🧭 🇸🇪 Kungsörs Mekaniska Verkstad AB (Kungsör, Västmanland)

Industrial Engineering & Flow‑Measurement Manufacturer

Active 1940s – 1970s • Specializing in Woltmann and Turbine Flow Meters

⭐ 1. Identity & Synopsis

Kungsörs Mekaniska Verkstad AB was a medium‑scale mechanical engineering firm located in Kungsör, near Västerås on Lake Mälaren.

It produced industrial flow‑measurement equipment, pump housings, and hydraulic components for municipal waterworks and paper‑mill installations.

While not a domestic‑meter manufacturer like Mälar‑Mätare, it was one of Sweden’s few companies to design and fabricate large‑diameter Woltmann‑type meters for industrial and municipal use.

⭐ 2. Founding & Lineage

Founded: ca. 1943 – 1945

Founder: Nils Åke Sundström, mechanical engineer and former ASEA technician

Location: Kungsör, Västmanland County

Corporate form: Aktiebolag (AB)

Parent industry: Swedish heavy‑mechanical sector (linked to ASEA and Kockums supply chains)

The firm began as a precision‑machining workshop serving local industry, then expanded into hydraulic and flow‑measurement fabrication during Sweden’s post‑war infrastructure boom.

⭐ 3. Product Range

Industrial Woltmann Flow Meters (DN 80 – DN 300)

Cast‑iron or bronze bodies

Horizontal‑axis turbine impeller

Mechanical multi‑dial register

Used in municipal pumping stations and paper‑mill water circuits

Turbine Flow Meters (DN 50 – DN 150)

Stainless‑steel impeller assemblies

Designed for process‑water and cooling systems

Often paired with ASEA electrical monitoring units

Hydraulic Components

Pump housings

Valve bodies

Flow‑control casings

Calibration Equipment

Flow‑test benches for industrial meters

Pressure‑drop measurement rigs

⭐ 4. Technical Characteristics

Accuracy: ± 1.5 % at nominal flow

Materials: Cast iron, bronze, stainless steel

Markings: “KUNGSÖRS MEKANISKA VERKSTAD AB KUNGSÖR”

Threading: Flanged connections (DIN standard)

Calibration: Verified by municipal waterworks (Västerås Vatten, Eskilstuna Vatten)

⭐ 5. Historical Context

During Sweden’s industrial expansion (1945–1970), Kungsörs Mekaniska supplied large‑diameter meters and flow‑measurement assemblies to:

Municipal waterworks (Västerås, Eskilstuna, Örebro)

Paper mills (Stora Kopparberg, Skoghall)

Hydropower plants (Vattenfall installations)

By the late 1960s, electronic metering and imported magmeters from Siemens and ABB displaced mechanical flow meters.

Kungsörs Mekaniska ceased meter production around 1975, continuing briefly as a general machining workshop before closure.

⭐ 6. Museum‑Grade Catalogue Entry

KUNGSÖRS MEKANISKA Woltmann Meter DN 150

Manufacturer: Kungsörs Mekaniska Verkstad AB, Kungsör, Sweden

Period: 1950 – 1970

Type: Industrial Woltmann flow meter

Body: Cast iron, flanged ends

Impeller: Horizontal‑axis turbine

Register: Multi‑dial mechanical counter

Markings: “KUNGSÖRS MEKANISKA VERKSTAD AB KUNGSÖR”

Use: Municipal pumping stations and industrial water circuits

Significance: Represents Sweden’s mid‑century industrial metering craftsmanship.