Usun Model: at Hose or Pipes or Valve Air Driven Liquid Pressure Testing Pump

Popular  Usun Model :AT  type  hose or pipes  or valve  air driven liquidpressure   testing pump  General Information for Air driven liquid pumps USUN air driven liquid  pumps are ratio devices that utilize low pressure compressed air driving a larger diameter piston (area x pressure) which is linearly connected to a smaller hydraulic piston/plunger. Using this ratio principal, a higher hydraulic pressure can be generated. Usun Pump model numbers reflect the pumps nominal pressure ratio, while the technical data  indicates exact ratios.  The outlet stall pressure is easy to set by adjusting the air drive pressure through a simple air pressure regulator.  By multiplying the pressure ratio by the available shop air pressure, the nominal liquid pressure can be calculated. Exmple ( Pump Model: AT644 liquid pump) Air drive piston area ( 160mm Ø) Hydraulic plunger area ( 20 mm Ø) Actual ratio = 64:1 1.  AIR DRIVE SECTION The air drive section consists of a light weight piston complete with seals running inside an aluminum barrel. The diameter of the air piston is 80mm. When compressed air is supplied to the pump the air pushes the air piston down on a compression stroke ( forces fluid out of the liquid end).  Under the control of pilot pins (poppet valve) triggered at each end of the stroke 2. HYDRAULIC SECTION (Wetted End) The hydraulic section of an air driven liquid pump consists of 4 main pieces, the hydraulic body, the piston/plunger, the check valves and the main high pressure seal. The hydraulic piston/plunger is  directly linked to the air piston and it is housed inside the hydraulic body and its movement up and down creates the liquid flow into and out of the pump through the check valves. The check valves are spring loaded and on the suction stroke the inlet check valve  opens to the maximum allowing fluid into the hydraulic body and on the compression stroke the inlet check valve closes and the discharge check valve opens forcing the pumped fluid into the process. The main high pressure seal is located within the hydraulic body and the piston/plunger seals against this during operation. There are different materials and designs of high pressure sealsTypical applications for  pneumatic driven water testing pump  Key featuresOne model available in 8 ratiosCompatibility with a variety of liquidsSafe pneumatic operationAluminum bodies and wetted materials of carbon steel or stainless steelRugged,compact,reliable and easy maintenance proven designHigh quality seals, long service life availableNo need for air line lubricationWide application with large range of pressure ratioMain technical data Typical technical data for pneumatic driven water pump  AT Serial Air liquid pump Technical data                                             Base on air driven at 7Bar , air consumption is around  0.9M3 per min Base on air driven pressure at 7BarModelPiston/Rod diameter ø(mm)Displacement per stroke (mL)Liquid INLiquid OUTMaximum outlet pressyre Bar@at 8.3BarLiquid Outlet pressure (Bar)     1Bar=0.1Mpa=1.019Kg/cm²0204070100150200300400500600700900120017002350Flow rate   L/min  (L/min)AT1050294.52NPT3/4''NPT3/4"8335.3426.5120.6217.6711.78           AT1640188.5NPT3/4"NPT3/4"132.822.6216.9713.211.317.54           AT2035144.32NPT3/4"NPT3/4"16617.3214.4312.9911.5510.10          AT2830106.03NPT1/2"NPT1/2"232.412.7210.69.548.487.426.360         AT402573.63NPT1/2"NPT1/2"3328.847.366.635.895.154.423.680        AT642047.12NPT3/8"NPT3/8"4985.654.714.243.773.32.832.361.881.41       AT801838.17NPT3/8"NPT3/8"6644.583.823.443.052.672.291.911.531.341.15      AT1001630.16NPT3/8"NPT3/8"8303.623.323.022.872.562.261.811.511.211.060.90    AT1301423.09NPT3/8"NPT3/8"10792.772.662.542.312.081.851.621.391.150.920.810.690.23   AT1701212.44NPT3/8"NPT3/8"14111.491.431.371.311.241.1210.870.750.620.50.440.370.12  AT240108.64NPT3/8"*HF419921.040.990.950.910.860.780.690.60.520.430.350.30.260.220.17 AT30097.32NPT1/4"*HF424900.880.840.840.810.770.730.660.590.510.440.370.330.290.330.18 AT40085.53NPT1/4"*HF433200.660.640.640.610.580.550.50.440.390.330.280.250.220.210.190.14Remark 1) Maxium outlet pressure are at an air driven pressure of 8 bar or 116 PSI ,for long life usingof such pump ,we suggest that air driven pressure should be not more than 8 Bar Typical diagram of such air driven liquid pumps  Product Applications