Mendeleevets- MRG / Mendeleevets- OPG
deep MMO anodes

Included in the registers:

Certification:

Application area

Deep MMO titanium groundbeds may be used for installation both in closed holes and in open ones (in such places where there is a static level of ground waters). Besides, this type of groundbeds can be used at reconstruction of overaged deep anode groundbeds (DAG) made from steel pipes.

Installation of MMO titanium anode groundbeds into the hole is made manually and do not require any additional works.

passing MMO titanium electrode;
end MMO titanium electrode;
cable

Technical details

There are two types of MMO titanium groundbeds: a chain and a garland.

МРГ, цепочка

The chain is five MMO titanium anodes joined by a connecting cable. The cable goes through the internal cavity of the electrode and has an electric contact with it. The anodes are at a certain distance from each other which is 1,7 or 3,4 m. The general length of the chain is equal to the length of the installation in a hole. Quantity of anodes in a chain may vary from one to five and it is mentioned in the order.

The garland is several chains of anodes in one hole, they are disposed one over another with definite distance which is mentioned in a project. Most often the garland consists of several chains from one MMO titanium anode.

If MMO titanium groundbeds are installed into closed holes the cokemineral activator (KMA) must be used to fulfill the hollow space around.

For open holes polymeric perforated pipes are used. The length of the installation in open holes is determined by a season minimal level of ground waters as the electrodes must be placed below the water level. Big advantage of the installation in the open holes is opportunity to carry out examination, repair and replacement of groundbeds in use.

In the construction of MMO titanium groundbeds a connecting cable is a carrying element of the construction and it is used in the installation of the groundbed into the hole. You can see the schemes of installation of the deep MMO titanium anodes Mendeleevets-MRG at the page 10, they are equal to the schemes of installation of magnetite anodes.

Installation in closed boreholes

passing MMO titanium electrode;
end MMO titanium electrode;
cable;
drainage aggregate (crushed stone, gravel, etc.);
KMA

Installation in open boreholes

MMO titanium electrode;
perforated plastic pipe;
cable;
the ground water level;
centralizer of pipe;
cable from CP station

Technical data

Parameter name	Mendeleevets-MRG TU 3435-031-24707490-2012		Mendeleevets-OPG TU 27.12.31-051-24707490-2021
	1,2×25	1,2×32	1,2×25	1,2×32
	Current load, A, no more than	8*	10*	8*	10*
Anodic dissolution rate, kg/(A∙year), no more than	0,01		0,01
Active surface area of electrode (working element), м2, no more than	0,08	0,1	0,08	0,1
Assembled anode dimensions , mm, no more than: - Length (height) - Diameter	1300* 31	1300* 38	1300* 31	1300* 38
Weight of the anode block assembly (excluding cable), kg, no more	1.3*	2.2*	1.3*	2.2*
Max quantity of groundbeds in a hole, pcs., no more than	No limits		No limits
Service lifetime, years, no less than	35		30
Certification:	INTERGAZSERT, TRANSNEFT		Is undergoing the INTERGAZSERT certification procedure
**The value is given for a chain of one poorly soluble anode. The chain length, the current load and the weight of a groundbed of several poorly soluble anodes are determined by a number of anodes in a chain..

Delivery set

NAME OF COMPONENTS	КОЛИЧЕСТВО
Set of anodes (the design, number and length of the cable are determined by the requirements of the Customer), set	1
Trunk (connecting) cable, м	(according to the order)
Operating documentation according to GOST R 2.601, set	1
Certified copy of certificate or declaration of compliance with technical regulations	1
Protocol of acceptance-testing, copy	1
Kit of materials and fittings for anodes, kit*	1 (as ordered)
Packing list, copy	1
* The kit is delivered according to the specifications of the cathodic protection project or in accordance with Customer’s requirements

Mendeleevets- MRG (TU 3435-031-24707490-2012, OKPD2 27.12.31.000)

6	MRG	(1,2x25xTi-5-1,7)	-	50	х	10	(PKZ-PvP)	-	50	х	16	(VVGng)	-	КZ	.	G
1		2		3		4	5		6		7	8		9		10
									included in the order if necessary

Number of anodes, pcs.;

LхdхM – Length (L, m) and diameter of electrodes (d, mm); substrate material (M);

Depth of the borehole, m;

Anode cable core section, mm²: 10, on request 16;

Anode cable type: PKZ-PvPp,
on request: PKZ-PvP, PKZ-FF-ng(A);

Length of the main cable, m;

Main cable core section, mm²: 10, 16, 25;

Main cable type: VVGng,
on request: PKZ PvP, PKZ-PvPp, PKZ-FF-ng(A), VPPO, VPP;

Cable joint kits:
cable clamps (KZ), thermit welding (TS), cable terminations (TM),
or their combinations (KZ+TM, TS+TM)

Package gas outlet tube (default is not included in delivery)

Mendeleevets- OPG (ТУ 3435-031-24707490-2012, OKPD2 27.12.31.000)

6	О	П	Г	(1,2х25хTi-5 3,4)	-	50	х	10	(PKZ-PvP)	-	200	х	16	(VVGng)	-	КZ	.	G
1	2	3	4	5		6		7	8		9		10	11		12		13
											included in the order if necessary

Number of anode groundbeds in the kit, pcs.: for standard anodes not more than 4, For block anodes not more than 20;

Material of the electrode (working element) of the anode: O (MMO);

Application conditions: P (underground);

Construction and ground arrangement: G (deep );

LхdхM – Length (L, m) and diameter of electrodes (d, mm); substrate material (M);
Number of electrodes in the groundbed (N – no more 5 pcs.) and the distance between the
centers of electrodes along the cable axis (S – 1,7; 3,4; 5 m or by agreement);

Length of cable for current conductor anode, m;

Anode cable core section, mm²: 10, 16, 25;