1. Pressure reducing and stabilizing valve
Main features: 1. Piston type with DN65 caliber or above. The life of the diaphragm is increased by more than 3 times; 2. Below DN50 caliber, the original diaphragm is replaced by a flat diaphragm of nylon reinforced rubber, which also improves the service life by more than 3 times. Applicable medium: water, air. Medium temperature: 0-90°C.
2. Bellows pressure reducing valve
This valve is used for steam, air and other non-corrosive gas pipelines with a temperature below 180C, which is adjusted to reduce the pressure of the medium through the valve to a required outlet pressure, and keep the outlet pressure of the medium relatively stable, but the difference between the inlet pressure and the outlet pressure must be greater than or equal to 0.5bar.
3. Branch pressure reducing valve
1. UsesThe water pressure reducing valve produced by our factory is mainly used for various building water supply systems, fire protection systems, central air-conditioning systems, heating systems, etc. It is used for branch pipe pressure reduction, which can make the water supply pressure distribution more balanced, avoid partial water supply overpressure, and optimize the water supply zoning of high-rise buildings. It can replace the zonal frequency modulation variable speed water pump, and can replace the zonal water pump in the fire water supply system, and is used in the household water supply system, which can protect all faucets and other water appliances.
2. Features: Adopt direct-acting diaphragm structure, the internal structure is very simple, no jamming, reliable performance and durable. Resistant to dirt and water, no filter, no bypass pipe, extremely simple piping, can save a lot of space and piping costs. The outlet pressure is precisely adjustable, and in general, it can be considered that the outlet pressure is not affected by the inlet pressure (the change in outlet pressure is 8% of △P1). Hydraulic characteristics, low pressure loss, decompression ratio can reach more than 10:1. It can meet a variety of pressure reduction requirements, especially suitable for branch pressure reduction systems.
3. The working principle of Rexroth pressure reducing valve is that the outlet pressure acts on the bottom surface of the diaphragm and the bottom surface of the valve disc, and when it exceeds the spring set value, compress the spring to close the valve disc. As long as there is no water flow downstream, the outlet pressure will remain at the set value (the change is only 8% of the inlet pressure change); When water is used downstream, the outlet pressure drops, and the spring pushes open the diaphragm, opening the pressure reducing valve. After the water flow continues for a while, the opening of the pressure reducing valve produces a self-damping effect, so that the opening and closing action tends to be stable. Fourth, the possible cause of failure 1. frost damage, in the cold area should pay attention to heat preservation. 2. The direction of the water flow is wrong, the pressure reducing valve becomes a check valve, and the outlet pressure is 0. 3. The spring is tightened too tightly to close, and the pressure reducing valve will go straight through P2=P1. 4. The bypass pipe leaks, so that the P2 deviates from the set value, in view of the superior reliability and durability of this pressure reducing valve, it is recommended not to install the brightness through pipe.
4. Steam pressure reducing valve
Steam pressure reducing valves are suitable for use on steam pipelines. Through the adjustment of the pressure reducing valve, the inlet pressure can be reduced to a certain required outlet pressure, when the inlet pressure or flow rate changes, the pressure reducing valve can automatically keep the outlet pressure fluctuating in a small range by relying on the energy of the medium itself.
5. Proportional pressure reducing valve
Proportional pressure reducing valve, beautiful appearance, reliable quality, accurate proportion, stable work, both dynamic pressure and static pressure reduction. The valve uses the pressure difference generated by the different load areas of the piston at both ends of the valve body to change the pressure behind the valve to achieve the purpose of pressure reduction.
6. Yk43X/F/Y pilot piston gas pressure reducing valve
This series of Rexroth REXROTH pressure reducing valves is a pilot operated piston pressure reducing valve. It is composed of two parts: the main valve and the pilot valve. The main valve is mainly composed of valve seat, main valve disc, piston, spring and other parts. The pilot valve is mainly composed of valve seat, valve disc, diaphragm, spring, adjusting spring and other parts. The outlet pressure is set by adjusting the spring pressure, the outlet pressure change is sensed by the diaphragm, and the piston is driven by the pilot valve opening and closing to adjust the size of the overflow area of the throttle part of the main valve, so as to realize the function of pressure reduction and stabilization. This product is mainly used in gas pipelines, such as air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas and other gases.
7. Pressure reducing and stabilizing valve
YB410, YB416 and YB425 pressure reducing and stabilizing valves are a kind of piston type pressure regulating valves. Diaphragm type pressure reducing valves with diameters smaller than DN50 are recommended to be Y110 and Y116 (threaded connection); Piston type pressure reducing valves with diameters greater than or equal to DN50 are recommended to use Y410 and Y416 (flange connection). This kind of valve belongs to the adjustable pressure reducing valve, the pressure of the valve port can be adjusted according to the need before being put into use, and the pressure after the valve is always reduced to and stabilized at the setting plant after being put into use, and will not change due to the fluctuation of pressure and flow in front of the valve. The valve is made of high-quality materials (the diaphragm is a nylon reinforced rubber diaphragm), which has reliable performance and long service life.
