Seeflex Gauge Installation, Operating and Maintenance Instructions. Issue 4. 17.03.2008. G31INS
PAGE 1 OF 24
SEETRU LTD.
ALBION DOCKSIDE WORKS, HANOVER PLACE, BRISTOL BS1 6UT. ENGLAND.
TEL. 0117 927 9204. FAX 0117 929 8193.
INSTALLATION OPERATING &
MAINTENANCE INSTRUCTIONS
NATIONAL
ACCREDITATION
OF CERTIFICATION
BODIES
GENERAL DESCRIPTION.
The Seetru Marine Gauge - Seeflex model has been developed to comply with the requirements of SOLAS
chapter 11-2 regulation 15. The gauge has been reviewed and in a suitable construction is accepted by marine
classification authorities throughout the world.
The Seetru Seeflex gauge is a direct reading liquid level gauge which is mounted on the outside face of a tank. It
consists of one or more sections of Reflex glass and one or more valves. The Reflex glass enables clear liquids to
be easily read. The valve(s) control the flow of liquid from the tank to the gauge. To read the tank level, the
valve(s) must be opened, this allows the contents of the tank to transfer to the gauge. When the level has
stabilised and the reading taken, the valve(s) are closed this isolates the tank contents from the gauge.
Seetru push-button operated, self-closing isolating valves have been used on marine installations for many years.
The Seeflex gauge incorporates this well-proven design, which provides full safety in preventing liquid loss from
the tank. The tank will remain sealed by the self closing valve even if the gauge column is totally destroyed. This
is acheived by placing the sealing system at the back of the valve, which is protected by the tank boss inside the
tank.
Note: Except where otherwise specified the term 'valve', when used in this document, refers to a push button, self
closing valve.
A tank boss is supplied with each isolating valve. The standard boss is suitable for welding to the tank, but
bosses for non-weld installation are available,
This equipment may be fitted with a hydraulic actuation system which may be required by certain classification
authorities.
Technical specification.
Maximum working pressure = 2.67 bar
Maximum working temperature temperature with hydraulic actuation = 80 °C
Maximum working temperature temperature without hydraulic actuation = 88 °C
Note: These are the maximum working limitations of the gauge. Classification authorites or operating conditions
may require lower working limits.