Explosion-proof cable glands series KNVM (FETG) for non-armored cable in metal hoses

KNVM series cable glands with possibility to connect a flexible metal hose ensure explosion-proof sealing of cable outer sheath and environmental protection at the same time, excluding air circulation and ensuring reliable fastening of the metal hose. The structure of KNVM series cable gland comprises an adapter for direct connection of the metal hose thus eliminating the need to select it.

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 KNVM explosion-proof cable glands without additional unloading of cable.

KNVM series cable glands comprises dimension types with standard and increased ratio of diameter of crimped cable to inside diameter of the metal hose.

Increased wall thickness of bodies of GORELTEX cable glands considerably enhances their strength compared with cable glands of other manufacturers.

KNVM explosion-proof cable glands are suitable for use with equipment having ExnR marking.

Thanks to their design, KNVM 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 KNVM 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 – 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.

CERTIFICATES

Marking:

1Ex db IIC Gb
1Ex e IIC Gb
2Ex nR IIC Gc
Ex tb IIIC Db

Mining equipment marking:

РН1, РН2

Protection:

IP66/IP67/IP68/IP69
IK10

Certificates and permits:

ЕЭАС RU C-RU.AA87.B.00437/20

РОСС RU С-RU.МЮ62.В.00099/23

Maritime Register Type Approval Certificate №22.44.01.03371.120

TU 27.33.13-031-72453807-2017

GOST R ISO 9001-2015 (ISO 9001:2015)

KZ39VEH00005608

TECHNICAL DATA

Ambient temperature, °С:

-60...+185
-60...+130 (for "Exd" explosion protection)

Thread on connecting holes:

Code N taper inch NPT
Code M metric GOST 24705
Code R taper pipe GOST 6211-81
Code G pipe cylindrical GOST 6357-81

Material:

Nickel-plated brass resistant to vapor of hydrogen sulphide, hydrochloric acid and sea fog, NK code
Stainless steel grade 08Х18Н10 as per GOST 5632-2014 (AISI 304):N code

Climatic version:

NF1 (upon request NF2, NF3, NF4, NF5, F1, F2, F3, F5, T1, T2, T3, T5, MU1, MU2, MU3, MU4, W2.1, W5)

3D models:

Download

DIMENSIONS, OPTIONS, ACCESSORIES, ORDER CREATION

OVERALL AND MOUNTING DIMENSIONS

Explosion-proof cable glands KNVM, metric thread GOST 24705*

Cable gland dimension type		Thread	Dimensions, mm			Diameter of crimped cable	D, mm	d, mm	d1, mm	Thread pitch, mm	Metal hose name	Inside diameter of metal hose, mm	Mass, kg	all files
Main	Alternative		АС1	ØM	С
KNVM02М-10	FETG02I-10	M12x1,5	24	26	74	3-7	15	9	11,2	6	RZ-TSKH 10, MRPI 10	10	0,11
KNVM01М-10	FETG01I-10	M16x1,5	24	26	74	3-7	15	9	11,2	6	RZ-TSKH 10, MRPI 10	10	0,12
KNVM1М-12	FETG1I-12	M20x1,5	26	28,5	77	4-9	19,5	12	14,5	5	RZ-TSKH 12, MRPI 12	12	0,13
KNVM1М-15	FETG1I-15	M20x1,5	26	28,5	81,5	6-12	22	15	17,5	5	RZ-TSKH 15, MRPI 15	15	0,15
KNVM1М-15.../Р	FETG1I-15.../R	M20x1,5	26	28,5	81,5	3-12	22	15	17,5	5	RZ-TSKH 15, MRPI 15	15	0,15
KNVM1M-20	FETG1I-20	M20x1,5	26	28,5	81,5	6-12	28	20	23	6	RZ-TSKH 20, MRPI 20	20	0,17
KNVM1M-20.../Р	FETG1I-20.../R	M20x1,5	26	28,5	81,5	3-12	28	20	23	6	RZ-TSKH 20, MRPI 20	20	0,17
KNVM2М-20	FETG2I-20	M25x1,5	34	38	82	11-17	28	20	23	6	RZ-TSKH 20, MRPI 20	20	0,22
KNVM2М-20.../Р	FETG2I-20.../R	M25x1,5	34	38	82	6-17	28	20	23	6	RZ-TSKH 20, MRPI 20	20	0,22
KNVM2M-25	FETG2I-25	M25x1,5	34	38	82	11-17	32,5	24,5	27,5	6	RZ-TSKH 25, MRPI 25	25	0,25
KNVM2M-25.../Р	FETG2I-25.../R	M25x1,5	34	38	82	6-17	32,5	24,5	27,5	6	RZ-TSKH 25, MRPI 25	25	0,25
KNVM3М-25	FETG3I-25	M32x1,5	40	44,5	88,5	17-22	32,5	24,5	27,5	6	RZ-TSKH 25, MRPI 25	25	0,34
KNVM3М-25.../Р	FETG3I-25.../R	M32x1,5	40	44,5	88,5	12-22	32,5	24,5	27,5	6	RZ-TSKH 25, MRPI 25	25	0,34
KNVM3М-32	FETG3I-32	M32x1,5	40	44,5	88,5	17-22	43	32	36	11	RZ-TSKH 32, MRPI 32	32	0,38
KNVM3М-32.../Р	FETG3I-32.../R	M32x1,5	40	44,5	88,5	12-22	43	32	36	11	RZ-TSKH 32, MRPI 32	32	0,38
KNVM4М-32	FETG4I-32	M40x1,5	50	56	83,5	22-29	43	32	36	11	RZ-TSKH 32, MRPI 32	32	0,46
KNVM4М-32.../Р	FETG4I-32.../R	M40x1,5	50	56	83,5	16-29	43	32	36	10	RZ-TSKH 32, MRPI 32	32	0,46
KNVM4М-38	FETG4I-38	M40x1,5	50	56	83,5	22-29	49	38	42	11	RZ-TSKH 38, MRPI 38	38	0,5
KNVM4М-38.../Р	FETG4I-38.../R	M40x1,5	50	56	83,5	16-29	49	38	42	10	RZ-TSKH 38, MRPI 38	38	0,5
KNVM5М-50	FETG5I-50	M50x1,5	60	67	93,5	31-39	59	47	51	10	RZ-TSKH 50, MRPI 50	50	0,71

