REXROTH relief valve DBEME20-5X/315YG24K31M in stock
$464.87
Sometimes, the German REXROTH relief valve may experience pressure regulation failure during use. There are two situations where the pressure regulation of the pilot-operated relief valve fails: one is that the pressure cannot be built up by adjusting the pressure regulating handwheel, or the pressure cannot reach the rated value; the other is that the pressure does not decrease when adjusting the handwheel, or even continues to increase. In addition to the valve core being radially jammed due to various reasons, the following are some other reasons for the pressure regulation failure: First, the damper of the main valve body (2) is blocked, and the oil pressure cannot be transmitted to the upper chamber of the main valve and the front chamber of the pilot valve, so the pilot valve loses its function of regulating the pressure of the main valve.
Brand
REXROTH/German Rexroth
Application Areas
Environmental Protection, Chemical Industry, Petroleum, Mining, Comprehensive
REXROTH Proportional Relief Valve
"Relief valve" and "safety valve" are two different names for relief valves when they function as relief valves for pressure stabilization and safety valves for pressure limiting protection. When a relief valve functions as a relief valve for pressure stabilization, it is called a relief valve; when it functions as a safety valve for pressure limiting protection, it is called a safety valve. How to distinguish them? Consider the following two aspects:
1. Examine the hydraulic circuit structure
In a fixed-displacement pump speed control system, since the pump's oil supply flow rate is constant, when the flow rate is adjusted through a throttle valve (throttle speed control process), excess flow overflows back to the oil tank from the relief valve. In this case, the relief valve serves two purposes: setting the system pressure and stabilizing the pressure during flow rate adjustment by the throttle valve. The relief valve is open (normally open) during this type of operation.
In a variable-displacement pump system, speed adjustment is achieved by changing the pump's flow rate. During this process, no excess flow overflows from the relief valve, and the relief valve is not open (normally closed). The relief valve only opens and overflows when the load pressure reaches or exceeds its set pressure, preventing the system pressure from rising further. It limits the maximum system pressure and protects the hydraulic system; in this case, the relief valve is called a safety valve.
From the above analysis, we can see that in a speed control circuit, if it's a fixed-displacement pump system, the relief valve acts as a pressure regulator; if it's a variable-displacement pump system, the relief valve acts as a pressure limiting protection, functioning as a safety valve.
2. Observe the hydraulic system's operation process.
In a fixed-displacement pump system, the actuators typically have rapid advance and working advance. During rapid advance and rapid retraction, the load is generally small and the pressure is low, so the relief valve does not open. Only when encountering an abnormally large load during rapid advance or rapid retraction does the relief valve open, limiting the system pressure and protecting the hydraulic system, functioning as a safety valve. During the working advance phase, the load is generally large and the pressure is high; the relief valve sets and stabilizes the system pressure, typically forming a pressure regulating circuit, functioning as a relief valve.
REXROTH Proportional Relief Valve
REXROTH proportional relief valves are valves used to limit system pressure.
Rexroth solenoid valves, Rexroth piston pumps, Rexroth relief valves, Rexroth proportional valves, Rexroth vane pumps
REXROTH proportional relief valve, pilot-operated (high performance)
Size 3
Pilot-operated valve for limiting system pressure
Proportional solenoid operation
Proportional solenoid with center thread and removable coil
Screw-driven cartridge valve
Excellent balance of command value/pressure characteristic curves externally on the controller
Minimum ("A") or maximum ("B") pressure is available in case of power failure
Model DBE
REXROTH proportional relief valve, pilot-operated
Sizes 6 and 10
Size 6: Mounting surface according to ISO 4401
Size 10: Mounting surface according to ISO 5781-AG-06-2-A
Valve for limiting system pressure
DBEBE type integrated controller (OBE)
Proportional solenoid operation
Bosch DBET direct-acting proportional relief valve, Rexroth DBE pilot-operated proportional relief valve, regulated by electromagnet armature position.
