Venting Stacks and Bollards

Passive venting of low quality landfill gas or other methane gas sources can be effectively controlled by the installation of passive venting systems.

product pdf

The MGS steel fabrication department produces vertical venting columns and bollards required for passive venting systems. The columns are normally fitted with a rotating aspiromatic cowl to provide a small vacuum and increase the efficiency of the extraction. Other static type cowls are also available.  We are able to produce venting stacks and bollards to suit most specifications, please enquire for more details.

Click on the "view product PDF" link to view installation options for bollards and vent stacks.

Examples of previous products produced:

Venting bollards
Venting stacks with rotating cowls
Lantern style vent stacks
Vent stack adaptors 
Bird protection cages


Head Office: +44 (0)1359 271167   |   Coventry Office: +44 (0)2476 602323   |   Telford Office: +44 (0)1952 459778

Marton Geotechnical Services Ltd
Geotechnical Centre, Rougham Industrial Estate, Rougham, Bury St Edmunds, Suffolk IP30 9ND

Geotechnical Instrumentation | Groundwater Monitoring | Landfill Gas Extraction Venting Systems

Drilling: Site investigation, land remediation and water well construction.
Products: Geoscreen, Geofilter, Duroscreen, Bentonites, Filter media, Piezometers.

Groundwater: Monitoring, sampling remediation and control.
Products: Diver Dataloggers, Groundwater Monitoring Software.

Landfill Drainage: Collection and removal of leachate and methane gas.
Products: PE Pipework, Telescopic Duroscreen, Wellheads, Knockout Pots, Manifolds & Chambers.

Demco Rail Track Drainage, Sewer and Culvert Rehabilitation products.
Products: Terradrain, Terraline, Terrafilter, Terrapit.

Geothermal: Ground source heat installations.
Products: Geothermal loops, Geothermal Grouts, Geothermal Test Units.

Pumps: For use in environmental and civil engineering projects.
Products: Geopump, Posiflow, Geoskimmer, Geovac, ProPurge.

Fraste: Fraste hydraulic drilling rigs and accessories
Products: Fraste Drilling Rigs and Accessories, Multidrill Series, FS Series, Mito Series, Exploration Series