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PES

PES

Product catalog summary

Overview: The document describes the JOWA - PES (Propeller Shaft Earthing System), a high-efficiency system designed to protect against spark erosion between dissimilar materials, such as a bronze propeller and a steel hull, when immersed in seawater.

Main Features:

High-efficiency slip ring with inserted solid silver track and silver contact brushes.
Remote voltage monitoring system with adjustable alarm output.
Continuous cleaning device to maintain the cleanliness of the shaft earthing ring.

Protection Mechanism: The JOWA - PES system protects exposed propellers and bearings from galvanic or spark erosion damages. It ensures a short circuit between the rotating propeller shaft and the ship's hull using silver-tracked slip rings and proven contact brushes.

Monitoring and Maintenance: The system's effectiveness must be continuously monitored to ensure propeller protection. A voltage meter provides constant monitoring of the system's condition, with an output signal to an alarm system. Continuous contamination of the silver surface can increase the risk of spark erosion due to poor contact. The Continuous Slipring Cleaning Device prevents an increase in residual potential, maintaining the JOWA - PES in a safe condition over time.

Company Information: JOWA has been a trusted supplier of technical environmental protection equipment to the shipping industry for many decades, offering services for installation supervision, operation, monitoring, and control of their equipment. They have a global presence with offices in Sweden, Norway, Germany, the Netherlands, USA, Singapore, China, and South Korea.

Catalog excerpts

EARTHING SYSTEM The high efficient JOWA - PES provides best protection against spark erosion, generated between dissimilar materials of rotating propeller (made of bronze) and steel hull being immersed in sea water. website: www.jowa.com e-mail: [email protected] website: www.jowa.no e-mail: [email protected] JOWA GERMANY GMBH website: www.jowa.de e-mail: [email protected] website: www.jowa-holland.nl e-mail: [email protected] website: www.jowa-usa.com e-mail: [email protected] 93 Lorong N Telok Kurau #05-04 website: www.jowa.sg e-mail: [email protected] JOWA (Shanghai) Marine e-mail: [email protected] JOWA (Shaoxing) Enviroment Paojiang Industrial Estate Korea (South) 1650-6, Song Jung Dong South Korea website: www.jowakorea.kr e-mail: [email protected]

Open the catalog to page 1

Main Features » high efficient slip ring with inserted solid silver track and silver contact » remote voltage monitoring system with adjustable alarm output » continous cleaning device to keep shaft earthing ring clean all the time JOWA - PES protects the exposed propeller and bearings against galvanic or spark erosion damages. High efficiency silver tracked sliprings and proven contact brushes ensure a short circuit between the rotating propeller shaft and the ship's hull. The effectiveness of JOWA - PES must continuously be controlled to keep the propeller protected. The voltage meter monitors...

Open the catalog to page 2

PES

PES

Catalog excerpts

All JOWA AB catalogs and brochures