Rexroth proportional relief valve for ships

Rexroth proportional relief valve for ships

NingboBingshengOperating brands: HYDAC, EMG, PARKER, HAWE, MOOG, BUCHER, REXROTH, EATON, ATOS, etc. Provide customers with solid reliability and intelligent innovation. The core of our service is to significantly improve the production efficiency of all products. The series of products, individual equipment, and comprehensive system solutions under the group are mainly applied in the continuous production and processing of industries such as metallurgy, papermaking, plastics, tin foil, and tires. The solution is globally stable and provides driving force for innovation. Based on a profound understanding of market demand, we will work with our clients to pave the way for the application of new technologies and future business segmentation. In this direction, we actively shape the market with our high-quality services and innovative thinking

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Rexroth proportional relief valve for ships

Rexroth（Rexroth）There are many models of proportional relief valves, and the following are the model descriptions of several main series:

RexrothREXROTHProportional overflow valveLong term stock model:0811402079 DBEBE6X-1X/180G24K31F1M

‌1DBEP/DBET/DBETEseries‌

‌characteristic‌Direct acting proportional relief valve has the advantages of large pressure regulation range, small pressure regulation deviation, and sensitive action.

‌mounting surface‌: PressDIN 24340 AType andISO 4401Standard.

‌operation method‌Proportional electromagnet operation, base plate installation.

‌special model‌：DBETEType equipped with integrated electronic controller(OBE)，DBETType belt position feedback.

‌IIKBPSseries‌

‌characteristic‌High performance direct acting proportional relief valve, suitable for situations that require precise pressure control.

‌specification‌: Specifications8Combination of pilot valve and direct acting valve.

‌operation method‌Proportional electromagnet operation with central thread and detachable coil.

‌feature‌: Command values can be externally controlled on the electronic controller/The pressure characteristic curve is balanced, and the minimum or maximum pressure can be obtained when the power is cut off.

0811402022 DBETFX-1X/180G24-27NZ4M

0811402021 DBETFX-1X/250G24-27NZ4M

0811402020 DBETFX-1X/315G24-27NZ4M

0811402036 DBETX-1X/50G24-8NZ4M

0811408016 DBETX-1X/315G24-8NZ4M

0811402017 DBETX-1X/180G24-8NZ4M

0811402018 DBETX-1X/80G24-8NZ4M

0811402019 DBETX-1X/250G24-8NZ4M

0811402030 DBETX-1X/80G24-25NZ4M

0811402031 DBETX-1X/180G24-25NZ4M

0811402032 DBETX-1X/315G24-25NZ4M

0811402034 DBETX-1X/50G24-25NZ4M

0811402035 DBETX-1X/250G24-25NZ4M

0811402034 DBETX-1X/50G24-25NZ4M

0811402030 DBETX-1X/80G24-25NZ4M

0811402031 DBETX-1X/180G24-25NZ4M

0811402035 DBETX-1X/250G24-25NZ4M

0811402036 DBETX-1X/50G24-8NZ4M

0811402037 DBETX-1X/350G24-25NZ4M

0811402038 DBETX-1X/25G24-25NZ4M-36

‌

Rexroth proportional relief valve for ships

REXROTHCommon faults and troubleshooting of Rexroth proportional relief valve

The common faults of Rexroth overflow valve in use include noise, vibration, radial clamping of valve core, and pressure regulation failure.

(1) noise and vibration

The components that are prone to noise in hydraulic devices are generally considered to be pumps and valves, with relief valves and electromagnetic directional valves being the main ones in valves. There are many factors that can generate noise. The noise of the overflow valve can be divided into two types: flow velocity sound and mechanical sound. The flow velocity noise is mainly caused by oil vibration, cavitation, and hydraulic impact. Mechanical noise is mainly caused by the impact and friction of valve components.

（1） Noise caused by uneven pressure

　　REXROTHThe pilot valve part of the pilot relief valve is a vibration prone area as shown in the figure3As shown. When overflow occurs under high pressure, the axial opening of the pilot valve is very small, only0.003～0.006Centimeters. The flow area is very small, the flow velocity is high, and it can reach200rice/Seconds can easily cause uneven pressure distribution, resulting in unbalanced radial force of the cone valve and vibration. In addition, the ellipticity generated during the processing of cone valves and cone valve seats, dirt sticking to the pilot valve port, and deformation of the pressure regulating spring can also cause vibration of the cone valve. So it is generally believed that the pilot valve is the source of noise.

