About us


We designed our first miniature check valves twenty-five years ago because we couldn’t find one small enough! Today, we make some of the smallest check valves in the world and many are available online.

All our miniature check valves are spring assisted, have seals and are leak tight. We mean leak tight! We control all aspects of the design and can fabricate in a wide range of materials. Today we manufacture our miniature check valves in 316 Stainless Steel, Hastelloys, Titanium alloys, ECTFE and PEEK. We even control the manufacture of the springs so we can control the cracking pressure. Our seals are available in more than a thousand compounds to meet the most challenging requirements of today’s applications.

For bespoke applications we can provide prototypes quickly and economically. Our engineers are highly experienced and incredibly knowledgeable. Our fluid modelling programs are the most advanced available. Let us provide you with the miniature check valve for your application.