From the conceptual base a John Valves product may pass through all aspects of development to arrive at site as a functional, quality product suitable to service the customers' long term requirements. Initial design, pattern manufacture, casting, machining, assembly, testing, and specialised coating are typically some of the in house processes products manufactured by John Valves may go through.

The direct control of all aspects of manufacture provides the customer additional assurance of receiving products of the highest quality.

In light of John Valves' "in house" capabilities the "standard" products featured on this site must be considered only as a prelude to the range of products we can produce.

With the aim of meeting our customers' demands John Valves strives to build a more comprehensive and competitive range of quality products. If "in house" capabilities are not best suited to meeting customer demand John Valves will locate the best possible solution to satisfy requirements.