Comparison of ISO 14692 and ASME NM.2 for GRP Piping Systems
Table of Contents A Good GRP Code Covers a Large Variety of Products and Loading Conditions A robust Glass Reinforced Plastic (GRP) piping code must
4 August 2025
Table of Contents A Good GRP Code Covers a Large Variety of Products and Loading Conditions A robust Glass Reinforced Plastic (GRP) piping code must
Thermal bowing is a structural phenomenon that arises when a temperature gradient exists across the cross-section of a pipe or vessel. In typical pipe design,
Table of Contents As the demand for flexible, energy-efficient, and reliable compressor operation grows—particularly in hydrogen and process gas applications—our clients increasingly turn to stepless
Table of Contents Multiphase flow is a recurring challenge in process engineering, where multiple fluid phases—such as gases, liquids, or solids—interact within a single flow
In the chemical and energy industries, liquid products such as LNG, ammonia, or naphtha are commonly transferred between ships and onshore storage tanks. These transfers
In the engineering domain, accurately simulating transient events in pipeline systems is critical, particularly for essential safety mechanisms such as firewater systems. These systems, typically
Introduction Pressure vessels are critical components in a wide range of industries, including power generation, petrochemical processing, and industrial manufacturing. These vessels are designed to
When Theodor von Kármán first discovered vortex shedding in 1911, he likely had no idea how pivotal his work would become for modern engineering, particularly
In a previous article, we introduced the risks and design considerations of repurposing an existing natural gas compressor system for hydrogen. That discussion focused on
ON-DEMAND 🕖 30 MIN 🌏︎ ENGLISH Understanding and Mitigating AIV and FIV in Modern Plant Design David Tickner Senior Engineer Get instant access
ON-DEMAND 🕖 30 MIN 🌏︎ ENGLISH How To Predict Stresses From Slug Flows Daniëlle de Jong Senior Engineer Get instant access Free recording
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Building models using the import PCF file feature & model verification In BOSfluids Thijs Krijger Project Engineer
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Solving Vibrations In A Two-Phase Process Line Frank Bos Partner Get instant access Free. Recording + slide
ON-DEMAND 🕖 50 MIN 🌏︎ ENGLISH Surge and dynamic stress analysis for an offshore wind farm using BOSfluids Mark Groen Software Lead Engineer
ON-DEMAND 🕖 25 MIN 🌏︎ ESPAÑOL Integración de BOSfluids con Caesar II y otros programas de tensión de tuberías Uri Peker Engineer Get instant
ON-DEMAND 🕖 35 MIN 🌏︎ ENGLISH BOSfluids integration with CAESAR II and other pipe stress programs Ryan Metcalf Manager USA Get instant access
At a refinery, a branch connection designated W31056, the 2″ line that ties in to the high-pressure steam attemperator J-3103 (a desuperheater), failed in service. A similar failure had occurred about twenty years earlier, in 1992. On-site observations report periodic movement of the connecting header, line 6″-S31022, which contains the
A refinery operator is replacing two existing steel main cooling water headers with Glass Reinforced Epoxy (GRE) piping. The two changes were raised as Technical Change Requests, and this case study covers the second of them, the “lube” cooling water header. The GRE consists of a header and a branch
A wash oil line was vibrating in the vertical section downstream of its angle control valve. It has been reported that the vibration amplitude increases with increasing flow, and in the future the mass flow rate may still be increased further. No vibration measurements had been carried out, so the
Undesirable vibrations were observed in the wash oil line between two vessels during activation of the wash oil flow, most severe in the vertical section immediately downstream of the angle control valve. An earlier study had already identified slug flow as the most probable cause and proposed mitigation measures, and
The 10″ inlet and outlet lines of furnace H301 carry two-phase content during all process conditions. Under certain process conditions, staff reported feeling like getting seasick when standing on the platform of the furnace, and the piping was seen vibrating mainly near the furnace. The impact of these dynamic effects
A flue-gas overhead line runs from a third stage separator to a waste heat boiler. It carries gas at a maximum operating temperature of 740 °C upstream of the orifice chamber and is designed for 755 °C in the hot-walled sections. At those temperatures the hot-wall material, stainless steel A240
Two existing steel cooling water headers were to be replaced with Glass Reinforced Epoxy (GRE) piping under two Technical Change Requests. This case study covers the first request, for the main cooling water header “boiler”. The second, covers the “lube” header. A flexibility analysis was required, together with recommendations, to
