Water supply fittings 1

We produce PVC water supply fittings, and the plastic extruder is one of the important equipment for molding and processing. Generally speaking, the processing process of PVC water supply fittings is somewhat similar, but in actual production, we must use different plastic extruders or screws according to the different resins to produce various types of PVC water supply fittings. Most single screw extruders are either gradual or abrupt, with the depth of the screw groove gradually decreasing from the feeding section to the metering section; The mutation type screw extruder means that the depth of the screw groove remains unchanged from the feeding section to the measuring section, but in the melting section, the depth of the screw groove suddenly becomes shallower while the pitch remains unchanged. In fact, in the production and processing of PVC water supply fittings, plasticization is the core technology in any aspect, and the quality of plasticization determines the quality of the product. Therefore, our work should always revolve around plasticization. In general, twin-screw extruders are required for the production of rigid PVC water supply fittings (UPVC). Additionally, the main equipment used in production is injection molding machines, which have unique screw structures. For example, injection molding of polyvinyl chloride requires the use of PVC specific screws, rather than universal screws.

The letter U in PVC-U pipes, which originally means unplasticized, means that no plasticizers have been added. PVC-U is equivalent to UPVC. It is a general term for hard PVC pipes.

PVC-P pipe is the representative symbol of soft PVC.

PVC-M improves toughness through modification and develops various modified polyvinyl chloride pipeline systems with good impact and cracking resistance while maintaining high strength, commonly referred to as PVC-M or PVC-A or PVC-HI.

PVC-O achieves a significant increase in strength and toughness by biaxially stretching the molecules during the processing of pipes. Usually referred to as PVC-O or BO-PVC.

MOPVC is the term for molecularly oriented PVC industrial pipes.

PVC-C is a chlorinated polyvinyl chloride pipe. In addition, in the construction drawing specific - line laying method code, PVC represents the use of flame-retardant plastic pipes for laying.