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1/2" BSPP to 1/2" NPT Thread Adapter: Nickel Plated Brass (ATEX)
Part Number AD-U-1-1-55-29
1/2" BSPP to 1/2" NPT Thread Adapter: Nickel Plated Brass (ATEX)
1/2" BSPP (male) to 1/2" NPT (female) Thread Adapter: Nickel Plated Brass (ATEX)
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Male x Female Thread Adapter: Exd/Exe, ATEX, IECEx, GOST-R, CSA

Redapt's AD-U series of Adapters provide a method of matching electrical threadforms on hazardous area approved equipment.  
Ex approval maintains hazardous location certification and the overall integrity of the installation.

Manufactured from hexagon material to facilitate an easy installation, this Adapter will convert holes which fit size 1/2" BSPP male threads to a female 1/2" NPT threaded hub.

Supplied complete with a captive O-Ring seal located within a recess on the face of the fitting, this provides protection from environmental damage, ensures the O-Ring is not displaced during installation and optimizes ingress protection.

The AD-U series of Adapters are certified to protection concepts Exd "Flameproof" and Exe "Increased Safety" for use in Zone 1 and Zone 2 applications.  Approved to the latest international standards, ATEX (CENELEC), IECEx and GOST-R hazardous area certificates are available.  Additionally, CSA approval certificates can be supplied to cover use in North American and Canadian Class I, Division 1 and Class I, Zone 1 applications.

While designed for use within the hazardous locations present in oil, gas and petrochemical installations, Redapt's Thread Adapters are also commonly used in Industrial & Commercial applications providing a quick and easy solution when connecting to international components or machinery.

Technical Data Table:

Protection Method
Exd Flameproof / Exe Increased Safety
Ingress Protection Maintained IP66 / IP67 / IP68 to a depth of 2 meters
CSA Enclosure Type (NEMA) 4X 6P
Impact Resistance
20 Nm
Limiting Temperature Range
-20C to 80C w/ Nitrile O-Ring (supplied as standard)
*Temperature ranges vary depending upon requested O-Ring material
Brass CZ121
O-Ring Material
Standards Approved To
IEC 60079-0, IEC 60079-1, IEC 60079-7, IEC 61241-0, IEC 61241-1
I M2, II 2 GD, Ex d I/IIC Mb Gb, Ex e I/IIC Mb Gb, Ex tb IIIC Db, IP6X
IECEx Approval
IECEx SIR 12.0016X
Ex d I/IIC Mb/Gb, Ex e I/IIC Mb/Gb, Ex tb IIIC Db, IP6X
GOST-R Approval

RU ?-GB.??06.?00106 Russian
RU ?-GB.??06.?00106 English

RU ?-GB.??06.?00106 Annex Document English

CSA Approval
1248014 (LR 106084-2)
Ex de I & IIC IP66/67/68 Class I Zone 1 & 2 Groups A, B, C & D.
Class I, Division 1 & 2; Groups A, B, C & D; Class II, Groups E, F & G;
Class III; CSA Enclosure Type 4x/6P
Installation Instructions


Product Datasheet

Data Sheet - Metallic Adapters & Reducers

Looking for a different size or material?  Other Ex fittings?
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Explosion Proof Fittings or call (888) 835-0868
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