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Couplings type MK 2

MK (compensating coupling) - has an optimal set of technical, operational and economic indicators. It is recommended for using in the energy, oil and petrochemical industries. Allows using in hazardous and explosive fire-hazardous areas of class B-1a and B-1g according to the "Rules for the Installation of Electrical Installations", in which the formation of an explosive mixture of category IIA-T3 according to GOST 12.1.01-78.

MK Couplings have a "cartridge" (in other terms, "Cartridge") design, which provides easy installation and disassembly of the removable part and excludes contact of personnel directly with the package of elastic elements. Such a solution also makes it possible to eliminate the most common cause of sudden coupling failures - which is a personnel error in tightening tight fittings. The coupling provides the torque transmission after the emergency destruction of the elastic element as well as the protection from the spacer “overhang” and sparking due to the using of special bronze inserts. These design features comply with the requirements of the international standard API 671 / ISO 10441 (MSECM type).
- Complies with the requirements of the Technical Regulations of the Customs Union TRTS 012/2011 "Equipment safety for using in explosive atmospheres"

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Specifications

Coupling nominal size Rated transmit power, kW (at 1000 rpm) Nominal sizes, mm Rotation frequency, rpm, not more than Weight, kg, with no more than, when Smin
diameter length
dmax D Smin
MK2-17
MK2-34
MK2-67
MK2-105
MK2-270
MK2-420
MK2-670
MK2-1050
MK2-1340
MK2-1670
17
34
67
105
270
420
670
1050
1340
1670
50
70
85
85
90
120
140
160
170
200
100
125
152
152
180
220
255
290
305
355
80
100
120
120
140
160
180
200
180
200
5000
15000
13500
13500
12000
9000
7200
6000
4800
3600
9
11
16
17
30
50
73
105
145
180

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