Gear Pump · Pumps
DESMI ROTAN HD 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. For exact ratings, dimensions, settings, capacities, materials and variant-specific limits, refer to the manufacturer documentation for the exact figure.
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What our service work and the manufacturer documentation say about keeping this model running.
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.
Carry shaft seals, bearings, coupling elements, relief-valve parts, gaskets and gear or complete pump assemblies for critical services.
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