Raxton brochure 2009 issue09

ELECTRICAL THREAD CONVERSIONS
FOR HAZARDOUS AREAS

2 3
Company Overview Contents
EExd
Adaptors 4
Insulated Adaptors 6
Right Angle Adaptors 7
Unions 8
Male to Male & Female to Female Adaptors 9
Reducers 10
Stopping Plugs 12
Breather Drain Plugs 14
Compound Stopper Box/Adaptors 19
EExe
Adaptors 5
Reducers 11
Stopping Plugs 13
Breather - Drain Plugs 15
Earth Lead Adaptors & Threaded Earth Plates 18
Accessories
Earth Tags 16
Washers 16
Locknuts/Lockrings 16
Screwed Nippling 17
Bushes 17
Shrouds 17
Serrated (Shakeproof) Washers 17
Technical Information
Thread Dimensions Chart 20
Raxton Part Number System 21
Hazardous Area Information 22
Ingress Protection Information 23
Raxton Limited have been manufacturers of Electrical Thread Adaptors, Reducers, Stopping Plugs and accessories since
1976. Today Raxton remain committed to products designed to solve the fundamental difficulties which exist due to the
variety of thread forms currently in use within the electrical industry.
Problems caused by dissimilar threads can occur in both hazardous and industrial environments. Raxton products are fully
approved to meet these requirements, being EExd and EExe certified as ATEX, CSA, IECE and GOST Standards.
Many products such as Cable Glands, Drain Plugs, Insulating and Earth devices have been added over the years. Raxton
now has a worldwide distribution base for its extensive range.
Experience shows that our customers are unable to cope with extended deliveries. We recognise the need to respond
quickly and have established a reputation throughout the industry for prompt despatch of orders, however large or small.
Raxton will continue to offer, alongside its standard range, a bespoke and specials manufacturing service to meet the
needs of the market it serves.
Whilst the company continues to expand and develop, Raxton’s principal objective will always be to maintain its high
standards of customer satisfaction.

4 5
Adaptors EExd EExe Adaptors
Thread MALE THREAD FEMALE THREAD
MAX BORE MM A/F DIMENSION MM
M20 14.3 23.37
M25 20.5 27.94
M32 26.8 37.59
M40 33.5 47.24
M50 44.0 56.39
M63 55.2 70.10
M75 66.7 80.01
Quality
SIRA (0518) 02 ATEX M207
BVQI EN ISO 9001: 2000
Thread Specification
Isometric (ISO) to BS3643:1981 and ISO 965 Pts 1 & 3
Imperial (ET) to BS31:1940 (1979)
National PipeThread (NPT) to ANSI/ASME:1983
British Standard Pipe (BSP) to BS21:1985
Pg to DIN 40430:1971
Materials
Brass: BS2874: 1985 CZ121
Mild Steel: BS970 PT3 230M07
Stainless Steel: BS970 PT3 316 S11
Aluminium: BS1474/1 6082T4 orT6
Aluminium Bronze: BS1400 1985 AB2 or BS2874:1986 CA104
APPROVALS
SIRA 00ATEX1073U
IECEx SIR07.0010X
CSA 1003277U
GOST POCC GB.MЛ14.B00104
Plating
Raxton Adaptors are available in a variety of finishes including
Nickel, Electro Zinc, Zinc Passivated, Chromatised, Electroless
Nickel and Anodised.
Thread Identification
SelectionTable on page 20 identifies the standard thread
variations produced and is designed to assist the user in the
selection process.
Temperature
The item is classified as a component
and is therefore not given a
temperature rating.
*
*
* Minimum 8 full threads parallel 5 full
threads taper
Type AB HEX
Raxton EExd Adaptors provide a means of connection between dissimilar
thread forms or sizes. Certified Adaptors should be used following the basic
rules in line with good engineering practice:- No more than one conversion
Adaptor should be used at one time on any given cable entry.
Standard Adaptors have a hexagonal body, where space is a critical factor,
Adaptors can be offered with a round body with a diameter equal to the
A/F dimension of the standard item.
Raxton Adaptors are marked with the applicable approval number and size.
thread BORE BORE head dia head a/f
female NYLON METALLIC nylon mm metallic mm
M16 8.0 11.0 24.0 20.8
M20 12.5 14.3 27.5 23.4
M25 17.5 20.5 35.5 28.0
M32 24.5 26.8 41.0 37.6
M40 32.5 33.5 50.0 47.2
M50 42.5 44.0 60.0 55.9
M63 53.0 52.2 75.0 70.0
M75 64.0 66.7 85.0 80.0
Quality
SIRA (0518) 02 ATEX M207
Pg to DIN 40430:1971
Materials
Brass: BS2874: 1985 CZ121
Nylon: 30% Glass filled Nylon 66
APPROVALS
SIRA 00ATEX1073U
IECEx SIR07.0010X
Plating
Raxton Metallic Adaptors are available in a variety of finishes
including Nickel, Electro Zinc, Zinc Passivated, Chromatised,
Electroless Nickel and Anodised.
variation produced and is designed to assist the user in the
selection process.
Temperature
The item is classified as a component and is
therefore not given a temperature rating.
Nylon temperature range -20°c to 60°c
'O' ring -50°c to 100°c
GF Nylon is UL rated @ H.B. @ 1.5mm
Raxton EExe Adaptors provide a means of connection between dissimilar
thread forms or sizes. Certified Adaptors should be used following the
basic rules in line with good engineering practice:- No more than one
conversion Adaptor should be used at one time on any given cable
entry. Stopping Plugs should be fitted directly into unused entries of the
equipment and not into an Adaptor.
Metallic Adaptors are supplied with a hexagonal body as standard. Where
space is a critical factor Adaptors with a round body can be offered the
diameter is equal to the across flat dimensions of the hexagonal body.
Nylon Adaptors are produced with a round body.
EExe Adaptors are supplied fitted with an ‘O’ring to maintain the IP
integrity of the installation.
Raxton Adaptors are marked with the applicable approval number
and size.
Independently tested to IP68.
*Minimum length of thread 10mm
*
*
TYPE AJ ROUND
TYPE AB HEX
Type AJ ROUND

