Explosion-proof cable glands KNVTV (FETF) for non-armored cable in hoses, conduits, metal hoses; inner thread for external connection

Explosion-proof cable glands KNVTV (FETF) for non-armored cable in hoses, conduits, metal hoses are used in areas, where explosion-proof sealing on the cable sheath is required, they protect the cable against accidental pulling out. The distinct feature of explosion-proof cable glands KNVTV is the inner thread for external connection, which helps to connect flexible hoses, conduits, corrugated metal hoses, etc.

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 KOVTVL series explosion-proof cable glands without additional unloading of cable.

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

KNVTV cable glands may be used for direct insertion as a part of fireproof enclosures of IIA, IIB+H2, IIC subgroups, which have the volume exceeding 2000 cm3.

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

Thanks to their design, KNVTV explosion-proof cable glands ensure cable unloading. These cable glands ensure 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 KNVTV 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
1Ex db IIC Gb X*
1Ex e IIC Gb X*
2Ex nR IIC Gc X*
Ex tb IIIC Db X*
*условия указаны в руководстве по эксплуатации *conditions are specified in the operating instructions

Mining equipment marking:

РН1, РН2

Protection:

IP66/IP67/IP68/IP69
IK08

Certificates and permits:

ЕЭАС RU C-RU.AA87.B.00437/20

IECEx CCVE 17.0004X

EESF 19 ATEX 023X

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: 1Ex d IIC Gb)

Thread on connecting holes:

Code M metric GOST 24705
Code N taper inch NPT
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, code NK
Stainless steel grade 08Х18Н10 as per GOST 5632-2014 (AISI 304), codeN

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

KNVTV01, KNVTV1, KNVTV2, KNVTV3, KNVTV4, KNVTV5, KNVTV6

KNVTV7, KNVTV17, KNVTV8, KNVTV81

Explosion-proof cable glands KNVTV, metric thread GOST 24705

Cable gland dimension type		Thread	Dimensions, mm					Diameter of crimped cable, mm	Mass, kg	all files
Main	Alternative		АС1	АС2	АС3	ØМ	С
KNVTV02M	FETF02I	M12x1,5	24	24	-	26	67	3-7	0,12
KNVTV01M	FETF01M	M16x1,5	24	24	-	26	67	3-8	0,116
KNVTV1M	FETF1I	M20x1,5	26	27	24	28,5	82,5	6-12	0,21
KNVTV1M.../Р	FETF1I.../R	M20x1,5	26	27	24	28,5	82,5	3-12	0,21
KNVTV2M	FETF2I	M25x1,5	34	35	28	38	88,5	12-18	0,32
KNVTV2M.../Р	FETF2I.../R	M25x1,5	34	35	28	38	88,5	6-18	0,32
KNVTV3M	FETF3I	M32x1,5	40	40	36	44,5	93,5	18-25	0,351
KNVTV3M.../Р	FETF3I.../R	M32x1,5	40	40	36	44,5	93,5	12-25	0,351
KNVTV4M	FETF4I	M40x1,5	50	50	45	56	90	25-31	0,525
KNVTV4M.../Р	FETF4I.../R	M40x1,5	50	50	45	56	90	18-31	0,525
KNVTV5M	FETF5I	M50x1,5	57	60	54	67	98,5	31-39	0,761
KNVTV6M	FETF6I	M63x1,5	68	70	67	77	105,5	39-47	1,169
KNVTV7М	FETF7I	M75x1,5	86	92	-	100	92,5	47-55	1,846
KNVTV71М	FETF71I	M75x1,5	86	92	-	100	92,5	55-63	1,5
KNVTV8М	FETF8I	M90x1,5	102	108	-	120	96,5	63-71	2,408
KNVTV81М	FETFS8I	M90x1,5	102	108	-	120	96,5	71-79	1,902

