Yuhong Group: Complete Pressure Vessel Solutions – From Separators to Heat Exchangers

Yuhong Group Co., Ltd. designs and manufactures a comprehensive range of thermal and pressure equipment for global industries. Our core offerings include shell and tube heat exchangers, pressure vessels, air coolers, and process separators – including two-phase and three-phase separators for oil, gas, and water separation. We also supply critical components: finned tube bundles, U-tube bundles, heat exchanger tubesheets, and all related parts – ensuring full support for new projects and maintenance.

Shown in the attached photographs and schematic is a horizontal three-phase separator – a pressure vessel designed to separate incoming well streams into gas, oil, and water phases. The schematic illustrates the internal components including the inlet diverter, baffles, demister, weir, and level control nozzles that enable efficient phase separation.

Product Focus: Three-Phase Separator – Engineered for Efficient Phase Separation

A three-phase separator is a pressure vessel that separates a mixed inlet stream into three distinct phases: gas, oil (liquid hydrocarbon), and water (produced water). The separation is achieved through a combination of gravity settling, impingement, and coalescing, with internal components designed to maximize separation efficiency.

Based on the images and schematic, this separator exhibits:

• Configuration: Horizontal vessel – providing maximum liquid surface area for gravity separation

• Material: Carbon steel (ASME SA516 Gr.70) – with optional corrosion-resistant lining or clad plate

• Construction: ASME Section VIII, Division 1 compliant with U-Stamp certification

• Internal components: Inlet diverter, baffles, demister, weir, and level control nozzles

• Application: Oil/gas/water separation in upstream and midstream processing

Key Components & Their Functions in a Three-Phase Separator

Technical Highlights of Our Three-Phase Separator

• ASME U-Stamp certified: Full compliance with ASME Section VIII, Division 1 – ensuring global acceptance for safety and regulatory requirements.

• Optimized internal design: Inlet diverter, baffles, demister, and weir are designed using computational fluid dynamics (CFD) or empirical correlations to maximize separation efficiency and minimize liquid carryover.

• Custom engineering: Designed to your specific flow rates, fluid properties, pressure, and temperature conditions.

• Material flexibility: Carbon steel (SA516 Gr.70), stainless steel (304/316L), clad plate, or nickel alloys – selected based on service fluid corrosivity.

• NDE & PWHT: Full NDE (RT, UT, MT, PT) and PWHT as required by ASME code – ensuring weld integrity.

• Hydrostatic testing: Every separator is pressure-tested before shipment – documented with test reports.

Knowledge Module: Separator Types – Two-Phase vs. Three-Phase

Knowledge Module: Three-Phase Separation – How It Works

Based on the schematic provided, the separation process follows these steps:

1. Inlet Flow: The incoming mixed stream (gas, oil, water) enters through the inlet nozzle.

2. Inlet Diverter: The flow is redirected by the inlet diverter/impingement plate, causing a sudden velocity drop. This initiates the separation of gas from liquids.

3. Gravity Separation: The liquids fall into the liquid section of the vessel. Oil (lighter) rises to the top, water (heavier) settles to the bottom.

4. Baffles: Baffle plates promote liquid/liquid separation by reducing turbulence and preventing short-circuiting.

5. Weir Plate: The weir maintains the oil/water interface level. Oil flows over the weir, while water remains on the inlet side.

6. Demister: Gas passes through the demister (mist eliminator) where any remaining liquid droplets are captured and returned to the liquid section.

7. Outlet Streams: Gas exits through the top nozzle, oil exits through the oil outlet, and water exits through the water outlet – each with level control valves to maintain proper levels.

Knowledge Module: Internal Components & Their Importance

Advantages of Ordering Separators from Yuhong Group

• ASME U-Stamp certification: Full code compliance – accepted worldwide for regulatory and insurance purposes.

• Complete design & fabrication: From process design to final delivery – all in-house, including internal components.

• Material verification: PMI (Positive Material Identification) on all pressure-retaining components.

• NDE & documentation: Complete NDE reports, hydrostatic test reports, and ASME data reports included.

• Component integration: Vessels supplied with all internals – inlet diverter, baffles, demister, weir – and external accessories.

Component-Only Supply – We Also Provide for Maintenance & Spares

If your existing separator needs replacement parts, we supply individual components without ordering a complete new vessel:

• Inlet diverters / impingement plates – to your dimensions

• Baffle plates – carbon steel or stainless steel

• Demister / mist eliminator pads – stainless steel or alloy

• Weir plates – carbon steel or stainless steel

• Nozzles and flanges – SA105, SA182 – any facing type

• Manway covers and gaskets – complete access closure assemblies

• Dished heads – formed to your dimensions and thickness

• Heat exchanger tubes – for internal coils or external heat exchange

• Finned tube bundles – for external heating/cooling applications

Typical Applications for Three-Phase Separators

Knowledge Module: Separator Sizing & Design Considerations

Quality Assurance & Documentation

Every three-phase separator we fabricate includes:

• ASME U-Stamp certification – with Manufacturer’s Data Report

• Material Test Certificates (MTC) per EN 10204 3.1

• NDE reports – RT, UT, MT, PT as required

• PWHT records – time-temperature charts

• Hydrostatic test report – documented and witnessed

• Internal component inspection report

• PMI (Positive Material Identification) – 100% verification

• Third-party inspection (SGS, BV, TÜV) – at buyer's request

Get a Quotation for Your Three-Phase Separator

To quote a three-phase separator like the one in your photographs, send the following to jimmy@steelseamlesspipe.com:

• Flow rates (gas, oil, water)

• Fluid properties (density, viscosity, corrosivity)

• Inlet conditions (pressure, temperature)

• Required separation efficiency (liquid carryover, oil in water)

• Required material (carbon steel, stainless steel, clad)

• Any drawing or sketch available

We will respond with a technical proposal, general arrangement drawing, and competitive price – typically within 72 hours.