Is the ISO 6150B quick coupling plug with BSP female thread, GROMELLE DN 5.5 compatible with standard 1/4" BSP pneumatic hoses and fittings?

Short answer: Most likely yes, but check threads and sealing method. Explanation: The ISO 6150B quick coupling plug with BSP female thread, GROMELLE DN 5.5 is designed to the ISO 6150B (also called ARO/CEJN/ISO B) quick-coupling family and has an internal BSP (British Standard Pipe) female thread. Standard 1/4" BSP pneumatic hoses and fittings use 1/4" BSP male threads, so mechanically the male 1/4" BSP fitting should screw into the GROMELLE DN 5.5 female thread. Operating limits (16 bar working pressure, -20 to +100 Â°C) and flow (700 l/min at Pe 6 bar) are within typical pneumatic system ranges. Caveats: - Confirm the nominal size: ISO 6150B DN 5.5 corresponds to roughly 1/4" BSP in practice, but verify the supplierâs datasheet to ensure the thread is exactly 1/4" BSP (BSPP vs BSPT). ISO quick couplers normally use parallel (BSPP) threads for the female body; mating male threads must match type. - Check sealing method: BSPP often requires an O-ring face seal in the coupling or a sealing washer; BSPT (tapered) seals by thread. Ensure your male fittingâs sealing method matches the GROMELLE plugâs design. - Material and pressure: Nickel-plated brass and galvanized steel are compatible with typical pneumatic hoses; respect the 16 bar max working pressure. If you need, provide the male fitting part number or a photo/spec sheet and Iâll confirm exact compatibility.

Does the ISO 6150B quick coupling plug with BSP female thread, GROMELLE DN 5.5 support high-cycle pneumatic operations at 16 bar?

Yes. The ISO 6150B quick coupling plug with BSP female thread, GROMELLE DN 5.5 is rated for a working pressure of 16 bar and an operating temperature range of -20Â°C to +100Â°C, making it suitable for high-cycle pneumatic use at 16 bar. Its compact, very low-weight construction (nickel-plated brass connection, galvanized steel plug) and specified flow rate (700 l/min at Pe = 6 bar, Îp = 0.6 bar) indicate adequate performance for typical pneumatic cycles. Ensure compatibility with your systemâs actual flow, pressure peaks, and duty-cycle requirements, and verify sealing and wear characteristics under your specific high-cycle conditions.

Can the ISO 6150B quick coupling plug with BSP female thread, GROMELLE DN 5.5 be used for vacuum applications?

Probably not recommended for true vacuum applications. Reasoning: - The ISO 6150B quick coupling plug with BSP female thread, GROMELLE DN 5.5 is specified "for air" with working pressure up to 16 bar and an indicated flow/pressure performance (700 l/min at Pe = 6 bar, Îp = 0.6 bar). The datasheet provides pressure and flow ratings for positive pressure use, not for vacuum service. - Vacuum suitability depends on sealing design, leak tightness (leak rate), materials and assembly tolerances. The listed materials (nickel-plated brass connection, galvanized steel plug) and the compact design are common for pneumatic couplings but do not guarantee a low leak rate required for vacuum. - Operating temperature range (-20Â°C to +100Â°C) is acceptable for many vacuum systems, but the absence of a specified maximum allowable external leak rate or a rating in mbarÂ·L/s (or indicated suitability for vacuum) is a key omission. - Quick disconnect couplings designed for compressed air typically use elastomer seals and clearance fits that permit small but unacceptable leaks under vacuum. Also, internal thread/plug geometry may entrain air when disconnected. Recommendation: - Do not assume suitability for vacuum unless the manufacturer explicitly certifies vacuum compatibility or provides measured leak rates at the target vacuum level. - If you need vacuum service, contact GROMELLE for leak-rate data or a vacuum-rated variant, or choose couplers specified for vacuum (with metal-to-metal seals or vacuum-rated elastomers and published leak rates).

ISO 6150B quick coupling plug with BSP female thread, GROMELLE DN 5.5

All products, General-purpose low-pressure quick couplings/

Additional information

Material	CS – steel (cast iron)

Gromellee quick coupling plug type ISO 6150B DN 5.5 with internal BSP thread, compact design, and very low weight, for air. Working pressure: 16 bar. Operating temperature: from -20°C to +100°C. Flow rate: 700 l/min, Pe = 6 bar, Δp = 0.6 bar. Material: nickel-plated brass (connection), galvanized steel (plug).

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]	Enquiry
GR-GA0066214	ISO 6150B quick coupling plug DN5.5, 1/4" BSP thread, galvanized steel	-	16
GR-GA0066238	ISO 6150B quick coupling plug DN5.5, 3/8" BSP thread, galvanized steel	-	16

Gromellee quick coupling plug type ISO 6150B DN 5.5 with internal BSP thread, compact design, and very low weight, for air. Working pressure: 16 bar. Operating temperature: from -20°C to +100°C. Flow rate: 700 l/min, Pe = 6 bar, Δp = 0.6 bar. Material: nickel-plated brass (connection), galvanized steel (plug).