MMC D-CHK cargo bottom dryness test ruler used in accordance with: Regulations of the international maritime organization IMO on prevention of pollution and safety of oil tankers 1978, Resolution A.446 (XI) 4.4.4, for the function of the pump system, level measurement and dry inspection of the safe, the vessel must be equipped with means to check the dryness of the safe after conducting the cleaning birth safe. The layout of the equipment must be suitable for manually checking the rear steering position in the safe and in 3 other suitable locations, unless there is an acceptable device installed to effectively check the drying inside the container. Therefore, the simplest measure to check the dryness of the safe is to use a stainless steel ruler wire, which has a heavy head by turning the ribbon for the ruler to the bottom of the safe and reading the remaining oil level on the ruler wire.
What types of MMC D-CHK basement bottom dryness test rulers
The safety checker is attached to the vapor blocking valve to ensure that the rust of the inert gas inside the cargo cellar escapes and cools, ensuring fire resistance due to the static accumulation after cleaning the container.
- Model. “D’CHK-F”: suitable for use with blocking valves of type “C-50”, “F-100” and “D-25”.
- Model. “D’CHK-A”: suitable for blocking valves type “G65K80” & “A”
- Model. “D’CHK-NF”: suitable for use with blocking valves of type “ANK-52” & “ANK-52F”
- Model. “D’CHK-FW”: suitable for “C-50”, “F-100” and “D-25” type stoppers
EN: Tank bottom dryness checking [Hand dipping] device
The IMO requirement on Tanker Safety and Pollution Prevention, 1978 – Resolution A.446 (XI) 4.4.4. states ” Means such as level gauges, hand dipping, and stripping system performance gauges as referred to in paragraph 4.4.8. shall be provided for checking that the bottoms of cargo tanks are dry after the Crude Oil Washing. Suitable Arrangements for hand dipping must be provided at the aftermost portion of a cargo tank and in three (3) other suitable locations unless other approved means are fitted for efficiently ascertaining that the bottom of every cargo tank is dry.”
So the simplest method for checking dryness of tank bottom is to lower a Dipping Scale suspended from the graduated stainless steel tape constructed in the Reel Device to the tank bottom and read-out the level adhered to remain oil on the Dipping Scale.
Portable Tank Bottom Dryness Checking Device is constructed basically to be coupled with Tank Gauging Station (Vapor Locks) to permit releasing only minimized inert gas from tanks in accordance with “CLOSED” requirements and GROUNDING of the device in order to avoid explosion due to accumulation of static electricity after tank washing.