PMA hose connectors Germany PMA models PMA prices

PMA hose connectors are widely used in high-pressure piping applications in industrial fields, such as shipbuilding, offshore oil, metal processing, and mining. Flared tube fittings are suitable for hydraulic, lubrication, high-pressure water flushing, and high-pressure air pipelines. Flared tube fittings have been certified by many auditing bodies; they offer high reliability, inherent cleanliness, and strong flexibility, with faster and simpler pre-assembly and installation. Flared connections require no welding, saving subsequent processes such as pickling and flaw detection. Flared tube fittings are a type of quick connector suitable for various pipe fittings and pipes with a nominal pressure not exceeding 32MPa. Introduction to flared connection manufacturers: widely used in industries such as oil refining, chemical, light industry, textiles, national defense, metallurgy, aviation, automotive, pharmaceuticals, machinery, shipbuilding, natural gas, and CNG refueling stations.

PMA hose connector selection

Depending on the application, there is a rich variety of body materials, sizes, and installation shapes. Gas quick connectors are mainly used for general fuse piping, featuring high flow rate, durability, and corrosion resistance. Body materials, sizes, and installation shapes are diverse. Gas-liquid common quick connectors are mainly used for piping in ion cooling devices, brewing equipment, cutting oil piping for machine tools, and car washing machines. Connected via simple lever operation, they can transport liquids, gases, powders, etc. Body materials, sizes, and installation shapes are diverse. Hydraulic quick connectors are mainly used for hydraulic devices and construction machinery. The body material should be metal resistant to vibration and impact. Inert gas quick connectors are used for vacuum piping and compressor pressure tests. Both the sleeve and plug have built-in automatic shut-off valves suitable for vacuum applications, maintaining a vacuum degree of 1 × 3 10Pa in the separated state. Quick connectors for cooling water and warm oil are mainly used for general mold interfaces. They thoroughly simplify mold exchange operations, enhance rust prevention, and come in various types.

PMA hose connector advantages

By changing the sealing connection structure of pipe connectors, it fundamentally solves the water leakage problem in the connection between pipe connectors and pipe materials; it ensures the sealed connection between pipe connectors and steel-plastic composite pipes. Advantages of PSP flared connections. The device consists of a pipe fitting body with an internal stop shoulder, an adhesive layer coated on its inner wall to bond the inner wall to the outer wall of the connected composite pipe, a sealing ring installed at the internal stop shoulder, and an inner core sleeve inserted into the ring and the connected composite pipe. Advantages of PSP flared connections. It features a simple structure and easy installation operation. The sealing ring undergoes lateral deformation under the compression of the inner core sleeve to create a double seal, and it automatically seals upon swelling with water, making the connection and sealing more reliable. The specifications for matching steel pipes are flexible. After welding to the pipeline, it features reliable connection and good sealing performance.

PMA hose connector installation

Installation is the most critical step, directly affecting sealing reliability. Specialized pre-assembly tools are generally required. Connectors with small diameters can be pre-assembled on a vise. The specific method is to use a connector body as the main body and press the nut and ferrule onto the pipe. Main types include ferrule-type straight-through pipe connectors, ferrule-type end straight-through pipe connectors, and ferrule-type tee pipe connectors. The depth of the tapered hole in these connector bodies often varies, resulting in situations where a pipe pre-assembled on a straight-through connector body is used for connection to a tee connector body, potentially causing loose spherical contact between the ferrule and the inner conical surface of the connector body, leading to leakage. This issue is often overlooked. The correct approach is that if one end of the pipe is connected with a certain type of connector body, the corresponding connection end should be pre-assembled with the same type of connector. This maximizes the avoidance of leakage problems. Try to maintain the coaxiality of the pipe and the connector body; excessive skewing of the pipe will also cause sealing failure. Pre-assembly force should not be too high. The inner cutting edge of the ferrule should just embed into the outer wall of the pipe, and the ferrule should not show obvious deformation. If the ferrule deforms severely during pre-assembly, it will lose its sealing function.

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