Product Introduction:

The GBW concentrated sulfuric acid pump produced by Shanghai Guanfeng Pump Manufacturing Co., Ltd. is optimized and designed based on the performance parameters of the IS centrifugal pump, using two materials: concentrated sulfuric acid special cast iron and carbon steel, and an excellent hydraulic model. It is an ideal new generation chemical pump.

Product features:

· Easy to maintain: replace seals and bearings, simple and convenient.

· More land saving: The exit can be arranged in three directions: left, right, and up, which facilitates pipeline layout and installation, saving space.

· Smooth operation: The absolute concentricity of the pump shaft and excellent dynamic and static balance of the impeller ensure smooth operation and reduce vibration.

· Low noise: The water pump supported by two low-noise bearings runs smoothly, with almost no noise except for weak motor noise.

· Low failure rate: The structure is simple and reasonable, and high-quality matching is used for key parts, greatly improving the fault free working time of the whole machine.

· Drip proof: The pump shaft seal adopts an external high-quality mechanical seal, and the dynamic and static rings are made of silicon carbide, which is corrosion-resistant, wear-resistant, leak free, and has a long service life.

Selection criteria:

Special steel is widely used in 80-100% sulfuric acid, with temperatures reaching 60-80 ℃. Steel in this concentration and temperature range of sulfuric acid can produce a protective iron sulfate film layer on its surface. Cast iron is not suitable for more than 100% fuming sulfuric acid, possibly due to the reaction between sulfur trioxide and the silicon contained in iron, which makes the cast iron brittle. Carbon steel is not suitable for 100-102% fuming sulfuric acid, and is suitable for acids exceeding 102%. The temperature limit is about 60 ℃. The corrosion of steel by dilute sulfuric acid is significant, and the corrosion rate reaches its highest value when the acid concentration is around 47%. When the acid concentration exceeds 65%, the corrosion rate of steel significantly decreases. However, in the concentration range of 65-80%, it is recommended not to use steel. It is safer to use lead or other acid resistant materials.

Sulfuric acid concentration: 80% to 98%. Special cast iron usage temperature: 25 ℃ to 50 ℃

matters needing attention:

· Mechanical seals are strictly prohibited from working under dry grinding conditions.

· Open the inlet valve to fill the entire pump chamber with liquid.

· Check if the temperature rise at the motor and bearing is ≤ 70 ℃, and if any abnormalities are found, take appropriate measures.

· Regulating valves should be installed on the inlet and outlet pipelines of the pump to control its operation within the rated operating conditions.

· Before installation, carefully check whether there are any hard objects in the flow channel of the pump body to avoid damaging the impeller and pump body during operation.

· Connect the power supply, gradually open the valve on the discharge pipeline when the pump reaches normal speed, and adjust it to the desired working condition.