A36 for flanges and plates, A 106 for pipe, and for stud/nuts A193 B7
Material:
Carbon Steel
Testing:
Visual & Q.C. Tests
PT&P custom designed these Pipe Spools for a plant in Texas. pipe spools are relatively short assembly, consisting of a pre-determined length of pipe welded to a specified fitting (tee, elbow or reducer) or valve (gate or ball), with flanges typically welded at each end of the pipe. The materials used are carbon steel A36 for flanges and plates, A 106 for pipe, and for stud/nuts A193 B7. This order contained 2 pipe spools, ring retainer, pad eyes, & mount supports. Operating loads were 2200 lb. with standard shipping.
PT&P custom designed these personnel protection shields for a power plant in Wyoming. The personnel protection shields are used when insulating the line is not necessary, but operating temperatures require safeguarding personnel from coming into contact with the pipe. These shields are designed for an 8” diameter pipe operating at 1050°F. They are fabricated from carbon steel and range in lengths up to 36”.
Bellmouth Reducers, Ring Flanges, Pipe Spool Elbows
Size:
36” NPS | Opened to 48″ NPS
Material:
Carbon Steel | 304 Stainless Steel
Design:
150°F | 150 PSI Operating Pressure
PT&P designed and manufactured bellmouth reducers, ring flanges and custom pipe spool elbows for an Ammonia Plant in Texas. Bellmouth reducers are a single piece component used to transition a large outside diameter into a smaller outside diameter piping. These reducers are used in the cooling process; the shape allows for drawing in maximum amounts of air while preventing loss. The bellmouths are fabricated from carbon steel and 304 stainless steel. They are designed for operating temperatures of 150°F with an operating pressure of 150 PSI. Dimensions are 36” NPS opened to 48” bellmouth. Tests that were performed are spot x-ray, visual and dimensional, PMI-alloys and stainless steel.
Operating Temperature: 221°F
Operating Pressure of 117, up to 205 PSI
PT&P ‘s Sweco Fab division custom designed and manufactured pig launchers and receivers for a chemical plant in Saudi Arabia. A pig launcher is a pressurized container used to shoot a cleaning device (called a “pig”) through the pipeline to perform a variety of functions including cleaning, monitoring, and maintenance of the pipe. They are fabricated from stainless steel 316 L, SA 106-B, and SA -105. Dimensions for these pig launchers and receivers are 4”, 6”, 8”, 10”, 14” diameter and range from 72” to 98” long. They are mounted on 48” tall stands. They are designed for an operating temperature of 221°F with an operating pressure of 117, up to 205 PSI.
PT&P supplied 41 custom manifolds with globe and gate valves to a manufacturing complex in La Porte, Texas. The manifolds were installed in a hot water tracing supply and return system at a high-density polyethylene (HDPE) facility. Each manifold was welded to the exact specifications listed on the production drawing developed. The body was fabricated from 2” and 1” seamless XS pipe. The ports were FNPT and flange connection for field installation. All Manifolds were supplied with welded brackets and vertical support stands. The material used for the valves and flanges were SA-105, pipe SA -106B, and the supports are manufactured from SA-36. The overall height is 72″, and the dimensions are 1″ branches x 1-1/2″ run line and 1″ branches x 2″ run line. Inspection and Q.C. tests were performed by an internal and TPI team including 100 % dimensional inspection, NDE(RT,PT), hardness, and hydro-test at 430 PSIG.
Need a standard product quickly? Or know what you need and don’t need a quote? Pick it up on Amazon and skip the communication…
*If you need assistance, we are always available 24×7 via our emergency service or just send an email to [email protected]. You can also chat with us during business hours via the chat button on the lower-left of the screen.
PT&P supplied “on-time delivery” of two industrial structural steel pipe racks and the accompanying pipe spools that would be attached to storage tanks measuring approximately 120 ft. in diameter and over 85 ft. tall. Pre-Engineered Pipe Racks attached to storage tanks are used in a wide range of industries from Waste Water Treatments plants, Community Water Storage Tanks, to Above Ground Storage Tanks used in Refineries, Natural Gas, and Petrochemical plants.
PT&P leveraged its breadth of manufacturing and engineering capabilities to reduce costs for its client in the deployment of this Pipe Rack. Our focus was to complete as much work as possible in our production facility, where costs are typically far lower than in the field. We made adjustments to the design to aid in-field deployment to minimize total overall costs. This project also leveraged our capabilities with structural steel, pipe spools, TPI, and insulation. We have all of these capabilities in-house, which made it easy to fabricate the complex structures in this project.
Each pipe rack had an overall dimension of 12 ft. wide and 113 ft. tall and was fabricated from carbon steel. Due to the overall length, each frame was shop fabricated in two sections in order to transport each to the job site. Additionally, each frame was provided with lifting lugs designed by PT&P to facilitate both, the transporting of each frame half-section and the subsequent vertical lift of each completed unit. Each pipe rack was fitted with 9 pipe spools ranging in diameter from 2″ to 12″ (6 were insulated pipe spools, 3 non-insulated pipe spools). The pipe material used to fabricate the pipe spools were SA-53, SA-106, and SA-333.
