Test pump manufacturers supply Heipp electric test pump, hydraulic test machine, a professional test pressure devices

 4D-SY type (6.3-80MPa) 4D-SY type (6.3-80MPa electric test pump pressure test series according to special requirements of the design, in the initial stage of the pressure test can be quickly filled and the boost to shorten test time, It has a larger flow, when the pressure exceeds 1.6MPa (This pressure can be lowered), the order for the pressure test procedure can be carried out relatively steady and slow, the flow is automatically reduced, so this pump has two high, low pressure traffic and can automatically transform, where the rated discharge pressure, the pressure can be any pressure test. 4D-SY type (6.3-80MPa) electric hydraulic test pump is mainly applicable to all types of pressure vessels, oxygen bottles, pipes, valves , steam boilers, etc. for hydrostatic testing, to stress the processing of new technology and laboratory equipment to obtain high-pressure fluid source. is the latest series of products Ministry of Machinery Industry General Machinery Research Institute joint design team test pump design, it has a legacy high "three" level products, long life, stable performance, mobile and flexible, light weight and other characteristics, and on this basis, an increase of gearing and cross conversion, making the series a comprehensive technical indicators have reached the standard requirements, a variety of performance more stable and reliable, the use of more safe and convenient, while achieving the energy saving effect in the product structure of a closed water tank, reducing the whole height, shape of the product is more compact appearance by 5 °.. - water, emulsion and viscosity 60 ℃ not more than 45mm2 / s of oil as the working medium and the specially designed pressure test at the initial stage quickly filled and the boost to shorten test time, with great flow, When the pressure exceeds 1.6Mpa (This pressure can be lowered), the order to make the process smoother pressure test carried out, the flow is automatically reduced, so that the product is high, with two low pressure flow, and can automatically change. Where rated discharge pressure or less, can be any number of pressure testing, the product work environment temperature: 5 ° -60 ℃ Third, the technical parameters of the series test pump a total of seven models, the basic parameters such as table:? Model Rated discharge pressure MPa Flow L / h diameter of the plunger reciprocating frequency Motor Power Dimensions L * W * H (mm) weight kg when High Low High Low 4D-SY160 / 6.3 6.3 160 530 32 45 51 1.1 815 * 480 * 1055 215 4D -SY100 / 10 10 100 450 25 4D-SY63 / 16 16 63 400 20 4D-SY40 / 25 25 40 380 16 4D-SY30 / 40 40 30 360 14 1.5 840 * 480 * 1055 4D-SY22 / 63 63 22 340 12 4D-SY16 / 80 80 16 340 10 low-pressure cylinder piston diameter:? 45mm low-pressure cylinder working pressure: ≤1.6MPa cylinders: 4 reciprocating piston stroke 40mm per minute: 51 when the selection test pump, should be based on the required Test pressure to select the rated pump discharge pressure. It should also take into account traffic demands. First, the product structure and schematic ??? The product is symmetrically arranged horizontal 4-cylinder reciprocating pump. By the electric motor, gear box, gear box, high and low pressure tank, sump, hydraulic control valves, safety valves and tanks and other major components. The working principle and structure shown in Figure 1. The entire pump mounted on the tank, there are four wheel under the tank, the pump can be mobile and flexible. Motor and gearbox coupling the two coupling halves. Department of worm gear box, worm gear, ratio of 2:55. Worm shaft eccentric shaft at both ends into each other by 180 °, by a sliding mechanism on both sides of the transmission box, rotary motion into reciprocating motion of the slide, crosshead. Crosshead loaded plunger reciprocates within the tank, the pump's suction and discharge processes alternate. In the reciprocating action of the plunger, the working volume of the four tanks in the formation cycle. When the suction stroke of the plunger, the valve is closed, with the working volume of the tank increases, the cylinder creates a vacuum inside the tank working medium under the effect of atmospheric pressure, through the filter, suction pipe, entered the top of the valve into the cylinder. When the plunger to discharge stroke, the intake valve is closed, the valve forced open, the plunger will work through the valve input media catchment, transported to the subjects vessel until it reaches a predetermined test pressure to achieve test purpose pressure. Catchment: sump pump control is the hub, from control, measurement and protection. Sump check valve, globe valve, safety valve, drain valve and connect the output to take over the work of the joint, which is equipped with a pressure gauge. Check: check valve is high, the on-off valve between the