Explosion-proof cable glands KNVM, taper inch thread NPT*

Cable gland dimension type		Thread	Dimensions, mm			Diameter of crimped cable	D, mm	d, mm	d1, mm	Thread pitch, mm	Metal hose name	Inside diameter of metal hose, mm	Mass, kg	all files
Main	Alternative		АС1	ØM	С
KNVM02N-10	FETG02N-10	1/4"	24	26	74	3-7	15	9	11,2	6	RZ-TSKH 10, MRPI 10	10	0,11
KNVM01N-10	FETG01N-10	3/8"	24	26	74	3-7	15	9	11,2	6	RZ-TSKH 10, MRPI 10	10	0,12
KNVM1N-12	FETG1N-12	1/2"	26	28,5	78,5	4-9	19,5	12	14,5	5	RZ-TSKH 12, MRPI 12	12	0,16
KNVM1N-15	FETG1N-15	1/2"	26	28,5	83	6-12	22	15	17,5	5	RZ-TSKH 15, MRPI 15	15	0,16
KNVM1N-15.../Р	FETG1N-15.../R	1/2"	26	28,5	83	3-12	22	15	17,5	5	RZ-TSKH 15, MRPI 15	15	0,16
KNVM1N-20	FETG1N-20	1/2"	26	28,5	83	6-12	28	20	23	6	RZ-TSKH 20, MRPI 20	20	0,18
KNVM1N-20.../Р	FETG1N-20.../R	1/2"	26	28,5	83	3-12	28	20	23	6	RZ-TSKH 20, MRPI 20	20	0,18
KNVM2N-20	FETG2N-20	3/4"	34	38	83,5	11-17	28	20	23	6	RZ-TSKH 20, MRPI 20	20	0,24
KNVM2N-20.../Р	FETG2N-20.../R	3/4"	34	38	83,5	6-17	28	20	23	6	RZ-TSKH 20, MRPI 20	20	0,24
KNVM2N-25	FETG2N-25	3/4"	34	38	83,5	11-17	32,5	24,5	27,5	6	RZ-TSKH 25, MRPI 25	25	0,26
KNVM2N-25.../Р	FETG2N-25.../R	3/4"	34	38	83,5	6-17	32,5	24,5	27,5	6	RZ-TSKH 25, MRPI 25	25	0,26
KNVM3N-25	FETG3N-25	1"	40	44,5	94	17-22	32,5	24,5	27,5	6	RZ-TSKH 25, MRPI 25	25	0,37
KNVM3N-25../Р	FETG3N-25../R	1"	40	44,5	94	12-22	32,5	24,5	27,5	6	RZ-TSKH 25, MRPI 25	25	0,37
KNVM3N-32	FETG3N-32	1"	40	44,5	94	17-22	43	32	36	11	RZ-TSKH 32, MRPI 32	32	0,42
KNVM3N-32.../Р	FETG3N-32.../R	1"	40	44,5	94	12-22	43	32	36	11	RZ-TSKH 32, MRPI 32	32	0,42
KNVM4N-32	FETG4N-32	1 1/4"	50	56	89	22-29	43	32	36	11	RZ-TSKH 32, MRPI 32	32	0,53
KNVM4N-32.../Р	FETG4N-32.../R	1 1/4"	50	56	89	16-29	43	32	36	10	RZ-TSKH 32, MRPI 32	32	0,53
KNVM4N-38	FETG4N-38	1 1/4"	50	56	89	22-29	49	38	42	11	RZ-TSKH 38, MRPI 38	38	0,56
KNVM4N-38.../Р	FETG4N-38.../R	1 1/4"	50	56	89	16-29	49	38	42	10	RZ-TSKH 38, MRPI 38	38	0,56
KNVM5N-50	FETG5N-50	1 1/2"	60	67	100	31-39	59	47	51	10	RZ-TSKH 50, MRPI 50	50	0,71

