Proportional pressure control valve, relieving, direct. They operate in association with offboard driver, which supply the proportional valves with proper current to align the valve. Learn more about eaton vickers proportional pressure relief valves model codes, performance data, and installation dimensions in this technical catalog pdf 236 kb, 512003 technical data sheets. Pressure relief valve stainless steel or brass up to 750 psig vr7 series. The total pressure drop through the venting 2way valve and pipework is additive to the pressure at p. As modular valve, for electrical control of supply or working pressure.
These valves can be used for infinitely adusting the pres. Pvg 16 features pvg loadsensing proportional valves features and benefits summarized in bullets below. As pressure in a working port changes, it modifies reducingvalve pressure to maintain a constant 150psi drop across the proportional valves spool. The proportional solenoid proportionally converts the electrical current into a mechanical force. Industrial and mobile hydraulic proportional valves enable a precise directional or flow control. The valve consists of a poppet, seat, spring and proportional. They are actuated by a proportional solenoid with central thread and detachable coil. Operation r series relief valves open when system pressure.
Operations the ver03m valves are designed to modulate pressure in a hydraulic. It serves as a pilot valve for a low flow rate hydraulic system or a proportional electrohydraulic control valve and controls the pressure in proportion to the input current. Series vbyk is a pilot operated pressure valve with ex ternal drain. Ebg proportional pressure relief valve is combine with a small high performance electro proportional solenoid valve and pressure relief valve house where screwed a low noise logic cartridge valve. Every r series proportional relief valve is tested for set and resealing performance. In the following sections, we shall discuss the basic principles of operation of the proportional valve, its characteristics, its use in pressure, flow and directional control and some applications. Pressure relief valves series r4v r6v proportional 450 r4vr6v prop dd rh 07. Electroproportional cartridge valves sun hydraulics. Onboard ramp adjustment pab t 7pin plug functional symbol typical section eaton vickers proportional pressure relief valves vvlpomc002e may 2003.
Proportional relief valves direct, without transducer f005 rzmea t p cart rzmea p t table f0054e rzmea, cart rzmea poppet type, direct, proportional pressure relief valves for open loop pressure controls. Integrated ls pressure relief valve threaded ports for ptls and m measuring gauge optional ls unloading valve, pvpx optional t0 facility and external t0 port all modules can be manually activated with the pvm actuation. Pilot remote pressure control on axial piston pumps drg control a4v, a10v, a15v. The valve can also be used as a relief valve for the hydraulic system where a small flow rate and continuous pressure control are required. Proportional pressure relief valves, direct operated. Proportional electrohydraulic pilot relief valve proportional electrohydraulic pilot relief valves this valve consists of a small dc solenoid and a directacting relief valve. Vickers type kcg3 valve, described in catalog 2162. Circuit pressure control when the pressure in a circuit is directly controlled with this valve, set the trapped oil volume being more than 40 cm 2. Proportional pressure relief valves proportional valves eaton.
They basically consist of a screwedin proportional pilot valve 1 and the main valve 2. Pilotoperated proportional valve for limiting system pressure. Excellent repeatability and stable performance results from cartridge design of mainstage elements. When the operating pressure is reached, the poppet spool opens and connects the protected line to the tank. Proportional directional valves industrial hydraulic. The pressure relief valve 1 in pvp should be set at a pressure of approximately 30 bar 435 psi above maximum system pressure set on the pump or external pressure relief valve. This valve regulates pressure in proportion to the electrical command value. Proportional pressure relief valves onics catalog h142550us dd, ddp b14 parker hannin corporation hydr alv division elyr b technical information the parametrizing cable may be ordered under item no. Direct operated proportional pressure relief valve in screwin cartridge construction for cavity according to iso 7789.
Catalog h142550us proportional pressure relief valves onics. Once a condition occurs that causes the pressure in a system or vessel to increase to a dangerous level, the pressure relief valve may be the only device remaining to prevent a catastrophic failure. Efbg hydraulic proportional pressure flow control valve is used to control pressure and flow separately in hydraulic system through two electric signal, it can trace load pressure with a small differential pressure in order to control the output power of pump. This valve consists of a small dc solenoid and a directacting relief valve. Type dbetx proportional pressure relief valves are remotecontrolled pilot valves in conical seat design. E external pilot y external drain only pipe connection g14 electronics options. Return to proportional pressure relief valves alpha. Resealing pressure is the upstream pressure at which there is no indication of flow. Proportional pressure relief valve, pilotoperated, rising. Since reliability is directly related to the complexity of the device, it is important that.
Proportional pressure relief valves, pilot operated. Swagelok proportional relief valves should never be used as asme boiler and pressure vessel code safety relief devices. It serves as a pilot valve for a low flow rate hydraulic system or a proportional electrohydraulic control valve and controls the pressure in. The parker vr7 series pressure relief valve is designed to ensure safety and protection of downstream process equipment by venting excess pressure from a regulator should a minor seat leak occur.
