Is the Twisted Pneumatic Pipe & Hose Coupling, Straight Type B3 compatible with reinforced plastic hoses using B12 sleeves?

Yes. The Twisted Pneumatic Pipe & Hose Coupling, Straight Type B3 is compatible with reinforced plastic hoses when used with B12 reinforcing sleeves. The product description explicitly recommends reinforcing sleeves type B12 for plastic hoses to enhance stability and extend service life, and the coupling is designed to create secure, leak-free connections between copper pipes and plastic hoses.

Can the Twisted Pneumatic Pipe & Hose Coupling, Straight Type B3 be used with non-reinforced plastic hoses without B12 sleeves for low-pressure applications?

Twisted Pneumatic Pipe & Hose Coupling, Straight Type B3 can physically be connected to non-reinforced plastic hoses for low-pressure applications, but it is not recommended. The product description specifies that reinforcing sleeves type B12 are recommended when using plastic hoses to enhance stability and extend service life. Without B12 sleeves, non-reinforced hoses are more prone to deformation, slipping, and premature wear at the coupling interface, which increases the risk of leaks or failure—even at low pressures. For safe, durable, and leak-free performance, follow the manufacturer’s recommendation and use B12 reinforcing sleeves with plastic hoses.

Coupling screw for pipes and hoses pneumatic straight, type B3

All products, Cutting ring fittings/

Additional information

Material	B – brass (bronze)

Straight connector type B3 with a ring cutting Intended for connecting pipes copper and hoses with plastics. W case connecting with hoses recommended is use ferrule reinforcing (B12). Material: brass nickel-plated. Working pressure: 60 bar.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
MW-2203001	Straight fitting B3, tube (hose) 4/2 - tube (hose) 4/2	-	60	In stock	Enquiry
MW-2203002	Straight fitting B3, tube (hose) 6/4 - tube (hose) 6/4	-	60	In stock	Enquiry
MW-2203003	Straight fitting B3, tube (hose) 8/6 - tube (hose) 8/6	-	60	In stock	Enquiry
MW-2203004	Straight fitting B3, tube (hose) 10/8 - tube (hose) 10/8	-	60	In stock	Enquiry
MW-2203005	Straight fitting B3, tube (hose) 12/10 - tube (hose) 12/10	-	60	In stock	Enquiry
MW-2203006	Straight fitting B3, tube (hose) 15/12 - tube (hose) 15/12	-	60	In stock	Enquiry

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Straight connector type B3 with a ring cutting Intended for connecting pipes copper and hoses with plastics. W case connecting with hoses recommended is use ferrule reinforcing (B12). Material: brass nickel-plated. Working pressure: 60 bar.