PT&P custom designed and built four Big Ton D Upthrust Constants(figure 1) and two pairs of Big Ton T Upthrust Constants (figure 2) for a global engineering & construction company.
These upthrust constants are installed at a Petrochemical Plant in Siberia. Due to space limitation, the Big Ton D Upthrust Constants and Big Ton T Upthrust Constants were designed for a total travel of 5″ and 4″ respectively. The Big Ton D Upthrust Constants were also designed for a load of 50,022 Ibs with a height of 26 inches. The Big Ton T Upthrust Constants with a height of 16.5″ were designed for 75,000 Ibs, and 67,464 Ibs respectively.
Does your project require constant springs? Request pricing today!
Piping Technology & Products, Inc. and its 24×7 Quick Turn/Emergency Service were put to the test on a Friday evening when they received an emergency call from a company located in Jamaica. The Jamaican company was concerned with existing pipe supports at their location and made a request for a PT&P field services representative to visit and inspect.
An experienced PT&P field services manager arrived at 8:00 p.m. on Saturday to survey and fulfill the request.
The reported problem was a pair of rusted and decayed spring hangers dating back to 1969. After inspection, PT&P’s field services manager concluded that the aged spring hangers could no longer support the piping system due to changes in the design of the system, whereas, failure resulted in additional forces being exerted onto the steam turbine.
Following identification of the measurements, load capabilities, and movements of the spring hangers, it was apparent that the system design did not compensate for the weight of two globe valves that were added to the system at a later date. Thus, PT&P’s field services manager had to take into consideration the weight of these two globe valves when sizing the replacement parts.
PT&P supplied and delivered two Type G variable spring assemblies to Jamaica on the following Monday. Type G assemblies can accommodate unusually heavy loads, and is especially adaptable for avoiding interference in spaces where headroom is limited. In this case, the spring assembly was supporting loads in excess of 2000 lbs. and movement was limited due to its location in the powerhouse.
A large refinery plant located in Pasadena, TX called upon Piping Technology & Products, Inc. to aid them in the immediate replacement of a 5400 Lbs, 7 1/2″ travel vertical constant spring hanger used to support a Coker drum.
The constant spring hanger was damaged during servicing. The reliability engineer from the refinery contacted PT&P Wednesday evening to request an inspection by a PT&P field services representative. The following morning PT&P’s field services representative arrived on-site, inspected the damaged constant spring hanger and suggested that a replacement would be most efficient and cost effective. With the existing nameplate bolted to the constant, PT&P was able to easily locate the original design of the constant.
The original design, along with the convenience of the component parts being in stock inventory, allowed PT&P to quickly manufacture a replica of the constant and ship it out on the same day by 6 p.m.
In the past, lead times for delivery of constant supports averaged 6-8 weeks, however, through the process of maintaining stock components of interchangeable parts, lead time has been drastically reduced. Piping Technology & Products, Inc. maintains a large inventory of stocked constant support assembly components that allows them to quickly assemble and ship to customers on demand, especially in emergency/quick-turn situations.
Piping Technology & Products, Inc. supplied a variety of pipeline products for the construction of a refinery plant on Jurong Island, Singapore. Jurong Island is a man-made island consisting of four petroleum refineries, 30 petrochemical firms, and many more industrial firms to support its existence.
PT&P Aids in the Creation of a "Chemical Island" in Singapore
PT&P and U.S. Bellows, Inc. first became involved in this extensive project in May 1998. During this time, PT&P supplied the international construction firm with more than 3,000 cold shoes, 400 slide plates and numerous more spring hangers, constants and fabricated pipe supports. U.S. Bellows, Inc., a wholly owned subsidiary of PT&P, also supplied many of the expansion joints used in the creation of this refinery. This includes three 36″ expansion joints were fabricated and sent to Singapore in October 1999. Two years, 300 jobs, and 670 tons of steel later, PT&P completed the last job for this project in September 2000.
PT&P Aids in the Creation of a "Chemical Island" in Singapore
PT&P has extensive experience performing product testing to ensure product quality and dependability. For this particular project a load test was performed on a 60″ diameter cold shoe. By measuring the axial and lateral loads, vertical tension and temperature, PT&P engineers are able to determine its maximum load.
