- Home
- Products
- About Us
- Quality
- Application
- Services & Support
- Blogs
- Contact
| Quantity: | |
|---|---|
A vent pipe is a fabricated piping component designed to safely release trapped gases, air, vapor, or pressure from heat exchangers, pressure vessels, LNG equipment, hydrogen cooling systems and industrial process units. These components are commonly installed on headers, manifolds, pressure vessels and heat exchanger modules to facilitate commissioning, maintenance, pressure testing, nitrogen purging and system venting. As a vent pipe manufacturer focused on custom fabrication, we produce all vent pipes according to customer drawings with custom diameters, lengths, nozzle connections and welding configurations, supporting diverse requirements across industrial applications. For commercial procurement teams selecting piping components for critical process equipment, these solutions deliver consistent performance aligned with specified design parameters.
All vent pipes are produced in strict accordance with customer-provided drawings, with fully adjustable dimensions, connection types and welding structures to fit specific equipment layouts. Fish-mouth nozzle connections are available as a configurable option to match varied assembly and integration demands. This tailored production approach ensures each component aligns precisely with existing system configurations, reducing adaptation work during on-site installation.
High pressure design options are available to accommodate demanding operating conditions across industrial systems. The components support an extended design temperature range to suit both cryogenic processing environments and high-temperature process lines, enabling deployment across diverse application scenarios.
All finished vent pipes receive a pickled and passivated surface finish. PMI (Positive Material Identification) verification is conducted on all raw materials to confirm material composition fully matches specified grade requirements, ensuring material traceability for each production batch.
Hydrostatic pressure testing is performed on every finished vent pipe unit to verify structural integrity and pressure resistance before shipment. This testing procedure validates that each component meets the stated design pressure specifications.
Item | Range |
|---|---|
Diameter | 1/2" – 48" |
NPS | DN15 – DN1200 |
Wall Thickness | SCH 5S – SCH XXS |
Length | According to drawing |
End Connection | Bevel End |
Surface Finish | Pickled |
Design Pressure | Up to 350 Bar |
Design Temperature | -196°C to 650°C |
 |  |  |
Vent pipes are available in a range of metallic materials to suit different operating environments, process media types and corrosion resistance requirements. Available material options include austenitic stainless steel, super stainless steel, duplex steel, nickel alloy, and titanium & titanium alloy. Material selection can be fully specified based on customer drawings and application conditions to ensure long-term compatibility with target process systems. For corrosive or high-purity process environments, premium material grades are available to meet extended service life requirements.
 |  |  |
 |  |  |
 |  |  |
LNG vent pipe solutions are widely deployed across LNG facility operations, including LNG recovery systems, LNG superheaters, LNG chillers, LNG liquefaction plants and LNG regasification systems. These components support safe, controlled venting during cryogenic process operation, routine maintenance and system commissioning procedures.
For hydrogen-related facilities, hydrogen vent pipe components are applied in hydrogen cooling systems, hydrogen refueling stations, fuel cell cooling systems and hydrogen pre-coolers, supporting controlled gas release and pressure management in hydrogen service environments.
Vent pipes are compatible with various gas compressor cooling units, including gas compressor coolers, compressor intercoolers, compressor aftercoolers and compressor discharge coolers. They support system pressure regulation, air release during startup, and maintenance venting for compressor cooling circuits.
These vent pipe components fit multiple heat exchanger configurations, including microchannel heat exchangers (MCHE), printed circuit heat exchangers (PCHE), shell and tube heat exchangers and air coolers. Both MCHE vent pipe and PCHE vent pipe configurations enable efficient air and gas release during equipment operation, commissioning and pressure testing processes.
Beyond heat exchange systems, pressure vessel vent pipe products also serve general process equipment such as pressure vessels, steam generators, waste heat recovery units (WHRU), kettle reboilers, economizers and condensers, supporting safe pressure management and gas venting across industrial process lines.
Yes, all vent pipes can be manufactured according to customer-provided engineering drawings, with customizable diameters, lengths, nozzle connections and welding configurations to match specific equipment and project requirements.
Available material options include austenitic stainless steel, super stainless steel, duplex steel, nickel alloy, and titanium & titanium alloy. Material selection can be aligned with your application conditions, process media and specification requirements.
All finished vent pipes undergo hydrostatic pressure testing to verify pressure resistance and structural integrity. PMI material verification is also performed on raw materials to confirm composition meets specified material grade standards.