* To connect the metal hoses of bigger inside diameter and/or with other diameter of crimped cable, it is required to use KNVTV (FETF) cable gland with RKN adapter.

АВТОМАТИЧЕСКОЕ ФОРМИРОВАНИЕ ЗАКАЗА

Diameter of crimped cable, mm:

Cable gland thread type M1:

-Thread type- Metric, GOST 24705 - M Taper pipe, GOST 6211–81 - R Taper inch, NPT - N Pipe cylindrical, GOST 6357–81 - G

Cable gland thread size:

Thread type for external connection:

-Thread type- Metric, GOST 24705 - M Taper pipe, GOST 6211–81 - R Taper inch, NPT - N Pipe cylindrical, GOST 6357–81 - G

Cable gland material:

-Material- Nickel-plated brass Stainless steel

Add connection adapter к M1:

Adapter connecting thread size:

Adapter material:

Nickel-plated brass Stainless steel Aluminium alloy

OPTIONS, ACCESSORIES AND VERSIONS

ORDER CREATION

Non-explosion-proof version

/PROM

Stainless steel grade 03Х17Н13М2 as per GOST 5632-2014 (316L)

/316L

Cap for additional protection of the cable gland

/ZK

Protective plug (for closing of unused cable gland)

/VZKV

Marine version

/MORE

Additional sealing ring for extension of the crimped cable diameter range

/R

Version for high temperatures

/TERMO

Chemical-resistant version X2 as per GOST R 51801-2011

/X2

External seal for ingress protection (IP) on thread (cylindrical and metric thread)

/UKF

Locknut (cylindrical and metric thread)

/KG

Grounding ring

/A31

Mine normal execution

/RN

FORMATION OF ORDER

KNVM		X		Х	-	Х		Х	/	Х	– TU 3400-007-72453807-07
											Cable gland type
											Dimension type
											Thread type: Taper inch NPT - N; Metric GOST 24705 - M; Taper pipe GOST 6211-81 - R; Pipe cylindrical GOST 6357-81 - G
											Inside diameter of metal hose, mm
											Material of cable gland: Nickel-plated brass - NK, Stainless steel - N
											Options, accessories and versions

Example:

KNVM1R-15NK-TU 3400-007-72453807-07
- Cable gland type: non-armored
- Connecting thread: taper pipe 1/2” GOST 6211-81
- Inside diameter of connected metal hose, mm: 15
- Material: nickel-plated brass

Example:

KNVM3N-25N-RU 3400-007-72453807-07
- Cable gland type: non-armored
- Connecting thread: 1" NPT
- Inside diameter of connected metal hose, mm: 25
- Material: stainless steel

CONFORMITY TO STANDARDS IN RUSSIA

GOST 14254-96 (IEC 529-89), GOST 30852.0-2002 (IEC 60079-0:1998), GOST 30852.1-2002 (IEC 60079-1:1998), GOST 30852.8-2002 (IEC 60079-0:1998), GOST 30852.10-2002 (IEC 60079-11:1999), GOST 30852.14-2002, GOST R IEC 60079-0-2011, GOST IEC 60079-1-2011, GOST 24754-2013, Ch. 7.3 PUE, Ch. 7.4 PUE, TR CU 004/2011, TR CU 012/2011