An 8-inch line carrying two-phase content from a heat exchanger to a gasoil stripper at a refinery had been vibrating for years, mainly in the two shorter horizontal sections, one downstream of the heat exchanger and one just upstream of the stripper. The operator had reported vibration for 5 to
A line in the creep range, where the weight loads set the support design The line studied here is the revised fluegas overhead line between the third stage separator and the superheater. It operates at 725 °C in the hot walled sections and 200 °C in the cold walled section,
A coil anchored at both ends, with the cross-over overloaded In a refinery furnace, the radiant coil carries crude. Under a project designated high TAN, the existing carbon steel radiant coil piping is to be replaced by stainless steel, grade A312 TP316Ti. This account presents the stress analysis of the
Lines assessed 4 Pipe content Two-phase gas-liquid flow, all process conditions Flow regime, start-up Slug flow Flow regime, normal operation Annular flow Pipe material A 358 type 321, main material Design temperature 400 °C Design pressure 77.5 bar, Lines 1 and 3; 81.0 bar, Lines 2 and 4 Liquid slug
Line temperature 700 °C Design temperature 755 °C Design pressure 4.2 barg Pipe material A 312 type 304H Allowable stresses ASME B31.3 Appendix A Expansion loop 4 inch, 6,000 mm deep Creep-range service on the catalyst withdrawal line A waste catalyst line runs from the regenerator to the waste catalyst
Recently, fatigue cracks were discovered in the first-stage discharge line’s small-bore instrumentation branches of a hydrogen compressor. Initial investigations pointed to excessive out-of-plane vibrations as the primary driver of these failures. While the system was originally installed in 1995 with a pulsation study, and further axial supporting was added in
In industrial effluent systems, piping integrity is often threatened by the geotechnical behavior of the surrounding soil. This case study examines the peer review of a stress analysis for effluent pipelines situated between valve chambers. The primary challenge identified is differential settlement, where unpiled concrete pit walls shift relative to
Introduction This case study presents the finite element analysis (FEA) and verification process conducted for the pressure-containing parts of the F35-340 actuator, developed by Actuator Technology Company. The primary goal was to demonstrate the structural integrity of the actuator under specified operating conditions and to ensure compliance with the requirements
This case study presents the fatigue assessment of the 28L oil separator (Atlas part number 1625481501), performed to verify the vessel’s durability under cyclical internal pressure in accordance with the AD2000 S2 standard. The separator is subject to a cyclic pressure loading from atmospheric pressure up to 15 barg, which
This project examines the root cause of increased vibrations observed in the control valve 670FC005-VC at Shell Pernis following its replacement with a new valve from a different manufacturer. The resulting vibrations led to a critical mechanical failure at the connection between the valve stem and the actuator. The objectives
At BP Geel, a new extension of the fire protection system experienced operational failures during start-up due to surge effects. A similar incident with line AFW-023025 had previously prompted a surge analysis, leading to the current study focused on the adjacent foam system, line AFW-023024. The foam line, running nearly
At the BP Geel facility, a previous failure of the fire protection system during start-up prompted a detailed investigation into surge effects within the network. The incident occurred on line AFW-023025, and subsequent studies identified hydraulic transients as the primary cause. Given the similar configuration and operating principle of the
The ONE GUYANA Floating Production Storage and Offloading (FPSO) unit has been designed to operate in deepwater conditions with a production capacity of 250,000 barrels of oil per day. The FPSO is designed for a 20-year operational life, handling complex processes including water and gas injection. Previous projects highlighted the
During this project the optimal wearplate thickness for pipe supports on the FPSO Maria Quiteria was investigated, aligning with the Yinson project specifications. The primary objective was to validate whether the prescribed wearplate thicknesses—6mm for pipes of 10” and smaller, 10mm for larger pipes, and 12.7mm for pipes with higher
DYNAFLOW RESEARCH GROUP (“DRG”) Enters into Reseller Agreement with Quality Professional Software (“QPS”) RIJSWIJK, The Netherlands – January 24, 2024 (Dynaflow Research Group BV) –
Dynaflow Research Group and Seawind Ocean Technology announce collaboration focusing on technical readiness of floating offshore wind applications in the Mediterranean Sea. This landmark partnership