Marine Triple Screw Pump

3G Series Marine Triple Screw Pump for Precision Fluid Transfer

Product Overview
The 3G Series Marine Triple Screw Pump represents advanced positive displacement rotary pump technology, available in standard industrial (3G), marine-grade (3GC), and custom-engineered configurations. These precision-engineered pumps feature a drive screw and two idler screws that rotate within precisely machined inset holes, creating multiple sealed chambers that transport fluid axially from inlet to outlet. This innovative design ensures smooth, continuous, and pulse-free delivery of lubricating fluids with consistent pressure progression. Ideal for handling various non-corrosive oils and lubricating liquids free from solid particles, the 3G series efficiently manages fluids with viscosities ranging from 3.0 to 760 cSt (1.2-100°E), with heated options available for higher viscosity applications.

Key Features & Benefits

Pulse-Free Flow Delivery: Axial fluid transport ensures continuous, non-pulsating output without agitation
Quiet Operation: Advanced screw design minimizes vibration and reduces noise levels
High-Pressure Capability: Delivers consistent performance at pressures from 0.6 to 2.5 MPa
Compact & Lightweight Design: Space-saving configuration with easy installation and maintenance
Extended Service Life: Precision manufacturing ensures minimal wear and long operational lifespan
High Efficiency Operation: Optimized screw geometry maximizes energy transfer and reduces power consumption
Versatile Application Range: Suitable for various lubricating fluids at temperatures up to 150°C

Technical Performance Specifications

Selected Models and Performance Data:

Model	Pressure (MPa)	Capacity (m³/h)	Speed (RPM)	Efficiency (%)	Motor Power (kW)
25×4-46	1.0	0.8	1450	62	0.75
	2.5	0.6	1450	60.6	1.5
30×4-46	1.0	1.6	1450	63.5	1.1
	2.5	1.2	1450	61	2.2
36×4-46	1.0	2.8	1450	66	2.2
	2.5	2.4	1450	66.5	4
42×4-46	1.0	4.8	1450	62	4
	2.5	4.2	1450	73	5.5
45×4-46	1.0	6.3	1450	70	3
	2.5	5.9	1450	74	7.5