TEAFLEX hose fittings German TEAFLEX models TEAFLEX prices

TEAFLEX hose fittings: In piping systems, elbows are fittings that change the direction of the pipeline. Classified by angle, the three most common types are 45° and 90°180°. Additionally, depending on engineering requirements, other non-standard angle elbows such as 60° are included. Elbow materials include cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals, and plastics. Connection methods to pipes include: direct welding (the most common method), flange connection, hot melt connection, electrofusion connection, threaded connection, and socket connection. According to production processes, they can be divided into: welded elbows, stamped elbows, push-formed elbows, cast elbows, butt-welded elbows, etc. Other names: 90 degree elbow, right-angle elbow, etc.

TEAFLEX hose fitting classification

Hydraulic terminology refers to components in hydraulic systems that connect pipelines or mount pipelines onto hydraulic elements. This is a general term for connectors that can be installed and removed within fluid pathways. Main types include: welded, ferrule-type, and flared types. Connector accessories include: nuts, ferrules, flared cores, flared sleeves, and flared nuts. Types of connectors include: end straight connectors, straight connectors, tee connectors, elbows, connectors with live nuts, hinged connectors, plugs, transition connectors, etc. Composition of double ferrule connectors: front ferrule, rear ferrule, nut. Common materials are stainless steel and copper, with metric, American, and British thread standards. NPT, PT, and G are all pipe threads. NPT is the abbreviation for National (American) Pipe Thread, belonging to the American standard 60 degree tapered pipe thread, used in North America. The national standard can be referenced in GB/T12716-1991. PT is the abbreviation for Pipe Thread, a 55 degree sealing conical pipe thread, part of the Whitworth thread family, widely used in Europe and Commonwealth countries. It is commonly used in water and gas pipeline industries, with a taper ratio specified as 1:16. The national standard can be referenced in GB/T7306-2000. G is a 55 degree non-sealing pipe thread, also part of the Whitworth thread family. Marked as G, it represents cylindrical threads. The national standard can be referenced in GB/T7307-2001. Additionally, markings such as 1/4, 1/2, and 1/8 in threads refer to the diameter of the thread size, measured in inches. Industry professionals often use fractions to describe thread sizes; one inch equals eight parts, so 1/4 inch corresponds to two parts, and so on. G seems to be the general term for pipe threads (Guan), where divisions like 55 and 60 degrees are functional, commonly referred to as pipe cylinders. That is, the thread is machined from a cylindrical surface. ZG is commonly called a pipe cone, meaning the thread is machined from a conical surface. Most water pipe connectors follow this design, marked under the old national standard as Rc. Metric threads are expressed by pitch, while American and British threads are expressed by the number of threads per inch, which is their primary distinction. Metric threads have a 60 degree equilateral tooth profile, British threads have an isosceles 55 degree tooth profile, and American threads have a 60 degree profile. Metric threads use metric units, while American and British threads use imperial units. Pipe threads are primarily used for connecting pipelines, with tight mating between internal and external threads, available in both straight and tapered forms. Nominal diameter refers to the diameter of the connected pipeline, and clearly, the major diameter of the thread is larger than the nominal diameter. 1/4, 1/2, and 1/8 are nominal diameters of imperial threads, measured in inches.

TEAFLEX hose fitting differences

The difference between internal threads and external threads lies in: internal threads belong to female threads, with threads located inside the hole; external threads belong to male threads, with threads located on the outer surface of the cylinder. Internal and external threads are industry terms, referring to the thread mating process used when connecting screws and nuts. Screw and nut mating is easy to disassemble and convenient to install, making it one of the frequently used connection and fixation processes in mechanical equipment, pipelines, and metal structure engineering installation. For the same type of pipe fitting with different names, remember simply: internal fittings are external screws; external fittings are internal screws. Threaded fittings are generally used for pipelines, serving a connecting role. External threads: refer to threads on the outside of pipelines, etc., generally directly touchable. Internal threads: refer to threads inside pipelines, etc., generally requiring reaching inside to touch. Industrially, you may also encounter right-hand and left-hand threads. Right-hand threads: tighten in the direction of left-loose right-tight; these are very common in daily life, with screws being the most common example. Left-hand threads: must be tightened in the reverse direction; these are not very common in daily life but are seen more in specialized fields, such as ventilation.

TEAFLEX hose fitting structure

When both ends are closed and not connected: When the sleeve of the female body moves to the other end, the stainless steel balls automatically roll outward, and the male body disconnects under the combined spring force of the valves in the female and male bodies. The valves of the male and female bodies close respectively, instantly blocking fluid flow. When connected: When the male body is inserted into the female body, the sleeve returns to its original position under the action of the spring, and the steel balls roll to lock the male body tightly. At the same time, the valves of the female and male bodies push each other open, allowing fluid flow. The O O-ring can completely block fluid leakage. When both ends are open and not connected: When the sleeve of the female body is pushed to the other end, the steel balls automatically roll outward, so the male body is removed. Since neither the male nor the female body has valves, fluid flows outward. When connected: When the male body is inserted into the female body, the sleeve is pushed by its spring force to the previous position, causing the steel balls to lock. Fluid flows, and the O O-ring prevents liquid leakage.

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