Exd Exe Stopping Plugs | Hazardous Area | Flameproof & Increased Safety Stopping Plugs

Electrical Thread Conversions & Cable Installation Solutions for Hazardous Areas & Explosion Proof/Protection Applications

Exe Exd Stopping Plugs

Flameproof & Increased Safety Stopping Plugs

Raxton Exd/Exe hazardous area stopping plugs are designed to close any unused entries in electrical equipment without revoking existing certification – Stopping Plugs are ATEX Certified.

Exe Exd stopping plugs, manufactured by Raxton, come in five different designs: Tamperproof Plug Type CF, RX Plug Type CB, Hexagon Head Plug Type CK, Dome Head Plug Type CQ & Hollow Hexagon Head Plug Type CY.

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. They can be fitted with a washer to increase the IP rating of the assembly.

Dome Head Plug Type CQ – Can be offered as an alternative to the Hexagon Headed version.

Hollow Hexagon Head Plug Type CY – A hollow version of the Hexagon Head Plug but still with Exd/Exe certification.

Raxton flameproof (Exd) and increased safety (Ex e) stopping plugs are marked with the applicable approval number and size.

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.

Materials

Brass: BS2874: 1985 CZ121
Mild Steel: BS970 PT3 230M07
Stainless Steel: BS970 PT3 316 S11
Aluminium: BS1474/1 6082 T4 or T6
Aluminium Bronze: BS1400 1985 AB2 or BS2874:1986 CA104

Raxton Exe & Exd stopping plugs are available in a variety of finishes including Nickel, Electro Zinc, Zinc Passivated, Chromatised, Electroless Nickel and Anodised.

Exd exe stopping plug dimensions

The ATEX Certified stopping plugs are suitable for both Zone 1 & Zone 2 hazardous area installations.

Thread	RX & Tamperproof Allen Key (Type CF & CB)	Hex Head A/F (mm) (Type CK & CY)	Dome Head Allen Key (Type CQ)	Dome Head Dia (mm) (Type CQ)	Slotted Head A/F (mm) (Type CS)
M16	6.0	29.0	6.0	20.5	19.0
M20	10.0	23.3	10.0	25.0	23.0
M25	10.0	28.0	10.0	30.0	28.0
M32	10.0	37.5	10.0	38.0	36.0
M40	19.0	47.0	19.0	46.0	44.0
M50	19.0	56.0	19.0	56.0	54.0
M63	19.0	70.0	19.0	69.0	67.0
M75	19.0	80.0	19.0	81.0	N/A

Hazardous Areas

Adaptors | Flameproof & Increased Safety

The hazardous area adaptors are certified and approved to the following international hazardous area classifications and are Flameproof & Increased Safety Standards.

stopping plug Thread selection

Isometric (ISO) to BS3643:1981 and ISO 965 Pts 1 & 3
Imperial (ET) to BS31:1940 (1979)
National Pipe Thread (NPT) to ANSI/ASME:1983
British Standard Pipe (BSP) to BS21:1985
Pg to DIN 40430:1971

These stopping plug selection tables identify the standard thread variations produced and are designed to assist the user in selecting the correct hazardous area Exe/Exd stopping plug suitable for use in Zone 1 or Zone 2 potentially explosive atmospheres according to the ATEX Directive.

Isometric to BS 3643:1981

Adaptor Size	Major Diameter (mm)	Threads per Inch	Pitch
16mm (M16)	16	16.93	1.50
20mm (M20)	20	16.93	1.50
25mm (M25)	25	16.93	1.50
32mm (M32)	32	16.93	1.50
40mm (M40)	40	16.93	1.50
50mm (M50)	50	16.93	1.50
63mm (M63)	63	16.93	1.50
75mm (M75)	75	16.93	1.50

National Pipe Thread to ANSI/ASME: 1983

Adaptor Size	Major Diameter (mm)	Threads per Inch	Pitch
1/8″ NPT	10.30	27	0.94
1/4″ NPT	13.72	18	1.41
3/8″ NPT	17.15	18	1.41
1/2″ NPT	21.34	14	1.81
3/4″ NPT	26.67	14	1.81
1″ NPT	33.40	11 1/2	2.20
1 1/4″ NPT	42.16	11 1/2	2.20
1 1/2″ NPT	48.26	11 1/2	2.20
2″ NPT	60.33	11 1/2	2.20
2 1/2″ NPT	73.03	8	3.175
3″ NPT	88.90	8	3.175
4″ NPT	114.30	8	3.175

British Standard Pipe to BS 21:1985

Adaptor Size	Major Diameter (mm)	Threads per Inch	Pitch
1/8″ BSP	9.73	28	0.91
1/4″ BSP	13.16	19	1.34
3/8″ BSP	16.66	19	1.34
1/2″ BSP	20.96	14	1.81
3/4″ BSP	26.44	14	1.81
1″ BSP	33.25	11	2.31
1 1/4″ BSP	41.91	11	2.31
1 1/2″ BSP	47.80	11	2.31
2″ BSP	59.61	11	2.31
2 1/2″ BSP	75.18	11	2.31
3″ BSP	87.88	11	2.31
4″ BSP	113.03	11	2.31

Adaptors, Reducers, Stopping Plugs & Breather Drains

For further information about the complete range of Raxton electrical thread conversion and flameproof/increased safety products for use with cables and ATEX electrical enclosures installed in potentially explosive atmospheres or hazardous area locations please refer to the information below:

Exd/Exe Reducers	Exd/Exe Male to Male & Female to Female Adaptors	Exd/Exe Right Angle Adaptors
Exd/Exe Swivel Adaptors	Exd/Exe Y and T Adaptors	Exd/Exe Stopping Plugs
Exd/Exe Breather Drains	Exd/Exe Compound Stopper Box	Exd/Exe Unions

➡ View all Exd Exe Adaptors, Reducers, Stopping Plugs & Breather Drain Plugs | ATEX Hazardous Area

Exd Exe Adaptors, Reducers, Stopping Plugs & Breather Drain Plugs | ATEX Hazardous Area

THORNE & DERRICK

Thorne & Derrick are Specialist Distributors of Hazardous Area & Explosion Proof Equipment with IECEx & ATEX Certifications to the onshore and offshore oil, gas, petrochemicals and process industries.

We supply major UK and international infrastructure projects and also MRO (Maintenance, Repair, Operations) requirements for both planned and unplanned plant shutdowns – we react with a rapid response to customer demand to ensure downtime is minimised and reliable Power, Light & Heat is restored or provided.