Marine Diaphragm Pump

Overview

Marine diaphragm pumps deliver leak-free, corrosion-resistant positive displacement for viscous, abrasive, and hazardous fluids. With ATEX Zone 1 compliance and pneumatic/hydraulic drive options, they excel in chemical cargo transfer, wastewater handling, and fuel additive injection systems, fully compliant with MARPOL Annex II and ISO standards.

Working Principle

Reciprocating Diaphragm Action:Pneumatic/hydraulic actuator moves diaphragm to create volume displacement.

Suction Phase: Diaphragm retracts, creating vacuum to draw fluid.

Discharge Phase: Diaphragm extends, forcing fluid through check valves.

Zero Leakage: Diaphragm fully isolates fluid from drive components.

Applications

(1)Chemical Cargo Transfer

    Media: H2SO4, NaOH, acetone

    Capacity: 1-50m³/h @ ≤1.6MPa

(2)Oily Wastewater Transfer

    Media: 20% solids bilge waste

    Requirements: 6m self-priming

(3)Fuel Additive Dosing

    Media: 10,000cP lubricity additives

    Precision: ±2% metering accuracy

Certification

DNV/ABS/LR/CCS/BV.Etc.

Drawing