Explosion-proof limit switches series DVG-KV (PS)

DVG-KV explosion-proof limit switches are intended for switching electrical control, signaling and monitoring circuits and for control of moving parts of mechanisms under the impact of the controlling stops at the defined travel points of the controlled object.Limit switches are usually installed in places where movements of the mechanism or its moving part shall be stopped. Principle of operation of the limit switch is based on breaking the electrical power supply circuit of the mechanism in case of contact with the stopper. A large selection of switching mechanisms and various configurations of contacts are offered for all explosion-proof limit switches.

Possible application:
– protective switches
– reset switches
– devices for measurement or calculation of objects
– for determination of presence/absence
– for determination of bounds of travel (position)
– for determination of passage and calculation of objects

Explosion-proof limit switches DVG-KV are perfectly suitable for application in the potentially hazardous areas, as they are compact, multi-functional and simple in installation and operation. Part which vary from model to model are contacts and head make Schneider Electric series Telemecanique; the enclosure and cover make Goreltex are always the same. Moving pin and bushing installed in the enclosure and ensuring explosion protection are made from stainless steel.

The head is fastened to the enclosure with 4 screws, the contacts are inserted into the contact block that is connected to the cover. The enclosure and cover have cylindrical thread and are fastened with 4 screws.

Enclosure of the explosion-proof limit switches DVG-KV is made from corrosion-resistant aluminum-silicon alloy resistant to salt spray and other chemical substances including hydrogen sulfide and hydrochloric acid vapors, with moisture and dust protection IP66.

Scope of application - 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.

CERTIFICATES

Marking:

1Ex db IIC T6 Gb
1Ex ia IIC T6 Gb
0Ex ia IIC T6 Ga X
Ex tb IIIC T80°С Db

Mining equipment marking:

РН1/РН2

Protection:

IP66

Certificates and permits:

ЕАЭС RU C-RU.НА67.В.00163/21

ЕАЭС RU C-RU.МЛ02.В.00298/20

РОСС RU С-RU.МЮ62.В.00097/23

Group 1 technical supervision RMRS

Свидетельство №13-11.1-6.4.1-1784

TU 3400-005-72453807-07

TU 27.12.31-037-72453807-2017

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

KZ39VEH00005608

TECHNICAL DATA

Ambient temperature, °С:

-60...+65 (for explosion-proof, mine normal and general industrial versions)

Rated voltage, V:

~500, 250

Maximum power:

~24 В – 50/60 Hz 10A
~120 V – 50/60 Hz 6A
~230 V – 50/60 Hz 3.1A
~240 V – 50/60 Hz 3A
~400 V – 60/50 Hz 1.8A
24 V - 2.8A
125V - 0.55A
250 V - 0.27A

Holder:

max. 50/60 Hz

Thread on connecting holes:

Metric M20х1,5 GOST 24705-2004

Coating:

Antistatic polymer-epoxy coating, frictionally intrinsically safe, resistant to operating environment and ionizing radiation. Color RAL 7035

Enclosure material:

Modified corrosion-resistant aluminum-silicon alloy, resistant to salt spray and other chemical substances including hydrogen sulfide and hydrochloric acid vapors, frictionally intrinsically safe

Electric shock hazard protection class:

I

Mass, kg:

0,3

Climatic version:

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

DIMENSIONS, OPTIONS, ACCESSORIES, ORDER CREATION

OVERALL AND MOUNTING DIMENSIONS

STANDARD CONFIGURATION OF DVG-KV

Picture
Model	Steel side pin DVG-KV-E21	Side pin with vertical roll Ø 12 mm DVG-KV-E22	Unidirectional lever with roll Ø 22 mm DVG-KV-E31: thermoplastic roll DVG-KV-E32: steel roll	Lever with roll Ø 22 mm DVG-KV-E41: nylon roll DVG-KV-E42: stainless steel roll
Maximum actuating speed (ms)	0,5	0,5	1,5	1,5
К1 snap-action contact 1NO+1NC	DVG-KV-E21K1	DVG-KV-E22K1	DVG-KV-E3.K1	DVG-KV-E4.K1
К2 contact with opening, before closing 1NO+1NC	DVG-KV-E21К2	DVG-KV-E22К2	DVG-KV-E3.К2	DVG-KV-E4.К2
К3 contact with closing, before opening, 1NO+1NC	DVG-KV-E21К3	DVG-KV-E22К3	DVG-KV-E3.К3	DVG-KV-E4.К3
К4 time-delay contact 2NC	DVG-KV-E21К4	DVG-KV-E22К4	DVG-KV-E3.К4	DVG-KV-E4.К4
К5 time-delay contact 2NO	DVG-KV-E21К5	DVG-KV-E22К5	DVG-KV-E3.К5	DVG-KV-E4.К5
Dimensions, mm

 

