Commonly used duct materials and their selection: 1. Thin steel plate Thin steel plate is the main material for the production of ventilation pipes and components, and is generally commonly used for ordinary thin steel plates and galvanized steel plates. Specifications are expressed in terms of short side, long side and thickness, and the thickness of…
The ventilation design of the laboratory is different from the ventilation design requirements of the comfort air conditioning system. The main purpose of laboratory ventilation is to provide a safe and comfortable experimental environment and reduce the exposure of the experimental personnel to the harmful air environment. Solve the physical health and labor protection of…
Polypropylene plastic tube construction mainly uses processing equipment Platform type sizing sawing machine; Portable dicing saw; Electrothermal plastic welding torch; Woodworking planer, small hand hammer; pistol drill, angle grinder, impact drill and other tools. Construction Program Before construction, the project manager and professional engineers should arrive at the construction site to determine the construction drawings,…
Plastic ductwork, is a ductwork for air transport and distribution. Such as laboratory ventilation duct system, mall air conditioning duct system, factory exhaust gas discharge duct, industrial ventilation duct, etc. Plastic ductwork is divided into PP ductwork and PVC ductwork. PP ductwork has a wide range of applications, low cost, acid and alkali corrosion resistance,…
PP plastic ductwork is also known as plastic air duct. The main production material is PP polypropylene. There are two kinds of conventional air ducts and flame retardant air ducts. PP plastic ductwork can be divided into round duct, rectangular duct, oblate duct and so on. Because pp material has strong corrosion resistance and toughness,…
Plastic Ducting, the plates, profiles and other main finished materials used in the production and installation of air ducts, should comply with the current national standards for design and related products, and apply the factory inspection certificate. Common Plastic Ducting is PVC material and PP material. Because of its good corrosion resistance, it can be…
The flame retardant grade of plastic decreases from V-0, V-1, V-2 to HB: V-0: The flame was extinguished within 30 seconds after two 10-second burn tests on the sample. No burning objects should fall. V-1: After the sample was subjected to two 10-second burn tests, the flame was extinguished within 60 seconds. No burning objects…
Polypropylene PP air ducts are also not called PP ventilation ducts. They are injection molded from polypropylene or processed through polypropylene sheets. They are generally divided into ordinary models and flame retardant models. Common colors are white, gray, and natural. Polypropylene PP air duct: strong ventilation capacity; stable acid and alkali resistance, corrosion resistance and…