Models: DBE(M) and DBE(M)E
REXROTH proportional relief valve, pilot-operated
Sizes 10 to 32
Mounting surface according to DIN 24340 Type E
Valve for limiting system pressure
Proportional electromagnet operation
Base mount
Maximum overflow capacity for DBEM and DBEME types
Integrated electronic controller (OBE) for DBEE and DBEME types
Linear pressure/command value characteristic curves (sizes 10 and 25) Models: (Z)DBE and (Z)DBEE
REXROTH proportional relief valve, pilot-operated
Size 6
Mounting surface according to DIN 24340 Type A and ISO 4401
Valve for limiting system pressure
Proportional electromagnet operation
Base mount, DBE and DBEE types
Stacked type, ZDBE and ZDBEE types Integrated electronic control unit (OBE) for DBEE and ZDBEE types
Linear pressure/command value characteristic curve Bosch DBET type direct-acting proportional relief valve, Rexroth DBE type pilot-operated proportional relief valve
Model KBPS
Proportional relief valve, direct-acting (high performance)
Size 8
Pilot valve
Direct-acting valve for limiting system pressure
Proportional solenoid operation
Proportional solenoid with center thread and removable coil
Screwdriver cartridge valve
Excellent balance of command value/pressure characteristic curve externally on the electronic control unit
Minimum ("A") or maximum ("B") pressure is available in case of power failure
Model DBET
REXROTH proportional relief valve, direct-acting, with position feedback
Size 6
Mounting surface according to ISO 4401
Integrated potentiometer (OBE) for DBETBEX type
Proportional solenoid operation
Bosch DBET direct-acting proportional relief valve, Rexroth DBE pilot-operated proportional relief valve, adjusted by the position of the electromagnet armature.
Models: DBET and DBETE
REXROTH proportional relief valve, direct-acting
Specification: 6
Mounting surface according to DIN 24340 Type A and ISO 4401
System pressure relief valve
Proportional electromagnet operation
Base plate mounting
Integrated electronic controller (OBE) for DBETE type
R900590105 DBETR-1X/350G24K4V-409
R900589889 LFA100DBEM39-6X/400
R900587338 DBE10-3X/50YG24J
R900581719 DBETR-1X/80G24K4V
R900579948 DBE10-5X/200YG24K4M-1
R900579947 DBEM20-5X/200YG24K4M-1
R900579448 DBEM10-5X/200YG24NK4M
R900579169 DBE10-5X/200YG24K4M
R900578827 DBEM20-5X/350YG24K4M
R900574605 DBETE-5X/315G24K31M-1
R900574165 DBEM10-5X/315XYG24K4M-1
R900573629 DBET-5X/315G24K4M-1
R900573568 DBEM10-5X/315YG24NK4M
R900573528 DBETE-5X/250G24K31M
R900573452 ZDBE6VP2-1X/315G24NK4M
R900573436 DBEP6A06-1X/45AG24NK4M
R900573294 DBE6-1X/315G24NK4M
R900573109 DBETE-5X/250G24K31M-1
R900568842 DBEP6B06-1X/45AG24NJV-382
R900565514 DBETE-5X/315YG24K31M-1
R900560531 DBEME20-5X/315YG24NK31M
R900560201 DBETE-5X/100G24K31M
R900556310 DBEE6-1X/200YG24NK31M
R900555424 DBEME10-5X/315XYG24NK31M
R900555376 DBE10-5X/200YG24K4M-1
R900552114 DBEM30-3X/315YG24K4M
R900551840 DBE6-1X/315G24K4M
R900551073 DBEME10-5X/200YG24NK31M
R900549735 DBEME10-5X/350YG24NK31M
R900548548 DBEM20-5X/315YG24NK4M
R900547749 DBET-5X/315YG24K4M-1
R900547462 DBETE-5X/315G24NK31M-1
R900547401 DBEM10-5X/315YG24K4M
R900547290 DBEP6A06-1X/45AG24NM-415
R900546987 DBEE6-1X/315YG24K31M
R900546986 DBEE6-1X/315G24K31M
R900546617 DBET-5X/315G24K4M
R900546061 EINBAUSATZDBE10.-51/
R900544648 EINBAUSATZDBET-51/V-16
R900540169 EINBAUSATZDBEMT-50/
R900536813 DBEME20-5X/315YG24K31M
R900536812 DBEME10-5X/315YG24K31M
R900535115 DBEE10-5X/315YG24K31M
R900534430 DBETE-5X/315YG24K9M-1
R900528808 DBETE-5X/50G24K31M R900528497 DBETR-1X/180G24K4V-575
R900525212 LFA100DBEM43-6X/315
R900520270 LFA80DBEM43-6X/400
R900507785 LFA80DBEM-6X/400
R900504519 LG6DBE-V-005-2X/006Y
R900504170 DBETB-1X/230G24K4M-551 The company mainly deals with European and American brands and can source brands from any European country. For example, our key German brands include: BURKERT, DEMAG, HAWE, REXROTH, HYDAC, PILZ relays, FESTO, IFM sensors, E+H, HEIDENHAIN, P+F sensors, SICK, TURCK, and HIRSCHMANN industrial switches. German brands: Hengstler, Murr, Schmersal, Samson, EPRO (Emerson Group)
American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, VICKERS, ROSS
British brands: Norgren
Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi
