At COMEVAL VALVE SYSTEMS, quality control is not limited to the final product: it starts when materials are received and follows every phase of the manufacturing process. From the selection of raw materials and components through to final inspection
At COMEVAL VALVE SYSTEMS we understand that every project brings unique requirements. That is why we offer tailored solutions that match our customers' needs precisely. We are finishing the manufacture of UNIFLOW® EN/DIN gate valves with: –C5M
Our programme includes one of the most complete diaphragm valve ranges on the market: elastomer and fluoropolymer linings and diaphragms, multiple face-to-face lengths, connection types, manual, pneumatic and electric operators, external paint
After the rigorous inspection of all their components, at COMEVAL VALVE SYSTEMS we move on to assembling UNIWAT® 504 resilient seated gate valves. Every unit is assembled with the greatest attention to detail, ensuring a perfect fit and reliable
At our facilities in El Puig (Valencia) we have a fully equipped workshop para operaciones de mecanizado, montaje, ajuste y after-sales service de válvulas industriales, accesorios y sistema, incluyendo: – Conventional and CNC milling machines
At COMEVAL we know that taking care of the details at every stage of the process is fundamental: from defining the specifications, through design, manufacture and quality control, to final delivery at the plant. A failure at any of these stages can
We recently solved a hydrochloric acid and caustic soda control requirement on a project at an industrial plant in the chemical sector. The request called for a valve able to withstand highly corrosive liquids, so our recommendation was to turn to
One common mistake is to think #Diaval valves are only used for work with highly abrasive or corrosive chemical fluids. In fact, Diaval valves can also be used where water is the fluid being handled. The adaptability of diaphragm valves, with their
The testing processes follow once the product batches for each project are ready. Our facilities are equipped to test valves across a wide range of diameters and conditions. This adaptability means our valves hold a very varied set of quality
At Comeval we are able to handle large projects, so being able to work flexibly without losing the efficiency of our hydraulic tests is a fundamental requirement. For this major #Uniwat butterfly valve project we carried out various tightness tests









