Explosion-Proof Thread Adapter (Reducer/Enlarger), BGJ-B Series

Our BGJ-B Explosion-Proof Thread Adapter safely connects different male and female thread sizes in hazardous areas. This Ex d/e certified fitting ensures the integrity of your conduit or equipment connections.


Parámetros técnicos


  • Tipo de producto: Explosion-Proof Thread Adapter / Reducer / Enlarger
  • Model: BGJ-B
  • Material del cuerpo: Nickel-Plated Brass / Stainless Steel
  • Male Thread (External): M / G / NPT (Please specify size)
  • Female Thread (Internal): M / G / NPT (Please specify size)
  • Explosion-Proof Class: Ex db IIC Gb; Ex eb IIC Gb; Ex tb IIIC Db
  • Ingress Protection: IP65
  • Operating Temperature: -40°C to +100°C (Please Confirm)
  • Suitable Zones: Gas: Zone 1 & 2; Dust: Zone 20, 21, & 22
  • Gas Groups: IIA, IIB, IIC

Key Features

  • Male-to-Female Thread Conversion: Uniquely designed with one external (male) and one internal (female) thread to solve thread mismatch issues, acting as a reducer or enlarger between equipment and fittings.
  • Dual Ex d/e Certified Protection: Certified Flameproof (Ex db) and Increased Safety (Ex eb), ensuring it maintains system integrity in Zone 1, 2 (Gas) and Zone 20, 21, 22 (Dust) hazardous locations.
  • Premium Material Options: Available in robust Nickel-Plated Brass or corrosion-resistant Stainless Steel to withstand harsh industrial environments.
  • Customizable Thread Length: Extended thread length can be provided upon request to suit specific installation depths or requirements.
  • Broad Gas Group Compatibility: Suitable for use in IIA, IIB, and the most severe IIC explosive gas environments.
  • Wide Range of Thread Types: Available in Metric, G (BSP), and NPT threads to meet various international standards.

Ordering Information

  • Standard products can be provided. Metric, NPT, and other thread types and sizes can be customized as required. Extended thread length is also available.
  • Example 1 (Straight Adapter): To order a stainless steel adapter with a G1/2″ female thread and G1/2″ male thread, the model is: BGJB-S-(G1/2).
  • Example 2 (Reducer/Enlarger): To order a stainless steel adapter with a G1/2″ female thread and an M20x1.5 male thread, the model is: BGJB-S(G1/2 female M20x1.5 male).

Explosion-Proof Thread Adapter (ReducerEnlarger), BGJ-B Series

Metric Thread Product Number Thread Length

GL(mm)

Thread O.D.

AG(mm)

Overall Length

OL(mm)

Spanner Size(mm)
M16×1.5 BGJBM16 15 16 34 22
M20×1.5 BGJBM20 15 20 34 27
M25×1.5 BGJBM25 15 25 34 32
M32×1.5 BGJBM32 17 32 39 38
M40×1.5 BGJBM40 17 40 39 47
M50×1.5 BGJBM50 20 50 46 57
M63×1.5 BGJBM63 20 63 46 68
M75×2.0 BGJBM75 20 75 47 84
M90×2.0 BGJBM90 20 90 47 98
M115×2.0 BGJBM115 20 115 48 125
American Thread Product Number Thread Length

GL(mm)

Thread O.D.

AG(mm)

Overall Length

OL(mm)

Spanner Size(mm)
NPT3/8 BGJBNPT3/8 15 17.05 34 22
NPT1/2 BGJBNPT1/2 15 21.22 34 27
NPT3/4 BGJBNPT3/4 15 26.56 34 32
NPT1 BGJBNPT1 17 33.28 39 38
NPT1-1/4 BGJBNPT1-1/4 17 41.98 39 47
NPT1-1/2 BGJBNPT1-1/2 20 48.05 46 57
NPT2 BGJBNPT2 20 60.09 46 68
NPT2-1/2 BGJBNPT2-1/2 20 72.69 47 84
NPT3 BGJBNPT3 20 88.60 47 98
NPT4 BGJBNPT4 20 113.97 48 125
Inch Thread Product Number Thread Length

GL(mm)

Thread O.D.

AG(mm)

Overall Length

OL(mm)

Spanner Size(mm)
G3/8 BGJBG3/8 15 16.66 34 22
G1/2 BGJBG1/2 15 20.95 34 27
G3/4 BGJBG3/4 15 26.44 34 32
G1 BGJBG1 17 33.25 39 38
G1-1/4 BGJBG1-1/4 17 41.91 39 47
G1-1/2 BGJBG1-1/2 20 47.80 46 57
G2 BGJBG2 20 59.61 46 68
G2-1/2 BGJBG2-1/2 20 75.18 47 84
G3 BGJBG3 20 87.88 47 98
G4 BGJBG4 20 113.03 48 125

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