6 7
EExd Right Angle Adaptors
thread Assembly BORE Male Bore
Height mm Size mm
M16 45 11.0 9
M20 51 14.3 15
M25 57 20.5 20.8
M32 66 26.8 26.8
M40 75 33.5 33.5
M50 86 44.0 44
M63 101.5 55.2 55
M75 119 66.7 66.5
Quality
SIRA (0518) 02 ATEX M207
Pg to DIN 40430:1971
Materials
Brass: BS2874: 1985 CZ121
APPROVALS
SIRA 00ATEX1073U
Plating
Raxton Right Angle Adaptors are available in a variety
of finishes including Nickel, Electro Zinc, Zinc Passivated,
Chromatised, Electroless Nickel and Anodised.
selection process.
Temperature
temperature rating.
Raxton Right Angle Adaptors provide a means of connection where
protrusion space is limited whilst simultaneously, if necessary, converting
the entry thread to that of a different type or reducing size and/or gender
of the female thread.
Right Angle Adaptors can be supplied either with male or female thread
entries, or alternatively with female to female thread entries and are
marked with the applicable approval number and size.
Protrusion dimensions are shown in the table below.
TYPE FG
Male-Female
TYPE FN
Female-Female
* Minimum 6 full threads parallel
5 full threads taper
*
*
Insulated Adaptors EExd
Quality
SIRA (0518) 02 ATEX M207
Isometric (ISO) to BS3643:1981 and ISO 965 Pts 1 3
Pg to DIN 40430:1971
Materials
Brass: BS2874: 1985 CZ121
APPROVALS
SIRA 00ATEX1073U
Plating
Raxton Insulated Adaptors are available in a variety of finishes
including Nickel, Electro Zinc, Zinc Passivated, Chromatised, Electroless
SelectionTable on page 20 identifies the standard thread variation
produced and is designed to assist the user in the selection process.
Temperature
The item is classified as a component and is therefore not
given a temperature rating.
Nylon temperature range max 135°c to -20°c min
GF Nylon is UL rated @ H.B. @ 1.5mm
Raxton Insulated Adaptors provide a means to isolate the earth of the
supply cable from the load equipment thus reducing the risk of damage
to electronic equipment within the enclosure in the event of a short
circuit to ground through the enclosure. Insulated Adaptors also reduce
the problems of electrical noise on the armour affecting the clean earth
required by some sensitive instruments. Single point grounding can reduce
the circulating current that can cause heating of high capacity cables.
Cable gland and cable can still be earthed externally with the use of an
earth tag fitted between the cable gland and the Insulated Adaptor.
Raxton Insulated Adaptors are marked with the appropriate approval
number and size.
TYPE DB
*Minimum 8 full threads parallel
*
*
thread protrusion mm BORE dia mm
M16 45 11.0 30
M20 45 14.3 42
M25 45 20.5 47
M32 45 26.8 54
M40 45 33.5 62
M50 45 44.0 77
M63 45 55.2 87
M75 45 66.7 102