Picture
Model	Regulated lever with roll Ø 19 mm DVG-KV-E51: nylon roll DVG-KV-E52: stainless steel roll	Stainless steel spring lever DVG-KV-E62	Regulated steel lever Ø 3 mm DVG-KV-E71	Regulated thermoplastic lever  Ø 6 mm DVG-KV-E73
Maximum actuating speed, ms	1,5	1,5	1,5	1,5
К1 snap-action contact 1NO+1NC	DVG-KV-E5.K1	DVG-KV-E62K1	DVG-KV-E71K1	DVG-KV-E73K1
К2 contact with opening, before closing 1NO+1NC	DVG-KV-E5.К2	DVG-KV-E62К2	DVG-KV-E71К2	DVG-KV-E73К2
К3 contact with closing, before opening 1NO+1NC	DVG-KV-E5.К3	DVG-KV-E62К3	DVG-KV-E71К3	DVG-KV-E73К3
К4 time-delay contact 2NC	DVG-KV-E5.К4	DVG-KV_E62К4	DVG-KV-E71К4	DVG-KV-E73К4
К5 time-delay contact 2NO	DVG-KV-E5.К5	DVG-KV-E62К5	DVG-KV-E71К5	DVG-KV-E73К5
Dimensions, mm

 

Picture
Model	Smooth steel pin DVG-KV-E11	Steel plunger with ball bearing DVG-KV-E12	Pin with roll Ø 12 mm DVG-KV-E13
Maximum actuating speed (ms)	0,5	0,5	0,5
К1 snap-action contact 1NO+1NC	DVG-KV-E11K1	DVG-KV-E12K1	DVG-KV-E13K1
К2 contact with opening, before closing 1NO+1NC	DVG-KV-E11К2	DVG-KV-E12К2	DVG-KV-E13К2
К3 contact with closure, before opening 1NO+1NC	DVG-KV-E11К3	DVG-KV-E12К3	DVG-KV-E13К3
К4 time-delay contact 2 NC	DVG-KV-E11К4	DVG-KV-E12К4	DVG-KV-E13К4
К5 time-delay contact 2NO	DVG-KV-E11К5	DVG-KV-E12К5	DVG-KV-E13К5
Dimensions, mm

OPTIONS, ACCESSORIES AND VERSIONS

ORDER CREATION

External surface coating as per customer’s specification

/RAL (___)

Non-explosion-proof version

/PROM

Marine version

/MORE

Cable (length xx)

/K xx

Mine normal execution

/RN

Earthquake-resistant version

/MSK-64

FORMATION OF ORDER

DVG-KV	-E	Х	Х	-	Х	/	Х	– TU 3400-005-72453807-07
								Device name
								Actuator type number
								Contact diagram number
								Dimension type of cable gland
								Options, accessories and versions

Example: DVG-KV-E21K1- KNV1N-TU 3400-005-72453807-07
DVG-KV series limit switch, operating head E21 – stainless steel side pin, type of contact K1 – snap-action contact 1NO+1NC, KNV1N cable gland

ADDITIONAL INFORMATION

Functional diagrams of instantaneous action NC + NO contacts

Diagram

A - Maximum stroke of the actuator in millimeters or degrees.
B - Contact actuation stroke.
C - Contact reset stroke.
D - Differential stroke = B - C.
P - Starting point ensuring contact stroke.

Linear movement (plunger/rod)

1 - Contact reset point.
2 - Contact actuation point.
A - Maximum plunger/rod stroke in millimeters.
B - Contact actuation stroke.
C - Contact return stroke.
D - Differential stroke = B - C.
P - Starting point ensuring contact stroke.

Rotary motion (lever)

1 - Contact reset point.
2 - Contact actuation point.
A - Maximum lever stroke in millimeters.
B - Contact actuation stroke.
C - Contact return stroke.
D - Differential stroke = B - C.
P - Starting point ensuring contact stroke.

Functional diagrams of delayed action NC + NO contacts with delay before operation

Diagram

A - Maximum actuator movement in millimeters or degrees.
B - Operation and reset stroke of contact 21-22.
C - Operation and reset stroke of contact 13-14.
P - Starting point ensuring contact stroke.

Linear movement (plunger/rod)

1 - Actuation and return points for contacts 21-22.
2 - Actuation and return points for contacts 13-14.
A - Maximum actuator stroke in millimeters.
B - Operation and reset stroke of contact 21-22.
C - Operation and reset stroke of contact 13-14.
P - Starting point ensuring contact stroke.

Rotary motion (lever)

1 - Actuation and return points for contacts 21-22.
2 - Actuation and return points for contacts 13-14.
A - Maximum actuator stroke in degrees.
B - Operation and reset stroke of contact 21-22.
C - Operation and reset stroke of contact 13-14.
P - Starting point ensuring contact stroke.

DESIGN

Explosion-proof enclosure of the limit switch is manufactured from stainless steel. Powder coating with epoxy paint color grey RAL7035. Screws for enclosure and cover are made from stainless steel.

