CMP PXRC-REX User manual

www.cmp-products.com
BARRIER CABLE GLAND FOR USE IN EXPLOSIVE ATMOSPHERES WITH BRAID,
UNARMOURED CABLE OR INDIVIDUAL CORES HOUSED IN CONDUIT.
TECHNICAL DATA
EXPLOSIVE ATMOSPHERES CLASSIFICATION
INSTALLATION INSTRUCTIONS
1. Installation should only be performed by a competent person using the correct tools. Spanners should be used for tightening. Read all instructions before beginning
installation.
2. The interface between a cable entry device and its associated enclosure / cable entry will require additional sealing to achieve ingress protection (IP) ratings higher than
IP54. The minimum protection level is IP54 for explosive gas atmospheres and IP6X for explosive dust atmospheres. Parallel threads (and tapered threads when using
a non-threaded entry) require a CMP sealing washer or integral O-ring face seal (where available) to maintain IP66, 67 and 68 (when applicable). It is the installer’s
responsibility to ensure the IP rating is maintained at the interface.
Note: When fitted to a threaded entry, all tapered threads will automatically provide an ingress protection rating of IP68.
3. A CMP earth tag should be used when it is necessary to provide an earth bond connection. CMP earth tags have been independently tested to comply with Category
B rating specified in IEC 62444 (there are no ratings stated in IEC 60079-0). Ratings are shown in the associated table. CMP earth tags slip over the cable gland or
accessory entry thread from inside/outside the enclosure and must be secured with a locknut (if fitted internally).
4. Metric entry threads comply with ISO 965-1 and ISO 965-3 with a 6g tolerance as required by IEC 60079-1:2014. The CMP standard metric thread pitch is 1.5mm for
threads up to M75, and 2.0mm from M90 and above. Special thread pitches between 0.7 – 2.0mm are available on all products on request. See certificate for details
of other thread types. NPT threads are in accordance with ASME B1.20.1-2013 gauging to Cl 3.2 for external threads. For details of other thread types refer to IECEx
certificate.
5. Enclosures must be strong enough to support the cable and cable gland assembly.The enclosure surface finish must be smooth and flat to facilitate sealing with an
O-ring or Entry Thread Sealing Washer for the required IP rating.
6. Enclosure walls must be sufficiently strong enough to support the cable and cable gland assembly. Enclosure entries shall be perpendicular. Any draft angles from the
casting/moulding process should have a perpendicular flat spot machined to facilitate sealing with an O-ring or Entry Thread Sealing Washer.
7. CMP Products recommends that when using the cable gland with a through-hole, the hole must be circular, free of burrs and the diameter no larger than 0.7mm above
the thread major diameter. A suitable CMP Products locknut shall be used to secure the product. See CMP Products catalogue for locknut options.
8. Cable glands do not have any serviceable parts and are therefore not intended to be repaired.
ACCESSORIES
The following accessories are available from CMP Products, as optional extras, to assist with fixing, sealing and earthing :-
Locknut | Earth Tag | Serrated Washer | Entry Thread (I.P.) Sealing Washer | Shroud *
CMP Products Limited on its sole responsibility declares that the equipment referred to herein conforms to the requirements of the ATEX Directive 2014/34/EU and the following
standards: -
EN 60079-0: 2018; EN 60079-1: 2014; EN 60079-7: 2015; EN 60079-15: 2015+A1:2018; EN 60079-31: 2014; EN 62444: 2013; BS 6121: 1989
David Willcock – Certification Engineer (Authorised Person)
CMP Products Limited, Cramlington, NE23 1WH, UK
15 APRIL 2019
INSTALLATION INSTRUCTIONS FOR
CMP CABLE GLAND TYPE PXRC-REX
SPECIFIC CONDITIONS OF USE
Glasshouse Street • St. Peters • Newcastle upon Tyne • NE6 1BS
Tel: [phone] • Fax: [phone]
E-Mail: [email protected].uk • Web: www.cmp-products.com
CABLE GLAND TYPE : PXRC-REX
INGRESS PROTECTION : IP66
PROCESS CONTROL SYSTEM : ISO 9001
: ISO/IEC 80079-34:2011
SCAN FOR INSTALLATION VIDEOS
ATEX CERTIFICATION No : CML 18ATEX1325X, CML 18ATEX4317X
ATEX CERTIFICATION CODE : ^II 2G 1D Ex db IIC Gb / Ex eb IIC Gb / Ex ta IIIC Da
IECEx CERTIFICATION No : IECEx CML 18.0182X
IECEx CERTIFICATION CODE : Ex db IIC Gb / Ex eb IIC Gb / Ex ta IIIC Da
When assembled to flexible conduit, the conduit must be effectively clamped to prevent twisting and pulling.
