Valves and pumps play a crucial role in EV safety and performance. But, are yours ready to handle the heat?
By Weiss Technik UK
Valves and pumps are small components with a big responsibility, especially in electric vehicles where lightweight design is critical. In real-world conditions, these parts face extreme and rapidly changing temperatures, from freezing winter starts to the heat build-up of summer traffic jams. For EVs, battery and powertrain temperatures add further complexity, placing enormous strain on materials, seals and adhesives, which can lead to leaks, warping or even catastrophic failure.
That’s where heat testing comes in. By simulating the extreme temperature conditions your valves, pumps and adhesives will face in electric vehicles, you can identify potential weaknesses before they become costly failures. Heat testing ensures your parts remain leak-free, structurally sound and operationally reliable across the entire temperature range. It’s an essential step in protecting your customers, your brand reputation, and supporting the transition to safe, dependable e-mobility.
Why is heat testing essential for e-mobility?
✔️ Thermal expansion and contraction – dimensional changes risk leaks or pressure loss, particularly for lightweight polymers and composites.
✔️ Material fatigue and degradation – weakens structural integrity under continuous thermal cycling.
✔️ Temperature-dependent performance – viscosity, pressure, and flow vary with temperature, affecting pump and coolant circuit reliability.
✔️ Adhesive performance – adhesives must maintain strength and elasticity across -40°C to +100°C.
✔️ Electronic conductivity changes – affecting integrated sensors, actuators, and battery management electronics.
With the shift towards e-mobility, these challenges become even more demanding. Components must remain strong, leak-free, and operationally reliable across a wide temperature window while enduring mechanical stress.
At Weiss Technik UK, we help you recreate these environmental extremes to validate your valves, pumps, and electronic control systems with confidence. We will be exhibiting at the NEAA Expo 2025 and will be located at stand A17.















