Explosion-proof equipment plant
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.
Marking:
1Ex db IIC T6 Gb 1Ex ia IIC T6 Gb Ex tb IIIC T80°С Db
TU 3400-005-72453807-07 TU 27.12.31-037-72453807-2017
25024 V - 2.8A125V - 0.55A250 V - 0.27A
STANDARD CONFIGURATION OF DVG-KV
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| 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 |  |
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| Picture |  |
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| 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 |  |
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| 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 |  |
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| DVG-KV | -E | Х | Х | - | Х | / | Х | – TU 3400-005-72453807-07 |
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| 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
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
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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.
| 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 |
