Gabe Montgomery, Engineering Manager, Tank Components Industries, an L.J. Star subsidiary located in Springfield, Missouri, is one of several L. J. Star engineers to serve on important ASME Bioprocessing Equipment (BPE) Committees. His work on the committee is part of the company’s contribution to advancing the technologies that shape our industry and to keep our customers informed on changes in the field. BPE held several meetings in San Diego, California in May 2018, and Gabe reports back on what he heard:
Michael Bosley, one of L.J. Star’s Product Support Specialists, took part in ASME Bioprocessing Equipment (BPE) Committee Meetings, held May 7-10, 2018, in San Diego, California. As a leading supplier to the biotechnology industry, we take our responsibility to participate in advancing the industry very seriously. By participating in the work of these committees, we hope to stay on the leading edge of evolving technologies; at the same time, we want to share updates on the topics these committees are weighing with you, so you can stay up to date on industry trends.
Mike participates in the Subcommittee on Process Instrumentation, part of the Bioprocessing Equipment Standards Committee and the Board on Pressure Technology Codes and Standards. Process instrumentation includes sensors, transmitters, analyzers, controllers, recorders, transducers, control elements, and supporting components such as light sources and sight glasses.
The Task Group on Optical Devices was formed to revise the language in the Optical (sight glass) section of the BPE Specification and move that content from System Design (SD) to Process Instrumentation (PI). The task group will be responsible for content related to sight glasses, fused glass, and lighting.
The four-year Task Group on Turbine Flow Meters is charged with adding new content to the BPE Specification on the use of Turbine Flow Meters in product contact lines. The section for Turbine Flow Meters has been written from scratch, balloted numerous times, revised and re-submitted, and is now undergoing final balloting. Non-mandatory content is also being developed while balloting continues.
The Subcommittee on Process Instrumentation has begun development of a template for use as an unofficial guide for developing new content. This template has been submitted to the Main committee and has been accepted for use. Process Instrumentation Subcommittee members have voted and approved the use of the template, and a formal ballot to the Main Subcommittee will follow.
A “Light” Recipe for Craft Brewing Success
Halogen lamps were once the standard choice for craft brewers’ vessel sight glass lighting. However, a new generation of LED luminaires is growing in popularity for this application. Consider these questions to decide whether it’s time for your brewery to invest in making the switch to LEDs.
- How hard is it to verify your vessels are thoroughly cleaned?
An improperly cleaned vessel can quickly lead to costly cross-batch contamination problems and unsellable products. LED luminaires can provide twice the light output of halogens or more, so it’s easier to confirm the effectiveness of your cleaning process.
- What are the hidden costs associated with your halogen lights?
The output of a typical halogen bulb is 15 percent light and 85 percent heat, with the heat coming from the infrared light the bulb produces, which can’t be seen by the naked eye. Unlike halogens, LED luminaires produce 55.6 lumens per watt of electricity consumed while producing little or no heat. In contrast with halogen lights, which have fragile filaments, LED lights are vibration and impact resistant, offering dramatically longer lifetimes for lower maintenance costs and fewer process interruptions.
- What color do you think your beer is?
The yellowish light that halogens produce can be problematic if you need to check the beer’s color to make process adjustments at various points. Their 2800K color temperature also approximates dusk and can cause eye fatigue. LED luminaires typically produce a white light with a cool color temperature that is optimal for illuminating stainless steel vessels.
Compare the perceived color produced by halogen lights (left) with the more true to life color when LED luminaires (right) are used.
- Are your halogen lights a pain to keep clean?
Halogen bulbs are installed in a wide range of fixtures, which may or may not be optimized for food and beverage production, complicating the cleaning process. In contrast, some of the latest LED luminaire designs have a wash-down-safe, crevice-free design that is dust and waterjet tight and are constructed of food-grade stainless steel.
- Does controlling your sight glass lighting require climbing a ladder?
Switching halogen lights on or off often requires climbing to the top of the vessel to access a manual switch on the light itself, raising the risk of injuries. A growing range of LED luminaires support remote control over a broader array of operating modes, such as momentary, short timed and long timed. A variety of factory-programmable options are also available, including timer duration, initial brightness, and LED on at power up.
- Do you customers prefer “greener” brewers?
LED luminaires provide optimal illumination while consuming just one-tenth of the energy of a conventional halogen light. Lowering your brewery’s carbon footprint by switching to LED luminaires helps reinforce the message that you’re serious about your operation’s impact on the environment.
# # #
For more details on LED-based sight glass lighting options for craft brewing, download L.J. Star’s free informative white paper (pdf): Crafted for Success: Six Vital Questions for Brewery Sight Glass Lighting.
Why Metaglas® Is Considered the Safest Sight Glass in the World
Since it was developed in the 1970s, Metaglas® has been known as the safest sight glass in the world. A number of chemical and manufacturing companies collaborated to create Metaglas, and to establish the standard with which it complies and by which all other sight glass is measured, a standard now called DIN7079.