8 9
Unions EExd EExd Male to Male and
Female to Female Adaptors
Quality
SIRA (0518) 02 ATEX M207
Pg to DIN 40430:1971
Materials
Brass: BS2874: 1985 CZ121
APPROVALS
SIRA 00ATEX1073U
Plating
Raxton Male to Male and Female to Female Adaptors are
available in a variety of finishes including Nickel, Electro Zinc,
Zinc Passivated, Chromatised, Electroless Nickel and Anodised.
selection process.
Temperature
temperature rating.
Male to Male Adaptors provide a connection between two female
threads of the same or dissimilar thread forms.
Female to Female Adaptors provide a connection between two male
threads of the same or dissimilar thread forms.
In each case, thread combinations can reduce by one size of the same
thread form or to the equivalent of another form.
Eg M25 x M20
M25 x 1/2NPT
Both Male to Male and Female to Female Adaptors are marked with the
appropriate approval number and size.
thread Protrusion BORE dimension
mm A/F mm
M16 53 11.0 30.5
M20 53 14.3 33.0
M25 53 20.5 37.6
M32 53 26.8 47.2
M40 53 33.5 56.0
M50 53 44.0 65.0
M63 53 55.2 80.0
M75 53 66.7 90.0
TYPE AX ROUND
*
Minimum 8 full threads parallel
* *
thread Length BORE Dimension
mm A/F mm
M16 38 11.0 18.0
M20 38 14.3 23.4
M25 38 20.5 28.0
M32 38 26.8 37.6
M40 40 33.5 41.3
M50 40 44.0 53.0
M63 42 55.2 70.0
M75 42 66.7 80.0
Quality
SIRA (0518) 02 ATEX M207
Pg to DIN 40430:1971
Materials
Brass: BS2874: 1985 CZ121
APPROVALS
SIRA 00ATEX1073U
Plating
Raxton Unions are available in a variety of finishes including Nickel,
Electro Zinc, Zinc Passivated, Chromatised, Electroless Nickel and
Anodised.
SelectionTable on page 20 identifies the standard thread variation
produced and is designed to assist the user in the selection process.
Temperature
The item is classified as a component and is therefore not given a
temperature rating.
Raxton Unions are designed to provide a running joint whilst eliminating
exposed threads and are particularly suitable for use where a coupler would
be impractical. Unions are available in a variety of thread forms and can be
supplied with male to female or female to female thread entries. The female
connection thread of the Union shall step not more than one size up from
the male connection thread, or equal to one size up in the case of a thread
gender change. Eg M20(M) to M25(F) or M20(M) to 3/4 NPT(F).
Raxton Unions are marked with the appropriate approval number and size.
TYPE FB Male-Female
#
Flamepath in accordance with appropriate standard
#
*
*
TYPE FL Female-Female
TYPE AU HEX
*
NB for chart below. Bore size on female
products is root diameter of the thread.

10 11
Reducers EExd
thread A/F mm
M16 19.0
M20 23.3
M25 28.0
M32 37.6
M40 47.2
M50 55.9
M63 70.0
M75 80.0
EExe Reducers
Quality
SIRA (0518) 02 ATEX M207
Pg to DIN 40430:1971
Materials
Brass: BS2874: 1985 CZ121
APPROVALS
SIRA 00ATEX1073U
IECEx SIR07.0010X
Plating
Raxton Metallic Reducers are available in a variety of finishes
selection process.
Temperature
temperature rating.
'O' ring -50°c to 100°c
Nylon -20°c to 60°c
Raxton EExe Reducers effectively reduce the threaded entry diameter of
an enclosure to accept a gland or fitting with a smaller thread. Reducers
may also be supplied to accept smaller glands of alternative threads.
Following the basic rules in line with good engineering practices no
more than one Reducer should be used at any one time. Stopping Plugs
should be fitted directly into unused entries of the equipment and not
into a Reducer.
Brass Reducers are supplied with a hexagonal head as standard where
space is a critical factor Adaptors with a circular head can be offered with
a diameter equal to the across flats dimension of the hexagonal head.
Nylon Reducers are designed with a circular head.
EExe Reducers are supplied with an ‘O’ring to maintain the IP integrity of
the installation.
Raxton EExe Reducers are marked with the applicable approval number
and size.
Independently tested to IP68.
thread head dia head a/f
female nylon mm metallic mm
M16 22 19.0
M20 25 20.3
M25 30 28.0
M32 38 37.6
M40 46 47.2
M50 56 55.9
M63 70 70.0
M75 81 80.0
TYPE BJ ROUND
TYPE BB HEX
*
Minimum
length of thread
10mm
*
Quality
SIRA (0518) 02 ATEX M207
Pg to DIN 40430:1971
Materials
Brass: BS2874: 1985 CZ121
APPROVALS
SIRA 00ATEX1073U
IECEx SIR07.0010X
CSA 1003277U
Plating
Raxton Reducers are available in a variety of finishes including Nickel,
Electro Zinc, Zinc Passivated, Chromatised, Electroless Nickel and
Anodised.
variation produced and is designed to assist the user in
the selection process.
Temperature
temperature rating.
'O' ring -50°c to 100°c
Raxton EExd Reducers effectively reduce the threaded entry diameter of an
enclosure to accept a gland or fitting with a smaller thread. Reducers may
also be supplied to accept smaller glands of alternative threads forms.
Following the basic rules in line with good engineering practices no more
than one Reducer should be used at any one time.
Standard item has a hexagonal head where space is a critical factor
Reducers with a circular head can be offered having a diameter equal to
the across flats dimension of the hexagonal head (see table below).
Raxton Reducers are marked with the applicable approval number and size.
TYPE BJ ROUND
* Minimum 8 full
threads parallel 5
full threads taper
*
TYPE BB HEX