Six of the pipe spools were supplied pre-insulated. At the ends of each section of pipe spool, there were bare sections of pipe where PT&P Field Service would later perform “tie-in welds” in the field.
After completing shop fabrication, the pipe racks were prepared to be transported to the job site location for final assembly before installation by PT&P Field Services. This consisted of bolting the two halves of the pipe rack together and completing the “tie-in welds” at each pipe spool connection. All of the “tie-in welds” were examined and verified by X-ray analysis. After completion of all the “tie-in welds”, PT&P Insulation Department installed insulation in the field on the 6 pipe spools requiring insulation at these connection points.
Rigid Rod Hangers
Each section of pipe spool was supported from the top of the rack by a rigid rod hanger also supplied by PT&P. Rod hanger assemblies are round steel bars normally threaded used to connect other components, such as pipe support hardware, to make a pipe hanger assembly. PT&P’s field service team installed the main pipe rack with seven pipe spools each over 86 ft. long on large storage tanks. The pipe spools were positioned on the pipe rack steel using special U-bolts to “guide” the piping.
U-bolts are u-shaped rods with threaded ends, that fit around a pipe and are attached to a supporting member. These U-bolts were coated in plastic to prevent corrosion between the pipe and U-bolt material. Additionally, Thermal Plastic Isolators (TPI) was also used to prevent corrosion between the pipe rack steel and the pipe spools. TPI can be customized in height, width, length of TPI, hole sizes, hole locations, and special shapes.
U-Bolt with TPIFRP Wear Pads
Also installed on the Insulated pipe spools were FRP wear pads that rested on the thermoplastic Isolator. FRP is also known as non-metallic wear pads, which are used for corrosion protection for uninsulated piping systems to extend the life of the pipe.
After assembly by PT&P Field Service, each complete unit was lifted vertically into position and bolted to the storage tank at the “tank connection points.” This demonstrates our ability to provide rare expertise in all facets of project management including planning, engineering design, logistics, and job site management.
We have a fully diversified operation that is customizable based on your unique needs. If you just need stock supports and standard items, we can provide them very quickly. Our engineering team can help find the best support(s) for your application. Or our field service team can inspect your pipeline conditions and recommend the best solutions. Our team also regularly completes installations and conducts on-site project management. We are your one-stop-shop for pipe supports, insulated supports, expansion joints, vibration solutions, pipe stress analysis, and more.
Pipe Shields, Inc., a division of PT&P designed pre-insulated pipe supports for a high-temperature pipeline at a petrochemical plant overseas. This style of insulated support is designed to be compact, easy to install and eliminate the need for field welding. The insulation is 5-1/2″ thick utilizing 18 lb. and 28 lb. pcf high-density calcium silicate. The “hot shoes” are fabricated from carbon steel and hot-dipped galvanized for corrosion protection. They are rated for temperatures from +40°F to +1800°F. Q.C. inspections and dimensional tests were performed before an expedited shipment.
Such insulated supports are used for chilled water, hot water, and steam line applications in industries ranging from pharmaceutical, semiconductor, paper mills, chemical plants, data centers, biofuels, and food processing to name a few. Piping Technology and Products, through its subsidiary, industry leader, and pioneer, Pipe Shields, has supplied to all these markets in the USA and internationally for over 45 years. Most recently, we made a large investment to automate manufacturing in our Houston plant to increase throughput and yield to support our customers’ needs for just-in-time deliveries reducing cash requirements on projects.
According to ASME B31.1 Chapter VII Par. 140 a program shall be established for the assessment and documentation of the condition of all CPS (Covered Piping Systems) in power plants.
CPS Systems are defined in Chapter 1 Par 100.2, as systems on which condition assessments are to be conducted. This includes the following systems as a minimum.
NPS 4 and larger main steam, hot reheat steam, cold reheat steam, and boiler feedwater piping.
NPS 4 and larger systems that operate above 750°E (400°C or above 1,025 psi (7,100 kPa)
Other systems may be included as CPS by an Operating Company, based on their judgment. Appendix V of the code is titled ‘Recommended Practice for Operation, Maintenance, and Modification of Power Piping Systems’. This addendum is non-mandatory; however many Power Industry operating companies’ insurance carriers are now invoking Appendix V with increasing frequency, and this is affecting the conditions of their agreements with the operating companies.
Piping Technology and Products Inc. (PT&P) has for some time been performing surveys and assessments in accordance with part H of Par. 140, which requires hot and cold walk-down readings and assessment of pipe supports, operated within the creep regime of the pipe. These assessments are helpful in identifying, sagging lines, deformation of supports, and damage caused by upset conditions, and/or incidents, attributable to operational malfunctions, dynamic/thermal or hydraulic events.
PT&P has been performing this service for many power generation companies. Preparation of documentation, retrieval, and compilation of files for a CPS assessment, has just been completed for a major U.S power generation company. Ten large power plants were involved, and the original predominantly high-energy pipe support drawings, all engineered and designed by PT&P, were retrieved from PT&P archives dating back ten years.
We will be happy to answer any of your technical questions about our survey capabilities, as well as any other engineering or field services that your organization may need.
This project also leveraged our capabilities with structural steel, pipe spools, TPI, and insulation. We have all of these capabilities in-house, which made it easy to fabricate the complex structures in this project.
