7000 x Carmo 03‑305 HF/Ultrasonic Weldable Inflation Valve – Free‑Flow, Fixed Plug, 5 mm Inlet (PVC / PVC‑PUR) (Copy)

The Carmo 03‑305 Free‑Flow Inflation Valve is a high‑quality HF/ultrasonic weldable component designed to provide fast and efficient inflation and deflation for PVC and PVC/PUR inflatables. With its integrated 5 mm fixed plug, the valve delivers a true free‑flow configuration, allowing air to move quickly and easily through the inlet—ideal for products that require rapid setup, straightforward operation and consistent, repeatable performance. 

Both the material formulation and component geometry have been finely tuned for High‑Frequency (HF) welding, ensuring strong, dependable welds across flexible materials. The 03‑305 replaces the earlier 03‑160 model and offers improved weldability, better dimensional stability and an overall upgrade in production quality. 

Produced in Denmark using Carmo’s advanced injection‑moulding process, the valve combines long‑term durability with precise, reliable dimensions. Carmo maintains a strong focus on sustainability, manufacturing all components with respect for environmental impact and responsible material use. 

For best welding performance, the valve is compatible with Carmo’s dedicated HF electrode 07‑300‑0190, enabling secure bonding in both manual and automated HF welding setups. 

Available in PVC and PVC/PUR variants, this valve is widely chosen for applications such as:

• Inflatable leisure products
• Technical textile inflatables
• Industrial inflatables and flexible structures
• Marine, buoyancy and low‑pressure applications

If you’re manufacturing in volume, the Carmo 03‑305 bulk box, offers a dependable, cost‑effective and industry‑trusted inflation valve with excellent welding performance.