Prevention of communication equipment is a prerequisite for maintaining the proper performance and durability of such systems. This is especially true for pipelines, since the formation of problem areas on its surface can lead to sad consequences. One of the primary preventive operations in this case is a leak test. There are different approaches to this task, but most of them involve the use of special devices and assemblies.
The simplest equipment in this group is a manual pressure pump, the use of which is available to both the specialist and the home foreman. Such tools are used for auditing water supply and heating systems as part of scheduled inspections, after repair work and before putting the facility into operation.
Device and features
The design is based on a pump fixed to a reservoir with a working fluid. One side of the pump interacts with the pressure sleeve, and the other integrates into the hydraulic compartment. The complex is also complemented by a distribution block, discharge and suction valves, two valves and a handle.
Most of these elements are designed to provide control of the working fluid, in particular to control its flow. Despite the simple design, the crimping pump can be used as a universal device. In addition to working with pipelines, it is also used in the maintenance of refrigeration units, gas cylinders and other equipment.
Almost all modern models have a high-strength case made of metal alloys. Also, the tank, regardless of volume, has special protection against corrosion. Manufacturers also take into account user requests in terms of ergonomics. This characteristic largely depends on the handle, which performs the role of a device for carrying the unit and the direct function of controlling the hydraulics. The pressure test pump is also equipped with a pressure gauge. So far, this device is supplied as an optional addition, but its usefulness during the operation of the tool can hardly be overestimated.
What are the differences from electric models?
There are two types of crimping machines. The first option is represented by manual models, and the second by electric ones. In both cases, developers use the principle of hydraulics. That is, the function of the instruments is performed by handling the water content. After pressurization, the device will allow you to perform the necessary measurements and, possibly, identify deviations from the norm. Now it’s worth considering in more detail how the electric pressure pump differs from the manual one. The first variety is more ergonomic, accurate and easy to use models. Manual units require the operator to participate in the process of operations, so their accuracy is less high.
Despite the advantages of electrical appliances, their scope is significantly limited compared to the second variety. Lack of electricity does not allow the use of such devices. For this reason, a manual crimping pump is often used at temporary construction sites where there is no access to electricity.
Key Specifications
A variety of models causes an equally wide range of values according to technical characteristics. Nevertheless, it is possible to consider the middle category of such devices as a baseline for optimal data. So, first of all, it is important to consider the maximum pressure of the device, which is usually 60-70 bar. The design parameters possessed by the pressure pump have an effect on the applicability in certain operating conditions . The gauge, for example, can be 3-4 cm, the volume of the built-in capacity usually reaches 12 liters, and the weight of the instrument on average varies from 3 to 7 kg. The characteristics of the pressure gauge are also important, again the average values of its scale usually do not exceed 60 bar. As for the size of the crimp, they are small. A standard case can have the following dimensions - 32 cm in length, 26 in width, and 20 in height.
Rothenberger Model Reviews
Most experts primarily consider options for imported models. Judging by the practice of use, one of the most reliable and accurate devices in this segment is the Rothenberger crimping pump, designed for operation with small diameters in water and gas supply systems. Users note the ease of handling of such devices. By the way, in the initial line you can find versions weighing 5 kg, which at the same time do not cause difficulties in moving thanks to the ergonomic handle.
Reviews about the models "Instan"
There are also attractive versions of Russian production, among which are Instan products. Such models are presented in different versions with a working pressure range of 30-90 bar. Plumbers indicate that the devices of this company are versatile. In addition to the possibility of operation in conditions without power sources, such models allow serving a wide range of plumbing systems. At the same time, users mention the accuracy of the pressure gauge, which is equipped with a manual pressure pump. The price of the "Instan" model is quite affordable - the initial level is represented by equipment from 4 to 8 thousand rubles. In this range, you can find crimpers with a high-quality metal case, compact size and good functionality.
Reviews about Saturn models
Noteworthy is another domestic manufacturer - the company "Saturn". There are not many options in the manufacturer’s assortment, but the Nir-60 modification received a large number of flattering reviews. This model is appreciated, first of all, for the ability to work in a variety of environments, including oil, water and antifreeze systems. The advantages of plumbing include a system of poppet brass valves, which is supplied with a pressure pump from the company "Saturn". Thanks to these devices, the device is able to provide constant pressure over time. This device is also praised for its wide configuration, which includes a functional pressure gauge and a high-strength reinforced hose.
Prices
In the budget segment of simple devices with minimal specifications and modest functionality, you can find options for 3 thousand rubles. Of course, such equipment is not suitable for work in critical areas, but for single use in the inspection of ordinary pipes of small diameter it is quite suitable. The middle category is represented by models with a pressure of 60 bar and a capacity for liquid of 12 liters. This is a standard crimping pump, the price of which varies from 7 to 15 thousand rubles. The class of expensive models for 20-30 thousand rubles is not so popular, but if we are talking about working at large facilities with large diameter pipes, then this equipment is also indispensable. As a rule, these are devices from foreign manufacturers, since domestic devices for the most part are designed to work with small pipes.
Conclusion
With this device you can perform an extensive range of preventive operations. The main purpose for which a manual pressure pump is purchased is to check for leaks in pipelines in areas that do not have access to either mains power supplies or water supply. Accordingly, in comparison with electric models, such a device has a high autonomy, due to which it is widely used. However, manufacturers continue to improve the device in different directions.
Thus, the functionality of the pumps is expanded thanks to modern measuring instruments, and reliability and durability are achieved by using high-strength steel in the structure.