A Challenge to Durable Solenoid Design

TLX was approached with an application that called for a solenoid valve to operate while completely submerged in the hot automatic transmission fluid of an all-terrain vehicle...Easy right? Well, our engineers were up for the challenge.

Customer Problem

TLX is proud of the durability of our components and sometimes it seems like customers just want to test this pride....challenge accepted. We were approached with an application that called for a solenoid valve to operate while completely submerged in the hot, harsh automatic transmission fluid of an all-terrain vehicle (easy, right?).

The TLX Solution

Our engineers rose to the challenge and designed a component that would not only operate in this environment, but also met low-leakage requirements and operated over a variety of pressure ranges. Furthermore, TLX adapted a test stand to preheat transmission fluid, so that the solenoid valves could be tested to the customer's specific requirements.

View Design Solution

Three-Way Proportional Pressure Reducing-Relieving Valve

Supply voltage: 10-14 Vdc

Control current signal: 0-1.5 amp

Coil resistance at 20°C: 5.7 ± .05 Ω

Supply pressure: 175 ± 1.24 bar (175 ± 18 psi)

Flow rate @ 12.06 bar (175 psi): > 1.0 in 3 sec

Max operating temperature: 93°C fluid temperature

Flow rate (inlet to control): .75 gpm @ 12.06 bar (175 psi)

Fluid type: Automatic transmission fluid

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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