Hasco hose fittings Germany Hasco models Hasco prices

Hasco hose fittings are components in hydraulic systems used to connect pipelines or mount pipelines onto hydraulic elements. This is a general term for connectors that can be assembled and disassembled in fluid paths. Main types include: welded, bite-type (ferrule), crimped, and flared.

Hasco hose fittings composition

What is a stainless steel bite-type (ferrule) fitting? A stainless steel bite-type fitting is a product that provides reliable connection, high pressure resistance, temperature resistance, and good sealing performance. It is used in industrial, enterprise, and daily life applications to ensure operational safety. As market demand for stainless steel bite-type fittings increases, these products are applied in various fields. A bite-type tube fitting consists of three parts: the fitting body, the ferrule, and the nut. When the ferrule and nut are placed on the steel tube and inserted into the fitting body, tightening the nut causes the front outer side of the ferrule to seat against the conical surface of the fitting body. The inner cutting edge uniformly bites into the seamless steel tube, forming an effective seal. Bite-type fittings feature corrosion resistance, high pressure resistance, simple installation, and durability.

Hasco hose fittings working principle

1. The basic structure of this type of fitting is relatively simple, consisting of only three basic components: the fitting body, the ferrule, and the nut. The main component is the ferrule, which is a metal ring with a cutting edge at its front end. International standard GB3764-83 recommends that the cutting edge have a uniform I shape. 2. The ferrule, which provides the primary sealing function in this fitting, moves axially along the internal tapered bore of the fitting body under the axial force exerted by the tightening nut R. Simultaneously, the cutting edge undergoes radial contraction due to the radial reaction force R', eliminating the gap between the ferrule and the tube so that the cutting edge contacts the tube surface. At this point, the tube no longer rotates; continuing to rotate the nut causes the ferrule's cutting edge to bite firmly into the tube, ensuring a seal. Another sealing interface is formed where the 13° chamfer at the tip of the ferrule's cutting edge intersects with the outer circumference (ridge), making tight contact with the annular conical surface of the fitting body to create a sealing band; this is the primary sealing area of the ferrule-type seal. The rear 86° conical surface of the ferrule undergoes radial contraction under the force F, gripping the connected tube tightly, while the middle section bulges slightly. This gives the ferrule axial elastic deformation, which is beneficial for both ferrule sealing and preventing the tightening nut from loosening.

Hasco hose fittings cleaning

To ensure the cleanliness of the lubrication system and supply clean grease to mechanical equipment bearings, pre-installed piping must be dismantled and cleaned. Cleaning methods include kerosene cleaning and pickling. Kerosene cleaning objects and methods: Copper tubes and stainless steel tubes; steel tubes that have been pickled before pre-installation and have no rust or iron oxide scale on the inner wall; tube fittings contaminated during pre-assembly. Dismantle the tubes and fittings requiring cleaning. Wipe the inside of the tubes clean with a cloth soaked in kerosene. Soak both ends and the fittings in kerosene for cleaning. Then, apply machine oil or fill with grease inside the tubes, and seal both ends tightly for storage. After cleaning, there must be no visually visible contaminants. Special attention must be paid to thoroughly cleaning weld slag from the inner walls of welded joints. During disassembly, transportation, and pickling, take care not to damage the piping, threads, and sealing surfaces. Use tape or plastic caps to seal openings. Protect threaded areas with acid-resistant materials such as plastic tape or rubber tape. Alternatively, after degreasing and water washing, apply dry oil to the threads before rust removal in acid solution to prevent acid erosion. During pickling, ensure that matching marks on the tubes do not disappear or become blurred.

Weidou Intelligent Technology professionally sells German Hasco oil pipe fittings, Hasco hose fittings, Hasco tube fittings, Hasco pipe fittings, Hasco rotary joints, Hasco metal fittings, Hasco brass fittings, Hasco stainless steel fittings, Hasco plastic fittings, Hasco hydraulic hose fittings, Hasco adapter fittings, Hasco threaded tube fittings, Hasco straight fittings, Hasco swivel fittings, Hasco bite-type (ferrule) fittings. Hasco original imports from Germany. Welcome customers to inquire and order.