CZF Series Marine Axial Flow Fans

1. Overview

The CZF series marine axial flow fan (hereinafter referred to as the fan) is a new type of energy-saving, low-noise fan. It is suitable for ventilation and air renewal on all types of ships, and for other suitable applications.

2. Features

The CZF series fan offers a compact structure, small size, light weight, low power consumption, reversibility, smooth running and a certain resistance to shock and vibration.

3. Structure

The fan impeller is cast in corrosion-resistant aluminium alloy and dynamically balanced, which gives good anti-corrosion performance and smooth, reliable running.

The fan casing is a welded steel-plate structure with a corrosion-resistant finish. Both the inlet and outlet ends of the casing are flanged so that they can be bolted to the inlet and outlet ducts. The casing can be made in a one-piece or an axially split design as required. In the split design the impeller and motor are mounted on the openable half-casing, which makes on-site inspection and replacement of parts easy.

The fan is built with the motor inside the casing and the impeller mounted directly on the motor shaft. The fan is reversible; reverse-flow capacity is about 60% of forward flow. When changing from forward to reverse running, the motor must be restarted only after the impeller has come to a standstill.

The fan can be fitted with 380 V, 50 Hz or 440 V, 60 Hz marine AC motors.