"> DESMI DESMI ROTAN PD Series
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DESMI

DESMI ROTAN PD Series

DESMI DESMI ROTAN PD Series is a positive-displacement marine gear pump. It is normally installed in fuel, lubricating-oil, hydraulic or transfer systems where controlled flow of relatively viscous liquid is required. Its primary purpose is to move liquid by trapping and carrying fluid between rotating gear teeth and the pump casing. Compared with centrifugal pumps, a gear pump develops flow largely in proportion to speed and requires dependable relief protection against a blocked discharge. The supplied record already contains the available concise model or rating information, so those existing figures are not duplicated here and no additional meaning is inferred from the model code. For exact ratings, dimensions, settings, capacities, materials and variant-specific limits, refer to the manufacturer documentation for the exact figure.

Components & Design

Component data being added…

Technical Data

pump type gear

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Common failures & inspection points

Gear or housing wear increases internal leakage and causes reduced capacity or inability to build pressure
Seal or shaft wear causes visible leakage and suction-side air ingress
Bearing or coupling wear causes abnormal noise, vibration or shaft misalignment
Contaminated or abrasive liquid scores gears and casing and accelerates loss of efficiency
Relief-valve sticking or incorrect operation causes unstable pressure, overheating or dangerous overpressure

Service & Maintenance

Inspect seals, bearings, coupling, relief valve, suction strainer and leakage. Listen for unusual gear noise and check for air ingress on the suction side. Keep the pump filled with compatible liquid and avoid running dry. Exact end clearances and relief settings require manufacturer documentation.

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Replacement Parts

Carry shaft seals, bearings, coupling elements, relief-valve parts, gaskets and gear or complete pump assemblies for critical services.
Equipment Model #76440 · ✓ still in production