Q: semi-automatic exhaust valve of the main technical performance requirements depending on a parameter is very a: the main technical parameter a. Nominal pressure for PN10 exhaust valve. c。 Try the intensity of pressure for 1. 5MPa。 f。 Pressure should try qualified GB/T13927 rules. d。 The water of the exhaust valve closed pressure should be 0 or less. 02MPa。 h。 For high flow velocity, start working more water pump, the caliber of DN ≧ 100 operating mode, to reduce water impact, exhaust valve plug valves shall be equipped with ease conflict. d。 The water of the exhaust valve closed pressure should be half more than 0. 02 mpa, under lower water pressure can close the discharge valve, thus preventing an amount of water gushed out. b。 Tightly closed try pressure of 1. 1MPa。 g。 For the exhaust valve DN 100 or more right and the use of fission structure, by the number of exhaust valve and semi-automatic exhaust valve, in order to suit the use of pipeline pressure requirements. And under the pressure of office able to trace the air discharge duct rally. In high pressure conditions, at the same time because of the complex leverage the strength of the utility, the floating ball can be decreased and water mark bit synchronization, open-close part not like traditional valves are high pressure to absorb, so normal exhaust. b。 Exhaust valve in the pipe with negative pressure initiation, the piston should be rapidly-changing open, quickly quantity in outside air, in order to ensure pipeline will not damage initiation by negative pressure. Semi-automatic exhaust Industrial Valves shall be deemed appropriate and use the complex linkage, to significantly enlarge floating Marine valve ball pressure, and closed water standard low, the water impurity is not easy to contact tightly closed surface, vent will not be congestion, the congestion resistance can be greatly increased. e. The air exhaust valve closing pressure should be 0 or higher. 07MPa。 c。 Exhaust valve should be higher air closing pressure, in a split-second, the piston air emissions should have enough experience to the pipe end, the growth rate of water. e. Exhaust valve shall be deemed appropriate and use the stainless steel ball float ( Floating barrels) For opening and closing parts. 。 Ease conflict plug valve should be can avoid fountain number but will not affect the quantity of exhaust, make water rate won't be affected, and help to avoid water hammer. f。 Exhaust should have the impact on the valve body to take care of the cone, in case the quantity of exhaust after high speed water floating ball directly ( Floating barrels) To float ( Floating barrels) The early damage. g。 Petition the flange should be qualified GB/T17241. 6 - The provisions of the 98. A performance requirements. Exhaust valve should be bigger row of mind, when the pipeline atc water filling can be successfully implemented in a very short time experienced rapid exhaust reduction to normal water supply. Notes to the order: The national standard) A, A: B: product name, model, nominal size medium and temperature, pressure range C: whether there is attachment, delivery time, and special requirements so that we can correct selection for you. Second, if the valve has been selected by design unit of our company model, please order according to the valves parameters directly with our sales center. Three, it is very important when you use the occasion or the environment is more complex, would you please provide design drawings and detailed parameters, our engineers experts will concentrate on review and analysis for you. We can provide you with professional solutions, including design, customization, complete, operation and service. We've been working on the valve leader in the field of industry, to provide you with the latest knowledge of the valve, the best service, best technical adviser. Thank you for visiting our website, if you have any questions, you can call us, we will be dedicated to provide you with quality services. The factory provides professional ball valve, butterfly valve, gate valve, globe valve, check valve, relief valve, safety Industrial Valves, Marine valve, oil valve, hydraulic control valve and other kinds of valves.
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