Hydraulic Pump Manual: Schematic and Device

The hydraulic pump (manual) in the industrial sphere is quite in demand. Its main task can be called the transfer of fuels and lubricants. In this case, the models have their own permissible viscosity norm. In addition, the devices differ in their design. The main element of the hand pump can be called the dispensing nozzle. In some cases telescopic fences are used instead.

How is it arranged?

The standard manual (hydraulic) pump is simple. In the lower part of the body there is a test hose. It is fixed to the mechanism through a special hole using clamps. Above in the hand pump there is a valve that controls the pressure. Turning it clockwise, you can adjust the force of pumping.

To fill the tank there is a cork. Under it is a small port, which is designed to connect to a common system. Also in the mechanism there is a separate tank with a branch pipe for liquid. The hydraulic cylinder with a manual pump is threaded. To adjust the intensity of the valve manufacturers install special regulators. With their help, you can easily change the pressure. At the same time, the pump handle is mounted separately, which is fixed with a plug.

The scheme of the manual pump for pumping oil

In order to pump out oil in large quantities, a strong hydraulic cylinder is required (the scheme of the hand hydraulic pump is shown below). As a rule, it is strengthened with a small support. As a result, it is possible to fix it more tightly. In addition, bolts are used for this.

Among other things, a hydraulic pump is provided in the hand pump. Its main task is to apply pressure to the cylinder. For this purpose, a tee is installed in the device. It is mounted on a special cushion, which is fixed on the washer. It is also fixed with nuts. For the holder in the hand pump, use a rubber band. At the same time, the nipple is located in the lowest part.

Repair of pumps

In order to repair a hydraulic hand pump, you need to learn as much as possible about the breakdown. First of all, you should look at the indicators of the manometer. If the pressure deviates from the norm, this is due to a central reservoir, the integrity of which may be impaired. To replace it, you will need a standard set of tools. First of all, unscrew the upper bushing and disconnect the handle of the hydraulic pump. Next, you need to carefully remove the protective washer.

After this, it is possible to detach the plug. Directly below it is a reservoir. If the external inspection has not shown an obvious deformation, it is necessary to twist off the shut-off valve from it. After that, experts advise to check the efficiency of the valve. If it is rather tight, you need to lubricate it. After this, the mechanism should be folded and checked for operability.

The second common problem with pumps is considered to be the erasure of a rubber cap. In this case, you can simply replace it. It is necessary to know its exact diameter and thickness. After the completion of the repair work, the entire mechanism also needs lubrication.

How do they create homemade models?

To date, homemade devices of this type are rare. However, you can make a hydraulic pump (manual) with your own hands. First of all, use a steel tank as a body. To control the pressure in it, a valve is necessary. It is fixed in the upper part with the help of a washer. To adjust the shut-off valve, use the lever. In this case, you can use a cast-iron pipe. To monitor the pressure, a pressure gauge should be installed.

It will take a bushing with a pipe that will not allow the valve to curl. As a result, you can fold the device, which can withstand a pressure of not more than 4 atm. A distinctive feature of self-made hand pumps are large dimensions. And to bring the lever into the work, you should make great efforts. Considering all of the above, such devices are considered inefficient, and are rarely used in the industry.

Hydraulic pumps NRG

HP pumps are reliable sources of pressure. In this case, they can be connected to various hydraulic systems. The manual hydraulic pump NRG-7007 has a nominal tank capacity of 0.7 liters. At the same time, its useful volume is 0.6 liters, and the pressure of this modification is able to withstand 1.3 MPa. In general, its performance is pretty good. If we consider high-pressure pumps, then attention should be paid to the device NRG-7110.

The nominal volume of the tank is 1 liter. At the same time, the maximum pressure is maintained at 2.7 MPa, and the force applied to the handle should be applied at 50 kgf. Dimensions this modification has the following: width - 310 mm, height - 320 mm, and length - 750 mm. Pump hydraulic (manual) NGR-7016 nominal capacity of the tank is 16 liters. At the same time, its useful volume is 14 liters. The pressure in the first stage is maintained at 2.7 MPa, and the system capacity is 113 cubic meters. See for one move. Weigh this pump hydraulic (manual) as much as 29 kg.

Pumps NRG with valves

Hand pumps of the NRG series are produced in some cases with distributors. These models in the title have the letter "P", so any person can identify them. A distinctive feature of these devices is considered to be a high limit pressure. In this case, they have installed a wide variety of diameters. If we consider the modification of NRG-7020P, then the useful volume of the chamber is exactly 2 liters, and the pressure is maintained at the level of 3 MPa.

