Electric pressure test pump selling points:

1. This series of pumps adopts a closed water tank with compact structure, stable operation, beautiful appearance and convenient movement.

2. This series of pumps is a four-piston reciprocating pump. The plunger, water inlet and outlet valves, safety valve core and hydraulic control valve core are all made of stainless steel, and the safety valve body and hydraulic control valve body are made of copper.

3. Equipped with a hydraulic control valve, which can automatically adjust the high and low pressure flow. When the pressure is below 1.6 MPa, the flow is large and can be quickly filled with water and pressure. When the pressure is above 1.6 MPA, the flow is automatically reduced by the hydraulic control, which can be stable Increase the pressure to reduce the impact on the container under test and protect the low pressure cylinder.

4. Equipped with a transmission box, which can store lubricating oil and save lubricating oil.

use

  This pump is used in all kinds of pressure vessels, boilers, pipe fittings and other places where pressure test and strength test are required. The pressure value can be pressure tested according to the needs, and the pressure can be automatically maintained. Equipped with cleaning accessories, the machine can also be used as a cleaning machine. The delivery medium of the pump is generally clean water at room temperature. Emulsion, anti-rust water and neutral oil with a viscosity similar to that of water can also be used.

  The pressure test pump system is a non-standard equipment. The industry needs of each customer are very different. The pressure test pump control system that is made is naturally different. It basically has the following functions (1) It has the function of manual pressure or automatic pressure. . (2) Sectional test procedures can be set within the pressure test range, and the system will automatically boost, shut down, and maintain pressure when pressurizing. (3) The system has automatic unloading function, container automatic unloading, emergency stop and overpressure automatic unloading function. (4) The pressure holding time preset during the pressure test can be set freely. (5) With real-time pressure display, curve display, time display, working status display, etc. (6) The system has the functions of pressure setting, calibration and software zero correction. (7) It has the functions of system overpressure and fault status feedback. (8) It has the function of automatically distinguishing the pressure-holding state of the container under test in the pressure-holding stage.

  Main structure and working principle: The product is a horizontal 2-cylinder reciprocating pump. It is composed of main components such as motor, reduction box, transmission box, water tank, water collector, safety valve and water tank.

The pump is installed on the cover of the water tank, and there are four rollers under the water tank, so that the pump can move flexibly. The motor and the gearbox are connected by two half couplings. The speed ratio of the worm gear shaft and the worm gear in the reduction box is 2:55. The two ends of the worm gear shaft are provided with eccentric shafts forming 180° each other, and the rotary motion is converted into the reciprocating motion of the slider and the cross head through the sliding mechanism in the transmission box on both sides. The plunger installed on the crosshead reciprocates in the water tank to realize the alternate suction and discharge process of the pump.

Under the reciprocating action of the plunger, the working volume in the two water tanks changes periodically. When the plunger is in the suction stroke, the water outlet valve is closed. As the working volume of the water cylinder increases, a vacuum is formed in the cylinder. Under the action of atmospheric pressure, the working medium in the water tank passes through the filter screen, the water inlet pipe, and the water inlet valve. Into the cylinder. When the plunger is in the discharge stroke, the water inlet valve is closed and the water outlet valve is forced to open. The plunger feeds the working medium into the water collector through the water outlet valve and transports it to the container under test to realize the pressure test.

The water collector is the control hub of the pump, which plays the role of control, measurement and protection. The water collector is provided with a safety valve, a drain valve, a working joint and a pressure gauge joint for connecting the output pipe.

The safety valve is an overload protection device for the hydraulic end of the pump, which has been adjusted at the factory.

  Usage and precautions

1. How to use

a. Add enough lubricating oil in the reduction box to make the oil level reach the height of the engraved line on the oil mark. The lubricating oil is N68 mechanical oil (equivalent to the old brand 50 mechanical oil). Add N46 mechanical oil (equivalent to the old No.