Piping Technology & Products, Inc. specially designed and fabricated ten sway braces, with total travel distance of 14, for a petroleum company in Louisiana.
The standard PT&P braces have springs that allow 3 of total travel distance. These sway braces were custom designed to provide total travel distance of 5 and 14. The center-to-center dimensions ranged from 92¼” to 115″ with internal supports to prevent buckling. The desired spring rates for the sway braces were 450 lb./in. and 1350 lb./in. The custom sway brace assemblies comprised of pipes (for spring housing), springs (sizes dependent on spring rate and total travel) and in some cases, ball joints.
Do you need sway braces for an upcoming project? Request a price quote today!
Pipe Shoes For 14" Pipe At A LNG Plant
Piping Technology & Products, Inc. fabricated cryogenic pipe supports designed for a 14-inch pipe at a LNG plant in Algeria. The pipe operates below minus 50 degrees F, therefore the pipe supports were fabricated from three different materials in order to accommodate the low temperatures. The upper part, which clamps on to the pipe, was fabricated from a stainless steel plate that retains its strength at low temperatures. The middle section is a laminated phenolic block made from layers of wood impregnated under vacuum with a synthetic resin. A crossed orientation of the hard wood fibers is used to provide extra strength. The laminated phenolic block, which is a poor conductor of heat, was bolted to the bottom plate of the galvanized carbon steel.
Are you in need of some cryogenic pipe supports for an upcoming project? Get pricing today!
Big Ton Springs With Loads Up To 450,600 Newtons
Piping Technology & Products, Inc. specially designed and fabricated Big Ton Variable Springs for a chemical project in Canada. The supporting beams are 30″ in length with PTFE, 25% glass filled stainless steel slide plates. The Big Ton Springs were designed with six coil springs with external guides to prevent horizontal twisting and internal guides to withstand horizontal friction forces. These units were also designed for operating loads from 260,000 to 350,000 Newtons and hydro-test loads from 300,000 to 450,600 Newtons. A total of six units were painted with a special finish specified by the client.
Need a big ton? Get pricing today!
1,728 Rods & Clevises
Piping Technology & Products, Inc. custom designed and fabricated 1,728 rods and clevises for a heat recovery steam generation plant. The rods and clevises will be utilized to support various pipe loads throughout the piping system.
Learn more about rods and clevises by visiting our webinar archives!
Type F Variable Springs With Specially Made Locking Devices
Piping Technology & Products, Inc. specially designed twelve Type-F variable spring hangers (4-160-F, 8-170-F, 8-180-F) for an oil refinery in Indiana. These variable spring hangers were custom designed to support a Hydro-Test load 4.5 to 5 times the design load, which ranged from 7,988 lb. to 13,075 lb. The spring rates of the variable spring hangers ranged from 500 lb./in. to 750 lb./in. with travels of 1.15″ to 2.82″, upward movement respectively. The locking devices for these springs were manufactured using basic materials (rods, hex nuts and heavy pipe wall) and a special pressure plate to accommodate the application design criteria requested by the client. The base plate designed for these F- Type cans were modified to accommodate the locking devices.
Learn more about variable springs by visiting our webinar archives!
U-Type and F-Type Constant Spring Supports
Piping Technology & Products, Inc. designed, manufactured and delivered a total of 8 constants to a power plant in Mexico. The designs consisted of 4 Horizontal U-Types Upthrust (Figure 1) and 4 Vertical F-Types (Figure 2) that are to support 24-inch diameter pipes. Each consisted of different sizes. The constants are designed for loads of 2,839 lbs. to 8,963 lbs., for Total Travels ranging from 7 to 3 inches. Constants were painted CZ-11 per customer request.
Learn more about constant springs by visiting our webinar archives!
40" Diameter, Alloy Yoke Clamp
PT&P specially designed and manufactured a heavy duty, 40-inch diameter, alloy yoke clamp (cut from a 6″ thick plate) for a Power Plant in Mississippi. The clamp was designed for a 70,000 lb load and is to support a 40″ diameter, high pressure main steam line. The u-bolt was made of a 3″ diameter bar. In order to prove the design of this clamp, Finite Element Analysis was used to simulate the loads and stresses that it may experience in the field. The model shows the stresses at every point by a color coding system.
Want to learn more about yoke clamps and other types of clamps? Visit our webinar archives today!