low-pressure cylinder, to avoid the low-pressure tank under high pressure. Valve: the pump with the shut-off valve control valve test vessel, when it reaches the test pressure indication, which should close the valve and stop, be packing inspection and testing. After the pressure test is complete, open the drain valve shut-off valve and pressure relief, the working medium back into the tank. Safety valve: valve is overload protection device of the pump fluid end. When the pump discharge pressure actual ≤25MPa, take off the pressure of the exhaust valve is 1.1-1.15 times the rated pressure; when the actual pump discharge pressure ≥25MPa, when 1.15-1.25 times the rated pressure, which should release the working medium, so that the pump is not overloaded, play a protective role. The pilot valve: both ends of the two low-pressure cylinder is connected to the pilot valve, liquid sump Control Manager and high pressure cavity. When the pilot valve is closed, four high and low pressure cylinders simultaneously, and when the discharge pressure> 1.6MPa, discharged liquid media by the Control Manager so that the valve is open, the two low-pressure cylinder connected to each other, check them with the high pressure chamber cut off, then the left and right output medium is no longer the low-pressure cylinder, working only from the high-pressure cylinder, automatic switching for traffic descending, so that both the pump's flow rate automatically transform, while two low-pressure cylinder exchange, nor then energy consumption, but also to avoid overload and damage the pump parts. ? Note: the pilot valve operating pressure can not be higher than 1.6Mpa. The factory has been debugged, the user need not adjust. Pressure gauge: pressure gauge mounted on the manifold, when subjects vessel to test pressure, immediately stop and close the valve, then the pressure gauge still indicates the test pressure. Pressure gauge should be equivalent to the value range of 1.2-1.5 times the rated pressure of the pump. ? Fifth, use 1, install out of the box (1) Install the wheel. The four suits in the wheel axle (washer 20 at the wheel on both sides), put the cotter pin. (2) Install a safety valve. Twist to the sump plug package will install five, use 1, install out of the box (1) Install the wheel. The four suits in the wheel axle (washer 20 at the wheel on both sides), put the cotter pin. (2) Install a safety valve. Twist to the sump plug packaging, the safety valve in the sump of the safety valve connectors M14 × 1.5-5H hole (note plus copper washer 12) (3) Install pressure gauge. Pressure gauge pressure gauge screwed into the next nut connector, easy to observe the surface toward the direction. 2. Use (1) Preparation before use: ① reduction box to add a little oil, so the oil reaches the upper or lower limit of the oil standard position. Black gear lubricant oil (SYB1103-62S). ② signs on both sides of the transmission case by injecting the 30th refueling machine oil (GB443-89), the oil should be slightly higher than the lower part of the crosshead guide surface, long-term continuous use should pay attention to add. ③ Check the fastening bolts loose phenomenon. ④ inside the tank to fill clean working medium, and should pay attention to the filter may not be out of the water. ⑤ subjects vessel should be pre-filled with the working medium. ⑥ container line will be tested and work catchment good header. (2) should be precautions: ① the highest gear box oil temperature should not exceed 80 ℃. ② work, such as a pump or other parts found significant leakage, should be immediately removed. ③ valve when the pilot valve can not be used. ④ when the low-pressure vessel (Pa≤ 1.6MPa) pressure test, the operating pressure may be appropriate to reduce the pilot valve, loosen the hydraulic control valve that is at the lock nut, then loosen the appropriate regulator plug, When adjusting the hydraulic control valve, should remove the high pressure cylinder into the water, blocking the pump outlet or connected to the container, open the drain valve repeatedly, it can accurately adjusted to the required pressure, determined to nuts. When ⑤ pump, hydraulic control valve in the return pipe when pressure increases backwater with 1.6Mpa the following increases over 1.6MPa water back to decrease. If the pressure rises after back water continues to increase, should be shut down to adjust the pilot valve overhaul to make it work properly. (May also be caused by a valve and check valve leakage) ⑥ subjects such as the volume of the container is small, too fast boost, a plurality of sample containers linked together by pressure test, or slightly open valve, reducing the rise press speed, or the operation of the pilot valve pressure lowered by only two high-pressure cylinder work. ⑦ boost process, if the pressure gauge needle swing too, indicating that the user is test container volume is too small, then the best in the system connected to a pressure vessel