APPLICATIONS Designed for electrical installations in classified areas, to use outdoors, where dust or any other external agent is present. Used with armoured and non-armoured cables, with frames like helical of galvanized steel wire, braid of galvanized steel wire and helical of galvanized steel band: used in entries of command boxes, control stations, lighting fixtures, pannels, engines, etc. In the armoured cable model, the press of armour is made by a double cone which is compressed inside by the pieces that provides the continuity of mass fixing the wire mechanically It has a double hermetic seal: one flame-proof and another weather-proof to prevent the entry of water, dust, etc. FEATURES Manufacture: Metal body of brass, acrylonitrile gasket, watertightness washer of polyamide. On request: Metal body of nickel brass. Thread Type: (see table of Threaded Entries) - 1/2" to 2” in N.P.T. - M20 to M63 in Metric 1,5. On request: - 1/2" to 2” in BSPT - PG 11 to PG 48. Ex d IIC and Ex e II according to IEC 79.1 and 79.7 Ex DIP A 21 T6 (for zone 21) according to IEC 1241-1-1. IP 65. 66 - DELGA S.A. Accesories: Brass nut: Limited to “e” protection boxes with thin walls and through hole. On request: Nickel brass. Brass terminals: To provide internal and / or external earth in boxes with non-continuity of mass or when using non-armoured cables is required earth. On request: Nickel brass. Cableglands depending on threaded entry and armoured cable to use. CODES AND DIMENSIONS 4 17.0 21.0 23.0 28.0 EXPA 4S037 EXPA 4S047 20.0 24.0 27.0 32.0 EXPA 4M037 EXPA 4M047 23.0 27.0 31.0 36.0 EXPA 4L037 EXPA 4L047 5 22.0 26.0 26.0 32.0 EXPA 5S047 EXPA 5S057 25.0 29.0 31.0 37.0 EXPA 5M047 EXPA 5M057 28.0 32.0 36.0 42.0 EXPA 5L047 EXPA 5L057 6 29.0 34.0 35.0 41.0 EXPA 6S067 34.0 39.0 41.0 47.0 EXPA 6M067 39.0 44.0 47.0 52.0 EXPA 6L067 GENERAL INFORMATION Explosion Proof - Boxes, accesories and components Cable-glands for armoured and non armoured cables EXPA / EXPN code: Basic size Cable diameter Cableglands code for armoured cable Under armor External NPT OPTION THREAD from to from to 1/2" IIB* 1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 1 - 2 3.0 7.0 9.0 12.0 EXPAB 1S017 EXPA 2S017 EXPA 2S027 6.5 12.8 10.5 16.0 EXPAB 1M017 EXPA 2M017 EXPA 2M027 11.0 14.3 13.0 21.0 EXPA 2L017 EXPA 2L027 3 11.0 15.0 14.0 18.0 EXPA 3S027 EXPA 3S037 14.0 20.0 17.0 24.0 EXPA 3M027 EXPA 3M037
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APPLICATIONS
Designed for electrical installations in classifiedareas, to use outdoors, where dust or anyother external agent is present. Used with armoured andnon-armoured cables, with frames like helical of galvanizedsteel wire, braid of galvanized steel wire and helical of galvanized steel band: used in entries of command boxes,control stations, lighting fixtures, pannels, engines, etc.In the armoured cable model, the press of armour is madeby a double cone which is compressed inside by the pieces that provides the continuity of mass fixing the wire mechanicallyIt has a double hermetic seal: one flame-proof and anotherweather-proof to prevent the entry of water, dust, etc.
FEATURES
Manufacture: Metal body of brass, acrylonitrile gasket, watertightnesswasher of polyamide.On request: Metal body of nickel brass.
Thread Type: (see table of Threaded Entries)- 1/2" to 2” in N.P.T.- M20 to M63 in Metric 1,5.On request:- 1/2" to 2” in BSPT- PG 11 to PG 48.
Ex d IIC and Ex e II according to IEC 79.1 and 79.7 Ex DIP A 21 T6 (for zone 21) according to IEC 1241-1-1.IP 65.
66 - DELGA S.A.
Accesories:Brass nut: Limited to “e” protection boxes with thin walls and through hole.On request: Nickel brass.
Brass terminals: To provide internal and / or external earth in boxes with non-continuity of mass or when usingnon-armoured cables is required earth.On request: Nickel brass.
Cableglands depending on threaded entry and armoured cable to use.
