There are five general body styles of ball Valves: single body, three-piece body, split body, top entry, and welded. The difference is based on how the pieces of the valve-especially the casing that contains the ball itself-are manufactured and assembled. The valve operation is the same in each case. Stainless Steel Ball Valves, Brass Ball Valves, Sanitary Ball Valves, Water Ball Valves ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.kingsir-valve.com
1. It is still the key to increase the wear resistance and formaldehyde emission of wooden floor
The laminate flooring has undergone pressure treatment to overcome the weaknesses of the solid wood flooring. The pattern is rich in color and easy to maintain. Its surface finish and high wear resistance are the most prominent features. However, some laminate floors have not reached the most basic national standards. According to the national quality standards, formaldehyde emission from qualified wooden floors must not exceed 1.5 mg/L, and the number of wearable surfaces on the surface should not exceed 6,000 rpm. However, at present, the release of formaldehyde from some laminate wood floors exceeds the standard requirements. Some wear rotations only have more than 100 revolutions, which not only seriously affects the service life of the floor, but also easily becomes the source of pollution in the home.
2. Paint's harmful substance content and hiding power can not be ignored
Whether it is latex paint or wood paint, the safety performance that is the content of toxic and hazardous substances is the most need to pay attention, VOC, benzene, toluene, xylene, heavy metal content and other harmful substances in the paint will cause harm to the human body.
When choosing a latex paint, in addition to asking for the environmental protection material test report from the manufacturer, it is also necessary to select paints with strong adhesion, strong hiding power, delicate texture, resistance to chalking, waterproofing, mildew resistance, and easy brushing according to different needs. In order to reduce the occurrence of fine cracks in the wall, paint film peeling, mold and other phenomena.
3. Tiles have no radiation intrusion, and the wear resistance and warpage degree are emphasized
The problem of ceramic tile radiation once became the most worrying issue for consumers. Good tile glazed surfaces should be smooth, delicate, shiny and shiny, and scratching tiles with sharp objects will not leave scratches; percussion tiles, the more brittle the sound, the higher the degree of porcelainity and density, the better the hardness; observe the side of the tiles Whether it is straight or not, warping will affect the firmness of the tiles.
In addition, there are different styles related to the bore of the ball mechanism itself.
Ball valves in sizes up to 2 inch generally come in single piece, two or three piece designs. One piece ball valves are almost always reduced bore, are relatively inexpensive and generally are throw-away. Two piece ball valves are generally slightly reduced (or standard) bore, they can be either throw-away or repairable. The 3 piece design allows for the center part of the valve containing the ball, stem & seats to be easily removed from the pipeline. This facilitates efficient cleaning of deposited sediments, replacement of seats and gland packings, polishing out of small scratches on the ball, all this without removing the pipes from the valve body. The design concept of a three piece valve is for it to be repairable.
How to buy flooring before renovation
Many home-improvement consumers reflect that nowadays a big change in the size of the building materials city, a variety of building materials often make people have no choice. First, the new term is confusing, and it is difficult to figure out the actual quality. Second, the homogeneity between different brands is serious. The characteristics of each are not obvious, and it is not clear who is better.