12 13
Stopping Plugs EExd
Quality
SIRA (0518) 02 ATEX M207
Pg to DIN 40430:1971
Materials
Brass: BS2874: 1985 CZ121
APPROVALS
SIRA 00ATEX1073U
IECEx SIR07.0010X
CSA 1003277U
Plating
Raxton Stopping Plugs are available in a variety of finishes
selection process.
Temperature
temperature rating.
Raxtons' comprehensive range of Stopping Plugs are designed to close
any unused entries in electrical equipment without revoking existing
certification.
The range covers four design types:-
Tamperproof PLUG Type CF
Tamperproof Plugs are inserted from the outside
with the allen key towards the enclosure and
then tightened from the inside to leave a flush
finish to prevent unauthorised removal.
RX PLUG Type CB
RX Plugs are inserted with the allen key
pointing away from the box and tightened
from the outside.
Hexagon Head Plug Type CK
Hexagon Headed Plugs are inserted
from the outside and fastened by means of a spanner.
(Across flats dimensions are listed below).
thread RX TP DOME Hexagon head
allen key allen key A/F mm
M16 6 6 19.0
M20 10 10 23.3
M25 10 10 28.0
M32 10 10 37.5
M40 10 19 47.0
M50 10 19 56.0
M63 10 19 70.0
M75 10 19 80.0
Following the basic rules in line with good
engineering practice Raxton Stopping Plugs
should be inserted directly into the unused
entry and not into a thread Reducer or
thread Adaptor.
They can be fitted with a washer to increase the
IP rating of the assembly
* Minimum 8
full threads parallel
*
* *
EExe Stopping Plugs
Quality
SIRA (0518) 02 ATEX M207
EN ISO 9001: 2000
Isometric (ISO) to BS3643:1981 or ISO 965 Pts 13
Pg to DIN 40430:1971
Materials
Brass: BS2874: 1985 CZ121
BS2874:1986 CA104
APPROVALS
SIRA 00ATEX1073U
IECEx SIR07.0010X (metalic only)
Plating
Raxton Metallic Stopping Plugs are available in a variety
selection process.
Temperature
temperature rating.
'O' ring -20°c to 60°c
Nylon -50°c to 100°c
Raxton EExe Stopping Plugs are designed to close any unused entries
in electrical equipment. Available either with a mushroom head or a
hexagonal head they are supplied complete with an ‘O’ring to ensure
that the IP rating of the installation is maintained.
Raxton Plugs should be fitted directly into any tapped or untapped entry
in the enclosure - mushroom headed plugs are fastened by means of an
allen key.
Raxton EExe Plugs are marked with the appropriate approval number
and size.
Tested to IP68
thread A/F DOME head dia mushroom
hex plug mm ALLEN KEY plug mm
M16 19.0 6 20.5
M20 20.8 10 25.0
M25 28.0 10 30.0
M32 37.6 10 38.0
M40 47.2 19 46.0
M50 55.9 19 56.0
M63 70.0 19 69.0
M75 80.0 19 81.0
*
#
#
HEXAGON HEAD Type CK
Hexagon Head Plugs are inserted from the outside and
tightened with a spanner. They are fitted with an 'O' ring as a
norm but can be used with a washer if preferred.
DOME HEAD PLUG TYPE CQ
Can be offered as an alternative to the
Hexagon Headed version
DOME HEAD TYPE CQ
Dome Head Plugs are inserted from the
outside using an allen key. They are fitted
with an 'O' ring as a norm but can be used
with a washer if preferred.
10mm across flats for M16 to M32.
19mm across flats for M40 to M75
*15mm Standard

