ERHARD GmbH
About
ERHARD GmbH, founded in 1871 by Johannes Erhard in Heidenheim, Germany, is one of the world's oldest and most comprehensive manufacturers of valves and fittings for water and wastewater infrastructure, now operating within the Hawle Beteiligungsgesellschaft group. The company's product range spans the full spectrum of water network components: gate valves in the Multamed series feature epoxy coating for drinking water service (models EH1040P through EH1270P) alongside metal-seated variants for sewage and abrasive conditions, while butterfly valves, knife gate valves (ERU K1 series, EH1800), diaphragm valves, and ball valves round out the shutoff portfolio. Control and security valves handle pressure regulation and flow management, and backflow preventers protect potable water supplies from cross-contamination. ERHARD's connection and repair systems include VSK flange connectors with angled bends and the Synoflex flexible connector series (EH6700/EH6710), alongside tapping valves and saddles for live-main connections. The company manufactures underground and above-ground hydrants, including the IoT-enabled EH25LIVE model. ERHARD.live represents their digital transformation initiative, comprising the KEY digital management device (EH30LIVE) and BOX data platform for smart water network monitoring. The ERHARD Surface Protection division provides specialized corrosion-resistant coatings, while ERHARD Academy delivers training through seminars, webinars, and a mobile Showbus. Applications extend across drinking water supply, wastewater, dam and hydropower, fire protection, and industrial water systems.
Key Products
Epoxy-coated gate valves for drinking water distribution networks, available in VSK, short, and long configurations (EH1040P, EH1100P, EH1170P, EH1200P, EH1270P).
Epoxy-coated gate valves specifically designed for sewage and wastewater applications (EH1104P, EH1174P).
Epoxy-coated metal-seated gate valves for abrasive and demanding service conditions (EH1300P, EH1304P, EH1370P, EH1374P).
Quarter-turn shut-off valves for flow regulation and isolation in water distribution networks.
Knife gate valves with non-rising spindle for shut-off service in water and wastewater pipelines (EH1800).
Wafer-style housing-less valves for channel and tank shut-off applications in water treatment.
Diaphragm-type shut-off valves for corrosive media and hygienic applications in water treatment.
Quarter-turn ball valves for reliable shut-off in water distribution systems.
Automated control valves for flow regulation, pressure management, and level control in water networks.
Check valves preventing reverse flow to protect drinking water supply from contamination.
Automatic air release valves that vent trapped air from pipelines and admit air during vacuum conditions.
Flange connectors, connectors, duck foot bends, and angled bends (30°, 45°, 90°) for pipe connection and repair (EH6000-EH6060).
Flexible flange connectors for pipe connection and repair applications (EH6700, EH6710).
Underground fire hydrants for water distribution networks, including IoT-enabled ERHARD.live variants with digital monitoring.
Valves and fittings for residential water service connections from the main distribution line.
Under-pressure tapping valves and saddles for connecting new service lines to existing pressurized water mains.
Digital key device for IoT-enabled valve and hydrant management in smart water networks.
Digital data platform for monitoring and managing ERHARD smart valves and hydrants in water distribution networks.
Specialized corrosion-resistant surface coatings for valves and fittings to extend service life in aggressive environments.
Training program offering seminars, webinars, and mobile Showbus education for water industry professionals on valve installation and maintenance.
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