What this category covers

Flow control in this directory spans several distinct valve families. Gate valves and butterfly valves cover general shut-off duty, split mainly by bore size, weight, and whether throttling is required. Control valves cover continuous, automated regulation of flow, pressure, or temperature rather than simple on/off operation. Pipe fittings & connectors join and adapt pipeline sections around these valves, while fire hydrants & protection valves cover dedicated fire-fighting infrastructure. Specialty valves cover niche functions such as check, safety-relief, and diaphragm duty that fall outside the standard groups, and valve components & accessories supply spare parts and actuation for all of the above. Valve grinding machines cover the machine tools used to manufacture and recondition valve sealing faces. Suppliers listed here range from manufacturers and distributors to service and maintenance providers.

How to shortlist Valves & Flow Control suppliers

In the pre-selection phase, focus on core competence rather than individual product data. Check which valve types, sizes, and pressure classes a supplier actually specialises in, which industries and media they serve, and which quality management systems they operate under: ISO 9001 for quality management is a common baseline, alongside compliance with the relevant EN or API test and dimensional standards for the valve type. Delivery reliability is consistently ranked by industrial buyers as the single most important factor when choosing a new supplier, so weight demonstrated supply capability heavily alongside technical fit.

Frequently asked questions

What is the difference between a gate valve and a control valve?
A gate valve is built mainly for fully open or fully closed shut-off, while a control valve is built for continuous, automated throttling in response to a process signal.

Which standards govern industrial valves?
Common references include EN 1092 for flange connections, EN 12266 and API 598 for testing, ASME B16.34 for pressure-temperature ratings, and API 607 for fire-safe design; the exact standard depends on the valve type and application.

Do suppliers in this category also supply pipe fittings?
Some valve suppliers offer pipe fittings and connectors as part of a broader pipeline product range, while others specialise in valves alone; check each supplier’s listed categories to confirm scope.