Gasport GF

Flap damper for clean or charged fluids.

A cost-effective backflow prevention check valve.

Gasport GF Flap damper for clean or charged fluids.
At paravalves, every development has in-house engineering and manufacturing facilities for a wide range of industrial applications anywhere in the world.
We work from the delivery and dedication, from the person. Always open to any need, project, industry and customer. With the proactivity and intelligence necessary to face any challenge proposed to us. An engineering and manufacturing team that goes hand in hand with the customer, to always offer a reliable product, with high performance and durability.
Our Gasport GF valves are classified as follows, depending on their cross-sectional geometry:

GF Flap damper for clean or charged fluids.

Beyond the valve

Flap swing check valves are made as a welded assembly construction and usually used to be installed on end of line and anchored to concrete wall. The design prevents reversal of flow in piping systems, which makes a ideal solution when backflow could potentially cause damage to pumps, filters, or process equipments. 

Flange drilling can be made according to customer request or PARAVALVES standard. The seat make direct contact with the disc as an unidirectional or bidirectional design, and can be taylored to fit customer specifications for seat level or design pressures and temperatures.

Up to
In all sizes
1 bar/14.5 psi
Up to

Customized valves

We design and manufacture customized solutions for each customer and need.

View more

A compact solution

Designed to prevent backflow.

Our stack damper valves have a lightweight and compact design. As a result, our dampers are particularly suitable for air conditioning systems and industrial ancillary applications, with significant savings in space and investment costs of the installation.

Articulated disc system

To allow or prevent the passage of flow.

Thanks to our hinged disc design, our flap valves do not require actuators for proper operation. The valve uses the force of the fluid to actuate, thus saving on maintenance costs and facilitating installation.

Computational Fluid Dynamics

Non-conformist spirit that makes our engineering team go beyond.

At paravalves, Engineering team is able to perform  Finite Element Analysis (FEA) for valve components and assemblies.

Every component is designed and validated by top-notch softwares by the paravalves engineering team.

Main features

Working pressures up to 1bar.

Sizes up to DN2000.

Robust and reliable design.

Taylor-made solutions.

On/Off service.

Flange drillings to main international standards.

Different End connection types.

Epoxy coating for carbon steel components.

Round, squared, rectangular shape section bore and disc.

Compact and light weight design.

Low pressure drop.

Related industries

Over time, PARAVALVES team has had the chance to analyze not only the design of these valves but the specific applications they are used in as well in a cost effectiveness mind. From Biogas to Petrochemical applications, we’re confident the PARAVALVES Gasport Series Damper valves will be a great solution for the following industries:


Can we help you with anything?

If you need a quotation for any of our products, have any questions, suggestions or want to distribute our valves, we will be more than happy to answer you.