Custom Pipe Supports and Constants Assemblies For An Oil Refinery In Mexico
Piping Technology and Products designed and built 24 custom pipe support assemblies to meet the unusual needs of an oil refinery in Mexico. The pipe hanger assemblies each consisted of a 200 E-type constant spring support and a cradle assembly. The constants are designed for loads of 9856 lb. to 13,288 lb., and for total travels ranging from 3.5″ to 5.5″. Operational conditions dictated that the constant springs have settings for emergency and start-up, in additional to the standard settings of cold for shipping, and hot for normal operations.
The cradle assemblies attached to the constants are to support pipes with operational temperatures of 1070°F to 1100°F. Thus while the constants could be made of A-36 steel, the assemblies could not. The pipe saddle itself was made by splitting a section of A387-11 chrome alloy pipe. The other support components were all made of 304 stainless steel. This includes a 1-3/4″ Eye Rod, two 27″ I.D. U-bolts, and two 33″ lengths of 3″ diameter SCH. 80 pipe.
Do you need custom pipe supports for an upcoming project? Get pricing today!
Cryogenic Pipe Anchors For A Gas Refinery
Piping Technology & Products, Inc. manufactured cryogenic pipe anchors for gas refinery in Savannah, Georgia. The pipe anchors were fabricated with stainless steel and insulated with polyurethane foam. In order to prevent cold pumping, better known as temperature driven moisture penetration, polyurethane foam was poured around a stainless steel reinforcing pad. The ten cryogenic pipe anchors were fabricated to support 4-inch, 8-inch and 12-inch pipes. PT&P’s pre-insulated pipe supports department is devoted to the production of pipe insulation productions for both hot and cold applications.
Want more information on cryogenic pipe anchors? Visit our webinar archives today!
68" In Height Vertical Upthrust Constants
Piping Technology & Products, Inc. designed and built two, 68″ in height 100 U-Type constants for a power plant in Mexico. The vertical upthrust constants were designed to support 48,500 lb. each with a total upward travel of 3″. In order to prevent buckling of the constant housing, each constant was designed with five C7 x 14 3/4 lb. channels and a base plate of 26 3/8″ x 33 1/4″. These unique 100 U-Type upthrust constants were custom designed by PT&P to accommodate limited horizontal space requirement. The constants will be placed opposite to each other on a beam capable of supporting 99,000 lb. load of the pipe, plus the weight of the constants.
Want to learn more about constants? Visit out webinar archives today!
High Strength Stainless Steel Pipe Guides
Piping Technology & Products, Inc. manufactured over 2,000 high-strength, stainless steel pipe guides for a liquefied natural gas facility in Trinidad.
This high strength insulation is rare and mainly used for cryogenic applications. The guides range in a variety of sizes including 4-inch to 36-inch NPS and the fabrication included carbon steel base plates and stainless steel plates, nuts and bolts.
Looking for pipe guides? Get pricing today!
108" I.D. x 144" T-T Vessel
Sweco Fab, Inc., the ASME code fabrication shop for Piping Technology & Products, Inc., specially designed and fabricated a 108″ I.D. x 144″ T-T vessel for the Texas A&M University. The “Aggie Vessel” will be used for special research project at the university. A 24″ T-bolt closure was used for access to the vessel and two stiffner rings were installed to withstand vacuum application. Unique internal design was also applied to facilitate special equipment installation. Helium leak test at 1×10-6 cc/sec will be performed to detect leakage.
Are you in need of a vesssel? Request a quote today!
August 2001 News
Breaking News: NEW pipingtech.com
On August 06, 2001, PT&P launched its new website. pipingtech.com now has a new design and structure. We hope you will find it simpler and more intuitive to find what you are searching for. Browse through its many pages and explore the new features that we have added:
Menu bar with mouse over features. Allows you to view the different categories under that section before you click on it.
In the news side menu bar- Allows you to view and select PT&P’s current press releases
A new products section that is categorized by type of product.
Product testing section – Describes the type of testing we do, the procedure and its purpose
Highlights section – Highlights upcoming events, stories, additions, etc.
Emergency/Quick Turn Request Form
Easily accessible catalog request form
48" Diameter x 96" S/S Vertical Carbon Steel Filter Vessels
Sweco Fab, the ASME fabrication shop of Piping Technology & Products, Inc., specially designed and manufactured three steel, rubber-lined vessels for a MTBE manufacturer located in Deer Park, TX.