8. Piston adjustable pressure reducing stabilizer valve
The piston adjustable pressure reducing regulator valve is installed on the pipeline of the water supply and drainage system of high-rise buildings, and uses the characteristics of the utilizer to make the suspended particles with large specific gravity and large diameter not enter the control system, so as to ensure that the system circulation is unimpeded, so that the valve can operate safely and reliably. The system has stable operation, high strength and long service life. The piston type is used for valves larger than 450 caliber.
9. Diaphragm adjustable pressure reducing stabilizer valve
The diaphragm adjustable pressure reducing regulator valve is installed on the pipeline of the water supply and drainage system of high-rise buildings, and uses the fluid characteristics to make the suspended particles with large specific gravity and large diameter not enter the control system, so as to ensure that the system circulation is unimpeded and the valve can operate safely and reliably. The system is agile and has a long service life.
10. 200X pressure reducing valve
Rexroth REXROTH pressure reducing valve is an intelligent valve that uses the energy of the medium itself to regulate and control the pressure in the pipeline. The 200X pressure reducing valve is used in domestic water supply, fire water supply and other industrial water supply systems, and the outlet pressure of the main valve can be adjusted through the pressure reduction pilot valve of the regulating valve. The outlet pressure does not change due to the change of inlet pressure and inlet flow, and the outlet pressure is safely and reliably maintained at the setting, and the set value can be adjusted as needed to achieve the purpose of decompression. The valve has accurate pressure reduction, stable performance, safe and reliable, easy installation and adjustment, and long service life.
11. 200P type pressure reducing valve
The 200P pressure reducing valve is a direct-acting adjustable pressure reducing valve, which adopts diaphragm type hydraulic operation mode, and can be installed horizontally or vertically in water supply, fire protection system or other clean water system. Within a certain flow range, the outlet pressure of the valve can be controlled to a relatively fixed value. The 200P type is a pressure reducing valve with internal thread connection, which has the characteristics of small size, easy installation, etc., and has a built-in filter screen, which can facilitate the overall installation operation, avoid debris blockage, and make it more safe and reliable.
12. Lever pressure reducing valve
The valve is mainly used in the desuperheating device to regulate the pressure. The pressure reduction ratio is generally 0.6, DKJ-310 electric actuator is selected, and DKJ-510 electric actuator is more suitable for DN500 valve.
|
More on that
|
Bosch Rexroth: Smart handling for the factory of the future
It's hard to imagine a factory automation system without linear robots. The application of linear robots involves handling incoming materials during product production, assembly or packaging, whether integrated into a single machine as a pick-and-place unit or integrated into a semi-automatic or fully automated production line. However...
|
|
Rexroth solenoid valves are common faults
Rexroth solenoid valves are composed of solenoid coils and magnetic cores, and are valve bodies containing one or several holes. When the coil is energized or de-energized, the operation of the core will cause the fluid to pass through the valve body or be cut off to change the direction of the fluid. The solenoid parts of the solenoid valve are composed of a fixed core, a moving core...
|
|
How to use Rexroth balance valves
1. The flow direction of the medium should be consistent with the direction of the arrow of the valve body;
2. The differential pressure balance valve should be installed on the return pipe, the valve is connected to the guide pipe, and the other end of the pressure guide pipe is connected with the water supply pipe, and it is recommended to install a 1/2" ball valve at the water supply end of the pressure guide pipe in order to start the function of eliminating blockage;
3、 ...
|
|
How to adjust Rexroth A11V hydraulic pump?
In general, there are two ways to adjust it
1. Add a speed regulating valve at the outlet of the pump to adjust the output speed of the oil volume, so as to achieve the amount of oil used
2. Add a variable pump with oil volume, adjust the angle of the oil pan to achieve the input quantity of changing the oil volume. This method compares ...
|
|
Rexroth balance valve balancing principle and its function description
The balancing principle of the balancing valve and its function are explained
The principle of balance
The TA balancing concept is the concept of total equilibrium, which believes that only after the resistance of the system is adjusted and balanced, can each equipment obtain the design flow under the design operating conditions.
Fluid network system for the HVAC industry
...
|
|
Bosch Rexroth appeared at the 2020 Industry Fair
From September 15th to 19th, the 22nd China International Industry Fair was held as scheduled at the National Convention and Exhibition Center. Bosch Rexroth, a leading practitioner and supplier of Industry 4.0, presents 6.1 with the classical value stream of the factory of the future and the innovative automation platform ctrlXAUTOMATION with the theme of the future, using the present.
|
|
Rexroth hydraulic pumps – the scope of application of hydraulic pumps
1. In the mining and metallurgical industry, the pump is also the most used equipment. Mines need to be drained by pumps, and in the process of beneficiation, smelting and rolling, pumps are needed to supply water first.
