Nipple-barrier series RKNN-ZK (NPS) with two threaded joints

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Nipple-barrier series RKNN-ZK (NPS) with two threaded jointsPURPOSE AND SCOPE OF APPLICATION

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.

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CONFORMITY TO STANDARDS IN RUSSIA
ГОСТ 30852.0-2002 (МЭК 60079-0:1998), ГОСТ 30852.1-2002 (МЭК 60079-1:1998), ГОСТ Р 30852.20-2002, ГОСТ 14254-96 (МЭК 529-89), Гл. 7.3 ПУЭ, Гл. 7.4 ПУЭ, ТР ТС 012/2011
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CERTIFICATES
Маркировка взрывозащиты Marking:
Ex db IIC Gb U
Ex tb IIIC Db U
Mining equipment marking:
Ex db I Mb U
Protection:
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TECHNICAL DATA
Ambient temperature, °С:
-75...+150
Material:
Nickel-plated brass code NK
Galvanized steel code О
Stainless steel grade 08Х18Н10 as per GOST 5632-2014 (AISI 304) code N
Filling:
Climatic version:
NF1 (upon request NF2, NF3, NF4, NF5, F1, F2, F3, F5, T1, T2, T3, T5, MU1, MU2, MU3, MU4, W2.1, W5)
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DIMENSIONS, OPTIONS, ACCESSORIES
MARKING
Marine version
/MORE
Locknut (cylindrical and metric thread)
/KG
Anaerobic sealant PG-REZBA-G
/PG-REZBA-G
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OVERALL AND MOUNTING DIMENSIONS

Ниппель-барьер серии РКНН-ЗК

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
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FORMATION OF MARKING
RKNN-ZK  -  X   X ( X x Х ) Х  – TU 3400-007-72453807-07
                      Type of the element
                      Diameter
                      Material
                      Number of wires
                      Cross-section of the wires
                      Length of free wire ends, dm

EXAMPLE: RKNN-ZK-10O(3x2,5)2- TU 3400-007-72453807-07

Non-standard nipple-barriers can be produced as per customer‘s layout

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