Proportional pressure relief valve mounting hole configuration to x iso 44010302094 unit series 10 to 19 1x 10 to 19. The interior of the solenoid is connected to port t and is filled with pressure fluid. When upstream pressure exceeds the closing force exerted by the valve s spring, the lower stem opens and permits flowthrough the valve s outlet port which can be ducted to a. Values in the us customary unit system are converted and rounded values. Proportional pressure relief valves onics catalog h142550us dd, ddp b11 parker hannin corporation hydr alv division elyr b general size din ng6 cetop 3 nfpa d03 interface subplate mounting according to iso 6264 mounting position as desired, horizontal mounting prefered ambient temperature c20. In a pressure compensated basic module the compensator 14 maintains a constant. Ver03m is a direct operated proportional relief valve, with mounting in compliance with nfpat3. The pilot operated proportional pressure relief valves of the types dbe and zdbe are operated by means of a proportional solenoid.
Valves of types dbe and dbem are pilot operated pressure relief valves. Proportional electrohydraulic pressure control valves. The pde3 valve is a direct operated pressure control proportional valve cetop03, with mounting interface in compliance with iso 4401 standards. The load independent proportional control valve and high performance actuator technology combined with a low pressure drop design improves the machine performance and efficiency increasing productivity and reducing energy consumption. In design terms it is a direct operated pressure relief valve of poppet design. Cleaning and packaging all swagelok r series relief valves are cleaned and packaged in accordance with swagelok standard cleaning and packaging sc10 ms0662. Ebg series can control the system pressure linearly as per the power of input current signal, but the valve should. Proportional relief valves digital, pilot operated, open loop table fs0350e proportional pressure relief valve, pilot operated a open loop pressure control hydraulic options see sect. Exproof proportional pressure relief valves rzma subplate size 06 hzma modular size 06 agmza subplate size 10, 20, 32 1 model code series number voltage code. The valve consists of a poppet, seat, spring and proportional solenoid. Parkers proportional valves employ powerful valve technologies and are well suited for a variety of applications where accuracy and efficiency are a must. Hydraulic valve division elyria ohio sa catalog h142550s proportional pressure relief valves b series r4v and r6v onboard electronics return to section toc return to alpha toc general description series r4v and r6v proportional pressure relief valves feature onboard electronics based on the functionality of the digital amplifier pcd00.
Proportional pressure relief valve, pilot operated model dbem and dbeme features 1 ordering code 2 preferred types 2 symbols 2 function, section 3 technical data 4 and 5 control electronics 5 and 6 electrical connection, cable sockets 5 characteristic curves 7 unit dimensions 8 and 9 sizes 10, 25 1 component series 5x. Relief valve a pressure relief valve characterized by gradual opening or closing generally proportional to the increase or decrease in pressure. Pdf 222 kb, 512003 eaton vickers proportional pressure relief valves technical catalog. Series test set pressure psig bar minimum resealing pressure as a percentage. If pressure at port 1 exceeds the setting defined by the electrical signal, the pilot poppet opens and oil flows from behind the main spool to tank port 2. Vickers proportional valves proportional pressure relief. These valves are also available in standard and inverse functionality. Digital proportional relief valves high performance piloted, with onboard pressure transducer 1 model code fs040 agmzor, agmzoreb, agmzores poppet type, piloted, digital proportional relief valves with onboard pressure transducer for pressure closed loop controls.
Ver03m proportional pressure relief valves ver03m proportional pressure relief valves description ver03m is a direct operated proportional relief valve, with mounting in compliance with nfpat3. Proportional pressure control, din slipin cartridge valves. Catalog hy142555us proportional pressure control valves 3 proportional throttle valve size f5c 4 pilot flow and response pilot ports g14 3 spool type proportional solenoid design series a seals code description 1 nitrile 5 fluorocarbon options code description 06 sae 34 08 sae 1 10 sae 1 34 code pilot maximum flow response omit 1 lpm. Low installed cost and space requirement from high powersize ratios more than double that of many conventional designs. Electroproportional valves pressure control hydraforce. The effect of system back pressure is minimized by the design of these highpressure valves. They are used to limit the pressure in hydraulic systems. Vickers proportional valves proportional pressure relief valves.
Series re06mw proportional relief valves are direct operated proportional valves typically used as remote control valves for flow rates of below 3 lpm 0. The pdb12pz pilotoperated, spool type proportional pressure relief valve is zincplated and corrosionproof. Our valves cover the complete performance range from standard up to maximum dynamics. Proportional pressure relief valve, pilotoperated, rising characteristic curve type kbvs. Pump applies pressure to the righthand side of the pressure adjustment spool 6. Electro proportional valves pressure control ts5821f proportional pressure control, relief, high pressure selection guide similar valves. Proportional pressure relief valves of types dbe and zdbe are operated by means of a proportional solenoid.
When the operating pressure is reached, the poppet spool opens and connects the. Efbg hydraulic proportional pressure flow control valve. The valve consists basically of a housing, proportional solenoid 2 with inductive positional transducer 3, valve seat 4 and valve poppet 5. Proportional pressure relief valves bosch rexroth usa. These valves basically consist of a proportional solenoid 1, housing 2, valve insert 3, spool 4 and pilot poppet 8.