14 15
Breather - Drain Plugs EExd EExe Breather - Drain Plugs
Quality
SIRA (0518) 02 ATEX M207
Materials
Brass: BS2874: 1985 CZ121
APPROVALS
SIRA 00ATEX1288U
IECEx SIR08.0127U
Plating
Raxton Metallic Drain Plugs are available in a variety of finishes
including Nickel, Electro Zinc, Zinc Passivated, Chromatised, Electroless
Temperature
-50°c to 230°c
Quality
SIRA (0518) 02 ATEX M207
Isometric (ISO) to BS3643:1981 or ISO 965 Pts 1 3
Pg to DIN 40430:1971
Materials
Brass: BS2874: 1985 CZ121
APPROVALS
SIRA 00ATEX3074U
Plating
Raxton Metallic Drain Plugs are available in a variety of finishes
selection process.
Temperature
temperature rating.
'O' ring -50°c to 100°c
The Raxton Exd Breather/Drain Plug is designed to: 1) effectively drain
moisture from an enclosure, 2) allow air from the enclosure to vent into
the surrounding atmosphere thereby minimising moisture build up
and 3) provide the explosionproof safety required by a hazardous area
environment.
The Plug is fastened to the lowest point of the enclosure by means of a
spanner.
The plug is an assembled item and must not be taken apart at any stage
of installation.
The 'O' ring will seal against the enclosure face enhancing the I.P. rating
of the Plug.
The Breather/Drain Plug has an impact resistance of 20 Nm and can
operate at temperatures between -50°c to +230°c
Tested to IP66
Raxton EExe Drain Plugs effectively drain any moisture build-up present
within the enclosure whilst allowing air in the enclosure to breathe with
the surrounding atmosphere minimising moisture build up within the
enclosure.
Fastened by means of an allen key the Drain Plug should be fitted at the
lowest point of the enclosure.
The Drain Plug can be fitted:
a) into a chamfered plain hole using drainage washer and locknut or
castellated locknut on the inside of the enclosure.
b) directly into a threaded hole provided that, if the thread protrudes,
the drainage hole is visible.
The Drain Plug can be supplied with either a serrated washer and locknut
allowing the condensation to drain whilst ensuring the Plug is shakeproof
or with a castellated locknut.
The Drain Plug is fitted with an ‘O’ring as standard ensuring that the IP
integrity of the installation is maintained.
Raxton Drain Plugs are marked with the appropriate approval number
and size.
Tested to IP66
THREAD HEX A/F THREAD LENGTH OAL
M20 27.0 (1.062) 16 31
M25 31.75 (1.25) 16 31
1/2”NPT 27.0 (1.062) 20.0 35
3/4”NPT 27.94 (1.1) 20.0 35
TYPE CV
TYPE CTE
*10mm Standard
*
Thread diameter allen head
mm key mm protrusion mm
M20 25.4 10 14
M25 30.5 10 14
M32 38.0 10 14
1/2”NPT 25.4 10 14
3/4”NPT 30.5 10 14
1”NPT 38.0 10 14
TYPE CTA
*
* Minimum 8 full threads parallel

16 17
Accessories Accessories
Screwed Nippling
Supplied 50mm long as standard, alternative lengths can be supplied as
required. Available in a variety of thread forms (see page 22). Materials
include Brass, Mild Steel, Stainless Steel, Aluminium and Nylon.
Metallic finishes can be plated to requirements.
Couplers
Available in round or hexagonal. Manufactured in
Brass as standard, they can be supplied with either
similar or dissimilar threads at each end in a wide
combination of thread forms and sizes.
Bushes
Male and Female Bushes are available in a variety of thread
forms (see page 22). Materials include Brass, Mild Steel,
Stainless Steel, Aluminium and may be plated to requirements.
Shrouds
Raxton offer a range of push on Shrouds which
are used to minimise the risk of dirt or foreign
substances gathering on the cable gland body
and /or point of cable to the gland interface.
Supplied as standard in black PVC they are
suitable for all leading makes of glands.
Serrated (Shakeproof) Washers
Raxton Serrated Washers are available in both Mild
Steel Zinc plated and Stainless Steel and prevent
the risk of attachments becoming loose when
used in conjunction with a Locknut.
Locknuts/Lockrings
Raxton offer a large variety of Locknuts/Lockrings which
are often recommended for securing cable glands,
thread Adaptors or thread Reducers to a gland plate or
into equipment. Locknuts are available in Brass, Mild
Steel, Stainless Steel, Aluminium or Nylon.
Earth Tags
Raxton Earth Tags provide a means of connecting a
flexible earth bond with the gland, thread Adaptor or
thread Reducer in any required position whilst ensuring
suitable earth continuity. Available in Brass, Aluminium
and Stainless Steel and supplied self colour as standard
additional plating is available if required.
Washers
To maintain the IP rating of the equipment Raxton
offer a wide variety of entry thread sealing Washers
and ‘O’rings. Materials include Nylon, Teflon,
Neoprene, Fibre, and Rubber. In addition Raxton can
offer a non setting universal jointing sealant.

