FIVA/ELFI/ELVA AND HPS PUMPS

Zygos Maritime Services is exclusively representing Boeaman Technology Service in Greece. Boeaman is specialized on the maintenance of FIVA/ELFI/ELVA multiway valves and HPS Pumps of Electronically controlled Engines.
Zygos Maritime Services has managed to establish, the first test bench in Greece, able to calibrate all kinds of FIVA/ELFI/ELVA.
Our test bench is able to handle a big amount of FIVA/ELFI/ELVA Valves in only a few hours if same is requested by customers.
Repairs and/or routine maintenance include following scope of works for each of the components:
FIVA/ELFI/ELVA:
- Cleaning & Inspection of valve housing and main spool
- Separate testing of control/pilot valve and repair kit using original spare parts for FIVA.
- Calibration of feedback sensor.
- Calibration of mechanical center of the spool.
- Function Test at 250 bars: exhaust valve open/close, fuel injector open/close, leakages check
- Final work Report
HPS PUMPS
- Simulate engine running condition via control proportional valve during pump testing
- Carry out pump testing up to 750L/mins.capacity
- Calibrate inductive sensor and safety check
- Final Work Report – Graphic Display
- Applicable for pumps made by Bosch/Rexroth, Dynex and Parker
Following options are provided to the client:
- OH at workshop
- On exchange basis supply
- Straight purchasing of complete parts (FIVA/ELFI/ELVA and HPS Pumps)
- OH onboard for FIVA/ELFI/ELVA
A big stock of spare parts (OH Kits, Proportional Valves, complete FIVA/ELFI/ELVA, complete HPS Pumps) is available in stock to assist on urgent cases and on exchange-basis option.
Our Service Engineers at Greece, Singapore & Shanghai may proceed with maintenance works onboard as per following scope of work:
- Alpha Lubrication System check/OH
- FO Booster Units OH
- Exhaust Valve Actuators OH
- Accumulators OH and Nitrogen Refilling
- FIVA/ELFI/ELVA OH
- Tacho Encoder Check/OH
- Pneumatic System OH
- ECS Inspection



