PURPOSE AND SCOPE OF APPLICATIONKNV explosion-proof cable glands for non-armored cable are used to secure the cable against accidental pulling out, used in places where explosion-proof cable glands with IP 66/67/68 are required.
The most important development is the use of one sealing ring for the whole range of diameters of crimped cable, which reliably crimps the incoming cable and ensures Exd type of protection. One sealing ring together with mandrel or cable withstand the force in newtons, which is equal to the twentyfold diameter value (in mm) of the mandrel or the cable. This helps to use KNV series explosion-proof cable glands without additional unloading of cable.
Increased wall thickness of the enclosures of GORELTEX cable glands considerably enhances their strength campared with cable glands of other manufacturers.
KNV explosion-proof cable glands may be used for cables with operating voltage over 3.3 kV.
KNV cable glands may be used for armored/braided cables. Sealing and earthing of braid is performed outside the cable gland. Internal cable sheath is to be inserted into cable gland. A32 earthing element is used to ensure earthing circuit continuity with metal enclosure and protection against electromagnetic disturbances.
Thanks to their design, KNV explosion-proof cable glands ensure cable unloading, protection against pulling out without causing damage to the structure of cable sheath and conductors, as well as prevent cable overcompression.
Explosion-proof cable glands of KNV series are designed in Russia (Patent No. 155936, rightholder "ZAVOD GORELTEX" Co. Ltd. , operating characteristics of which significantly surpass Russian and foreign analogues.
Scope of application – underground mines and pits hazardous with gas (methane), coal dust; outdoor and indoor hazardous areas as per explosion protection marking, GOST 30852.13-2002 (IEC 60079-14:1996), dangerous production facilities of I, II, III, IV hazard class supervised by Rostechnadzor of the RF and national technical supervision bodies of the Customs Union and CIS countries.
Marking:
1Ex db IIC Gb 1Ex e IIC Gb Ex tb IIIC Db 1Ex db IIC Gb X* 1Ex e IIC Gb X* Ex tb IIIC Db X* РВ Ex db I Mb РП Ex e I Mc
| Cable gland dimension type | Thread | Dimensions, mm | Diameter of crimped cable, mm | Mass, kg | ||||
| Main | Alternative | АС1 | АС2 | ØМ | С | |||
| KNV02M | FEC02I | М12х1,5 | 24 | 24 | 26 | 55,5 | 3-7 | 0,098 |
| KNV01M | FEC01I | M16х1,5 | 24 | 24 | 26 | 55,5 | 3-8 | 0,108 |
| KNV1M | FEC1I | M20x1,5 | 26 | 26 | 28,5 | 53,5 | 6-12 | 0,115 |
| KNV1M.../Р | FEC1I.../R | M20x1,5 | 26 | 26 | 28,5 | 53,5 | 3-12 | 0,115 |
| KNV1M.../PR30 | FEC1I.../PR30 | M20x1,5 | 26 | 26 | 28,5 | 67,5 | 6-12 | 0,141 |
| KNV2M | FEC2I | M25x1,5 | 34 | 34 | 38 | 59,5 | 12-18 | 0,194 |
| KNV2M.../Р | FEC2I.../R | M25x1,5 | 34 | 34 | 38 | 59,5 | 6-18 | 0,194 |
