A Diaphragm Solenoid Valve That Used Water Pressure to Actuate

TLX Technologies used latching technology to design a battery-powered valve for a smart water meter.

Customer Problem

A manufacturer needed a valve to control the flow of water through their smart water meters, but they were having trouble finding a solution that matched all of their requirements. They needed an extremely low-voltage pilot valve that could operate in a wide range of temperatures and handle high mechanical shock loads without changing state. Because the valve would handle drinking water, it also needed to be NSF certified.

The TLX Solution

TLX Technologies designed a battery-powered diaphragm latching solenoid valve. This valve used a small solenoid with a comparatively high latching force to open and close an orifice in the diaphragm. This changed the pressure on either side of the diaphragm, allowing water pressure to open and close the main valve rather than the solenoid. The valve was designed to meet the requirements for NSF certification.

View Design Solution

Latching Diaphragm Solenoid Valve

Operating temperature range: 2°C to 35°C (35.6°F to 95°F)
Operating pressure: 137.9 to 1206.6 kPa
Operating voltage: 2.9 to 3.6 Vdc
Working stroke: 0.48 mm ± 0.10 mm
Coil resistance at 25°C: 7.4 Ω
Current draw: 500 mA max.

All TLX components are customized to fit system requirements, meaning technical specifications are unique to each customer and design. Examples given on our website are for illustration purposes only.

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Our Process

Step 1 / Initial Review

Our engineering team works directly with you to determine the viability of your program and identify the best solution based on your specifications.

Step 2 / Quote

Quotes include all costs related to your project - tooling, prototype, piece part, production and project specific costs.

Step 3 / Design Review & Prototypes

Our engineering team reviews the design with you and makes any adjustments needed. Prototypes are built according to design specifications for testing.