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Variable Spring Hangers for an Upstream and Valve Project in Thailand
April 30, 2024

Variable Spring Hangers Designed For An Upstream And Valve Project In Thailand

PT&P designed and manufactured these variable spring hanger assemblies for a Flue Gas Cooler and SCR system in Thailand. The SCR system utilizes urea to reduce NOx levels. These variable spring hanger assemblies incorporate the use of three-bolt pipe clamps (fitted with metric bolting for this overseas order) ranging in sizes from 6″ to 12″ diameter with elevation differences ranging from 68-½” to 138-1⁄2″ from the pipe rack structure steel member to the center of the pipe. The B-Type spring hanger assembly uses coil springs to support the load and allow for vertical movement. They are furnished with one lug welded to the top of the spring’s transition plate. The transition plate can be designed for different connection arrangements utilizing 2 lugs or a threaded connection. All forty-seven variable spring supports were quality-checked with a 100% spring coil deflection test utilizing a load cell to also set the assemblies at the prescribed installed load. These spring hanger assemblies were packaged for export shipment at our facility.

Variable supports are typically used for the following considerations in piping systems:

  • Compensating for Thermal Expansion
  • Maintaining Stress and Load
  • Installation in Piping Systems
  • Maintenance
  • Supporting Heavy Loads

Variable spring cans play a crucial role in maintaining the integrity and stability of piping systems by compensating for thermal expansion or contraction, supporting heavy loads, and allowing for vertical movement. They are essential components in industries such as petrochemical, power generation, semiconductor, refining, paper and pulp processing, and other applications where large-scale piping systems are employed.

Variable spring cans come in a variety of designs and are constructed using different materials to suit specific applications and environmental conditions. Materials commonly used for variable spring cans include carbon steel, stainless steel, and special alloys. The selection of materials is crucial to ensure that the device can withstand the corrosive effects of certain fluids or harsh environmental conditions.

Variable spring supports, along with our array of engineered support solutions, stand as a fundamental pillar of our business. They enable us to actively collaborate with our clients, whether it involves the products we’ve manufactured, systems subjected to pipe stress and Finite Element Analysis (FEA), or items serviced through the expertise of our field service team.

PT&P REF. ORIGINAL POST 02232016

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Sway Braces Designed for a Mechanical Equipment Supplier
April 23, 2024

Sway Braces Custom Designed For A Mechanical Equipment Supplier

Type: Fig. 555 Sway Braces
Size: 34-7/8” to 42-1/4″
Material: A36 carbon steel | Hot-dipped Galvanized
Design: 17,827 lb. Ld. | 12″ Travel | 7,200 lb. Spring Rate

PT&P custom designed Fig. 555 sway braces for the mechanical equipment supplier in Canada sound robust and tailored to specific requirements. Here’s a breakdown of the specifications:

  • Material: Carbon steel, hot-dipped galvanized. This ensures corrosion resistance and durability, especially important for industrial applications where the environment can be harsh.
  • Length Range: The sway braces vary in length from 34-7/8″ to 42-1/4″. This indicates flexibility in design to accommodate different distances between anchor points or points of attachment.
  • Operating Load Range: Largest Sway Brace: Designed for an operating load of 17,827 lb. This suggests it’s meant for heavier-duty applications where substantial loads need to be supported.
  • Smallest Sway Brace: Designed for an operating load of 200 lb. This indicates versatility in design, catering to lighter loads as well.
  • Design Travel: Largest Sway Brace: Designed with a design travel of 12″ in either compression or extension. This accounts for significant movement allowance, essential for accommodating thermal expansion or contraction in the piping system.
  • Smallest Sway Brace: Designed with a design travel of 9″ in either compression or extension. Though smaller, it still allows for adequate movement within the system.
  • Spring Rate: Largest Sway Brace: With a spring rate of 7,200 lb. per inch, it demonstrates a higher stiffness, suitable for handling heavier loads while still providing the necessary flexibility.
  • Smallest Sway Brace: With a spring rate of 1,800 lb. per inch, it offers a lower stiffness, ensuring smoother movement and accommodation of lighter loads.