Due to the presence of elastic elements (springs) and moving mass (cone valves), a condition for oscillation is formed, and the front chamber of the pilot valve acts as a resonant chamber. Therefore, when the cone valve vibrates, it is easy to cause resonance of the entire valve and produce noise, which is usually accompanied by severe pressure fluctuations.

（2）Rexroth overflow valve Noise generated by voids

When air is sucked into the oil due to various reasons, or when the oil pressure is lower than atmospheric pressure, some of the air dissolved in the oil will precipitate and form bubbles. These bubbles have a larger volume in the low-pressure area, and when they flow with the oil to the high-pressure area, they are compressed and their volume suddenly decreases or the bubbles disappear; On the contrary, if the volume is originally small in the high-pressure zone, but suddenly increases when flowing to the low-pressure zone, the phenomenon of rapid changes in the volume of bubbles in the oil. The sudden change in bubble volume will generate noise, and since this process occurs instantaneously, it will cause local hydraulic shock and vibration. The pilot valve port and main valve port of the Rexroth pilot relief valve have significant changes in oil flow rate and pressure, which can easily lead to cavitation, resulting in noise and vibration.

（3） Noise generated by hydraulic impact

RexrothREXROTHThe pilot operated relief valve will produce pressure shock noise during unloading due to a sudden drop in pressure in the hydraulic circuit. The higher the working conditions of high pressure and large capacity, the greater the impact noise. This is due to the hydraulic impact generated by the short unloading time of the relief valve. During unloading, the rapid change in oil flow rate causes a sudden change in pressure, resulting in the impact of pressure waves. Pressure wave is a small shock wave that produces very little noise, but when transmitted to the system with oil, if it resonates with any mechanical component, it may increase vibration and enhance noise. So when hydraulic shock noise occurs, it is usually accompanied by system vibration.

