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ASME Section VIII Design

ASME U Stamp

API 650 / API 620 Tank Standards

Pressure Vessels and Process Tanks Manufacturer

Custom pressure vessels, process tanks, columns, separators, reactor vessels, and storage tanks for refinery, gas processing, petrochemical, chemical, and hydrogen production projects.

Gelan supports engineering review, code-based fabrication, inspection documentation, and delivery coordination for EPC teams and project owners.

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Industries Gelan Fired Heaters Support

Explore how fired heaters are used across different industries and process applications.

separator vessel pressure vessel tank
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Gas-Liquid and Three-Phase Separation

Separator Vessel / Drum

Custom separator vessels and drums for gas-liquid separation, oil-water-gas separation, knockout service, flash separation, surge control, and process buffering.

Best for refinery, gas processing, petrochemical, and chemical units where stable phase separation and downstream protection are required.

View Separator Vessels
custom reactor pressure vessel
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High-Pressure Reaction Service

Reactor Pressure Vessel

Custom reactor pressure vessels for hydrogenation, hydroprocessing, catalytic reaction, polymerization, gas-solid reaction, and other high-pressure or high-temperature process conditions.


Best for CDU, VDU, fractionation, solvent recovery, chemical separation, and other process systems that require stable mass transfer.

View Reactor Vessels
distillation column pressure vessel
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Vapor-Liquid Separation and Fractionation

Distillation / Fraction Column

Industrial columns and towers for distillation, fractionation, stripping, absorption, and vapor-liquid separation in refinery and petrochemical process units.


Best for CDU, VDU, fractionation, solvent recovery, chemical separation, and other process systems that require stable mass transfer.

View Columns & Towers
storage pressure vessel tank
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Industrial Storage and Process Holding

Storage Tank

Custom storage tanks and process tanks for crude oil, chemicals, fuel, water, intermediate products, and other industrial media under atmospheric, low-pressure, or project-specific conditions.


Best for refinery tank farms, petrochemical storage areas, chemical plants, utility systems, and process units that need safe media storage or buffering.

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Why Vessel and Tank Design Matters in Real Projects

Gelan manufactures project-based pressure vessels, process tanks, pressure containers, and storage tanks for separation, reaction, fractionation, buffering, and storage service.
Each vessel or tank can be customized based on process duty, design pressure, design temperature, medium, material, layout, inspection requirements, and delivery conditions.
01

Design Pressure and Temperature

Built around real operating and design conditions, not reused templates.

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PROJECT CONCERN

Wrong pressure or temperature basis can lead to undersizing, overdesign, and late engineering changes.

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GELAN APPROACH

We review design pressure, design temperature, medium, process duty, nozzle load, wall thickness, and safety margin before fabrication.

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PROJECT VALUE

Helps reduce design risk, control fabrication cost, and support smoother review for EPC teams and project owners.

pressure vessel engineering design
pressure vessel material selection
02

Material Selection for Process Medium

Selected for corrosion, temperature, pressure, and long-term service life.

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PROJECT CONCERN

Wrong material selection can cause corrosion, cracking, short service life, higher maintenance cost, or unplanned shutdowns.

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GELAN APPROACH

Gelan supports carbon steel, stainless steel, duplex stainless steel, clad plate, and project-specified materials based on your medium, temperature, corrosion risk, and code requirement.

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PROJECT VALUE

Helps improve corrosion resistance, operating reliability, and equipment life under demanding process conditions.

03

Code-Based Fabrication and Welding Control

Controlled fabrication from material cutting to final inspection.

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PROJECT CONCERN

Poor welding control or weak fabrication records can delay EPC review, third-party inspection, and owner acceptance.

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GELAN APPROACH

Gelan supports ASME-oriented pressure vessel and tank fabrication with controlled welding procedures, qualified welders, forming, assembly, heat treatment, and inspection hold points.

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PROJECT VALUE

Helps meet project code requirements, improve fabrication quality, and reduce acceptance risk before delivery.

pressure vessel and tank fabrication
pressure vessel nozzles and internals
04

Internals, Nozzles, and Process Function

A vessel is not only a shell. It must support the real process function.

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PROJECT CONCERN

If internals, nozzles, and flow paths do not match the process duty, the vessel may meet dimensions but fail to support stable operation.

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GELAN APPROACH

Gelan designs and fabricates vessel details based on separation, reaction, fractionation, buffering, or storage service, including nozzles, supports, trays, packing, baffles, mist eliminators, and other functional parts.

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PROJECT VALUE

Better process fit and more stable equipment performance.

05

Inspection Records and Handover Documents

Complete documents help move the project from fabrication to site handover.

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PROJECT CONCERN

Incomplete records can delay shipment release, EPC review, site installation, and final owner acceptance.

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GELAN APPROACH

Gelan supports material certificates, welding records, NDT reports, hydrotest records, dimensional inspection, nameplate information, packing records, and data book preparation.

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PROJECT VALUE

Helps make project review, delivery, installation, and final handover smoother for EPC teams and project owners.

pressure vessel quality inspection
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Industries Gelan Pressure Vessels and Tanks Support

Gelan manufactures pressure vessels, process tanks, pressure containers, and storage tanks for process units where safety, reliability, and long-term operation matter.
Our vessels and tanks are used across oil refining, gas processing, petrochemical, chemical, hydrogen, energy, and environmental projects.

