Can the Twisted coupling for pneumatic pipes and hoses with BSPT male thread, type B1 be used with plastic hoses without reinforcing sleeves (B12) at 60 bar?

Twisted coupling for pneumatic pipes and hoses with BSPT male thread, type B1 is designed for connecting copper pipes and plastic hoses and features a cutting ring. Although its nominal working pressure is 60 bar, the product description explicitly recommends using reinforcing sleeves (B12) when connecting to plastic hoses. Therefore you should not use plastic hoses without reinforcing sleeves at 60 bar. Bez zastosowania rekomendowanych wkÅadek wzmacniajÄcych istnieje ryzyko wyciekÃ³w, odsÅoniÄcia oplotu lub uszkodzenia koÅcÃ³wki wÄÅ¼a przy ciÅnieniu roboczym, co moÅ¼e prowadziÄ do awarii instalacji i zagroÅ¼eÅ bezpieczeÅstwa. UÅ¼yj B12 zgodnie z instrukcjÄ producenta lub skonsultuj siÄ z nim, jeÅ¼eli zamierzasz stosowaÄ inny sposÃ³b poÅÄczenia.

Is Twisted coupling for pneumatic pipes and hoses with BSPT male thread, type B1 compatible with plastic hoses reinforced differently than B12 at 60 bar?

Twisted coupling for pneumatic pipes and hoses with BSPT male thread, type B1 is designed for copper pipes and plastic hoses with a cutting ring and recommends using reinforcing sleeves (B12) when connecting hoses. At 60 bar, compatibility with differently reinforced plastic hoses than B12 is not guaranteed by the description. Using hoses without the recommended B12 sleeve may risk improper sealing, slipping or hose damage under pressure. For safe operation at 60 bar, use hoses and reinforcement exactly as recommended (B12) or consult the hose manufacturer and coupling supplier for confirmed compatibility and pressure ratings before installation.

Does Twisted coupling for pneumatic pipes and hoses with BSPT male thread, type B1 require B12 sleeves for long-term use at 60 bar?

Yes. for long-term use at 60 bar, Twisted coupling for pneumatic pipes and hoses with BSPT male thread, type B1 requires B12 sleeves when connected to hoses. Explanation: The Twisted coupling for pneumatic pipes and hoses with BSPT male thread, type B1 uses a cutting ring connection intended for copper pipes and plastic hoses. Cutting-ring style fittings bite into tubing; metal tubing (copper) is inherently supported, whereas flexible hoses can deform or collapse under high pressure and repeated cycles. The product description explicitly recommends using reinforcing sleeves (B12) when connecting to hoses. At the stated working pressure of 60 bar, sleeves are necessary to maintain hose shape, ensure the cutting ring can form a reliable seal, prevent extrusion of the hose into the nut, and provide long-term integrity and safety. Without B12 sleeves, fittings on hoses are at greater risk of leaks, blowouts, or premature failure under sustained 60 bar service.

Twisted coupling for pneumatic pipes and hoses with BSPT male thread, type B1

All products, Cutting ring fittings/

Additional information

Material	B – brass (bronze)

BSPT type B1 external thread connection with a cutting ring designed for connecting copper pipes and plastic hoses. When connecting to hoses, the use of reinforcing sleeves (B12) is recommended. Material: nickel-plated brass. Working pressure: 60 bar.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
MW-2201001	Straight connector B1, tube (weight) 4/2 mm, GZ BSPT 1/8"	-	60
MW-2201002	Straight connector B1, tube (weight) 6/4 mm, GZ BSPT 1/8"	-	60
MW-2201003	Straight connector B1, tube (weight) 6/4 mm, GZ BSPT 1/4"	-	60
MW-2201004	Straight connector B1, tube (weight) 8/6 mm, GZ BSPT 1/8"	-	60
MW-2201005	Straight connector B1, tube (weight) 8/6 mm, GZ BSPT 1/4"	-	60
MW-2201006	Straight connector B1, tube (weight) 8/6 mm, GZ BSPT 3/8"	-	60
MW-2201007	Straight connector B1, tube (weight) 10/8 mm, GZ BSPT 1/4"	-	60
MW-2201008	Straight connector B1, tube (weight) 10/8 mm, GZ BSPT 3/8"	-	60
MW-2201009	Straight connector B1, tube (weight) 10/8 mm, GZ BSPT 1/2"	-	60
MW-2201010	Straight connector B1, tube (weight) 12/10 mm, GZ BSPT 3/8"	-	60
MW-2201011	Straight connector B1, tube (weight) 12/10 mm, GZ BSPT 1/2"	-	60
MW-2201012	Straight connector B1, tube (weight) 15/12 mm, GZ BSPT 1/2"	-	60

BSPT type B1 external thread connection with a cutting ring designed for connecting copper pipes and plastic hoses. When connecting to hoses, the use of reinforcing sleeves (B12) is recommended. Material: nickel-plated brass. Working pressure: 60 bar.