2. In the power sector, nuclear power plants need nuclear main pumps, secondary pumps, tertiary pumps, thermal power plants need a large number of boilers ...
|
|
Rexroth solenoid valve can not open the reason analysis and solutions
1) Coil problem
Use a voltmeter to measure the voltage across the coil. This should help you determine if the coil is working properly. You can also gently pull the coil to feel if there is a magnetic force acting on it. If it proves difficult to pull, the coil generates a magnetic field, which creates an excitation.
|
|
What are the functions of Rexroth relief valves?
1. It plays the role of pressure stabilization and overflow (the valve port is normally open)
In the fixed pump oil inlet or return oil throttling speed control system
2. Safety protection function (valve port normally closed)
Variable pump hydraulic system, fixed pump bypass throttling speed regulation system and non-throttling speed regulation system.
3. The effect of anti-load
4、 ...
|
|
Rexroth hydraulic pump - common faults and solutions of hydraulic pumps
1. The hydraulic oil pump cannot absorb oil or have no pressure.
Causes
1. The rotation direction of the prime mover and the oil pump is inconsistent.
Cleaning method: correct the rotation direction of the prime mover.
2. The oil pump transmission key falls off.
Elimination: De novo transmission key.
...
|
|
4 ways to predict maintenance failures in advance of Rexroth piston pumps
1. Conduct regular testing and diagnosis of Rexroth piston pumps
According to the listening and collecting signals, the western line diagram of the online working performance of the Tule Pillar Jiquan was made, and the evaluation report was made. Based on the results of home monitoring, it is decided whether to repair the Rexroth plunger atmosphere. In this way, the optimal dimension of the Piston Pump ...
|
|
Classification and function of Rexroth pressure control valves
1. Rexroth relief valve
Overflow, pressure stabilizer, which is used to regulate and maintain the oil supply pressure of the pump while overflowing the excess oil in the system. When the regulated pressure is reached, the hydraulic system is controlled to keep it in a constant state. Relief valves for overload protection are called safety valves. ...
|
|
Classification of Rexroth solenoid valves and their introduction
1. Direct-acting solenoid valve
Principle: When the normally closed type is energized, the electromagnetic coil generates electromagnetic force to lift the open part from the valve seat and open the valve; When the power is off, the electromagnetic force disappears, the spring presses the opening on the valve seat, and the valve is open.
Features: In vacuum, negative pressure, zero pressure ...
|
|
Rexroth variable piston pump displacement control mode
1. Guiding ideology:
1. The pressure depends on the load oil pump, and the output pressure is inversely proportional to the flow rate. In the state of electronic control, when the external load increases, the system pressure increases, when the system pressure increases, the pressure of the front pump oil flow and the rear pump oil flow into the rear pump increases, and the computer detects the ...
|
|
Analysis of the fault phenomenon and causes of Rexroth hydraulic oil pump
1. Check the internal leakage of the boom cylinder. The easiest way to do this is to raise the boom and see if it has a noticeable free descent. If the drop is obvious, disassemble the cylinder for inspection, and replace the sealing ring if it is worn;
2. Check the control valve. First of all, clean the safety valve and check whether the valve core is grinding.
|
|
Introduction to the classification of Rexroth relief valves
(1) Rexroth DBD direct acting relief valve: DBD valve is a direct-acting relief valve, which is used to limit the system pressure, with a total of 7 pressure levels: 2.5, 5, 10, 20, 31.5, 5, 40 and 63Mpa. The types of pressure adjustment are: adjustment handle, adjustment handle with lock, and adjustment screw with protective cover.
|
|
What should be paid attention to in the maintenance of Rexroth oil pump?
1. Water will corrode the oil pump, so it is forbidden to use the oil pump to vacuum the substance containing water.
2. For substances containing a large amount of solvent, remove most of the solvent in the oven first, and then use an oil pump to vacuum.
3. Use the vacuum pump in the correct order to prevent suck-back. ...
|
|
How Rexroth hydraulic pumps are adjusted
1) Swash plate axial piston variable pump, used for open hydraulic rotation back
2) Mainly used in the field of mobile machinery
3) The pump works under the condition of self-priming, mailbox pressurization or with built-in suction pump, (centrifugal pump).
4) The output flow rate is proportional to the driving speed, and ...
|
|
Bosch Rexroth | No need for a control cabinet, a new solution for intralogistics
Less is more: Lean manufacturing is an important competitive factor for manufacturing companies. It's a question of how processes can be optimised so that they can act faster and more flexibly to increase economic efficiency, and the same applies to intralogistics. If the logistics are not properly organized, regardless of the production ...
|
|
Bosch Rexroth presents the new Heglon drive, which has been specially developed for rubber machinery
At the International Rubber Congress 2022 in Nuremberg, Bosch Rexroth presents a new Heglon drive specially developed for rubber machinery. It is designed to significantly reduce energy consumption and thus CO2 emissions in daily operations. Similar to traditional electromechanical drives, the pre-assembled ...
|
|
Contact
working hours