CODES AND DIMENSIONS
4
17.0 21.0 23.0 28.0 EXPA 4S037 EXPA 4S047
20.0 24.0 27.0 32.0 EXPA 4M037 EXPA 4M047
23.0 27.0 31.0 36.0 EXPA 4L037 EXPA 4L047
5
22.0 26.0 26.0 32.0 EXPA 5S047 EXPA 5S057
25.0 29.0 31.0 37.0 EXPA 5M047EXPA 5M057
28.0 32.0 36.0 42.0 EXPA 5L047 EXPA 5L057
6
29.0 34.0 35.0 41.0 EXPA 6S067
34.0 39.0 41.0 47.0 EXPA 6M067
39.0 44.0 47.0 52.0 EXPA 6L067
GENERAL INFORMATION
Explosion Proof - Boxes, accesories and components
Nickel brass (material on request).1/2” NPT (size and thread type).
Cablegland for armoured cable
EXPN 2S017 LN
Small (cable size).
2 (Basic size).
Nickel brass (material on request).1/2” NPT (size and thread type).
Cablegland for non-armoured cable
CABLE GLAND FOR ARMOURED CABLE
Unarmed
8 - Watertightnesswasher
7 - Bodygland
6 - Flame-proofgasket
5 - AdjustingCone
3 - Union body
4 - AdjustingO�ring
1 - Tightennut
2 - Watertightgasket
Explosion Proof - Boxes, accesories and components
Cable-glands for armoured and non armoured cables
EXPA / EXPNcode:
Order example
Assembled method
1
1.0 - Grease all the threads. (Industrial vaseline or oily lithium)
1.1 - Peel the end of the cable, considering that the length "X" until the wiring position must include the body length between threads.
1.2 - Cut the metal mesh leaving an useful length as long as the conic zone of theclamping and earthing cone (5) plus 1or 2 mm.
2
2.1 - Thread the tighten nut with the weather proof gasket inside (1), the reduction body (3), the clanping and earthing ring so that the main side cone remains at the cut end of cable.
33.1 - Open the metal mesh in such a way that it "copies" the adjustment cone. Thread it.
5 - Adjusting cone
1 - Nut (with watertightgasket)
3 - Union body4 - Adjusting ring
5 - Adjusting cone
DELGA S.A. - 69
www.delga.com
4
4.1 - Thread the body gland, with watertightness washer to the other cableglands side.
4.2 - Thread the body gland at the entry with the appropriate wrench until it has been adjusted definitively.
4.3 - Then thread the union body (3) and the lock nut (1) with a considerable adjustment (with the appropriate wrench).
5
5.1 - In case of cableglands for "e mode" protection or weather proof, add the watertightness washer (8).
8 - Watertightnesswasher
7 - Body gland
CABLE GLAND FOR NON ARMOURED CABLE
Unarmed
5 - Watertightness washer(to be used in “e” version)
3 - Flame proofgasket
4 - Body gland
1 - Tighten nut
2 - Adjustmentbushing
Assembled method
1.0 - Grease all the threads. (Industrial vaseline or oily lithium grease)
1.1 - Thread in the cable, the tighten nut (1), the adjustment bushing (2) and body gland (4)with the flameproof gasket (3) toward of the side of the other part of the cablegland.
1.2 - Thread the body gland at the entry with the appropriate wrench until it has been adjusted definitively.
1.3 - Thread all the parts with a considerable adjustment (with the appropriate wrench).
2.1 - In cases of cableglands for “e” protection or weather proof, add the watertightness washer.
5 - Watertightnesswasher
4 - 3.- Body gland withflame-proof gasket
2 - Adjustmentbushing
1 - Tighten nut
1
2
70 - DELGA S.A.
RECOMENDATIONS
The choice of the right system
1 - Set the classified area for the installation.
2 - Define the type of cable to use (armoured or non armoured).
3 - Determine the entries of the element you want to enter (diameter and thread type):If it is possible use NPT threads. Remember that Delga�s cable-glands and standard accesories aremanufactured in this type of thread, so you will obtain a quick delivery and reposition of parts.
4 - Define the diameters under armor and external (if corresponds) of the cable to use.
5 - According to the cable�s diameter, choose the exact cable-gland.
6 - Order the chosen option by its code. Otherwise, detail their characteristics (cable`s diameter and thread type).
Recommendations for use
1 - Verify that the peeled length of the cable is just what you�re needing.
2 - Grease all the threads before assembling.
3 - Be sure that cable is strongly pressed by the corresponding gasket.
4 - In the case of using an armoured cable, select the adjustment ring that better adapts to the armour type of cable�s:- big ring (with external slot) for helical armour of steel tape or wire.- small ring (without external slot) for helical armour of wire or braid.
5 - Cut the armour in a way that can enclose the shape of the cone.
6 - When using the "e" version with conic threads (NPT) the hole where it will be applied must be adjustby the corresponding nut.
7 - In the "e" version, the watertightness washer must be placed and adjust so much as it is possiblewithout deforming it, but bear in mind that it must support and exert a considerable pressure.