🧭 SIGMA Olomouc (Czech Republic) — one of the most important industrial‑metering and pump‑manufacturing companies in Central Europe. Founded 1868 — Olomouc, Moravia.

SIGMA Olomouc is part of the historic SIGMA Group, one of the oldest and largest pump and hydrotechnical manufacturers in Central Europe. The company became a major supplier of:

industrial pumps

flow‑measurement equipment

hydrotechnical systems for waterworks

components for municipal water‑supply networks

Although SIGMA is best known for pumps, it also produced flow meters, pressure regulators, and hydrometric accessories. Founded by Josef Sigmund (1831–1904), a Moravian industrialist with the original company Sigmund‑Pumpenfabrik loacted in Lutín (near Olomouc), Moravia.

Sigmund’s factory began with agricultural and industrial pumps, later expanding into water‑supply engineering and hydrometric devices.

Historical Evolution

1868–1918 — Austro‑Hungarian Era

Production of cast‑iron pumps and early hydrotechnical devices

Supply to municipal waterworks across Moravia and Silesia

1918–1945 — Czechoslovak Industrial Expansion

Growth into one of the largest pump manufacturers in the new republic

Introduction of flow‑measurement accessories for waterworks

1948–1989 — State Enterprise (SIGMA National Corporation)

Nationalization under socialist industry with large expansion into flow‑measurement devices.

SIGMA became a dominant supplier across Eastern Europe and the USSR

1990s–Present — SIGMA Group Privatization and modernization

Specialization in:

- high‑capacity pumps

- metering accessories

- hydrotechnical engineering

While SIGMA was not a domestic water‑meter manufacturer, it produced:

Woltmann Industrial Flow Meters (DN 80–DN 300+).

Electromagnetic Flow Meters with with Czech electrotechnical firms to supply magmeters for:

Venturi & Differential‑Pressure Flow Meters

SIGMA did not produce domestic water meters (the small brass meters used in homes).

These devices were commonly installed in Czech, Slovak, Polish, and Hungarian waterworks from the 1960s–2000s. The company no longer produces water meters.