316 flange bottom valve H42W-16P

1 Purpose bottom valve is a valve of energy conservation, the bottom end is usually installed in the pump underwater straw. Restrictions within the pump liquid return water pipe, into play not only features. Bonnet had a lot of water supplies and strengthening tendons, played a clogging, mainly used in pipeline pumping role of waterways and supported. caliber have ill with double valve, Orange Peel type. There are flanged and threaded connections. bottom valve from the valve estimate, valve, bonnet, bushings, seals and other parts, see the figure sources of water from the bonnet into the body in a fluid under pressure, the valve open water, when the inner tube is shown after stopping outlet pressure valve quickly closed, the liquid will not fall back to the water, that is played a smooth pumping action and saving water loss check valve means to rely on the flow of the medium itself automatically open and close the valve, the valve to prevent the media back, also known as check valve, check valve, reflux valve, and back pressure valve. Check valves are an automatic valve, whose main role is to prevent the media back, to prevent the pump and drive motor reversal, and discharge the container medium. Pressure valve which can also be used to exceed the system pressure may rise auxiliary systems provide supply pipeline. 2 installation methods: 1, first before installing the first wooden spool holder removed, or can not use 2, mounted on the bottom of the pump suction tube should be installed to ensure its vertical position. 3, start: for the first time before the start of the water pipe filled with water immediately after the start, causing the semi-vacuum suction pipe inside the water suction vertical pipe to pump water to complete the process. 4. Maintenance: Generally used without maintenance. When the need for maintenance, simply open the bottom valve opening, replace the valve rubber mats can, based upon the first start after the repair method to start the pump. 5, such as the use of higher concentrations of acid fluid, light your choice of stainless steel water foot valve, and I can plant based on user requirements all plastic water foot valve or 316L (Seoul titanium) Material Water Bottom valve. Troubleshooting: 1, the pump can not water. Check the bottom valve spool holder is removed; remove the valve support 2, check the water pipe connections for air leaks; seal pipe joints 3, before the pump is to water pipes filled with water; the first pump to the pipeline 4 filled with water, check the pump is reversed; correct wiring 5. Check the pump for leaks imagination, or if the pump is damaged, repair or replace the water pump [1] 3 lift performance specifications Nominal pressure: PN0.25MPa nominal diameter: DN15 ~ DN350 Suitable medium: water, oil, and non-corrosive media performance standards: Q / 12 NJ3583-2001 test standards: GB / T13927-1992 Model Nominal Test pressure Operating temperature ℃ Suitable medium Strength (water) MPa seal (water) MPa H42X-2,5 0.25 0.4 0.25 ≤50 water 4 main parts and materials Part Name Material Body, bonnet, valve gray cast iron, 304,316,316L asbestos rubber gasket seals 5 main dimensions Model Nominal diameter DN (mm ) HD D1 D2 Zd Medium Temperature H42X 32 105 120 90 70 4-φ14 water, oil, liquid steel, ≤150 ℃ 40 110 130 100 80 4-φ14 50 125 140 110 90 4-φ14 65 150 160 130 110 4 -φ14 80 175 185 150 128 4-φ18 100 190 205 170 148 4-φ18 125 240 235 200 178 8-φ18 150 280 260 225 202 8-φ18 200 360 315 280 258 8-φ18