( Note: the average consume loss elimination in the valve products for diaphragm and ring, other inner parts damaged little) The main valve before and after the first side gate valve closed. When entering the diaphragm ( The piston) Stem above the indoor pressure downstream of the water is discharged into atmosphere, or low pressure area, utility in the bottom of the valve plate above and below the diaphragm of the pressure value is greater than the pressure value, so the main valve disc to rev. The location of the full paper; When entering the diaphragm ( The piston) Upper stem indoor pressure downstream of the water can not be discharged into atmosphere, or low pressure zone, utility in the diaphragm ( The piston) At the top of the pressure value is greater than at the bottom of the pressure value, so will reduce the pressure of the main valve disc to the absolute closed position; When the diaphragm ( The piston) Upper stem indoor pressure value in the inlet pressure and outlet pressure halfway, the main valve disc is in adjustment, adjust the position is determined by its type needle valve in the duct system and adjustable pilot valve to the conjugate. On the basis of using the target, function and place different can morph into remote sensing floating ball valve, reduce the pressure valve, slow close check valve, flow stem Industrial Valves, relief valve, water power electric stem valves, etc. The piping on the main valve cover joint screw loosening, pressure release valve, will take off, all the screw cover stem line indispensable in the brass nut. Adjustable valve can through the downstream outlet pressure and along with the change of it up or down its own small valve port, thus changes the diaphragm ( The piston) Stem chamber pressure value, above the stem of the valve disc to adjust position of hydrodynamic stem valve repair and protection of hydrodynamic stem valve is a kind of water is used since embellish body, no other oil lubricating oil, in case of the main valve in the zero device damage, please click the following list ordering disassembly. Hydrodynamic stem valve installation protect a: q: hydrodynamic stem valve's own pressure in the pipeline, was mainly used on Marine valve through the pressure difference between the inferior vena stem chamber to restrict the movement of the main valve, through the by-pass pipe and all kinds of different construction of the pilot valve on different function of initiation various series valve, thus achieve the goal of all kinds of requirements. Hydrodynamic stem into valve for silencing/hammer/slow elimination/slow close check valve, water mark a stem valve, reduce the pressure valve, safety/relief valves, electric valves used in a variety of different occasions, such as remote sensing semi-automatic security network safe operation, widely used in construction, fire, water, hvac, iron and steel, electric, fuel, chemicals such as a network management system has delayed opening function, can solve the traditional people shut valve open pump have slowly-closing function, can be artificially adjust the closing time, semi-automatic hydraulic slowly-closing successful implementation, eliminate water hammer have satisfactory sealing performance closely, can achieve perfect action acuity after closing, safe and reliable, no artificial operation will not emerge out of control phenomenon, in the whole process of pipeline running for semi-automatic office all inside and easy corrosion parts all right and gas natural resin epoxy powder coating can remove the seat structure dexterous, convenient maintenance and transform ( No the whole valve down) In the pipe can be arbitrary vertical or horizontal installation, its good hydrodynamic stem valves not like other valves also has a lot of demand us to consciousness, to research and development of function, such as the flow of small diameter stem valves research and development, with the various demands of the hydrodynamic stem valve with a rubber, spring the survival of the fixed number of year, and so on, in order to better applied to engineering. Water power stem valve should be no danger. Water no danger, the cover should be better. After the fire to reduce the pressure valve of the water system should have drainage facilities. Semi-automatic fountain put fire extinguishing system to reduce pressure, reduce the pressure valve should be set up before the alarm valve ( Along the flow direction) , with a single alarm valve of a set of reduced pressure valve, not facilities with lower pressure valve; With multiple alarm valve of a set of reduced pressure valve, facilities with lower pressure valve. Used for hot water supply project of reducing pressure valve, use hot water operated reducing pressure valve shall deem appropriate. Hydrodynamic stem valve is a hydraulic valve stem, it consists of a main valve and set the catheter, pilot valve, needle Industrial Valves, ball valve and pressure gauge, etc. Take cover and spring, and to get off axis core, diaphragm, piston, do not damage the diaphragm. Intermediate partition membrane type and hydrodynamic stem valve piston type two kinds, office principle is the same, is more than the downstream pressure difference delta P, by the pilot valve stem, make diaphragm ( The piston) Hydrodynamic semi-automatic hydraulic differential operation, the absolute by adjustment, and therefore make full of the main valve disc paper or absolute closed or in the condition adjustment. After the above items to extract, seizing type, diaphragm and a. circle is destroyed; Such as shape bad don't dispute this again points its inner parts such as diaphragm or ring has destroyed, please loose the nut on the axis core, get to decompose the diaphragm or circle, after extracting the new change into a new type of diaphragm or bound ring carefully examines the main valve seat, shaft core inner whether have damage, if there are other debris inside the main valve to sort out completely, it is in accordance with the reverse down the order will change after the zero combination device installed the main valve, valve which permits jam phenomenon.
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