Product testing was also performed on the three 36″ expansion joints provided. The bellows together with the hinge assembly were hydro-tested and a dry nitrogen test between the two plies was conducted to ensure that they would withstand the design pressure. These expansion joints were tested per ASME Sect. VIII Div. 1 Appendix 26 standards.
Specially Designed Spring Supports Ready for Shipment to Egypt
These supports are key components for the steam generators in a thermal power plant. The coils are coated with neoprene (black) to prevent corrosion while the steel plate and tie rods are painted white. Engineers of Piping Technology & Products, Inc. designed these units to support loads of 110,000 kips.
In need of specially designed pipe supports? Get pricing now!
Piping Technology & Products, Inc., in conjunction with other sponsors, has completed the first pilot test of Radio Frequency Identification (RFID) technology for the receipt and tracking of pipe supports material at construction jobsites.
The RFID tags and RFID handheld reader used by Piping Technology & Products, Inc. at the Red Hills Power Plant.
PT&P Pipe Supports in the Field
The material shown here arrived from PT&P’s manufacturing facility in Houston, Texas with an RFID tag affixed to each pipe support assembly.
PT&P Providing Training to Field Personnel
Piping Technology & Products, Inc. shipped approximately 150 pipe supports to the Red Hills Power Plant with radio frequency identification (RFID) chips affixed to each pipe supports. The RFID tags and RFID handheld reader were provided by SAT Safetrac. Field personnel were trained on the use of the new technology. The RFID-tagged pipe support assemblies were then received by field personnel. Videos of the RFID receiving process were taken for the purpose of comparative time and motion studies.
In January 2000, Piping Technology & Products, Inc., a manufacturer of high quality engineered products, designed and built two 33 1/2 inches travel and two 25 inches travel constant load spring hangers. These constant load spring hangers will be in service at a geothermal production well in Hawaii, where they will be used to support a pipe that carries hot water discharged from a geothermal production well to a separator.
The well will produce 2.8 Million gallons of water per hour at a discharge temperature of 680° F, and a pressure of 2800 psi. These custom designed constant load spring hangers provide extraordinarily large travel distance. The 33 1/2″ travel and the 25″ travel constant load spring hangers are designed to provide a constant 16,000 lbs. and 6,000 lbs support for a pipe moving a vertical distance of 33 1/2″ and 25″ respectively.
Want to learn more about constant hangers? Visit our webinar archives today!
Spring coils are so pervasive in design of pipe supports that our collective paradigm limits our ability to consider alternatives. The photograph below shows an example of a pipe support designed for the special environment of an off-shore platform which uses a stainless steel metal bellows instead of a spring coil.
Stainless Steel Bellows Used as Spring Coil
This customer was concerned about the corrosive environment and the salt water which will occasionally flow over the pipe support. The rolled plate on the left will be welded to a structural pipe on the platform. A riser clamp (not shown) will be attached on the right. The stainless steel bellows was designed with the proper spring rate and movement.
In need of a spring coil? Let us price one for you today!
An engineer with a major Houston E&C firm had concerns about the effect the temperatures in the furnace his company was designing would have on the coils in the spring supports used to support the tubing. PT&P engineers put the same question to the major suppliers of coils in the U.S.A. No one seemed to have the data to prove the coils would withstand the temperatures. The E&C firm included a requirement to test for relaxation of the coils with their purchase order to PT&P.
A random sample of coils of the size required was selected from PT&P’s inventory. The loads required to compress the coils through ten inches of travel were recorded and the coils were placed in a furnace at a controlled temperature of 176 degrees F for forty-eight hours. After the coils were cooled they were again compressed. No difference in the loads required was observed.
We did not expect any relaxation of the coils, but it was nice to have the experimental data to back our judgment.
Specially Designed 120,000 lb Load Big-Ton Spring Supports
Pictured above are Big-Ton Spring Supports specially designed by Piping Technology & Products, Inc. These types of supports are used in supporting large and heavy units such as compressors, vessels and pumps in power and petrochemical plants. The ones below were used to support vessels in excess of 120,000 pounds. The Big-Ton Spring Support are designed to allow limited movement in confined areas. By doing this, it saves the customer from having to entirely redesign the piping system and saves thousands of dollars.
Do you need a big ton for one of your upcoming projects. Let us price one for you today!
We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept”, you consent to the use of ALL the cookies.
This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
Cookie
Duration
Description
cookielawinfo-checkbox-analytics
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional
11 months
The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy
11 months
The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
