As a system supplier, MWH develops seat ring and valve spindle pairings, to achieve more performance with less wear. Careful material selection and tolerancing of interacting components (valve / seat) are crucial for maximizing lifetime. MWH manufactures seat rings from Nickel-based alloys and stainless steels, layered with wear resistant hardfacing alloys. MWH offers reliable solutions, including cooled and non-cooled seats, hardening techniques, as well as various innovative coatings.