18 19
Earth Lead Adaptors
Threaded Earth Plates EExe
Quality
SIRA (0518) 02 ATEX M207
Materials
Brass: BS2874: 1985 CZ121
APPROVALS
SIRA 00ATEX1073U
Plating
Raxton Earth Lead Adaptors/Plates are available in a variety
selection process.
Temperature
The item is classified as a component and is therefore not given
a temperature rating.
'O' ring -50°c to 100°c
thread length earth Lead X
earth lead mm 300mm (mm2)
M16 38 2.5
M20 38 2.5
M25 38 4.0
M32 38 6.0
M40 39 10.0
M50 39 16.0
M63 39 25.0
M75 39 25.0
Earth lead Adaptors
Raxton EExe Earth Lead Adaptors allow for earth continuity to be
maintained by providing an earth lead which can be terminated inside
the enclosure. Earth Lead Adaptors are produced with an undercut
and supplied complete with an ‘O’ring to maintain the IP integrity of
the installation. Earth Lead Adaptors are marked with the appropriate
approval number and size.
Threaded Earth Plate
Raxton EExe Threaded Earth Plates are designed to ensure earth
continuity when terminating brass glands into non metallic enclosure.
The additional use of a locknut is recommended to ensure pressure is
maintained with the wall enclosure. Threaded Earth Plates are marked
with the appropriate approval number and size.
TYPE DG Adaptors
Type DN Reducers
*Minimum length of thread 10mm
*
thread Material cable x
earth plate size (mm) 300mm (mm2)
M16 22 2.5
M20 30.0 2.5
M25 32.0 4.0
M32 38.0 6.0
M40 50.8 10.0
M50 63.5 16.0
M63 76.0 25.0
M75 102.0 25.0
EExd Compound Stopper Box/Adaptor
Quality
SIRA (0518) 02 ATEX M207
EN ISO 9001: 2000
Pg to DIN 40430:1971
Materials
Brass: BS2874: 1985 CZ121
APPROVALS
SIRA 00ATEX1073U
Plating
Raxton Stopper Boxes are available in a variety of finishes
SelectionTable on page 20 identifies the standard
thread variation produced and is designed to assist the
user in the selection process.
Temperature
The item is classified as a component and is therefore not
given a temperature rating.
'O' ring -50°c to 100°c
Raxton Compound Stopper Box is designed to seal conductors at the
entry to the enclosure via conduit or to enable an existing compression
gland to be converted to a barrier gland. This is achieved by forming a
barrier between the individual insulated conductors within the cable to
prevent an explosion within the enclosure. The Compound Stopper Box
allows compound to be packed around individual insulated conductors.
Assembly of the component compresses the packing material and
distributes the compound evenly to effect a barrier at point of entry into
the enclosure.
The Compound Stopper Box is supplied with compound in a pack,
complete with making off instructions and gloves.
Raxton Compound Stopper Box is marked with the appropriate approval
number and size.
TYPE EG
*
*
thread Bore thread protrusion
min mm length mm mm
M16 7.20 15 32.0
M20 12.50 15 34.5
M25 18.25 15 34.5
M32 24.30 15 34.5
M40 30.00 17 35.0
M50 41.60 17 37.0
M63 53.25 17 37.0
M75 65.00 17 37.0
TYPE DK