Metaglas was created to improve safety conditions within plants that handled corrosive chemicals, chemicals worked at high temperatures and those worked under high pressures. The safety concerns became serious enough that competing companies joined forces to create Metaglas.
Using sight glasses is essential in the production of pharmaceuticals, as is maintaining the functionality and cleanliness of those sight glasses. The good news is that a wide variety of sight glass accessories are available to assist pharmaceutical manufacturing personnel in the production of pure, high-quality product in every batch.
Sight glass wipers aid visibility by cleaning the inside glass surface of light ports and sight ports. Wiper assemblies must be constructed of high-grade stainless steel with either Teflon or silicone blades and work in conjunction with a spray ring or set of spray nozzles. They come in two types.
The Type I manual wipers require a bore-hole through the sight glass. They can operate at temperatures as high as 220 degrees F and under pressures as high as 90 psi.
When a higher-pressure sight glass requires cleaning, the Type II manual wiper, in conjunction with a DIN28120 sight glass, must be used. Type II wipers require a threaded bore hole through the sight glass cover and weld pad for proper installation. Type II wipers can operate at temperatures of up to 428 degrees F and pressures as high as 235 psi.
Sight glass wipers can be motorized and automated. Constructed in both explosion-proof and non-explosion-proof models, the explosion-proof models are rated to EEx d IIC T5 (Zones 1 & 2 and 21 & 22) and are able to operate in ambient temperatures ranging from minus 4 degrees F to 122 degrees F. Motors generally fit specific types, sizes, and brands of wipers, and operate on a variety of direct and alternating currents.
Spray Rings and Nozzles
Sight glass wipers operate together with a spray ring or spray nozzles to achieve effective cleaning. The spray ring must fit ANSI flange connections for use in intermittent or continuous pressure-cleaning operations. For versatility, the ring delivers a variety of spray media, including fluid or air. The rings can include varying numbers of spray nozzles depending ring diameter. They are also available in different materials and sizes for diverse applications. Materials used include carbon steel, stainless steel, Hastelloy, and other alloys. Temperature and pressure ratings vary depending on the ring material and ANSI-rating.
Sight glass light timers are convenient where illumination is limited to a specific period. A timer switches lights on and off automatically, reducing power consumption and heat build-up, and providing improved lamp life. Timers fit either externally to, or internally within the containment vessel, can operate in hazardous and non-hazardous conditions, within a wide temperature range, and at a variety of voltages.
The heating jacket is an additional accessory for standard (view through) sight flow indicators. Steam from the heating jacket prevents cool spots in the process line while allowing observation and preserving a clear view of the manufacturing process.
Use of the wide variety of available sight glass accessories can significantly improve the drug manufacture process.
For pharmaceutical manufacturers, maintaining the cleanliness of their facilities, especially their stainless-steel process vessels, is Job #1. A UV light for your sight glass can help, as UV light can be used to inspect and verify SIP and CIP procedures have done an adequate job.
Vessels must be cleaned and sterilized thoroughly between each product batch. This is important to prevent contamination from previous batches or residual cleaning agents from adulterating the product. Depending on the type of drug being produced, an inadequately cleaned vessel could potentially force the facility to quality reject millions of dollars’ worth of compromised product.
As hot water passes through ground coffee beans, it extracts flavors, colors, and stimulants that make mornings more livable for many of us. When it comes to pharmaceutical processing, however, extraction can be a bad thing, as leaching from process system surfaces can extract unwanted elemental impurities.
The Chem Show is where engineers, plant managers and other CPI personnel come together to see the latest equipment & technology, meet product experts, and discover new ways to optimize their plant operations. Bringing together more than 5,000 industry professionals and 300 exhibiting companies, the Show is the largest North American event exclusively focused on the processing of fluids, powders and gases. Held every odd year since 1915, the Chem Show has a proven track record of helping the CPI meet the ongoing demand for faster, smarter, cleaner, and more efficient processing facilities.
Don’t forgot to stop by booth 431 while you are there!
- Start: October 31
- End: November 2
- Event Tags:
How to specify an ATEX explosion-proof light for your sight glass
The many ratings and standards bodies can be a confusing alphabet soup of acronyms… ATEX, UL, NEC, IEC, IP and NEMA. When is ATEX the right one?
If you are considering an ATEX explosion-proof light for your sight glass, then you already know that a light with an ATEX rating will be safe to operate in a potentially explosive atmosphere.
First, forget about IP and NEMA ratings. Those define housings. For example,
What is First-Indication Flow Rate?
A common question that I hear is, “what is the first-indication flow rate?”
Sight flow indicators are a fail proof means of observing flow within a process pipeline. To make it easier to see the flow, often a mechanical indicator is added behind the window… a spinning rotor for example. What people are asking is, what is the minimum flow needed to move the indicator?