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Posts Tagged ‘Code Welding’

Precision Pipe & Vessel, is a Denver based ASME welding and equipment fabrication business with ‘NB’ ‘U’ & ‘R’ Stamps and certification. Precision Pipe  designs and builds individual components and complete turnkey skid packages. Precision Pipe has successfully completed more than 4500 jobs since 2000 which include small piping jobs, repairs of pressure vessels, TEMA Type Heat Exchangers, Pressure Vessels, and complete turn key skid packages.

Precision Pipe has a long history of providing cost competitive turnkey packages complete with electrical, instrumentation, controls, and complete engineering packaging. Precision has designed and built many components for installation including: Natural Gas Processing Plants (JT & Refrigeration), Separation, Refrigeration Packages, Dehydration, Compression, Chillers, Line Heaters, Production Units, Cabin Heaters, Tanks, Towers, Stacks, Flares, Boilers, Land Fill Methane Collection.

Although Precision Pipe specializes in Chemical, Oil & Gas processing equipment and facilities, Precision Pipe also has significant domain experience in Renewables, Co2, Prototyping and other process equipment. Precision is staffed with a team of professionals with diverse backgrounds, ingenuity, and the willingness to take risk. We find satisfaction in developing new products and building prototypes. Precision Pipe has helped dozens of companies (including ourselves) develop new products, build fully functional demonstration facilities, and seek patent protection for these innovations. Our product development experience includes gas processing equipment, catalyst, fixed and mobile laboratories, reactors, gasification, alternative fuels, cellulosic biofuels, clean tech, directional drilling, fracking, textiles, cosmetics, pharmaceuticals, oder & emissions elimination, distillation, traditional and renewable energy related developments.

At Precision Pipe We are always looking for ways to save our customers money, improve lead-time, and deliver an excellent product. If you haven’t had a chance to work with us, give us a call,  we would love the opportunity to partner with you.IMG_3019

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 A fantastic Article found on: http://www.csb.gov/newsroom/detail.aspx?nid=293

November 09, 2009

Without appropriate safeguards, pressure vessels can pose lethal dangers.
Washington, DC, November 9, 2009 – CSB Chairman John Bresland released a new video safety message today asking jurisdictions across the country to adopt the ASME Pressure Vessel Code to reduce the number of accidents involving catastrophic pressure vessel failures in process industries.
The safety message can be viewed on CSB.gov and on the CSB’s safety message channel,www.youtube.com/safetymessages.
In the safety message, Chairman Bresland warned that without appropriate safeguards, pressure vessels can pose lethal dangers. Chairman Bresland said, “Pressure vessels store tremendous amounts of energy and you should never become complacent about the risks.”
Particular danger exists when vessels are improperly installed, welded, or modified, or when they lack effective pressure relief systems. Mr. Bresland refers to several incidents investigated by the CSB including an explosion at a Louisiana natural gas well that killed four workers when a tank rated only for atmospheric pressure was exposed to gas pressure up to 800 pounds per square inch.
In April 2003, an 8-foot tank used to heat sugar caramel exploded when the vent line became blocked, killing an overnight operator, releasing large amounts of ammonia, and forcing a community evacuation. The vessel had no pressure-relief system.
Additionally, in 2004 a pressure vessel weighing 50,000-pounds exploded at a chemical plant in Houston, Texas, throwing heavy fragments into the community, which damaged a church and businesses.  The CSB found that the company improperly modified and welded the vessel.
Chairman Bresland stated that these accidents can be avoided if states implement long-established codes for safe use. He said, “There are only eleven states that do not require companies to follow the Pressure Vessel Code of the American Society of Mechanical Engineers (ASME). I ask all jurisdictions to adopt the Pressure Vessel Code and related boiler standards. Lives will be saved as a result.”
The ASME Code provides the fundamental safeguards for pressure vessels, including design, welding procedures and fabrication, testing, and pressure relief. In 2006, the CSB called upon the City of Houston to adopt the Code to protect residents and industrial facilities from these incidents. However, Houston has failed to implement this recommendation despite reoccurring pressure vessel failures such as a summer of 2008 heat exchanger explosion in a resin-production facility that killed a veteran supervisor.
The CSB is an independent federal agency charged with investigating industrial chemical accidents. The agency’s board members are appointed by the president and confirmed by the Senate. CSB investigations look into all aspects of chemical accidents, including physical causes such as equipment failure as well as inadequacies in regulations, industry standards, and safety management systems.
The Board does not issue citations or fines but does make safety recommendations to plants, industry organizations, labor groups, and regulatory agencies such as OSHA and EPA.
A powerful reminder about the purpose of the ASME code and the dangers of not using a qualified and certified ASME code shop for repairs and alterations.  The nominal costs of making proper repairs to ASME pressure vessels is insignificant to the potential loss of human life. Likewise, the risk of installing non-code vessels is equally dangerous and potentially deadly.

