PB Series – ISO 6150-B Pneumatic Male Plug
The PB Series quick coupling male plugs are engineered to meet the ISO 6150-B international standard, ensuring reliable performance and global compatibility in pneumatic applications. Designed for use in a wide range of industrial and automotive air systems, these coupler plugs provide secure, efficient, and leak-free connections for compressed air tools, hoses, and machinery.
Our PB Series ISO 6150-B male plugs are precision-manufactured for performance and reliability. Whether you’re sourcing components for OEM integration or replacing parts in your workshop, our quick coupler plugs deliver long-lasting service and consistent performance under demanding conditions.
Key Features
ISO 6150-B Standard Compliance
Fully interchangeable with other couplings conforming to the ISO 6150-B profile, making it ideal for global OEM and aftermarket needs. Other Standard A-A-59439 (MIL-C-4109F)
Durable Construction
Manufactured from high-quality materials such as carbon steel, brass, or stainless steel, offering excellent resistance to corrosion, wear, and high flow pressures.
Versatile Connection Options
Available in various thread types and sizes, including NPT, BSPT, BSPP, and metric threads, to suit different regional and industry requirements.
High Air Flow Performance
Optimized internal design ensures minimal pressure drop and maximized air delivery for efficient pneumatic tool operation.
Secure and Quick Connection
Designed for easy one-hand operation when paired with compatible PB Series or ISO 6150-B sockets, reducing downtime and increasing productivity.
Dimensions
The ISO 6150 Series B standard specifies quick-connect couplings commonly used in pneumatic systems. This standard includes couplings with nominal diameters of 7 mm, 12 mm, 15 mm, 17 mm, and 23 mm. Detailed dimensions and tolerances for each size are provided in the table below.
| Nominal diameter | d1 (0.1/-0.2) | d2 (-0.1/-0.2) | d3 (-0.05/-0.15) | d6 (-0.1/-0.2) | l1 min. | l5 (-0.1/-0.15) | l6 (+0.1/-0.15) | l7 (+0.1/-0.15) | r (+0.1/-0.15) |
|---|---|---|---|---|---|---|---|---|---|
| 7 | 4.55 | 6.5 | 4.45 | 7 | 20 | 5 | 8 | 2.5 | 0.4 |
| 12 | 8.2 | 11 | 7.9 | 11.9 | 23.6 | 5.4 | 9.4 | 2.8 | 0.4 |
| 15 | 11 | 14.4 | 11.6 | 15.2 | 26.1 | 7.65 | 12.3 | 2.6 | 1 |
| 17 | 14.4 | 16.8 | 14.3 | 16.8 | 34.8 | 9.55 | 14.7 | 2.8 | 0.4 |
| 23 | 20.55 | 23 | 20.45 | 23 | 35 | 6.5 | 10.7 | 3 | 1 |
Although ISO 6150 Series B defines nominal diameters of 7 mm, 12 mm, 15 mm, 17 mm, and 23 mm, these couplings are more commonly referenced by imperial sizes—1/4″, 3/8″, and 1/2″—especially by manufacturers and users in the United States. In practice, most customers specify quick couplings based on compatibility with well-known brands such as Parker or Dixon. To meet these market expectations, our PB Series is available exclusively in 1/4″, 3/8″, and 1/2″ sizes, fully interchangeable with Parker’s Industrial Interchange nipples.
1/4″ PB Series Quick Connect Nipple
The 1/4″ PB quick coupling is fully interchangeable with 1/4″ size male connectors from the Parker Industrial Interchange Nipples and the Dixon DF Series. Available in brass, carbon steel, or stainless steel, this coupling offers versatile compatibility and robust performance. The opposite end is customizable, offering either a standard threaded connection or a pagoda (hose barb) type pipe connection to suit various installation needs.
3/8″ PB Series Quick Connect Nipple
The 3/8″ PB quick coupling is fully interchangeable with 3/8″ size male connectors from the Parker Industrial Interchange Nipples and the Dixon DF Series. Available in brass, carbon steel, or stainless steel, this coupling offers versatile compatibility and robust performance.
1/2″ PB Series Quick Connect Nipple
The 1/2″ PB quick coupling is fully interchangeable with 1/2″ size male connectors from the Parker Industrial Interchange Nipples and the Dixon DF Series. Available in brass, carbon steel, or stainless steel, this coupling offers versatile compatibility and robust performance.
We currently do not stock 3/4″ PB series pneumatic quick connectors. Pneumatic connectors were not part of our core product line initially, as our main focus was on hydraulic quick connectors. However, due to growing customer demand, we began developing a range of pneumatic connectors to support their needs. Over time, our pneumatic product line has become increasingly comprehensive.
If you require a 3/4″ PB series connector, we have the capability to develop and produce it quickly to meet your specifications.
Common Applications
- Industrial air tools and assembly lines
- Automotive maintenance and repair
- Pneumatic machinery and automation systems
- Air compressors and hose assemblies
- General workshop and factory use
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