of sufficient capacity (should comply with the relevant national standards) or other appropriate energy storage devices. Then jog boost when container volume ⑧ test if they are larger, continuous operation can be boosted, to be close to the test pressure. During operation the system pressure should pay close attention to avoid accidental overpressure. ⑨ If accidentally unexpected overpressure, can play an open valve, after removing some of the pressure to re-boost. (3) Procedure ① Open the drain valve. ② start the motor, operating at atmospheric pressure for 5 minutes, check the pump operation is normal. If there is no abnormal noise and blocking phenomenon, suction, exhaust normal and no significant fluctuations in the pump delivery of the working medium to close the drain valve, turn on the pump pressure test. When ③ When the pump discharge pressure at or near the required pressure value, that should be shut down after closing the shutoff valve, the valve open play, the pump being tested off the container, the container being tested in packing state. As the subjects container without packing, downtime, without close the valve. ④ after pressure test is complete, open shut-off valve and drain valve relief, the working medium back into the tank. ?? Six, general failure and troubleshooting pressure test found fault should be excluded from the first pump (subjects vessel, piping systems leak) fault, then check the pump failure and exclusion. ? 4D-SY electric test pump high-pressure Easy maintenance means no water? Symptom Cause Remedy pump pressure rises too slowly or does not rise 1, the release valve is not tightly closed. 2, the filter is clogged or leaking joints. 3, the plunger seal loose or damaged. 4, into and out of the valve put to death. 5, into and out of the valve is not sealed. 6, the suction pipe leak. 1, tightly closed or re-equipped research. 2, clean or remove dirt tighten the fittings. 3, adjust or replace the seals pressed against the collar. 4. Remove the inspection, cleaning or re-grinding. 5, reground or replaced. 6. Tighten suction tube. The rise in non-uniform pressure pump 1, there is a tank inlet and outlet valve put to death. 2, there is a tank inlet and outlet valve seal bad. 3, there is a cylinder seal loose or damaged. 1, according to the direction of movement of the plunger, hands swinging conditions and sound judgment fault cylinder, remove and clean or with research. 2, supra law determine the fault cylinder. Remove the valve reground or replaced. 3, supra law and observe the cylinder seat scuppers determine fault cylinder leaks, adjust or replace the seals pressed against the collar. Short dwell time of the pump discharge pressure or less than the rated one, the shut-off valve leakage sump. 2, the sump drain valve leakage. 3, valve leakage. 4, the check valve in the manifold or valve leakage out of each tank. 5, leaking joints. 1. Close the shut-off valve or reconfigure research. 2. Close the drain valve or reconfigure research. 3, adjust the spring tension or cleaning the sealing surface or reground valve line. 4, reground or replace the valve and seat. 5. Tighten fittings or replace gaskets. 1 gearbox temperature is too high, low oil viscosity or dirty. 2, the bearing assembly too tight. 3, worm gear meshing gap is too small. 4, the safety valve is not working or the pump load is too heavy. 5, the motor concentricity bad. 1. Adjust the number of oil or oil change. 2, adjust the axial clearance. 3. Check the contact surface mark, re-assembly and adjustment of the worm wheel position. 4, prohibiting overload operation or maintenance of safety valve. 5, reassemble, adjust the position of the motor axis. Motor overloading 1, pump overload. 2, around poor lubrication. 3, the power supply voltage is too low 4, plunger seal tightly. 1, to avoid overload. 2, supplement or replace the oil. 3, to improve the power supply voltage. 4, appropriate to relax the compression nut. ? Seven, maintenance and repair 1, the pump looks, gear box and transmission lubricants and water tank inside the testing medium must protect clean, it does not allow dirt and other debris. 2, lubricating oil work the first time, shall be replaced after 56 hours. After every 500 hours to replace. 3, long-term disabled pump, its internal anti-rust treatment should be carried out. First testing medium drained, and later with clean diesel oil storage. Exposed parts should be coated with anti-rust oil appearance. 4, always check the pump axial clearance worm: The worm is 0.04-0.07mm, the worm is 0.05-0.10mm. If you do not comply with this value to be adjusted through cover, cover paper pad or stuffy side cover pad of paper. 5, in the following temperature range 0 ℃ to use, the working medium is water when adding antifreeze. It recommended denatured alcohol as antifreeze. The ratio in the table below. ? Ambient temperature ℃ 90 ° denatured alcohol% water% 0--103367 -10--20 4555-20--3054 46-30--407030