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Mendeleevets-MRV - anodes for internal protection

Mendeleevets-MRV
Included in the registers:
Included in the register of GAZPROM Included in the register of TRANSNEFT

Certification:

Certified in the EAC Certified in the INTERGAZCERT Certified in the Maritime Register of Shipping

Technical details

An internal anode grounding consists of MMO anodes Mendeleevets-MRV and is meant for installation in pipelines and tanks.

Installation of internal anodes is provided in tanks and on sites of pipelines with the constant level of electrolyte, and also in places of a liquid phase with low value of specific electric resistance.

Installation of anodes on internal surfaces of pipes and tanks needs to be carried out on the designs excluding any possibility of electric contact of anode grounding and the protected metal construction.

Installation of MMO anodes is made manually without use of any special equipment.

Free ends of connecting cables of internal anodes are brought out on the surface and connected to control equipment.

Cable joining isolation is made with thermocontracting materials.

Internal anode grounding

Technical data

Parameter nameValue
MRV-1,2MRV-1,5
Electrode diameter, mm 25 32 25 32
Maximum current densities, А/m2, no more than:
- in fresh water
- in sweet water

100
600
Anodic dissolution rate, kg/(A∙year), no more than 0,01
Maximum voltage, V 7,5
Dimensions of electrode working surface, mm:
length (height) x diameter
1050х25 1350х25
Assembled anode dimensions , mm, no more than:
length (height) x diameter
1300х145 1600х145
Assembled anode weight, kg, no more than 7 8 8 9
Service lifetime, years, no less than 30
100