0811402039 DBETX-1X/180G24-25NZ4M-36

0811402003 DBETBX-1X/180G24-37Z4M

0811402004 DBETBX-1X/315G24-37Z4M

0811402013 DBETBX-1X/28G24-37Z4M

0811402072 DBETBEX-1X/80G24K31A1M

0811402140 DBETBEX-1X/80G24K31F1M

0811402071 DBETBEX-1X/180G24K31A1M

0811402075 DBETBEX-1X/180G24K31F1M

0811402073 DBETBEX-1X/250G24K31A1M

R901223184 DBETBEX-1X/250G24K31F1M

0811402070 DBETBEX-1X/315G24K31A1M

0811402141 DBETBEX-1X/315G24K31F1M

0811402075 DBETBEX-1X/180G24K31F1M

0811402074 DBETBEX-1X/315G24K0B5M

0811402073 DBETBEX-1X/250G24K31A1M

0811402072 DBETBEX-1X/80G24K31A1M

0811402071 DBETBEX-1X/180G24K31A1M

0811402070 DBETBEX-1X/315G24K31A1M

0811402085 DREBE6X-1X/310MG24K31F1M

0811402083 DREBE6X-1X/175MG24K31F1M

0811402082 DREBE6X-1X/75MG24K31A1M

0811402081 DREBE6X-1X/310MG24K31A1M

0811402080 DREBE6X-1X/175MG24K31A1M

0811402079 DBEBE6X-1X/180G24K31F1M

0811402078 DBEBE6X-1X/80G24K31A1M

0811402077 DBEBE6X-1X/180G24K31A1M

0811402076 DBEBE6X-1X/315G24K31A1M

0811402045 DBE6X-1X/80G24-8NZ4M

0811402040 DBE6X-1X/80G24-25NZ4M

0811402044 DBE6X-1X/180G24-8NZ4M

0811402041 DBE6X-1X/180G24-25NZ4M

0811402043 DBE6X-1X/315G24-8NZ4M

0811402042 DBE6X-1X/315G24-25NZ4M

0811402023 DBETFX-1X/80G24-27NZ4M

0811402022 DBETFX-1X/180G24-27NZ4M

0811402021 DBETFX-1X/250G24-27NZ4M

0811402020 DBETFX-1X/315G24-27NZ4M

0811402078 DBEBE6X-1X/80G24K31A1M

0811402084 DBEBE6X-1X/80G24K31F1M

0811402077 DBEBE6X-1X/180G24K31A1M

0811402079 DBEBE6X-1X/180G24K31F1M

0811402076 DBEBE6X-1X/315G24K31A1M

R901126712 DBEBE6X-1X/315G24K31F1M

0811402115 DBEBE10Z-1X/180YG24K31A1M

0811402116 DBEBE10Z-1X/315XYG24K31A1M

0811402100 DBEB10Z-1X/180YG24-37Z4M

0811402101 DBEB10Z-1X/315XYG24-37Z4M

0811402117 DBE10Z-1X/180YG24-8NZ4M

0811402118 DBE10Z-1X/315XYG24-8NZ4M

0811402032 DBETX-1X/315G24-25NZ4M

Rexroth proportional relief valve for ships

The Rexroth proportional valve is a hydraulic control device that adjusts the oil flow pressure, flow rate, or direction proportionally by integrating the command values of electrical components. Its working principle is based on the synergistic effect of electromagnetic drive, valve control, and feedback sensors, which can achieve precise continuous control and is widely used in metallurgy, power, engineering machinery and other fields. According to their functions, they can be divided into proportional flow valves, pressure valves, and directional valves, with core models including4WRKEThe4WREEMSome models in the series have closed-loop control function. Debugging and maintenance need to follow specific steps, such as pressure limit settings and cleanliness requirements

working principle

The Rexroth proportional valve converts the input electrical signal into valve core displacement through a proportional electromagnet, achieving continuous control of fluid flow parameters (pressure, flow rate, direction). The pre stage hydraulic pressure drives the valve core to change direction, and some models integrate differential transformers to achieve displacement closed-loop control. The control methods include electromagnetic, electric, and electro-hydraulic, which have the characteristics of strong anti pollution and precise response

Classification and Structure

Functional classification: proportional flow valve, proportional pressure valve, proportional directional valve.

Structural form: slide valve type (such as4WRKESeries) and spiral plug-in type (such as two-way and three-way forms). deadline

