Netafim Manual Electric Hydrometer - LHM Series High-Pressure Valve

Netafim’s Manual Electric Hydrometer from the LHM series is a heavy-duty irrigation control valve and water-metering solution built for commercial, institutional and sports-field systems. Engineered for remote operation and retrofit projects, it combines dependable flow regulation with integrated metering and robust construction for long service life.

• Rugged construction: Cast iron body with a polyester coating and a reinforced natural rubber diaphragm provide corrosion resistance and long-term durability in high-use irrigation systems.
• Integrated metering and register options: Available with reed switch or photo-diode register choices and pulse-output resolutions to communicate with controllers and central control units.
• Sizes and connections: Offered in 1½, 2, 3, 4, 6 and 8 inch sizes; 1½" uses male pipe thread, 2" uses female pipe thread, and 3"–8" are flanged to ANSI standards.
• High-pressure performance: Designed for demanding sites with a maximum working pressure up to 235 psi for both manual and electric operation; suitable as a remote master valve.
• Pilot and control flexibility: Manual-electric pilot options allow local manual operation or full electric control for automated irrigation sequences and remote master-valve functionality.
• Compliance and installation: ANSI-drilled flanges and EEC Class A approval ensure compatibility and quality; for accurate metering install a continuous-acting air vent upstream of the hydrometer.

Comprehensive technical documentation and installation guides are available to verify register compatibility, pulse outputs and wiring for each register option. Choose the appropriate LHM variant to match your system’s connection, register type and control requirements.