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.kingsirvalves.com
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.
Industry Focus: 5 ills in the rapid development of the overall wardrobe industry
At present, there is no industry standard for the production of wardrobes in China. Among our domestic manufacturers, only a few large brands are implementing their own standardized operations. Some small manufacturers and second-rate manufacturers do not have uniform standard industry norms, and bring a series of products to consumers. problem. Industry standards are not uniform: industry standardization has been implemented in the whole wardrobe factory in some developed countries in Europe, which is not only conducive to the regulation and development of the industry, but also convenient for consumers to purchase. At present, there is no industry standard for the production of wardrobes in China. Among our domestic manufacturers, only a few large brands are implementing their own standardized operations. Some small manufacturers and second-rate manufacturers do not have a unified standard industry norm, and bring a series of products to consumers. The problem. It is understood that some consumers will adjust the wardrobe after one year of installation in the wardrobe, such as adding some accessories or increasing storage space. If the original wardrobe does not conform to standardized production, the entire wardrobe needs to be adjusted during the transformation. Such a transformation is time-consuming and laborious, making it difficult for consumers. Environmental protection is not up to standard: In the overall wardrobe area of ​​the home market, most of the environmental testing certificates provided by merchants are “wood inspection report†or “door inspection reportâ€, and the environmental inspection certificate of the whole wardrobe has not yet appeared. According to people familiar with the matter, there are two main types of “fake environmental protection†in the overall wardrobe industry. One situation is to use environmental standards. For example, some of the products that the whole wardrobe manufacturer advertised reached the E0 standard, and in fact, even the E1 standard lower than the E0 standard did not reach. The free formaldehyde content of E1 grade plates has completely met the environmental protection requirements of the overall wardrobe, and the E0 sheet overall wardrobe is rare in China due to its high cost. The overall wardrobe market is chaotic: At present, there are two kinds of quotation methods for the whole wardrobe on the market. One is according to the cabinet, and the other is according to the projected area. According to professionals, the projected area is only a calculation price, not suitable for every household. The price of the wardrobe is different. And the question arises. The change of the wardrobe of one square meter should be a lot. It can include drawers, sliding doors, or cabinets without drawers, or cabinets for installing various hardware accessories, etc., and reported according to the projected area. The price is too general. There are two sources of market chaos, one is that there are many enterprises; the other is that the price is low. These two factors are related to each other and interact with each other, directly lowering the overall profit of the overall wardrobe industry. Due to the sharp decline in profits, many old problems have re-entered our sight. Material adulteration: Furniture is not suitable for use in rooms due to its special environment. The more mature materials in Europe are mainly particleboard, MDF and solid wood, especially the medium-density board accounts for 70%-80% of the market. In addition, because there is no relevant industry standard for wardrobe furniture in the country, it is also very common to use fake and shoddy. For example, E2 grade plates are pretending to be E1 and E0, and the samples are not the same as the delivery. In addition, even the same materials have great differences in quality and environmental protection due to different production processes. The industry is highly fragmented and the market concentration is low: the wardrobe market concentrates on dozens of brands in the building materials market in various regions. The influx of so many brands in two or three years has caused the current market situation of the wardrobe market to be overcrowded and mixed. This will inevitably lead to increased competition from manufacturers and premature reliance on price instruments. In order to survive, most companies have to sacrifice the interests of consumers to find ways to reduce costs in production and sales, resulting in product quality and after-sales service are not guaranteed, the result is increased consumer complaints, the image of the industry is damaged.