Isocyanate Gear Metering Pump

Isocyanate gear metering pump is a gear metering device designed for the characteristics of isocyanate medium (high reactivity, volatility, potential corrosiveness).

Its advantages are further optimized based on the inherent characteristics of the gear pump and the process requirements of isocyanate.

It is mainly reflected in the following aspects:

1. Stable metering accuracy, suitable for continuous production
Gear metering pumps utilize a pair of precisely meshed gears to form a volume chamber. The volume change caused by gear rotation enables medium delivery. Metering accuracy typically reaches within ±0.5%, and flow rate is unaffected by outlet pressure fluctuations. This makes them suitable for continuous mixing reactions of raw materials such as isocyanates and polyols (e.g., in the production of polyurethane elastomers and adhesives).

Compared to reciprocating equipment like plunger pumps, these pumps eliminate flow pulsation, reducing uneven mixing caused by unstable medium delivery and ensuring consistent product performance.

2. Compact Structure, Suitable for High-Viscosity Media
The gear pump's simple structure and small size allow installation in confined spaces, making it particularly suitable for compact production line layouts.

It has excellent conveying capacity for high-viscosity isocyanates (such as partially modified isocyanates), eliminating the need for additional boosters and enabling stable conveyance of media with a wide viscosity range (typically ranging from several hundred to tens of thousands of centipoise).

Isocyanate gear metering pumps lie in their continuous and stable metering capabilities, adaptability to high-viscosity media, and reliable sealing. They are suitable for isocyanate-related processes that are sensitive to flow pulsation and require long-term continuous operation (such as polyurethane coating and adhesive production).

They can improve product quality stability while ensuring production safety.

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