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Denver, CO – July 19, 2011 – We are thrilled to announce today the introduction of our groundbreaking liquid carbon dioxide based fabric and textile cleaning machine. CO2Nexus is a Denver, CO-based company dedicated to developing equipment and consumables that use liquid carbon dioxide (CO2) to clean fabrics and textiles. We are a spin-out of the premier worldwide CO2 R&D entity – FeyeCon Development & Implementation B.V. We are also pleased to announce our partnership with Denver-based Revolution Cleaners, who will field the first dry cleaning unit at their Denver plant.
Liquid CO2 – the same substance that puts the fizz in every carbonated beverage – has excellent solvent properties and is intrinsically sustainable, since it is in-exhaustible, cheap, non-toxic, non-hazardous, non-flammable, and cannot spill into the soil or groundwater. Chemical based solvents currently used in the dry cleaning industry are being phased out and/or have health and liability risks. Water based laundering methods are taxing already severely depleted water resources, especially in the Western U.S.
The CO2 used in the CO2Nexus systems is recycled from existing industrial processes and as such is completely carbon neutral.
CO2Nexus will also field a system later this year targeting the industrial laundry market, in partnership with one of the largest U.S. based service providers in that market. Industrial laundry uses water as the primary cleaning solvent.
Richard Kinsman, CEO of CO2Nexus comments: “Chemical and water based dry cleaning and laundering methods have real consumer marketing and environmental-health liabilities that will only get worse. At the same time, the performance, operating costs, sustainability and consumer marketing benefits of CO2 are attractive and will continue to get better, which is why we believe it to be the best long term option. Our association with FeyeCon on the technology side, and with the primary service providers at the industry level assures us that we have both the scientific and practical basis to implement the technology.”
CO2Nexus will offer commercial units starting in Q1 of 2012.
Denver-based Precision Pipe & Vessel, LLC will serve as our manufacturing partner. Mr. Kinsman: “PPV has tremendous know-how and a real track record in gas processing equipment and components. They bring tremendous value to our organization and we are proud to be partnered with them.”
Edward Pizzarello of Revolution Cleaners confirms their involvement: “We’re excited to be able to install the first unit in our facility. Revolution Cleaners has been on the leading edge of CO2 cleaning in Denver for over 6 years. CO2 has been our only cleaning solvent, and we’re thrilled with the opportunity to move to the next generation of CO2 cleaning technology.”
State and federal agencies have established grant based incentives to encourage the adoption of CO2 based systems, beginning in CA. Other states are anticipated to follow.
About CO2Nexus Inc.
CO2Nexus Inc. designs and sells equipment that uses recycled liquid carbon dioxide (CO2 ) to replace water and chemical based cleaning solvents in dry cleaning and industrial laundry.  Liquid CO2  – the same substance used to “fizz” beverages –  is an intrinsically excellent cleaning solvent and, unlike other solvents, is in-exhaustible, cheap, non-toxic, non-hazardous, non-flammable, and leaves zero secondary waste. www.co2nexus.com
About Revolution Cleaners
Revolution Cleaners cleans exclusively with recaptured, liquid carbon dioxide (CO2 ) & water (H2O); positioning themselves as the most experienced dry cleaner in Colorado using these methods. CO2  and H2O are naturally effective cleaning agents for a wide range of garments and household items. The absence of heat in Revolution’s  cleaning process ensures that stains come out more readily and garments have a longer life. With Revolution, your clothes are cleaner, softer and fresher than with traditional dry cleaning methods. www.revolutioncleaners.com
About Precision Pipe & Vessel
Precision Pipe & Vessel (PPV) is a Denver-based fabrication facility with extensive experience in gas processing, alternative energy and the cleantech industry. They offer top notch engineering, fabrication and product development services to clients across the US. With a track record of successfully serving customers for over 30 years PPV has proven themselves to be a reliable and effective fabrication facility. www.precision-pipe.com

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One of my favorite things about working here at Precision is that we practice  Manage By Wandering Around.  (MBWA as Introduced by Peters/ Waterman in the book, In Search of Excellence)  While the authors were doing research for the book they interviewed HP President John Young who explained what the term meant and its importance to HP especially during times of explosive growth.  Reflecting back on the concept of MBWA and first learning of its meaning Peter’s writes, “MBWA … Managing By Wandering Around … quickly became our favorite “excellence” idea! Technically, it meant staying in direct touch (damn the bureaucracy!) with the folks who do the work. Metaphorically, it stood for all/much of what was wrong with American management—McKinsey & Harvard Business School-style—as we confronted the Japanese challenge in areas such as product quality. That is, “big business” had become an abstraction. It was a “by the numbers” affair, where front-line “personnel” were pretty much interchangeable parts in a well-oiled “machine” and where “strategy” was considered far more important than primitive ideas such as quality and service and turned-on folks. Of course by then the bearings had lost most of their oil and seized up!”