20 21
Thread Dimension Chart Raxton Part Number System
FEMALE THREAD
MALE THREAD
M16/5/8”ET
M20/3/4”ET
M25/1”ET
M32/11/4”ET
M40/11/2”ET
M50/2”ET
M63/21/2”ET
M75/3”ET
1/2”NPT/BSP
3/4”NPT/BSP
1”NPT/BSP
11/4”NPT/BSP
11/2”NPT/BSP
2”NPT/BSP
21/2”NPT/BSP
3”NPT/BSP
31/2”NPT
4”NPT
ThreadS
PER INCH PITCH BORE Size
MAX
MAJOR
DIAMETER
MM
Size
16.93 1.5 11.0 16 M16
16.93 1.5 15.0 20 M20
16.93 1.5 20.5 25 M25
16.93 1.5 26.8 32 M32
16.93 1.5 33.5 40 M40
16.93 1.5 44.0 50 M50
16.93 1.5 55.2 63 M63
16.93 1.5 66.7 75 M75
14 1.81 14.3 21.34 1/2”NPT
14 1.81 20.5 26.67 3/4”NPT
111/2 2.20 26.8 33.40 1”NPT
111/2 2.20 33.5 42.16 1 1/4”NPT
111/2 2.20 41.0 48.26 1 1/2”NPT
111/2 2.20 54.0 60.33 2”NPT
8 3.175 64.5 73.03 2 1/2”NPT
8 3.175 79.0 88.90 3”NPT
8 3.175 90.0 101.60 3 1/2”NPT
8 3.175 101.0 114.30 4”NPT
14 1.81
P T
15.5 14.3
20.96 1/2”BSP
14 1.81 17.5 16.3 22.91 5/8”BSP
14 1.81 21.5 20.0 26.44 3/4”BSP
11 2.31 26.8 25.5 33.25 1”BSP
11 2.31 35.0 33.0 41.91 1 1/4”BSP
11 2.31 41.0 39.0 47.80 1 1/2”BSP
11 2.31 53.0 50.0 59.61 2”BSP
11 2.31 66.0 62.0 75.18 2 1/2”BSP
11 2.31 77.0 73.0 87.88 3”BSP
CERTIFIED Reducers Adaptors Not Certified
DIGIT 1+2 CODE
ADAPTORS
M-F HEX AB
M-F ROUND AJ
M-M AR
F-F HEX AU
F-F ROUND AX
REDUCERS
M-F HEX BB
M-F ROUND BJ
PLUGS
RX CB
TAMPERPROOF CF
HEX HEAD CK
DOME HEAD CQ
SLOTTED CS
DRAIN CV
INSULATING
AND
EARTHING
INSULATED M x F DB
INSULATED M x M DD
INSULATED F x F DE
EARTH LEAD M x F DG
EARTH PLATE DK
EARTH TAG DM
CABLE
RETENTION
GLAND EB
STOPPER BOX M-F EG
STOPPER BOX F-F EK
ADAPTING
AIDS
UNION M-F FB
UNION F-F FL
UNION M-M FE
RIGHT ANGLE M-F FG
RIGHT ANGLE F-F FN
RIGHT ANGLE M-M FK
LOCKING
LOCKNUTS GA
LOCKRINGS GB
SERRATED WASHERS GC
LOCKNUTCASTELLATED GD
I.P. AIDS
WASHERS HA
O RINGS HB
SHROUD HC
ACCESSORIES
MALE BUSH LONG JA
MALE BUSH SHORT JB
FEMALE BUSH JC
NIPPLE JD
NIPPLE LONG JE
NIPPLE BARREL JF
COUPLER ROUND JG
COUPLER HEX JH
COUPLER FLANGE JJ
DIGIT 3 CODE
BRASS A
ALUMINIUM B
STEEL C
COPPER
NON-ASB
D
STAINLESS
STEEL
E
PVC F
NYLON BLACK G
NYLON GREY H
SILICONE J
NYLON BLUE K
LEAD L
GLASS FILLED
NYLON
M
NYLON 66 N
RED FIBRE U
TEFLON P
EPDM Q
NYLON WHITE R
SPECIAL S
MALE DIGIT 4 + 5 FEMALE DIGIT 6 + 7
THREAD REFERENCES AS TABLE BELOW
ISOMETRIC NPT BSP T BSP P
SIZE CODE SIZE CODE SIZE CODE SIZE CODE
M6 01 1/2 42 1/2 52 62
M8 02 3/4 43 3/4 53 63
M10 03 1 44 1 54 64
M12 04 1 1/4 45 1 1/4 55 65
M16 11 1 1/2 46 1 1/2 56 66
M20 12 2 47 2 57 67
M22 07 2 1/2 48 2 1/2 58 68
M24 08 3 49 3 59 69
M25 13 3 1/2 86 4 79 89
M28 09 4 87 SPECIAL 50 60
M32 14 5 88
Normally male thread is specified
first (4+5) Female thread second
(6+7) with items then both M-M
or F-F sets of digits will be used
Pg ET thread components are
still available please consult sales
department for advice.
M38 05
M40 15
M50 16
M63 17
M75 18
M80 80
M90 81
M100 82
SPECIAL 10 SPECIAL 40
DIGIT 8 APPROVALS
Atex EExde A
Atex EExd D
Atex EExe E
Mining
Group 1 M
CSA © Exd11C J
CSA (US) Class
1 Zone 1 K
AExd 11C L
IECEx Exd
1/11C N
IECEx Exe 1/11 P
Gost Exde
11CU T
Gost Exde
1/11CU U
Gost Exd11CU V
Gost Exe11U W
Examples
PART NUMBER
Adaptor Brass 1/2”NPT M20F EExd
AB A 42 12 D = ABA4212D
Reducer GF Nylon M50 M 1”NPT F EExe
BB M 16 44 E = BBM1644E
Locknut Brass - M63 -
GA A 00 17 l = GAA0017
Hex Head Plug ST/ST 2”BSPT - GOST EExd 11CU
CK E 57 00 V = CKE5700V
All codes marked cover products which are not certified or have any associated approvals

