highly recommended to keep hoses off the floor
- April 23, 2014
Centrifugal pump cavitation can be described as the formation and eventual collapse or implosion of vapor bubbles inside a pump.
A primary cause for cavitation is inadequate net positive suction head available (NPSHa). Poor NPSH leads to lower liquid pressure in the pump and if pressure in the eye of the impeller falls below the vapor pressure of the fluid, then cavitation can begin. When this takes place, the following can occur:
- Pitting on impeller blades.
- Bearing failure.
- Mechanical seal failure.
- Shaft breakage.
- Poor efficiency.
Preventing this type of pump cavitation may require several changes in system design or operations. Increasing pressure at the suction of the pump, decreasing the temperature of the liquid being pumped, and reducing head losses in the pump suction piping can increase the NPSH.
Implosion of vapor bubbles that form within the liquid inside a pump is what causes