Ok, I know what you are thinking and you are right, we’re not a giganto conglomerate that has thousands of people working for us at multiple locations!  Yes, this is true, but what is even truer is that on a daily basis small companies must fight against losing their nimbleness, effectiveness, and..well, their human touch.  We believe in measurement and standards, but not at the expense of losing touch and becoming irrelevant.  We believe in knowing our employees, not intrusively, but in such a way that they know they are a valuable member of our team.  We believe in getting out of our offices and wandering around.

Nobody in our company does this better than our President, who regularly practices MBWA and often times finds himself in the middle of lending a hand to one of our employees.  (And on occasion our customers)  There is no substitute for MBWA; it is the lighthouse that steers the small business away from the shoreline of irrelevancy that it is headed for.  Engage in MWBA today…seriously, get up and go wander!

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Everything seemed to be going so well, when all of the sudden we find ourselves thrown under the bus by another team member!  Working on a project with a team of people from different departments, companies, or disciplines it is inevitable someone is going to be thrown under the bus.  It is almost comical to me because I have found myself under the bus many times. I have been thrown under the bus by people I brought on to the job who are protecting their own interest (AKA covering their own butt).  I have been thrown under the bus because I am nice, because I was late or not at the meeting, because I was doing too good of a job, and  I have been thrown under the bus because I was the problem.  In any event it seems inevitable that doing projects with big budgets and tight deadlines people will be thrown under the bus for all sorts of good and not so good reasons.There are some people that are particularly good at throwing co-workers under the bus.  Usually these expert “bus chuckers” are gifted at gab but lack the skill sets that would make them proficient at the task at hand.  The boss likes them because they talk a big talk, are bold in their actions, and kiss up like it’s an olympic sport and they are the reigning world champion.

I like to instill in my employees a different way of conducting business and completing projects.  What you lack in perfection you must make up for in integrity.  This means that personal responsibility must come  first and foremost over the blame game.  The hope is that when an employee makes a mistake they don’t wait for everything to unravel and for panic to ensue.  This is a paradigm that allows for mistakes and mishaps but requires everyone to throw themselves under the bus when the time comes.  This mindset allows for the “human factor” to be real in our company without the need to malign others because of an inevitable error.

This approach has the benefit to us as a company as well as for our clients.  In the world of process equipment, pressure vessels and other custom fabricated products we are always striving to improve cost competitive, time tables, a quality of goods.  While we allow for “new development” we have to also allow for a mistake because sometimes things don’t go as planned.  The errors can make for cost over runs, late delivery, re-work, and all the other complications you hate to see in a project.  Again, some would see this as an opportunity to throw their own client under the bus and try to recover some of the lost profits.  However, I see this approach as a risk reward business strategy that has given Precision Pipe great advantages over our competition in fabrication and assembly techniques. We would never pass along a cost to a client based on our own errors.  In fact once Precision paid more than 100% the cost of a tank because of our own trial and error.  Precision fronted and benefited from 100% of the error and our client was never the wiser as we still delivered in their eyes on time and on budget.

Denver Stainless Steel Welding

Exceeding expectations and standards

Calling a foul or a penalty on yourself is a humbling experience.  You can face the wrath of your customers, co-workers, management, money managers (they seem to be the least risk diverse as a constant in the universe) or even yourself.  However, if you can be transparent the dividends pay in happy customers, good products, leaner fabrication, and better schedules, and good reputation is well worth being labeled as imperfect in execution, but superior by integrity.

