Stainless steel screw back-pressure valve RXBF safety pressure valve manufacturer

First, an overview of the counterbalance valve when threaded stainless steel metering pumps and other positive displacement pump systems operate at low pressure, there will be an excess of delivery. To prevent similar problems, the import and export must be at least 0.7Bar metering pump backpressure. By installing a back pressure valve in the metering pump outlet pipe can achieve their goals. Thread the counterbalance valve 304 Second, stainless steel screw back pressure valve main function provides back-pressure valve pressure difference at both ends of the line is not very demanding of system can be used as safety valve. And pulsation dampers used in conjunction with the system to reduce water hammer hazards, reduce the flow rate fluctuation of the peak, protection pipes, elbows, joints from impact pressure fluctuations. Create a good working environment for metering pumps and improved pump performance. Third, the threaded steel back pressure valve works back pressure valve by spring force to work. When the system pressure than the set pressure hour, the diaphragm spring force action at clog the pipeline; when the system pressure is large than the set pressure, the diaphragm compression springs, pipes turned on, the liquid through a back pressure valve. Fourth, the use of stainless steel screw back pressure valve in the outlet line pipe, the back pressure valve and a pulsation damper should be used simultaneously to absorb traffic spikes between the pump and the back pressure valve with a pulsation damper. When no pulsation damper, back pressure valve with each pump stroke progresses quickly open and close. When pulsation damper, back-pressure valve in half-open and half-closed position of oscillation, thus reducing pulsation damper can wear rate of back pressure valve. For large flow pump, and the outlet pipe long, thin, back-pressure valve installation location should be close to filling point to reduce the siphon trend. When liquids containing suspended solid medium, back pressure valve should be installed with the inlet end of the three-way pipe plug (or four), so in the case of the pipeline can be cleaned without disassembly. Back pressure valve just a pipe element, only with other pipeline components (such as pulsation damper, safety valve, check valve, globe valve) used in conjunction to achieve maximum effectiveness. Diameter pipe have DN6,8,10,15,20,25,32,40,50,65,80,100, twelve models. The inlet end of the pressure there is 0.3MPa-1.0MPa two series, import and export side pressure differential can be adjusted by adjusting the length of the spring. Importers and provide internally threaded coupling, flange, hose connectors three ways for selection. Based on the company's previous experience, process information available information and professional users, the company will provide users recommend material contact parts material; determined by user selection of materials, Shanghai high-Valve Co., Ltd. does not assume bolt due to wear or corrosion caused by The loss and damage warranty parts or products. Fifth, use the back-pressure valve Note 1, to avoid system resonance. 2, simultaneously with the pulsation damper, the pulsation damper to be safe back-pressure valve between the pump and to absorb traffic spikes between the pump and the back pressure valve. Slow the wear rate of back pressure valve. 3, outdoor use should be added protective shed or protective cover. On the back-pressure valve prior to any maintenance, you should stop functioning equipment, the release of pressure, close the back pressure valve valve associated with the system, while recognizing that there is no pressure pulsation damper. Pay attention to prevent harm to human transmission fluid maintenance. 4, if the back-pressure valve import and export access, back pressure will grow exponentially, bringing harm to the system and may be dangerous. 5, running back-pressure valve malfunction was found should be promptly cut off the power. 6. If in doubt, please contact me. Note: The back-pressure valve prior to any maintenance, you should stop functioning equipment, the release of pressure, close the back pressure valve valve associated with the system, while recognizing the pulsation damper six, back-pressure valve on the pipeline industry how to choose? Back pressure valves are generally two purposes: 1: back-pressure valve to prevent liquid gravity (or siphon) under gravity, which is generally used when the pressure can be greater than the liquid itself, such as to prevent the level of two meters in the medicine chest liquid gravity, the choice of pressure is greater than 0.02MPa of back pressure valve, generally used to 0.1MPa. 2: back-pressure valve for stabilizing the pump flow, such as certain flow pump with pressure changes in the larger, set back pressure valve at the outlet of the pump, the pump output flow stability, then generally choose backpressure valve pressure pump pressure or slightly less than the actual use of the pump pressure. Check valve on the outlet pipe to prevent liquid reflux, a back pressure valve for maintaining a constant pressure pump outlet. The purchase of back-pressure valve, please provide the following information: 1, 2 caliber back-pressure valve, the pressure to be set 3, what material need the conventional material (produced by our company are: PVC, 304 stainless steel, 316 stainless steel, if necessary Please special instructions other materials) preferably at the same time inform the media, temperature and flow transport. Technical Parameters backpressure valve pressure valve shape and installation dimensions model (PVC material) Model (stainless steel) diameter (DN) Set pressure (MPa) connection mode (threaded or flanged) SGBF-P6 / 0.3 SGBF -S6 / 0.3 6 0.1-0.3 or 0.1-0.6 maximum 1.2MPa DN6 SGBF-P8 / 0.3 SGBF-S8 / 0.3 8 DN8 SGBF-P10 / 0.3 SGBF-S10 / 0.3 10 DN10 SGBF-P15 / 0.3 SGBF-S15 / 0.3 15 DN15 SGBF-P20 / 0.3 SGBF-S20 / 0.3 20 DN20 GSBF-P25 / 0.3 SGBF-S25 / 0.3 25 DN25 SGBF-P32 / 0.3 SGBF-S32 / 0.3 32 DN32 SGBF-P40 / 0.3 SGBF-S40 / 0.3 40 DN40 SGBF-P50 / 0.3 SGBF-S50 / 0.3 50 DN50 SGBF-P65 / 0.3 SGBF-S65 / 0.3 65 DN65 SGBF-P80 / 0.3 SGBF-S80 / 0.3 80 DN80 SGBF-P100 / 0.3 SGBF-S100 / 0.3 100 DN100 Note : You can set the scene back pressure (0 to 100%) by adjusting the bolts. Set pressure, flow material, connection mode can be designed and manufactured according to user requirements. I plant the back-pressure valve, pressure range has 0-10 kg, mainly materials are PVC and stainless steel, carbon steel, small size with large spot (304 stainless steel and PVC materials), welcomed the new and old customers to inquire. Tel: 021-66358043 61175649 http://www.shuangaovalve.com