Used in CDU, VDU, hydrotreating, hydrocracking, delayed coking, storage, and utility systems. Gelan can provide separator vessels, distillation columns, reactor pressure vessels, drums, and storage tanks for refinery projects

Oil Refining

Used in gas-liquid separation, dehydration, sweetening, filtration, knock-out service, compression support, and process buffering. Gelan supports pressure vessels and tanks for demanding gas processing conditions

Gas Processing

Used in olefin, aromatics, polymer, solvent recovery, and intermediate product systems. Gelan manufactures custom pressure vessels, process tanks, columns, and reactor vessels for petrochemical process units

Petrochemical Processing

Used in chemical production, material handling, mixing, buffering, separation, and storage service. Gelan can support stainless steel tanks and pressure vessels, clad vessels, and project-specified material solutions

Chemical Processing

Used in reforming, syngas cooling, gas-liquid separation, purification, heat recovery, and auxiliary process systems. Gelan supports high-pressure vessels, separator drums, reactor pressure vessels, process tanks, and auxiliary vessels for hydrogen production projects

Hydrogen Production

Why Project Owners Choose Gelan

Built for real projects, not just equipment supply.

THE GELAN STANDARD

Engineering-Led Project Coordination

Works from process duty, drawings, specifications, and project standards.

  • Support technical review with EPC teams and design institutes
  • Coordinate vessel, tank, heater, exchanger, and modular system requirements

Controlled Factory Manufacturing

Supports vessels, tanks, columns, reactors, heat exchangers, fired heaters, and modular packages.Defined checks help keep manufacturing quality stable.

  • Suitable for complex industrial equipment
  • Factory workflow supports fabrication, assembly, inspection, and shipment preparation

International Project Experience

Supports overseas project communication, export packing, documentation, and shipment coordination.

  • Experience serving EPC contractors and project owners
  • Support document packages for review, delivery, and handover

Integrated Equipment and Modular Capability

Supports standalone equipment, equipment packages, and modular systems.

  • Static equipment and modular system manufacturing support
  • Better interface coordination across related equipment
Discuss Your Vessel or Tank Project

TYPICAL APPROACH

Fabrication-Only Mindset

Only focuses on making the equipment shell.

  • Weak support during technical clarification
  • More coordination work for the buyer

Limited Equipment Scope

Only handles simple vessels or tanks.

  • Harder to support multi-equipment projects
  • Higher risk with large size or complex service

Limited Export Support

Mostly familiar with domestic delivery only.

  • More risk in documents, packing, and shipping coordination
  • Slower communication during project execution

Single-Equipment Supply


Only delivers one product without considering the wider process unit.

  • Interface issues left to the buyer
  • More coordination pressure on EPC teams
INDUSTRY EXPERIENCE YEARS
10+
PROJECT DELIVERY
100+
ON-TIME DELIVERY
95%
RESPONSE TIME WITHIN
8H
INDUSTRY EXPERIENCE YEARS
10+
PROJECT DELIVERY
100+
ON-TIME DELIVERY
95%
RESPONSE TIME WITHIN
8H

Inside Gelan Pressure Vessel and Tank Fabrication

Watch short videos from Gelan’s workshop, including fabrication, welding, inspection, and delivery. See how custom pressure vessels and process tanks are built for real industrial projects.

FAQs About Pressure Vessels and Process Tanks

Q1: What is the difference between a pressure vessel and a storage tank?

A pressure vessel is built to hold gas or liquid under pressure. A storage tank is mainly used to store liquid under atmospheric, low-pressure, or project-specific conditions.
The main difference is the design focus. A pressure vessel focuses on pressure containment, while a storage tank focuses on safe storage capacity, medium, layout, and tank standard. In real projects, Gelan can help review whether you need a pressure vessel, storage tank, or custom process tank.

To request a quotation, send the basic process, design, material, and delivery requirements.
Useful information includes:

  • Vessel or tank type
  • Design pressure and design temperature
  • Medium and capacity
  • Material requirement
  • Code or standard
  • Drawings, nozzle layout, or internals
  • Delivery location and project schedule

If your drawings are not complete, Gelan can still review early requirements for custom pressure vessels, process tanks, or pressure containers.

Yes. Gelan supports ASME-oriented pressure vessel and tank fabrication for industrial projects.
For pressure vessel projects, Gelan can support ASME Section VIII and ASME U Stamp requirements. For tank projects, Gelan can support API 650 / API 620 requirements when they apply to the project. We also support welding control, inspection, hydrotest records, and handover documents.
Gelan manufactures custom tanks and pressure vessels based on your process duty, pressure, temperature, medium, material, and project standard.
The products shown on this page are representative types we commonly support, such as separator vessels, process drums, distillation columns, reactor pressure vessels, process tanks, and storage tanks. If your project requires another type of pressure vessel tank or process vessel, you can send drawings or duty conditions for review.
Yes. Gelan can manufacture stainless steel tanks and pressure vessels for corrosive, chemical, petrochemical, and special media service.
Material selection is based on the medium, corrosion risk, temperature, pressure, code, and service life target. Besides stainless steel, Gelan can also support carbon steel, duplex stainless steel, clad plate, and project-specified materials.
Choose a pressure vessel manufacturer by checking engineering capability, code experience, fabrication quality, inspection support, documentation, and delivery experience.
For EPC and industrial projects, the supplier should be able to understand your process duty, support code review, control welding and inspection, and provide records such as MTC, NDT reports, hydrotest records, and data book documents. Gelan supports pressure vessel and tank projects from technical review to fabrication, inspection, documentation, and shipment coordination.
In many searches, "pressure container" and "pressure vessel" may refer to similar pressure-rated equipment. But “pressure vessel” is the more formal engineering term.
A formal pressure vessel is usually defined by design pressure, design temperature, material, medium, code requirement, inspection, and testing rules. If your project uses the term pressure container or pressure containers, Gelan can review the duty and confirm the right equipment type.

Start Your Vessel and Tank Project With Gelan

Share your drawings, operating conditions, material requirements, and project standards. Gelan will help review your custom pressure vessel, process tank, or storage tank requirement and provide project-based manufacturing support.


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