Self-priming sewage pump is a new structure developed on the basis of repeated research on similar technologies at home and abroad. Self-priming sewage pump set of self-priming and non-clogged sewage in one, the use of axial return outside the mix, and through the pump body, impeller runner unique design, as the general self-priming pump does not need to install the end of the valve and irrigation It can be widely used in municipal sewage projects, river breeding, light industry, papermaking, textile, foodstuff, chemical industry, electricity industry, fiber, slurry and hybrid suspension etc. It can also absorb water and contain large particles of solid and long fiber impurity liquid. First, the self-priming sewage pump selection and installation: Self-priming sewage pump should be transported in accordance with the liquid selection, and check the required performance, analysis of suction, discharge conditions, intermittent operation or continuous operation. Self-priming pumps should normally be operated at or near the pressure and flow rates specified by the manufacturer's design. Second, self-priming sewage pump installation should be carried out the following review: 1, according to the characteristics of self-priming pump transmission medium, if necessary, check the main parts, shaft seals and gaskets; 2, the basic size, location, elevation Should meet the design requirements, anchor bolts must be properly and correctly fixed in the concrete foundation, the machine should not be missing, damaged or corroded, etc .; 3, self-priming sewage pump leveling, find work should be consistent with equipment technical documentation Regulations, if there is no provision, should comply with the current national standard "mechanical equipment installation engineering construction and acceptance of the general specification," the provisions of; 4, all connected with the self-priming sewage pump pipe, pipe fittings and oil pipe cleaning requirements should be In line with the relevant national standards.
Ball Valves
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.
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.
Stainless Steel Ball Valves, Brass Ball Valves, Sanitary Ball Valves, Water Ball Valves
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