22 23
Hazardous Area Ingress Protection Information
First Number - DUST
0 Non-protected
Second Number - Water
Non-protected
501
Protected against solid foreign objects of
50mm ø and greater.
The object probe, sphere of 50mm ø, shall
not fully penetrate†
12.52
12.5mm ø and greater.
The object probe, sphere of 12.5mm ø,
shall not fully penetrate†
3
The object probe, sphere of 2.5mm ø, shall
not fully penetrate† at all.
4
The object probe, sphere of 1.0mm ø, shall
not fully penetrate† at all.
5
Dust Protected.
Ingress of dust is not totally prevented,
but dust shall not penetrate in a quantity
to interfere with satisfactory operation of
apparatus or to impair safety.
Dust-tight
No ingress of dust
† The full diameter of the object probe shall not pass
through an opening of the enclosure
6
0
Protected against vertically falling water
drops.
Vertically falling drops shall have no harmful
effects.
1
Protected against vertically falling water
drops when enclosure tilted up to 15º.
Vertically falling drops shall have no harmful
effects when the enclosure is tilted at any
angle up to 15º on either side of the vertical.
2
Protected against spraying water.
Water sprayed at an angle up to 60º on
either side of the vertical shall have no
harmful effects.
3
Protected against splashing water.
Water splashed against the enclosure from
any direction shall have no harmful effects.
4
Protected against water jets.
Water projected in jets against the
enclosure from any direction shall have
no harmful effects.
5
Protected against powered water jets.
Water projected in jets against the
enclosure from any direction shall have
no harmful effects.
6
15CM MIN
1M
Protected against the effect of temporary
immersion in water.
Ingress of water in quantities causing harmful
effects shall not be possible when enclosure
is temporarily immersed in water under
standardised conditions of pressure and time.
7
Protected against the effect of continuous
immersion in water.
Ingress of water in quantities causing harmful
effects shall not be possible when enclosure
is continuously immersed in water under
conditions which shall be agreed between
manufacturer and user but which are more
severe than for numeral 7.
8
Temperature Class Maximum Surface Temperature
(Degrees Celsius)
T1 450
T2 300
T3 200
T4 135
T5 100
T6 85
Grouping of Electrical Apparatus for potentially explosive atmospheres
GROUP I ELECTRICAL APPARATUS FOR MINING, TYPIFIED BY THE GAS METHANE (FIREDAMP)
GROUP II ELECTRICAL APPARATUS FOR SURFACE INDUSTRY
Group II may be further divided into three gas groups:
IIA - Representative Gas Propane
IIB - Representative Gas Ethylene
IIC - Representative Gas Hydrogen
Gas Group IIC covers the most hazardous gases and as such, apparatus marked IIC may be used in IIA and IIB applications.
CLASSIFICATIONS
Protection Concepts
*in some countries the methods of protection a q are allowed in Zone 1.
Temperature Class
Explosion protected electrical apparatus must be designed and tested to ensure that the maximum surface temperature of any part(s)
of the products are below the ignition temperature of the explosive atmosphere concerned. Group II electrical apparatus is divided
into temperature classes according to the maximum permissible surface temperature of the apparatus. The preferable classification of
temperatures is given in the following table:-
Unless otherwise specified the maximum ambient temperature is taken to be 400ºC.
STANDARD IEC/EN CODE PROTECTION CONCEPT ZONE
GAS DUST GAS DUST GAS DUST
60079-0 61241-0 General Requirements
60079-1 Ex d Flameproof 1
61241-1 Ex tD Enclosure 20/21/22
60079-2 61241-2 Ex p Ex pD Pressurised 1 21/22
60079-5 Ex q Powder Filled 1
60079-6 Ex o Oil Filled 1
60079-7 Ex e Increased Safety 1
60079-11 61241-11
Ex ia
Ex ib
Ex iaD
Ex ibD
Intrinsic Safety
0
1
20
21
60079-15
Ex nA
Ex nL
Ex nR
Ex nC
Ex nP
Non-sparking
Energy Limited
Restricted breathing
Enclosed break
Pressurisation
2
60079-18 61241-18
Ex ma
Ex mb
Ex maD
Ex mbD
Encapsulation
0
1
20
21
GAS DUST
ZONE 0 20
Zone in which an explosive atmosphere is constantly present, or present for long periods. (Rough guide: hazard
present for more than 1000 hours/year).
ZONE 1 21
Zone in which an explosive atmosphere is likely to occur in normal operation.
(Rough guide: hazard present between 10 1000 hours/year).
ZONE 2 22
Zone in which an explosive atmosphere is not likely to occur in normal operation and if it occurs it will exist only
for a short time. (Rough guide: hazard present for less than 10 hours/year).
Guidance in the classification of hazardous areas is given in BS EN 60079-10:1996, IEC79-10.

Raxton Limited
Westgate, Aldridge, West Midlands WS9 8FS
Tel: +44 (0) 1922 450400 Fax: +44 (0) 1922 450401
Email: enquiries@raxton.co.uk Web site: www.raxton.co.uk
issue 09
A38
A38
A38
A38
A38
A38
A5
A5
A5
A5
A5
A5
A5
A452
A452
A452
A452
A454
A454
A34
A5127
12
10
9
2
1
7
6 8
9
10
6
5 4a
7
7a 4
8
10a
M6
M6
M6M5
M5
M6
M42
M54
M42
LIChFIELd
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BIrMINghAM
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WOLVErhAMpTON
WALSALL
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West
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Sutton
Coldﬁeld
Brownhills
Cannock
WALSALLrOAd
B4154
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B4154
B4152
B4152NOrThgATEB4152
STuBBErS
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dAW ENdLANE
B
4154BOSTY LANE
B4154
WITErLEY
LANE

Raxton brochure 2009 issue09

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Raxton brochure 2009 issue09