| KNV2M.../PR30 | FEC2I.../PR30 | M25x1,5 | 34 | 34 | 38 | 73,5 | 12-18 | 0,232 |
| KNV3M | FEC3I | M32x1,5 | 40 | 40 | 44,5 | 71 | 18-25 | 0,26 |
| KNV3M.../P | FEC3I.../R | M32x1,5 | 40 | 40 | 44,5 | 71 | 12-25 | 0,26 |
| KNV3M.../PR30 | FEC3I.../PR30 | M32x1,5 | 40 | 40 | 44,5 | 78,5 | 18-25 | 0,304 |
| KNV4M | FEC4I | M40x1,5 | 50 | 50 | 56 | 67,5 | 25-31 | 0,39 |
| KNV4M.../Р | FEC4I.../R | M40x1,5 | 50 | 50 | 56 | 67,5 | 18-31 | 0,39 |
| KNV4M.../PR30 | FEC4I.../PR30 | M40x1,5 | 50 | 50 | 56 | 75 | 25-31 | 0,448 |
| KNV5M | FEC5I | M50x1,5 | 57 | 60 | 67 | 71 | 31-39 | 0,544 |
| KNV5M.../PR30 | FEC5I.../PR30 | M50x1,5 | 57 | 60 | 67 | 78,5 | 31-39 | 0,645 |
| KNV6M | FEC6I | M63x1,5 | 68 | 70 | 77 | 78 | 39-47 | 0,883 |
| KNV7M | FEC7I | M75x1,5 | 80 | 75 | 88 | 81 | 47-55 | 1,047 |
| KNV71M | FECS7I | M75x1,5 | 82 | 78 | 90 | 85 | 55-63 | 0,892 |
| KNV8M | FEC8I | M90x1,5 | 95 | 90 | 105 | 84 | 63-71 | 1,324 |
| KNV81M | FECS8I | M90x1,5 | 102 | 98 | 110 | 87 | 71-79 | 1,319 |
| KNV10M | FEC10I | M100x1,5 | 115 | 110 | 122 | 93 | 79-87 | 1,867 |
| KNV101M | FECS10I | M100x1,5 | 120 | 115 | 128 | 103 | 84-92 | 2,15 |
| Cable gland dimension type | Thread | Dimensions, mm | Diameter of crimped cable, mm | Mass, kg | ||||
| Main | Alternative | АС1 | АС2 | ØМ | С | |||
| KNV02N | FEC02N | 1/4" | 24 | 24 | 26 | 56 | 3-7 | 0,1 |
| KNV01N | FEC01N | 3/8" | 24 | 24 | 26 | 56 | 3-8 | 0,117 |
| KNV1N | FEC1N | 1/2" | 26 | 26 | 28,5 | 56 | 6-12 | 0,127 |
| KNV1N.../P | FEC1N.../R | 1/2" | 26 | 26 | 28,5 | 56 | 3-12 | 0,127 |
| KNV2N | FEC2N | 3/4" | 34 | 34 | 38 | 62 | 12-18 | 0,219 |
| KNV2N.../P | FEC2N.../R | 3/4" | 34 | 34 | 38 | 62 | 6-18 | 0,219 |
| KNV3N | FEC3N | 1" | 40 | 40 | 44,5 | 71 | 18-25 | 0,297 |
| KNV3N.../P | FEC3N.../R | 1" | 40 | 40 | 44,5 | 71 | 12-25 | 0,297 |
| KNV4N | FEC4N | 1 1/4" | 50 | 50 | 56 | 67,5 | 25-31 | 0,445 |
| KNV4N.../P | FEC4N.../R | 1 1/4" | 50 | 50 | 56 | 67,5 | 18-31 | 0,445 |
| KNV5N | FEC5N | 1 1/2" | 57 | 60 | 67 | 72 | 31-39 | 0,561 |
| KNV6N | FEC6N | 2" | 68 | 70 | 77 | 81 | 39-47 | 0,922 |
| KNV7N | FEC7N | 2 1/2" | 80 | 75 | 88 | 90 | 47-55 | 1,277 |
| KNV71N | FECS7N | 2 1/2" | 82 | 78 | 90 | 93 | 55-63 | 1 |
| KNV8N | FEC8N | 3" | 95 | 90 | 105 | 93 | 63-71 | 1,612 |
| KNV81N | FECS8N | 3" | 102 | 98 | 110 | 95 | 71-79 | 1,47 |
| KNV10N | FEC10N | 4" | 115 | 110 | 122 | 105 | 79-87 | 2,56 |
| KNV101N | FECS10N | 4" | 120 | 115 | 128 | 111 | 84-92 | 2,88 |
| KNV | X | Х | Х | / | Х | – TU 3400-007-72453807-07 | |||
| Cable gland type | |||||||||
| Dimension type | |||||||||
| Type of thread: Taper inch NPT - N; Metric GOST 24705 - M; Taper pipe GOST 6211-81 - R; Pipe cylindrical GOST 6357-81 - G |
|||||||||
| Material of cable gland: Nickel-plated brass - NK, Stainless steel - N | |||||||||
| Options, accessories and versions |
