Marine Self-Closing Level Gauge | Direct & Fail-Safe Visual Indication

Technical Specifications：

Key Features：

• Automatic Leak Prevention: Integrated self-closing valves instantly shut off fluid flow if the glass is damaged.
• Power-Free Visual Reading: Provides a direct, real-time level indication at the tank without any need for electricity.
• Simple, Low-Maintenance Design: The mechanical construction has few moving parts, requiring minimal upkeep.
• Application-Specific Models: Choose the ULG glass tube for general water tanks or the robust ULB glass plate for oil tanks
  (flash point >65°C).

Applications：

• Fresh Water Tanks: For direct visual monitoring of potable and service water levels.
• Fuel Oil Service And Settling Tanks: Allows for local, at-a-glance checks of daily fuel supply.
• Lubricating Oil Storage Tanks: Used to confirm sufficient lubrication oil reserves for machinery.
• Bilge Water Holding Tanks: For monitoring collected wastewater levels before processing.

Installation & Maintenance：

Installation: Mount the unit directly to the tank’s upper and lower connections. Make sure the valves are oriented correctly for proper function.
Maintenance: Periodically clean the glass surface. Check the internal safety check balls to confirm they move freely.

Custom Options Available：

Need something specific?

We build units with non-standard installation lengths and various flange or thread types to match your existing tank connections.

FAQ ：

Q: What happens if the glass breaks?

A: The self-closing valves at the top and bottom will instantly and automatically shut. This prevents the tank’s contents from spilling out.

Q: Does it require any power to work?

A: No. The level indication and the safety self-closing function are both purely mechanical.