Drei Bond hose fittings Germany Drei Bond model Drei Bond price

Drei Bond hose fitting is a type of hose fitting mainly composed of three components. Metal hose fittings are used in many places. The main component of the metal hose fitting, the bendable part, is made of braided metal wire. Metal hose fittings offer excellent performance and come in a wide variety. Different types of metal hose fittings have different characteristics, structures, and maximum temperature ratings.

Drei Bond hose fitting differences

The difference between internal thread and external thread is: internal thread is female thread, with the thread located inside the hole; external thread is male thread, with the thread located on the outer surface of the cylinder. Internal thread and external thread are industry terms referring to the thread mating process used in screw and nut connections. Screw and nut mating allows for easy disassembly and convenient installation, and is one of the commonly used connection and fastening processes in mechanical equipment, piping, and metal structure engineering installation. For the same type of pipe fitting, different names are used; to remember easily: internal connector has external threads; external connector has internal threads. Threaded connectors are generally used in pipelines for connection purposes. External thread refers to the threaded port on the outside of pipes, etc., which can usually be touched directly. Internal thread refers to the threaded port inside pipes, etc., which generally requires reaching inside to touch. In industry, you may also encounter right-hand thread and left-hand thread. Right-hand thread tightens in the direction of left-loose, right-tight; this type of thread is common in daily life, with screws being the most typical example. Left-hand thread must be tightened in the reverse direction; this type of thread is not very common in daily life but is more frequently seen in specialized fields such as ventilation.

Drei Bond hose fitting classification

Connector structural forms are broadly divided into three categories: spiral, flange, and quick-connect. 1, Threaded type: For metal hose fittings with nominal diameters below 50 mm operating under high working pressure, threaded types are predominantly used. After tightening the threads, the internal and external tapered surfaces of the two fittings mate tightly to achieve sealing. The cone angle is generally 60 degrees, though 74 degrees is also used. This structure offers good sealing, but concentricity of the two mating parts must be ensured during installation. To address common issues in practical engineering such as repeated assembly/disassembly and difficulty in achieving concentricity, the fitting can also be designed with a tapered surface mating with a spherical head. 2, Flange type: For metal hose fittings with nominal diameters above 25 mm operating under general working pressure, flange types are predominantly used. They seal via a tongue-and-groove mating arrangement. A loose flange, capable of radial rotation and axial sliding, connects the two bodies under the tension of tightening bolts. This structure provides good sealing performance but is difficult to machine, and the sealing surface is prone to damage. For special applications requiring quick release, the holes for the tightening bolts can be slotted to create a quick-release flange. 3, Quick-connect type: For various metal hose fittings with nominal diameters below 100 mm where rapid assembly and disassembly are required, quick-connect types are generally adopted. They commonly use an "O"-shaped sealing ring made of fluoroplastic or special rubber. When the handle is moved by a certain angle, it acts like the claws of a multi-start thread being locked; the tighter the "O"-shaped sealing ring is compressed, the better the sealing performance. This structure is most suitable for fire scenes, battlefields, and other situations requiring rapid installation and removal. A set of fittings can be connected or disconnected within seconds without any special tools.

Drei Bond hose fitting differences

The difference between internal thread and external thread is: internal thread is female thread, with the thread located inside the hole; external thread is male thread, with the thread located on the outer surface of the cylinder. Internal thread and external thread are industry terms referring to the thread mating process used in screw and nut connections. Screw and nut mating allows for easy disassembly and convenient installation, and is one of the commonly used connection and fastening processes in mechanical equipment, piping, and metal structure engineering installation. For the same type of pipe fitting, different names are used; to remember easily: internal connector has external threads; external connector has internal threads. Threaded connectors are generally used in pipelines for connection purposes. External thread refers to the threaded port on the outside of pipes, etc., which can usually be touched directly. Internal thread refers to the threaded port inside pipes, etc., which generally requires reaching inside to touch. In industry, you may also encounter right-hand thread and left-hand thread. Right-hand thread tightens in the direction of left-loose, right-tight; this type of thread is common in daily life, with screws being the most typical example. Left-hand thread must be tightened in the reverse direction; this type of thread is not very common in daily life but is more frequently seen in specialized fields such as ventilation.

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