These specifications indicate a thoughtful design process, considering factors such as load capacity, movement requirements, and environmental conditions. It’s a testament to PT&P’s expertise in providing tailored solutions for piping system needs.

It makes perfect sense that these sway braces require custom design and fabrication from PT&P due to their unique specifications exceeding standard parameters. By configuring each sway brace with a tailored combination of materials, spring coils, housings, and internal components, PT&P ensured that they could effectively handle the non-standard loads and movements specified for the project.

Customization is crucial in engineering projects, especially when dealing with varying environmental conditions, load requirements, and system configurations. By creating bespoke solutions, PT&P demonstrates their commitment to meeting the precise needs of their clients, ensuring optimal performance and reliability in the field.

This level of customization also highlights PT&P’s expertise and flexibility in adapting their products to meet specific project requirements, further solidifying our reputation as a trusted provider of engineered pipe support solutions.

PT&P REF. ORIGINAL POST 05152018

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Constant Spring Support Assemblies Designed for a Chemical Plant in New Jersey
April 16, 2024

Constant Spring Support Assemblies Designed For A Chemical Plant In New Jersey

Type: Constant Spring Supports
Size: PTP 200 C-Type Double Suspension
Material: Hot-dipped Galvanized Carbon Steel | Epoxy Coated Springs
Load: 8,000 lb. – 19,000 lb. | Upward Movement: 6″ – 9″
Testing: Standard Load and Travel Test

PT&P designed twelve constant spring support assemblies for a chemical plant in New Jersey. The assemblies will be used as replacements in a recuperator "up-leg" and "down-leg" application in conjunction with custom cross-over supports previously fabricated by PT&P. Physical sizes of these constant assemblies range from 18-1/2" x 22" x 64" to 18-1/2" x 26" x 83". Operating loads range between 8,000 lb. – 19,000 lb. and each allows for upward movement between 6" – 9". The spring coils are coated with epoxy instead of the standard neoprene coating. Standard load and travel tests were completed prior to shipment.

Constant spring supports find applications in various fields and can be made from diverse materials tailored to specific end applications. These supports are integral in industries such as petrochemicals, LNG, refining, power generation, steel mills, and geothermal plants, among others. In the past, obtaining a custom-designed constant spring support posed a significant challenge in terms of both design and manufacturing, with lead times extending to a minimum of 6-8 weeks.

Through a dedicated focus on manufacturing optimization and employing a design-centric engineering approach, we have successfully reduced the required manufacturing time by more than half. Now, the process of acquiring custom constant spring supports is significantly streamlined. In fact, we are capable of fulfilling emergency orders in less than 24 hours, taking into account the client’s location and urgent requirements.

PT&P REF. ORIGINAL POST 01232017

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14” Diameter Pipe Shoe Assemblies for a Refining Project in Saudi Arabia
April 2, 2024

14” Diameter Pipe Clamp Assemblies Designed And Manufactured By Pt&Amp;P For A Refining Project In Saudi Arabia

Piping Technologies & Products fabricated these special designed Split-T pipe shoes using a Figure 50 “two-bolt pipe clamp” with added gusset plates welded beneath the clamps for a refining project in Saudi Arabia. The gusset plates are added to increase the vertical load-carrying capacity. The pipe shoes are 4″ height x 15.5″ wide x 18″ long and were fabricated from A36 carbon steel with a hot-dipped galvanized finish. They are designed for a pipe size of 14″ with an operating temperature from -29°C to 316°C. The pipe shoes are capable of supporting an operating load of 34,000 lb.

 

We provide such products in a “clamp-on-shoe” configuration to meet the needs of client applications where welding the pipe shoe onto the process line is prohibited. Depending on the client’s specifications, we can design and manufacture these shoes without a finish (black) or various painted finishes in place of hot-dipped galvanizing to expedite the delivery of the order. We can manufacture these clamp-on-pipe shoes with different metallurgies, such as 304 or 316 stainless steel, to accommodate high temperatures or cryogenic applications depending on the project’s needs. This basic pipe support is used in industries ranging from automotive, petrochemical, LNG, and refining in almost every major processing unit to maintain pipe elevations and handle loads imposed by media movement.

PT&P REF. ORIGINAL POST 07112016

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