are manufactured and come in all sizes and pressure ratings to meet all international standards and special requirements.
Ventilerne anvendes til:
Water supply, pumping stations, irrigation plants, dams and storage basins, hydro electric plants, thermal power stations, plants for hot water and cooling water, district heating and heating lines, chemical and petrochemical systems, sewage engineering, bio-engineering, gas supply and distribution, hot-gas treatment, flue-gas desulphurization, coal-dust conveyance, industrial plants and in offshore fields, fire-fighting systems, etc.
A large number of Erhard valves are designed for economical modular concepts. Thus, similar-to-standard types with manual operation, electric actuator, pneumatic actuator, modulating actuator or limit switches can be supplied from stock within a short time.
According to duty and application, different materials can be chosen, e.g. lamellar graphite cast iron, ductile cast iron, cast steel, welded steel, stainless steels, gunmetal, and bronze. Furthermore, acid proof protective rubber coatings, PTFE linings or synthetic coatings can be special-ordered.
The standard protection against corrosion is ensured by either an approved epoxy coating or vitreous enamel.
The quality assurance systems of Erhard valves is certified in accordance with DIN EN ISO 9001.
Butterfly Valves