Isocyanate Gear Metering Pumps

Stainless steel gear metering pump for isocyanate is a positive‑displacement precision dosing pump customized for MDI, TDI and other polyurethane raw materials. Wetted parts are constructed of premium stainless steel with good chemical resistance. It delivers stable flow and accurate proportioning for moisture‑sensitive, easily‑crystallized isocyanate fluid in automatic PU production lines.

Main Features

Stainless steel wetted components, compatible with isocyanate media, keep fluid clean without contamination.

Positive‑displacement gear design provides steady low‑pulsation flow; servo or VFD drive is available for precise flow control.

Flexible seal options: packing seal, single or double mechanical seal, preventing leakage and moisture ingress to avoid material crystallization.

Jacketed heating/cooling structure is optional to maintain working temperature and prevent medium solidification.

Stable low‑noise performance for 24‑hour continuous running, compatible with PLC automatic control system.

Modular design for easy disassembly, cleaning and material changeover, less downtime for batch switching.

Application Fields

Polyurethane foaming machine, elastomer casting equipment, adhesive batching system, coating resin production, thermal insulation panel line, auto‑part foaming, composite material pouring process.

FAQ:

Q1: Can this pump transfer MDI / TDI?

A1: Yes, stainless steel wetted parts are suitable for isocyanate service. Jacket heating is recommended to avoid crystallization.

Q2: How to prevent isocyanate from reacting with moisture?

A2: We recommend double mechanical seal with barrier fluid to isolate air and moisture.

Q3: Can flow be automatically adjusted?

A3: Servo motor or frequency converter can be equipped for remote flow control via PLC.

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