Explosion-proof equipment plant
Explosion-proof partition nipple-barriers are intended for the connection of flat or round electrical wires or optic cables between two enclosures of the explosion-proof equipment, usually between an Exd-enclosure and input Exe enclosure. Actual range of operating temperatures is determined by the applied type of the wires or a cable. More detailed information for certain types is provided upon request. Partition nipple-barriers could be manufactured with hook-up wires (conductor), with coaxial cables (coaxial), with optic cables (optic), with flat wires, with clamping screw (bolted) as per the order.
Upon customer‘s request, stranded gas migration preventing heat-resistant hook-up wires "ZAVOD GORELTEX" Co. Ltd. for partition fittings with completely encapsulated internal space.
Scope of application - underground mines and pits hazardous with gas (methane), coal dust; hazardous indoor and outdoor areas in accordance with explosion protection marking, GOST 30852.13-2002 (IEC 60079-14:1996) and areas hazardous with combustible dust ignition, as per GOST IEC 61241-3-2011, dangerous production facilities of I, II, III, IV hazard classes under supervision of Rostekhnadzor and national supervisory bodies of the CU and the CIS countries.
Marking:
Ex db IIC Gb U Ex tb IIIC Db U Ex db I Mb U
TU 27.33.13-031-72453807-2017
| Type of fitting |
Diameter, mm |
H, mm | L, mm | H, mm | AС, mm | S, mm |
| RKNN-ZK | 10 | 60 | 15 | 9 | 14 | 16,5 |
| 12 | 16 | 19 | ||||
| 16 | 20 | 23,5 | ||||
| 24 | 28 | 32,5 | ||||
| 25 | 30 | 34,5 | ||||
| 33 | 36 | 42 | ||||
| 36 | 40 | 46,5 | ||||
| 38 | 42 | 48,5 | ||||
| 42 | 45 | 52 |
| RKNN-ZK | - | X | X | ( | X | x | Х | ) | Х | – TU 3400-007-72453807-07 | |
| Type of the element |
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| Diameter | |||||||||||
| Material | |||||||||||
| Number of wires |
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| Cross-section of the wires |
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| Length of free wire ends, dm |
EXAMPLE: RKNN-ZK-10N(3x2.5)2-TU 27.33.13-031-72453807-2017
- Through bushing with two threaded external connections, sealed with compound,
- connection thread M10,
- material: stainless steel,
- 3 wires with a cross-section of 2.5 mm,
- length of the free ends of the wire is 2 decimeters.
Non-standard nipple-barriers can be manufactured according to the customer's specifications.
