The Blackhall seal of quality guarantees the highest level of inspection, testing, controls and attention to detail. With our continuous improvement programmes, we take all necessary steps to ensure we deliver on our promise: high-quality products and unrivalled customer service.

Our quality management system is continually audited and assessed by both customers and external authorities. Each valve is identified by a unique serial number and all shell and trim materials are traceable to the original material certificate. A data book of the certificates and quality documents of the materials used can be provided for each valve.