In biogas recovery applications at various treatment plants, flame arresters for in-line and end-of-line mounting, deflagration proof or, where the distance from the ignition source is very great, detonation proof, are essential safety equipment. #CASHCO designs and manufactures a complete range of products for gas and vapour control and safety, complying with European manufacturing and safety standards (ISO 16852, 2014/34/EU, 2014/68/EU).