http://www.Precision-Pipe.com

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An interesting project has come to our shop that is leading to a new welding procedure. The project is a simple stainless steel pressure vessel, 6” diameter pipe, 0.432” wall approximately 18” long. While this seems overly simple it has led me to investigate the welding options we have qualified for stainless in our shop. We have stainless hardwire, flux core, stick, and TIG procedures but which one to use? Flux core fills very fast, hardwire is clean and neat, TIG has an artistic look when done right but is slower then hardwire and flux core. Stick welding is smoky and unless the welder is REALLY good it just doesn’t look as nice as the others. I’m beginning to think multiple processes. If we hardwire the root then no backing gas is required (meaning we don’t have to purge the inside of the vessel to remove any oxygen exposure on the back side of the weld) then we can fill the majority of the weld joint with either spray arc hardwire or flux core and finish with TIG. We get a solid, quick welded joint that looks like art! But I don’t have a weld procedure that includes three different welding processes. Do I need to break out some stainless steel scrap and weld up a coupon using the three selected processes and have it tested? Conveniently, I do not. Because I have Procedure Qualification Reports (PQR’s) for all three processes I can write a new procedure using the existing PQR’s. I can take the information from each PQR and implement a new procedure that includes all three processes. Each process must be noted on the new weld procedure and the essential variables must also be noted. One other item to be sure to review, the thickness of the additive PQR’s must yield the thickness range required for the intended joint. Maintaining documentation of all our welding processes and procedures makes this an easy accomplishment, an accomplishment that allows us to utilize our knowledge and history to go forward. If you like the way a certain welding process looks but have been told it costs too much or takes too much time, give us a call. We’ll help you find a happy medium that yields beautiful welding and cost effectiveness.

Denver Stainless Steel Welding

TIG Cover Pass

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I once had a friend that ask me how I could possibly make a living by making pressure vessels, implying there can’t be any demand for such products.  From an outsiders view he didn’t really know what a pressure vessel was or what it really did. I was amused by his comment because I knowingly realize that Pressure Vessel’s certainly lack any kind understanding by the general public, but the need, and application for pressure vessels is certainly in high demand.  I imagine most people must think this is really a quirky business but don’t really know what pressure vessels are, what they are used for, and how their application is important to our daily lives.  As long as there is a need for petroleum products, natural gas, heat, and cooling there are a network of pressure vessels that are necessary to keep our infrastructure safe and operational.  Likewise, pressure vessels are used in cosmetics, pharmaceuticals, breweries (yeah beer), food processing, water treatment, and countless other applications that enhance our daily lives. In fact, any component, piping, or tank that is designed to hold 15 psi or more is subject the guidelines and compliance of the ASME code for boilers and pressure vessels.

The American Society of Mechanical Engineers (ASME) has set the standards for pressure vessel design and manufacturing that has enabled our country’s infrastructure to become a complex and vast network.  While this is nothing short of a modern marvel it is truly remarkable how the ASME guidelines have kept workers and the public safe from the explosive high pressure gases.  In fact, the ASME standards have proven to be completely effective as long as the code is followed by everyone who has ASME certified components.

Likewise, it is scary to hear about explosions, fires, and other catastrophic events in the oil and gas industry as well as commercial boilers.  These failures almost always occur when an operator of the equipment is either too lazy to follow code or is ignorant about the effects of not following ASME guidelines.  Recently, I heard about a repair on a Government owned and operated boiler (in an ASME compliant state) that had overlooked using an ASME qualified shop for more than an decade.  This repair required an “S” stamp to perform the work, but upon inspection there had been no less than ten previous repairs performed by a non-qualified company.  This was alarming for a few reasons.  First, the state was failing to oblige by their own guidelines.  This was a public hazard and a huge liability for the State, the licensed boiler operator, and for the welder who did the repairs.  It is imperative to any repair on an ASME component (boiler, pressure vessel, heat exchanger)  that such repairs are performed by a certified welder by a qualified shop.  In other words, the company performing such repairs, at a minimum, must have a National Board “R” stamp in good standing.  Further, the repairs must be performed in compliance of the applicable code as designated by the ASME and NBIC code guidelines.  It is alarming to see States that designate compliance to code construction fail to recognize the necessary steps to keep their own equipment in compliance.

What does this mean to the average person? Not much to be truthful. However, to anyone that has process equipment it is absolutely imperative to recognize the importance code compliance has on the safety of those aruond us.

The ASME helps the global engineering community develop solutions to real world challenges. Founded in 1880 as the American Society of Mechanical Engineers, ASME is a not-for-profit professional organization that enables collaboration, knowledge sharing and skill development across all engineering disciplines, while promoting the vital role of the engineer in society. ASME codes and standards, publications, conferences, continuing education and professional development programs provide a foundation for advancing technical knowledge and a safer world.

Therefore, the next time you fire up your gas grill (you can verify your propane tank is ASME / NBIC certified) remember that countless hours of engineering, design, review, materials and code compliance, nondestructive testing, and third party inspection have gone into keeping you and your loved ones safe, even if you don’t know what a pressure vessel is.

http://www.Precision-Pipe.com

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