Explosion-proof cable glands KNVTV, taper inch thread NPT

Cable gland dimension type		Thread	Dimensions, mm					Diameter of crimped cable, mm	Mass, kg
Main	Alternative		АС1	АС2	АС3	ØМ	С
KNVTV02N	FETF02N	1/4"	24	24	-	26	66,5	3-7	0,12
KNVTV01N	FETF01N	3/8"	24	24	-	26	66,5	3-8	0,121
KNVTV1N	FETF1N	1/2"	26	27	26	28,5	84	6-12	0,23
KNVTV1N.../P	FETF1N.../R	1/2"	26	27	26	28,5	84	3-12	0,23
KNVTV2N	FETF2N	3/4"	34	35	34	38	91,5	12-18	0,35
KNVTV2N.../Р	FETF2N.../R	3/4"	34	35	34	38	91,5	6-18	0,35
KNVTV3N	FETF3N	1"	40	40	40	44,5	103	18-25	0,445
KNVTV3N.../Р	FETF3N.../R	1"	40	40	40	44,5	103	12-25	0,445
KNVTV4N	FETF4N	1 1/4"	50	50	50	56	103	25-31	0,698
KNVTV4N.../Р	FETF4N.../R	1 1/4"	50	50	50	56	103	18-31	0,698
KNVTV5N	FETF5N	1 1/2"	57	60	53	67	110	31-39	0,812
KNVTV6N	FETF6N	2"	68	70	66	77	114	39-47	1,258
KNVTV7N	FETF7N	2 1/2"	86	92	-	100	110	47-55	1,93
KNVTV71N	FETF71N	2 1/2"	86	92	-	100	110	55-63	1,6
KNVTV8N	FETF8N	3"	102	108	-	120	115	63-71	2,5
KNVTV81N	FETFS8N	3"	102	108	-	120	115	71-79	2

Adapter RKN made of galvanized steel for connection of non-explosion-proof corrugated metal hose.*

RKN type	Name of metal hose	Inside diameter of metal hose, mm	Diameter of KNVTV external connection thread, G cylindrical pipe thread GOST 6357-81
RKN12	RZ-TSKH-12, MRPI-12	12	1/2"
RKN15	RZ-TSKH-15, MRPI-15	15	1/2"
RKN16НК	GERDA-MG-16	16	1/2"
RKN20+AB-2GВ-1GН	RZ-TSKH-20, MRPI-20	20	1/2"
RKN20	RZ-TSKH-20, MRPI-20	20	3/4"
RKN22НК	GERDA-MG-22	22	3/4"
RKN25+AB-3GВ-2GН	RZ-TSKH-25, MRPI-25	25	3/4"
RKN25	RZ-TSKH-25, MRPI-25	25	1"
RKN25НК	GERDA-MG-25	25	1"
RKN32+AB-4GВ-3GН	RZ-TSKH-32, MRPI-32	32	1"
RKN32	RZ-TSKH-32, MRPI-32	32	1 1/4"
RKN35НК	GERDA-MG-35	35	1 1/4"
RKN38+AB-5GВ-4GН	RZ-TSKH-38, MRPI-38	38	1 1/4"
RKN38	RZ-TSKH-38, MRPI-38	38	1 1/2"
RKN40НК	GERDA-MG-40	40	1 1/2"
RKN50+AB-6GВ-5GН	RZ-TSKH-50, MRPI-50	50	1 1/2"
RKN50	RZ-TSKH-50, MRPI-50	50	2"
RKN60+AB-7GВ-6GН	RZ-TSKH-60, MRPI-60	60	2"
RKN60	RZ-TSKH-60, MRPI-60	60	2 1/2"
RKN75+AB-8GВ-7GН	RZ-TSKH-75, MRPI-75	75	2 1/2"
RKN75	RZ-TSKH-75, MRPI-75	75	3"

* In order to connect the metal hoses with different combination of inside diameter and diameter of crimped cable, it is required to use other size of AV 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

Mine normal execution

/RN

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

FORMATION OF ORDER

KNVTV	X	Х	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
								Dimension type for outer connection thread*
								Type of thread for outer connection thread**: Taper pipe NPT - N; Metric GOST 24705 - M; Taper pipe GOST 6211-81 - R; Pipe cylindrical GOST 6357-81 - G
								Cable gland material: Nickel-plated brass - NK, Stainless steel - N
								Options, accessories and versions

* Code of dimension type for outer thread shall not be indicated if the thread coincides with the inner one.

**Code of type for outer thread shall not be indicated if the thread coincides with the inner one.

Example:

KNVTV1М2GНК -TU 3400-007-72453807-07
- Cable type: non-armored (inner thread)
- Thread: M20x15 metric ISO965
- Outlet thread: 3/4" pipe cylindrical GOST 6357-81 G
- Material: nickel-plated brass

Example:

KNVTV1МGНК -TU3400-007-72453807-07
- Cable type: non-armored (inner thread)
- Thread: M20x15 metric ISO965
- Outlet thread: 1/2" pipe cylindrical GOST 6357-81 G
- Material: nickel-plated brass

CONFORMITY TO STANDARDS IN RUSSIA

TR CU 012/2011, TR CU 004/2011, GOST 14254-96 (IEC 529-89), GOST 30852.8-2002 (IEC 60079-0:1998), GOST 30852.14-2002, GOST 30852.10-2002 (IEC 60079-11:1999), GOST R IEC 60079-0-2011, RD 5.2-093-2004, GOST IEC 60079-1-2011, Ch. 7.3 PUE, Ch. 7.4 PUE