Cable Gland Selection Table
Cable
Gland
Size
Available Entry Threads
(Alternate Metric Thread Lengths Available)
Max
Number
Of
Cores
Standard
Female
Connection
Thread
Diameter
Over
Conductors
Cable
Bedding
Diameter
Overall
Cable
Diameter
Across
Flats
Across
Corners
Protrusion
Length
Combined Ordering
Reference
(*Brass Metric) Cable
Gland
Weight
(Kgs)
Standard Option
Metric
Thread
Length
(Metric)
NPT
Thread
Length
(NPT)
NPT Max Max Max Max Max Size Type Ordering
Suffix
20 M20 15.0 1/2” 19.9 3/4” 21 M20 12.6 12.9 13.9 30.0 33.0 48.1 20 PXRCREX 1RA 0.170
25 M25 15.0 3/4” 20.2 1” 30 M25 17.5 17.9 19.9 36.0 39.6 47.5 25 PXRCREX 1RA 0.330
32 M32 15.0 1” 25.0 1 1/4” 50 M32 23.6 23.9 26.2 41.0 45.1 51.8 32 PXRCREX 1RA 0.320
40 M40 15.0 1 1/4” 25.6 1 1/2” 59 M40 30.0 30.3 32.3 50.0 55.0 48.6 40 PXRCREX 1RA 0.420
50S M50 15.0 1 1/2” 26.1 2” 89 M50 36.6 36.9 38.9 55.0 60.5 59.1 50S PXRCREX 1RA 0.570
50 M50 15.0 2” 26.9 2 1/2” 115 M50 41.0 41.3 44.2 60.0 66.0 63.6 50 PXRCREX 1RA 0.610
63S M63 15.0 2” 26.9 2 1/2” 115 M63 47.9 48.4 50.0 70.1 77.1 62.6 63S PXRCREX 1RA 0.940
63 M63 15.0 2 1/2” 39.9 3” 115 M63 53.7 54.0 58.0 75.0 82.5 64.6 63 PXRCREX 1RA 0.890
75S M75 15.0 2 1/2” 39.9 3” 140 M75 59.9 60.2 62.4 80.0 88.0 71.7 75S PXRCREX 1RA 1.290
75 M75 15.0 3” 41.5 3 1/2” 140 M75 64.2 64.2 68 .1 85.0 93.5 71.2 75 PXRCREX 1RA 1.160
90 M90 24.0 3 1/2” 42.8 4” 140 M90 75.3 75.6 80.1 108.0 118.8 87.3 90 PXRCREX 1RA 2.630
100 M100 24.0 3 1/2" 42.8 4" 200 M100 83.6 83.9 84.9 123 135.3 110.0 100 PXRCREX 1RA 5.54
Dimensions are displayed in millimetres unless otherwise stated
FI415
REVISION DATE
IFS 12 05/19
ATEX / IECEx 11 01/19
cCSAus 11 01/19
CMP Earth Tag Size Short Circuit Ratings Symmetrical Fault Current
(kA) for 1 second
20 3.06
25 4.06
32 5.40
40 7.20
50 10.40
63 10.40
75 10.40
2776
INCORPORATING EU DECLARATION OF CONFORMITY TO DIRECTIVE [2014/34/EU]

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INSTALLATION INSTRUCTIONS FOR CMP CABLE GLAND TYPES PXRC-REX
CABLE GLAND COMPONENTS - It is not necessary to dismantle the cable gland any further than illustrated below
1. Entry Component
2. Compound Tube & Resin Dam
3. Washer
4. Nut
5. Running Coupling
6. Thread Shield
PLEASE READ ALL INSTRUCTIONS CAREFULLY BEFORE BEGINNING THE INSTALLATION
1. Prepare the cable (if used) by removing the outer sheath from the cores so that they are exposed within the Compound Tube
when finally assembled.
2. If the installation involves a cable, remove any bedding or fillers from
around the cable cores.
If the cable cores have braid screens, these should be unravelled and
then twisted together to form a single core if required.
If the cable has individual and / or overall foil screens, the foils must be
removed completely and the drain wire(s) passed through insulation
tubing. NOTE: To ensure a proper seal, the drain wire should be ex-
posed for up to 5mm next to the resin dam (so that the resin can bond
to the drain wire elements). If heat shrink tubing is used it should be
shrunk onto the drain wire.
Electrical tape MUST be wrapped around the tips of the cable cores to
prevent damage to the resin dam when the cable is installed.
If the installation uses only cores (i.e. no cable sheath) then tape must
be wrapped around the cores at the position at which it will engage
the resin dam.
Use the length of the gland as a guide to position the tape as shown
above (guide length “L”).
3. Pass the cable/cores through the gland so that the cable sheath / the tape
around the cores (if a cable is not being used) just passes through the resin dam.
(Use guide length “L” to determine how far to push the cable into the gland.)
Secure the Entry Item assembly to the Running Coupling (5) by tightening Nut
(4).
Fit the Thread Shield (6) and hold the assembly upright.
2. 3. 4. 5.
6. 1.
5. Refer to ‘RapidEx Resin’ assembly instructions to fill the connector Compound Tube with the required amount of
resin. The resin should not be mixed or applied at temperatures below 5°C (40°F). If the general ambient temperature
is below 5°C (40°F) please follow the instructions on CMP TDS 613 before proceeding. (Available on CMP website)
6. Once the resin has cured, remove the Thread Shield (6) and slacken the nut (4). Fit the Entry Item (1) into the equipment.
7. Attach the conduit to the Running Coupling (5) and fully tighten.
8. Finally, fully tighten the nut (4), into the entry component (1).
CABLE
GLAND SIZE 20S/16, 20S, 20 25S, 25, 32, 40 50S, 50, 63S, 63 75S, 75, 90
CABLE STRIP
LENGTH “L”
12 mm
(0.472 inches)
15 mm
(0.591 inches)
18 mm
(0.709 inches)
20 mm
(0.787inches)
CABLE
BEDDING“M” 35 40 42 50
L
M