Working Principles And Characteristics of Screw Dispensing Valve

In modern precision manufacturing, dispensing processes act like delicate “brushes,” directly impacting product quality and performance. When it comes to medium-to-high-viscosity fluids like hot melt adhesives and thermal pastes, traditional dispensing methods often fall short. This is where the Screw Dispensing Valve becomes an essential core component on the production line.

The screw dispensing valve is a positive displacement metering device. Its core working principle involves a precision screw (rotor) rotating within a stator, creating a fully sealed metering chamber. As the screw rotates continuously, it transports and dispenses high-viscosity fluids steadily, enabling a precise and continuous dispensing process. It is worth emphasizing that this metering method is highly stable and largely unaffected by changes in fluid viscosity.

The series of screw valves from HOLS are designed for high flexibility and reliability. They not only control the volume and shape of each dot with precision—achieving excellent coating results from fine dots to complex curves—but also support long-term, non-stop continuous operation, significantly boosting production line efficiency.

To meet diverse industrial needs, HOLS offers various models, including High-Flow Screw Valves (for scenarios requiring rapid dispensing), Micro Screw Valves (for high-precision micro-dot coating), and Two-Component Screw Valves (designed for applications requiring mixing of two materials). Furthermore, we understand that standard products may not meet every unique requirement. Therefore, we also provide tailored solutions—from adapting to specific fluid characteristics to optimizing dispensing paths—to help customers achieve optimal production efficiency.

In summary, whether the goal is to enhance process precision or pursue production line flexibility and reliability, the screw dispensing valve is a high-performance solution worthy of trust. HOLS is committed to being your technological partner in exploring more efficient and precise dispensing solutions.