The carbon steel filter vessels were designed with rubber linings in order to help prevent or delay corrosion within. The vessels are 48″ diameter x 96″ s/s vertical and built to ASME. All vessels underwent hydrostatic testing in order to detect leaks (see Figure 2).
Need a vessel for an upcoming project? Get pricing today!
60,000 Lb. Load Type "B" Variable Spring Hangers
PT&P specially designed two Type “B” variable spring hangers (2-250-B) for an oil company in Ryazan, Russia. These variable spring hangers were custom designed to support a load of 60,000 lbs. with a spring rate of 3,648 lbs./in. respectively. Due to loading requirements, these variable spring hangers were also designed to accommodate a travel of 1″, upward movement.
Are variable spring hangers a necessity for your next project? Get pricing now!
June 2001 News: Issue 2
Take advantage of our currently open shop space!
PT&P and its wholly owned subsidiaries US Bellows and Sweco Fab are manufacturers of a variety of high quality engineered products. We’re open, 24/7, to meet all your quick-turn/ emergency needs! PT&P and its wholly owned subsidiaries US Bellows and Sweco Fab are manufacturers of a variety of high quality engineered products.
PT&P has a system of stock inventory that allows us to quickly assemble and ship products such as:
*Engineered Spring Supports
*Support Assembly Components
*Fabricated Pipe Shoes and Anchors
*Slide Plates and more!
June 2001 News: Issue 1
PT&P Verifies New Designs for LNG Phenolic Base Support with Load Testing
Piping Technology & Products, Inc. performs thorough product testing to verify new designs to a LNG Laminated Phenolic base support for an E&C company located in Houston, Texas. In order to determine the failure loads for a 30″ diameter, pre-insulated shoes and a 6″ diameter Laminated Phenolic base support respectively, PT&P performed lateral-load and axial load tests. The load tests performed ensure the pre-insulated pipe shoes can safely sustain the specified design load. The insulated shoes tested for the E&C company will be in service in 2001 at Atlantic LNG, where they will be used to support the liquid nitrogen gas (LNG) lines.
Big Ton Springs Installation Guide 1. Measure the existing installed load setting height to make sure that the big ton spring will fit tightly into the space provided. Shim from below as needed to ensure proper fit.
2. Place the big ton spring in the designated location, making sure that all required slide plates, shims, or auxiliary steel are in their proper positions.
3. Travel stop bolts can be released after all testing has been done. The travel stops are painted red and located on each end of the big ton spring. Follow the steps below to release the travel bolt stops. Please refer to the drawings to the left.
(a) Turn the nut on travel stop bolt No. 1 one-half turn; repeat on bolts 2 through 4.
(b) Repeat in this sequential order until the load is released. The load has now been transferred to whatever the big ton spring is supporting.
4. CAUTION: Be sure that the nuts on the travel stop bolts are backed off enough to accommodate the appropriate travel (Example: 1 inch of travel – the nuts should be backed off by 2 inches from the bottom of the travel stop plate.)
5. At this time the Lifting Eye Bolts may be removed.
In some cases, a straight line system of axial bellows anchors and guides is not practical or desired; or there is no reasonable way/ place to anchor the bellows thrust loads. In such cases self restrained bellows assemblies may be used, such as the double hinge restrained bellows shown below. Thermal expansion (or contraction) in the long pipe is absorbed by an offset deflection of the double hinge assembly. Bellows thrust load is carried by hinge bars, gimbals, tie rods or other such devices; hence normal tension is maintained in the pipe system and main anchors and full lateral restraint guides are unnecessary.
Big-Ton D and Big-Ton T Upthrust Constants
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!
Emergency Field Service Request on Constant
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.
16’ Dia. x 20’ Carbon Steel Storage Tank
Dual cranes are required to lift the pictured 16’ x 20’ Carbon Steel Storage Tank to a flatbed eighteen-wheeler for transportation to the paint yard.Upon completion of painting and lining it will be shipped to a major producer of caustic soda in Corpus Christi, South Texas Area.
This is one of many (similar type) tanks and pressure vessels supplied for a recent plant expansion.
Learn more about tanks and vessels from our webinar archives.