Introduction
This document provides an overview of submersible electric pumps designed for bilge, fire fighting, and sea water applications. These pumps are particularly suitable for small or pleasure boats and are capable of handling grey water and other liquids with limited solid content.

Specifications
The pumps are available in various models with different dimensions and capacities:

• SUB 20: Dimensions: 160x110x110 mm, Weight: 2 kg
• SUB 37: Dimensions: 190x130x130 mm, Weight: 2.5 kg
• SUB 47: Dimensions: 290x180x180 mm, Weight: 6 kg
• SUB 47V: Dimensions: 350x230x230 mm, Weight: 7 kg

All models feature a techno polymer body and impeller, a stainless steel shaft, and a silicon carbide mechanical seal for corrosion resistance.

Performance
The pumps operate on DC 12-24V or AC 1~230V, with varying delivery rates and head capacities:

• SUB 20: Delivery: 115-10 l/min, Head: 1-5 m, Power: 0.10 kW, In-Out: Ø28 mm
• SUB 37: Delivery: 210-70 l/min, Head: 1-6 m, Power: 0.16 kW, In-Out: Ø38 mm
• SUB 47: Delivery: 175-30 l/min, Head: 2-7 m, Power: 0.18 kW, In-Out: 1”
• SUB 47V: Delivery: 145-30 l/min, Head: 2-7 m, Power: 0.18 kW, In-Out: 1¼”

Applications
These pumps are ideal for bilge service, food liquid handling, tank emptying, and pool drainage. They must be submerged in the liquid to function effectively.

Conclusion
For marine environments, these submersible pumps offer a reliable solution for managing water and other liquids, making them a preferred choice over domestic alternatives.