First, the overall stiffness of the door and window frame (a) Phenomenon Sliding or opening doors or windows or encountering windy weather, the door and window frames are shaking. (b) Reasons 1. Improper selection of profiles, small sections, and insufficient strength. The prevention of aluminum alloy door and window materials does not meet the requirements. Plastic steel door and window material quality failed. 2. The lining steel configuration of the steel doors and windows does not conform to the standard, and the steel walls are thin and of poor strength; the lining steel is inserted in sections, which does not form an integral reinforcing effect; the lining steel and plastic profiles are not firmly connected. 3. The installation node is not in accordance with the specification. 4. There are no different fixing methods depending on the wall. (III) Measures 1. The specifications and quantity of door and window frame profiles conform to national standards. The thickness of the outer frame of the aluminum alloy profile shall not be less than 2.4 mm. Plastic window material thickness should not be less than 2.5 mm. 2. Check the appearance of plastic profiles. Qualified profiles should be white or ivory white, clean and smooth. Better quality protective film. 3. According to the size of doors and windows and installation height, profile section should be selected. Casement window is not less than 55 series, and sliding window is not less than 75 series. 4. In strict accordance with the provisions of the provisions of the installation, to ensure solid and stable. Second, door and window leakage (a) Phenomenon 1. Leakage between the door frame and the surrounding wall. 2. Sliding window sinks into the tank and seeps into the window. (b) Reasons 1. Door and window frames and walls are cemented with cement mortar. 2. The gap between the window frame and the wall is not strict and there is a gap. 3. The door and window process failed, and the window frame and the window sash did not combine. 4. The sash seals were not installed and water penetrated through the sash glass gap. 5. The window frame has no drainage holes. (III) Measures 1. Door and window frames and walls shall not be caulked with cement mortar. Should be flexible connection, sealed with sealant, no gaps. 2. Before the installation, check whether the doors and windows are qualified, whether the combination between the window frame and the sash is strict, and whether the sash sealing strip is installed is qualified. 3. There is more than 50 mm gap between the window frame and the hole to make the window sill able to make the water flow slope. 4. The bottom frame of the frame and the orbital root should be drilled. Third, the color difference between doors and windows (a) Phenomenon The color of the adjacent doors, windows or window frames does not match the color of the fan. (b) Reasons Material is not the same factory product, or the same batch of products, or different grades of products. (III) Measures 1. You should use the same manufacturer's products for the selected profiles, and prepare them once at a time. 2. Pay attention to the color of the ingredients before cutting, and avoid using materials with large color difference in the same door and window. Knowledge of Building Materials Doors, Doors and Windows, Cement, Aluminum Alloy, Glass, Glass, Glass Door Safety Valve Foot Valve Globe Valve and Other Valves
Globe Valve is one of the most widely used valves, it is durable, easy to fabricate and maintance. Ningbo RMI Plastic Co.,Ltd offer PVC globe valve, CPVC globe valve, PVDF globe valve, PP globe valve, PPH globe valve, PTFE lined globe valve, with flange end and screw connection, design and fabricate as per standard DIN, ANS, JIS. Plastic globe valve is suitable for corrossive medium application, widely used in Chemical factory.
Foot Valve also named bottom valve, the function of the valve is to prevent medium backflow, mainly used to protect pumps and other equipments. RMI PLAST offer different models of plastic foot valve with materials of PVC, CPVC, PVDF, PP, PPH, PTFE lined, with flange end and socket connection as per ANSI, JIS, DIN standards.
Sampling Valve is used to obtain medium sample from pipeline or equipment, RMI PLAST brand PVC sampling valve is special designed with small size, light weight, easy handle. 1/4" size male thread end and 1/2" size coupling end is easy to install and replace.
Globe Valve,Foot Valve,Sampling Valve,PVC Globe Valve Ningbo RMI Plastic Co.,Ltd , https://www.rmiplast.com
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