Problems with formaldehyde and methanol transfer pumps
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Are there any actual cases of using IH stainless steel centrifugal pumps to transport methanol and formaldehyde? If so, what is the configuration of this pump? Waiting online.
Are there detailed operating conditions and pump parameters?
Typically at room temperature, up to 80 degrees.
It involves formaldehyde and methanol at different concentrations; the temperature ranges up to 80 degrees, usually at room temperature. The highest specific gravity is 1.2, and the inlet pressure does not exceed 0.1. The maximum outlet pressure is 1 MPa
Why is the specific gravity so high at this temperature?
No problem. When transporting formaldehyde, the key aspect for the pump is insulation to prevent the polymerization of formaldehyde; if necessary, an open impeller can be designed； Given the jacket and impeller design, the price is definitely higher than before any modifications were made
Does it still polymerize when methanol is added to formaldehyde?
Simply use a double-seal; the most reliable option is a single seal plus the 21 scheme. Pay attention to the material of the sealing ring, and use graphite-silicon carbide for the grinding surface