Solenoids for use in Hazardous Locations

A manufacturer wanted its heavy-duty fluid sprayers to automatically stop pumping when they lost fluid. The solution needed to take precautions against fire and explosion.

Customer Problem

When a pump in a fluid handling system loses liquid, it can overspeed. The resulting damage can greatly reduce the life of the pump. A manufacturer wanted to eliminate this issue in their heavy-duty fluid sprayers by automatically stopping the pump when it lost fluid. Since the sprayer could be used in hazardous locations, the solution needed to take precautions against fire and explosion.

The TLX Solution

TLX Technologies created an intrinsically safe high-speed latching solenoid. When the solenoid’s electronic controls sense the pump is about to enter an overspeed condition, the solenoid plunger will immediately extend, stopping the pump so that no damage can occur. The solenoid’s circuitry is protected, making it safe for use in hazardous conditions.

View Design Solution

Intrinsically Safe Latching Solenoid

Stroke: 3.05 mm

Supply voltage: 6, 12 or 24 Vdc

Response time: 17-26 ms

Operating temperature range: -40°C to 60°C

Operating voltage: 6.8-7.8 Vdc

Coil resistance at 20°C: 13.0 ± .5 Ω

Inductance @ 1 kHz: 26 mH max

Net spring preload: 2.9 N min

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.

Working with TLX

Experienced partner of industry leaders, first-tier suppliers, and OEMs
Direct access to our design and engineering team
Localized production in USA and China
Dependable single-source solution from design to delivery

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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.

Step 4 / Testing

Prototypes are tested according to your specifications, with all relevant test data provided to you for evaluation.

Step 5 / APQP

DFMEA’s, PFMEA’s, control plans and process flow diagrams are started to drive the product intent design.

Step 6 / Pre-Production

Working drawings are developed for production. A second prototype build and a set of production parts are made from tooling and thoroughly tested.

Step 7 / PPAP/Production

The final design along with the PPAP (Production Part Approval Process) is developed and the new product enters production.

Step 8 / Ongoing Improvements

Our team collaborates with you to continue making improvements to the product to best meet your needs, increasing efficiency and reducing cost.

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