The performance of the device on the second degree is 113 cu. See the move. In this case, the force on the handle should be applied in 55 kgf. Weigh this pump hydraulic (manual) 22 kg. If we consider the model NRG-67016P, then the nominal volume of the tank is 14 liters, the maximum pressure is maintained at 4 MPa. The capacity of the mechanism in the second stage is 115 cubic meters. Cm per turn. Weigh the device assembled exactly 30 kg.

Single-acting system

In order to connect a hydraulic pump with a manual drive to a one-way system, a special adapter is required. He is admitted, as a rule, with a manometer. The most common modification of the adapter is the "MA100" model. In addition, a hose length of at least three meters is required. Its end must be connected to the coupling half. Also, an executive mechanism must be provided in the system.

Hand pumps with safety valve

A distinctive feature of these devices is a powerful valve that is capable of withstanding heavy loads. It connects to the system, usually via a normal adapter. In addition, the coupling half of the BRS class is used. Another work requires an adapter, which will be attached to the crane. Through the adapter, the pump can be connected to the actuator.

Double acting hydraulic system

A two-way hydraulic system requires a standard adapter and a pump. In this case, the coupling half is used in the series BRR. Also note the possibility of connecting the rod to the system, and this is done to return the stroke. By default, there is a single hydraulic pipe, but you can connect several pieces. In order to interface the pump with the actuator, a special hydraulic lock is used. It is installed immediately on two connectors. Thus pressure can jump up to 3 MPa.

In this case, you should constantly monitor the indicators of the manometer. After installing the hydraulic lock, you must tighten all the bolts and check the rod for serviceability. In addition, it should be noted that protective sleeves in this system can only be used by the UGZ class. This is due to the fact that it is necessary to connect to the actuator on exactly two connectors.

How do hand pumps work from a station?

The hand pump can be connected to the station only with the help of an adapter of the SH series. In this case, the standard connection scheme provides for a drain pipe. It is produced with the "T" marking. Additionally, a valve is required that will adjust the head. Directly the coupling half of the device is attached to the second hose. In this case, the central rod is not used. This is due to the lack of hydraulic lock.

Ultimately, the system must lock on the actuator. In order to check the operation of the pump, it is necessary to fully turn the valve all the way to the stop. Then the actuator is turned on. At this time, the pressure gauge should not show pressure. If any malfunctions occur, the circuit must be fully tested for integrity.

Device of pumps with coupling

The peculiarity of pumps with a coupling is usually considered to be volume cylinders. At the same time they are attached to the camera with the help of special clamps, which are fixed on the bolts. In addition, there is a protective washer, which stops the central rod. Directly below it is a small tee, which connects to the bushing of the hand pump.

For its stability, as a rule, use a small pillow. It is fixed to the body on two bolts with washers. Just behind her is the first air tube. In this case, the pressure regulator is farther away. The second tube in many modifications is connected to a tee. The washer is mounted on it spring-loaded. In this case, it allows her to change the position when the handle is pressed. The coupling half is screwed directly to the hand pump union.

The scheme of the device from the electric-petrol drive

In this case, a jack or a puller can act as an actuator. In this case, the station is attached directly to the pump directly. Only rubber clamps are used for this, which provide a high grip. The pressure gauge is installed as standard near the actuator.

It should be mentioned about the crane. For normal operation of the hand pump, it must be two-way. In this case, the tank with air will withstand any loads. The safety valve in this system is mounted immediately above the high-pressure hose.

High pressure pump

A distinctive feature of high-pressure pumps is a durable sleeve. In this case, the valve is installed plunger type. It is fixed to the body with two bolts. So, the connection is pretty tough. There is a large lever for adjusting the operation of the device. The back cover of the hand pump is fixed using a clamping rod. It, in turn, is connected to the air reservoir.

The manual hydraulic high-pressure pump "Hansa-014T" is capable of withstanding a maximum load of up to 700 bar. It is designed exclusively for mineral oil. Distilled water is also allowed . Adjustment of this modification is quite simple. For this purpose, the sample is equipped with a rotary valve. In addition, it should be noted a strong hose length of 1 meter.

In turn, the manual hydraulic pump of high pressure "Hansa-015T" is a more powerful prototype. Maximum it is able to withstand the load at 800 bar.

An additional nut is provided to protect the system. The tank of this model is made of aluminum. The central rod is made of copper. It should also be noted that the entire body is made of stainless steel. In this case, the handle is rubberized and very comfortable, and weighs this unit in assembled form about 25 kg.