0811104082 DBETBX-1X/180G24-16Z4M-37

R901104476 DBETE-6X/420YG24K31A1V

R901103801 DBETE-6X/200YG24K31F1V

R901065548 DBET-6X/200YG24K4V

R901064677 DBETE-6X/200YG24K31A1V

R901064278 DBETE-6X/315YG24K31A1V

R901045246 DBETE-6X/315G24K31F1V

R901045243 DBETE-6X/200G24K31F1V

R901029970 DBETE-6X/350G24K31A1V

R901029969 DBETE-6X/315G24K31A1V

R901029968 DBETE-6X/200G24K31A1V

R901029967 DBETE-6X/100G24K31A1V

R901029966 DBETE-6X/50G24K31A1V

R900701297 DBET-5X/400G24N9K4V-8

0811402140 DBETBEX-1X/80G24K31F1M

0811402075 DBETBEX-1X/180G24K31F1M

0811402141 DBETBEX-1X/315G24K31F1M

0811402023 DBETFX-1X/80G24-27NZ4M

0811402022 DBETFX-1X/180G24-27NZ4M

0811402021 DBETFX-1X/250G24-27NZ4M

0811402020 DBETFX-1X/315G24-27NZ4M

0811402036 DBETX-1X/50G24-8NZ4M

0811408016 DBETX-1X/315G24-8NZ4M

0811402017 DBETX-1X/180G24-8NZ4M

0811402018 DBETX-1X/80G24-8NZ4M

0811402019 DBETX-1X/250G24-8NZ4M

0811402030 DBETX-1X/80G24-25NZ4M

0811402031 DBETX-1X/180G24-25NZ4M

0811402032 DBETX-1X/315G24-25NZ4M

Rexroth proportional relief valve for ships

Proportional relief valve, pilot operated

Specification 6

Installation surface according to DIN 24340 Type A and ISO 4401

Valve used to limit system pressure

Proportional electromagnetic operation

Bottom plate installation, DBE and DBEE types

Stacked type, ZDBE and ZDBEE types

Integrated electronic control (OBE) for DBEE and ZDBEE models

Linear pressure/command value characteristic curve

Model DBE (M) and DBE (M) E

Proportional relief valve, pilot operated

Specification 10 to 32

Installation surface according to DIN 24340 E-type

Valve used to limit system pressure

Proportional electromagnetic operation

Bottom plate installation

Maximum overflow function of DBEM and DBEME models

DBEE and DBEME integrated electronic controllers (OBE)

Linear pressure/command value characteristic curve (specifications 10 and 25)

Introduction to Rexroth Direct Acting Proportional Relief Valve:
DBET and DBETE proportional relief valves, direct acting type
Specification 6
Models DBET and DBETE
Proportional overflow valve, direct acting type
Installation surface according to DIN 24340 Type A and ISO 4401
System pressure limiting valve
Proportional electromagnetic operation
Bottom plate installation
Integrated electronic controller (OBE) for DBTTE type
Linear pressure/command value characteristic curve
Provide screw insertion valves

0811V02006 DBETBX-1X/180G24-16K4M

0811T02017 DBETX-1X/180G24-8NZ4M

0811A02017 DBETX-1X/180G24-8NZ4M

0811A02003 DBETBX-1X/180G24-37Z4M

0811402142 DBETBEX-1X/180G24K31A1V

0811402141 DBETBEX-1X/315G24K31F1M

0811402140 DBETBEX-1X/80G24K31F1M

0811402075 DBETBEX-1X/180G24K31F1M

0811402074 DBETBEX-1X/315G24K0B5M

0811402073 DBETBEX-1X/250G24K31A1M

0811402072 DBETBEX-1X/80G24K31A1M

0811402071 DBETBEX-1X/180G24K31A1M

0811402070 DBETBEX-1X/315G24K31A1M

0811402039 DBETX-1X/180G24-25NZ4M-36

0811402038 DBETX-1X/25G24-25NZ4M-36

0811402037 DBETX-1X/350G24-25NZ4M

0811402036 DBETX-1X/50G24-8NZ4M

0811402035 DBETX-1X/250G24-25NZ4M

0811402034 DBETX-1X/50G24-25NZ4M

0811402032 DBETX-1X/315G24-25NZ4M

0811402031 DBETX-1X/180G24-25NZ4M

0811402030 DBETX-1X/80G24-25NZ4M

0811402028 DBETX-1X/250G24-8NZ4M-34

0811402027 DBETX-1X/250G24-8NZ4M-35

0811402026 DBETX-1X/180G24-8NZ4M-34

0811402024 DBETX-1X/250G24-25NZ4M-39

0811402023 DBETFX-1X/80G24-27NZ4M

0811402022 DBETFX-1X/180G24-27NZ4M

0811402021 DBETFX-1X/250G24-27NZ4M

0811402020 DBETFX-1X/315G24-27NZ4M

0811402019 DBETX-1X/250G24-8NZ4M

0811402018 DBETX-1X/80G24-8NZ4M

0811402016 DBETX-1X/315G24-8NZ4M

8 reasons to choose Ningbo Bingsheng Industrial Technology Co., Ltd. for cooperation

With over 10 years of experience in the hydraulic industry and professional services, we provide procurement consulting for all European and American brand spare parts

◆. Legitimate customs declaration, A-class customs enterprise, can provide customs declaration form and certificate of origin

◆. Quality assurance: Each oil pump undergoes specialized testing equipment before shipment to ensure quality;

◆. German American joint venture as procurement platform

◆. Adequate inventory of over 400 square meters of spot warehouse, ready for shipment at any time;

◆. Collaborate with multiple European and American technology distributors or system integrators to integrate procurement

◆. Original European and American domestic procurement, guaranteed genuine products, with a 100% compensation for counterfeit products

◆. More than 20 brands with complete models, over 31200 models, and 8000 pieces in stock;

The warehouse has over 10 million in stock and is your emergency warehouse

Rexroth proportional relief valve for ships