Basically, these valves consist of a pilot valve 1 installed in a. Electro proportional relief valve pilot capacity, high pressure setting with no command. It is suitable to pilot twostage valves, or for pressure control in hydraulic circuits. Features,symbols 2 features x direct operated pressure relief valve for flow upto max. Dbeta proportional pressure relief valves are for high performance applications up to 5 lpm. They are fitted with a manual pressure relief valve which is factory set to. While the valve is vented the system pressure cannot be controlled via the.
Pvg 32 load independent proportional valve service manual. These valves exist as leakagefree poppet valves and spool valves with defined leakage, in direct acting or pilotoperated design. Pde3 proportional pressure relief valve, direct operated. Ts3821 proportional pressure relief valve description a directacting, spooltype, proportional pressure relieving valve, which can be infinitely adjusted across a prescribed range using a variable electric input. Pilot operated relief valve with proportional adjustment. They are used to limit the operating pressure in hydraulic systems. Ts1227 proportional pressure relief valve description a screwin, cartridgestyle, pilotoperated, spooltype hydraulic pressure relieving valve, which can be infinitely adjusted across a prescribed range using a variable electric input. Ventable, pilotoperated, balanced piston relief main stage with integral t8a control cavity and drain to port 4. The valve can be used as a pilot valve of the proportional electrohydraulic control valves.
The minimum pressure drop is obtained when the pilot valve is also deenergized. As pressure in a working port changes, it modifies reducing valve pressure to maintain a constant 150psi drop across the proportional valve s spool. When upstream pressure exceeds the closing force exerted by the valves spring, the lower stem opens and permits flowthrough the valves outlet port which can be ducted to a. High pressure relief valve the parker high pressure relief valve hprv provides an automatic protection mechanism for process instrumentation systems. Resealing pressure is always lower than set pressure. The valves are actuated by means of a proportional solenoid. Connection 1 type male npt connection 2 size 14 in. Return to proportional pressure relief valves alpha catalog. Dbeta proportional pressure relief valve bosch rexroth usa.
Set pressure of each valve after initial relief is repeatable within 5 % at room temperature. Ebg proportional valve, hydraulic proportional pressure. Ebg series can control the system pressure linearly as per the power of input current signal, but the valve should be quipped with power amplifier as. The direct operated proportional pressure relief valve is designed with a builtin pressure relief cartridge m22x1. Denisonhydraulics proportionalpressurecontrolvalves.
By adjusting the electric current at the solenoid the operating pressure changes proportionally. A shuttle valve provides pressure feedback from each cylinder port to the reducing valve s remotecontrol port. Proportional relief valves 3 technical data pressuretemperature ratings set pressure and resealing pressure set pressure is the upstream pressure at which the first indication of flow occurs. The addition of an integral amplifier allows the pressure. Valves of the kbvs type are pilotoperated proportional pressure relief valves of poppet design and used for limiting the pressure in hydraulic systems. Catalog h142550us proportional pressure relief valves. Proportional pressure relief valves of type dbet are remote control valves of poppet design and are used to limit a system pressure. The valve is designed for continuous regulation of system pressure. Proportional pressure relief valves bosch rexroth ag. Proportional pressure relief valves series re06mt parker hannifin. Pressure relief valve engineering handbook chapter 2 terminology safety valve a pressure relief valve characterized by rapid opening or closing and normally used to relieve compressible fluids. Hydac proportional pressure relief valves are continuously adjustable valves which limit the output pressure depending on the electrical current. Sun three port proportional pressure reducingrelieving valves offer electro proportional pressure control with relief capacity. A shuttle valve provides pressure feedback from each cylinder port to the reducing valves remotecontrol port.
Part description stainless steel low pressure proportional relief valve, 14 in. Fnpt ssrl3m4f4 body material 316 stainless steel cleaning process standard cleaning and packaging sc10 connection 1 size 14 in. A direct operated proportional poppet pressure relief valve in the form of a screwin cartridge. This unit is an electrohydraulic, proportional, screw in cartridge style, pilot operated, sliding spool type, high pressure reducing and relieving control valve. Max pressure 350 bar 10 shf005 srzmea valve body poppet proportional solenoid screw for air bleeding electric connector type 666 supplied with the valve series number proportional pressure relief valve srzme subplate mounting cart srzme cartridge execution a open loop pressure control configuration. Function when the pressure in port p or a exceeds the pressure setting at the solenoid, the cone opens to port t and limits the pressure in port p to the adjusted level.
Operations the ver03m valves are designed to modulate pressure in a hydraulic circuit directly proportional to the input current to the valve. Proportional pressure relief valves vickers proportional valves. With these valves it is possible to steplessly adjust the system pressure to be limited depending on. To set the minimum cracking pressure use the adjusting screw s5 which incorporates also the air bleed screw. The pressure relief valve 1 opens if the load pressure exceeds the set value, diverting pump flow back to tank. Pressure output is inversely proportional to dc current input. Swagelok proportional relief valves are not safety accessories as defined in the pressure equipment directive 201468eu. The inner chamber of the solenoid is connected with port t. The ver03m valves are designed to modulate pressure in a hydraulic circuit directly proportional to the input current to the valve. Proportional relief valves, low pressure specifications.