Enclosure is equipped with inner and outer ground bolt. Connection joints of enclosure with cover and a head have silicone seals. Limit switch shall be fastened using 2 mounting holes 5,4x8 mm.

Schneider Electric contact block series XE2… is extracted from the device together with enclosure cover which ensures maximum convenience of device installation. Contact blocks are manufactured from reinforced nylon with different types of contacts and have a regulating screw for an accurate setting of actuating point. Contacts have numbers, contact type designation and identification code

.

Various types of interchangeable Schneider Electric heads series Telemecanique type ZCKE are applied in DVG-KV explosion-proof limit switches. All heads are complete with fixating captive screws. There are no specific rules defining selection of one or another head: head selection is determined by correspondence to customer’s needs.

Mode of operation of mechanical part can be adjusted directly on the head.

Option of actuator positioning with pitch 5° or 45° in vertical plane or with pitch 90° in horizontal plane.

TABLE OF NAMES' MATCHING

Previous international name  "ZAVOD GORELTEX" Co. Ltd. TU 3400-005-72453807-07	The Customs Union name "ZAVOD GORELTEX" Co. Ltd. TU 3400-005-72453807-07
PS-E11Z11	DVG-KV-Е11К1
PS-E11X11	DVG-KV-Е11К2
PS-E11Y11	DVG-KV-Е11К3
PS-E11W02	DVG-KV-Е11К4
PS-E11W20	DVG-KV-Е11К5
PS-E12Z11	DVG-KV-Е12К1
PS-E12X11	DVG-KV-Е12К2
PS-E12Y11	DVG-KV-Е12К3
PS-E12W02	DVG-KV-Е12К4
PS-E12W20	DVG-KV-Е12К5
PS-E13Z11	DVG-KV-Е13К1
PS-E13X11	DVG-KV-Е13К2
PS-E13Y11	DVG-KV-Е13К3
PS-E13W02	DVG-KV-Е13К4
PS-E13W20	DVG-KV-Е13К5
PS-E21Z11	DVG-KV-Е21К1
PS-E21X11	DVG-KV-Е21К2
PS-E21Y11	DVG-KV-Е21К3
PS-E21W02	DVG-KV-Е21К4
PS-E21W20	DVG-KV-Е21К5
PS-E22Z11	DVG-KV-Е22К1
PS-E22X11	DVG-KV-Е22К2
PS-E22Y11	DVG-KV-Е22К3
PS-E22W02	DVG-KV-Е22К4
PS-E3_Z11	DVG-KV-Е3_К1
PS-E3_X11	DVG-KV-Е3_К2
PS-E3_Y11	DVG-KV-Е3_К3
PS-E3_W02	DVG-KV-Е3_К4
PS-E3_W20	DVG-KV-Е3_К5

Previous international name "ZAVOD GORELTEX" Co. Ltd. TU 3400-005-72453807-07	The Customs Union name "ZAVOD GORELTEX" Co. Ltd. TU 3400-005-72453807-07
PS-E22W20	DVG-KV-Е22К5
PS-E4_Z11	DVG-KV-Е4_К1
PS-E4_X11	DVG-KV-Е4_К2
PS-E4_Y11	DVG-KV-Е4_К3
PS-E4_W02	DVG-KV-Е4_К4
PS-E4_W20	DVG-KV-Е4_К5
PS-E5_Z11	DVG-KV-Е5_К1
PS-E5_X11	DVG-KV-Е5_К2
PS-E5_Y11	DVG-KV-Е5_К3
PS-E5_W02	DVG-KV-Е5_К4
PS-E5_W20	DVG-KV-Е5_К5
PS-E62Z11	DVG-KV-Е62К1
PS-E62X11	DVG-KV-Е62К2
PS-E62Y11	DVG-KV-Е62К3
PS-E62W02	DVG-KV-Е62К4
PS-E62W20	DVG-KV-Е62К5
PS-E71Z11	DVG-KV-Е71К1
PS-E71X11	DVG-KV-Е71К2
PS-E71Y11	DVG-KV-Е71К3
PS-E71W02	DVG-KV-Е71К4
PS-E71W20	DVG-KV-Е71К5
PS-E73Z11	DVG-KV-Е73К1
PS-E73X11	DVG-KV-Е73К2
PS-E73Y11	DVG-KV-Е73К3
PS-E73W02	DVG-KV-Е73К4
PS-E73W20	DVG-KV-Е73К5

CONFORMITY TO STANDARDS IN RUSSIA

GOST 14254-96 (IEC 529-89), GOST R IEC 60079-0-2011, GOST 30852.0-2002 (IEC 60079-0:1998), GOST 30852.1-2002 (IEC 60079-1:1998), GOST 30852.10-2002 (IEC 60079-11:1999), GOST 30852.20-2002, GOST 24754-2013, GOST IEC 61241-1-1-2011, GOST R IEC 60079-31-2010, TR CU 004/2011, TR CU 012/2011, Ch. 7.3 PUE, Ch. 7.4 PUE, RD 5.2-093-2004