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Condensate Pots in Oil & Gas Plants: Applications & Benefits in Vietnam

July 27, 2025 0 Comments condensate-pot
Condensate pots that are used in oil and gas facilities are used to collect and extract condensate from the gas and steam lines. This safeguards the delicate equipment, like gauges and transmitters. It acts as a buffer and ensures that the intended phase, either liquid or gas, is the one that reaches the instruments, which in turn increases the precision of measurement and also ensures that the moisture and debris settle out. This article will help you to understand the relevance of condensate pots in the oil and gas plants and also provide the chief condensate pot applications and condensate vessel benefits in the oil and gas industry of Vietnam. 

What is a Condensate Pot?

A steam condensate pot in Vietnam is a gas plant condensate device that manages the liquid that is created when steam or vapor cooks and condenses. The role of the condensate pot is essential in many different types of industries, like oil and gas plants. It guarantees correct readings and shields different fragile devices from high temperatures and steam. Some of these devices are Differential Pressure (DP) Transmitters, Pressure Gauges, Pressure Switches, and  Flow Transmitters, which are orifice- or Venturi-based.

What are the types of Condensate pots used in oil and gas plants? 

Condensate pots can be classified into various types on the basis of the fluid properties and process circumstances. Carbon steel, stainless steel, and corrosion-resistant alloys such as Monel, Inconel, and Hastelloy are chosen to tolerate severe temperatures, pressure, and aggressive processes. The number of ports may also differ to accommodate different piping layouts . Special versions of condensate pots are the “catch pots” and “seal pots” that guarantee accurate pressure measurement and preserve the vulnerable instruments in challenging plant conditions. 

What are the unique features of the oil and gas plants of Vietnam?

Due to the country’s strategic energy planning, resource distribution, and geographic location, Vietnam’s oil and gas facilities have a number of distinctive characteristics. With significant producing fields situated in the Cuu Long, Nam Con Son, and Malay-Tho Chu basins. These industries are primarily offshore in nature. Many offshore installations are necessary, like subsea infrastructure, such as wellhead platforms, subsea tiebacks, and FPSOs (Floating Production Storage and Offloading units).  The state-owned company PetroVietnam (PVN) is in charge of exploration, development, refining, and distribution. This is a prominent feature of Vietnam’s oil and gas environment. Usually state-owned companies have joint ventures with multinational oil firms (IOCs) such as PTTEP, ExxonMobil, and Rosneft.

What are the specifications of a Vietnam gas plant condensate device, like a condensate pot?

Specification Details
Material of Construction (MOC) Carbon Steel (ASTM A106 Gr B), Stainless Steel (SS304/SS316/SS316L), Alloys (Monel, Inconel, Hastelloy)
Capacity/Volume 250 ml to 2000 ml
Connection Type Threaded (NPT), Flanged (ANSI B16.5), or Socket Weld (ASME B16.11)
Connection Size ½” or ¾” NPT (F), others as specified
Number of Ports 2, 3, or 4 Ports
Mounting Orientation Vertical (Standard), Horizontal (on request)
Pressure Rating ANSI Class 150#, 300#, 600#, 900#, 1500#, 2500#
Temperature Rating Up to 400°C (750°F), depending on MOC
Applicable Standards ASME B31.3, NACE MR0175, PED, API, EN
Testing Hydrostatic Test at 1.5 × Design Pressure
Optional Accessories Drain Valve, Vent Valve, Mounting Brackets, SS Tag

What are the functional roles of condensate pots in oil and gas plants?

  1. Measurement of differing pressures in offshore platforms

Condensate pots are positioned between the orifice plate and the differential pressure (DP) transmitter in offshore fields such as the Cuu Long and Nam Con Son basins. They have a particular use in steam flow measurement in Vietnam’s oil and gas plants in other countries. They are used in measuring systems on wellhead and riser platforms, which guarantees precise measurement and preserves steady fluid flow. 
  1. Protection of DP Transmitters in High-Moisture Gas Lines

Condensate pots are essential for the prevention of moisture ingress into sensitive DP transmitters, especially for flare gas, wet gas, and sour gas. The high humidity and fluctuating gas composition in Vietnam’s offshore production make the use of these pots all the more necessary.
  1. Refinery  Steam Line Instrumentation

Vietnam gas plant condensate devices, like Condensate pots, are frequently used to catch condensate before it gets into sensitive equipment like DP transmitters. This is crucial in the oil and gas industries because precise steam-driven equipment flow control is necessary in refinery units. 
  1. Monitoring of Gas-to-Power Systems

Condensate pots are used in metering stations and pressure reduction systems in Vietnam’s expanding gas-to-power plants to ensure accurate flow rate measurement and transmitter longevity, even in humid or cold climates that are close to coastal power plants.
  1. Monitoring of Pipeline Pressure Drops

Condensate pots provide a constant reference fluid level in PVGas-managed long-distance gas transmission pipelines. This assists in precise pressure drop monitoring. This is particularly true in areas where temperature gradients may result in gas condensation.

What are the condensate vessel benefits in Oil & Gas Plants? 

  1. Keeps the fluid head for pressure transmitters constant. This is essential for precise flow monitoring.
  2. It prevents DP transmitters from coming into direct contact with the sour condensate or steam. 
  3. Lessens signal fluctuation in dynamic systems. Such swings might be because of fluid surges, flashing, or condensation. 
  4. Supports the system against the extreme and challenging offshore conditions
  5. Prolong the life of the system through the reduction of fluid hammer and moisture-related defects. 

Conclusion

A Vietnam gas plant condensate device, like condensate pots, is a vital part of instrumentation systems. They are especially useful in the offshore and oil and gas settings in a country like Vietnam. They have the capacity to separate and stabilize process fluids that are necessary to ensure that the application is dependable over a long period. They are also essential to maintain measurement integrity and operational safety in the Vietnamese oil and gas company operation, where there are high-moisture gas streams and companies are required to have a joint venture between state and foreign companies. Arcellor Controls is a top producer and supplier of condensate pots used in oil and gas plants in Vietnam. The main purpose of these pots is to measure steam or vapor that condenses into a liquid condition at room temperature. It keeps a steady liquid head over the instrument while cooling extremely hot liquids. We guarantee premium solutions for condensate pot demands, and we offer a range of grades, types, and sizes of condensate pots that provide all the condensate vessel benefits. Get in touch with us to know more.
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