Kick-down relief cartridges act similar to a circuit breaker in an electrical system. The valves will kick completely open and remain open once the pressure at the inlet (port 1) exceeds the valve settting, creating an unrestricted flow path from port 1 to tank (port 2). The valve remains open as long as the pressure at port 1 exceeds the pressure at port 2. To reset the valve, flow from port 1 to port 2 must cease and pressure at port 2 must be equal to or greater than the pressure at port 1.All 2-port relief cartridges (except pilot reliefs) are physically and functionally interchangeable (same flow path, same cavity for a given frame size).To reset valve, flow through the cartridge must cease.Main stage orifice is protected by a 150-micron stainless steel screen.Not suitable for use in load holding applications.Intended for use on the actuator side of the system as flow through the valve must cease for the valve to reset. If used on the pump side of a system, pump flow must be shut off for the valve to reset.Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.Corrosion resistant cartridge valves are intended for use in corrosive environments and are identified by the model code suffix /AP for external stainless steel components, or /LH for external zinc-nickel plated components. See the CONFIGURATION section for all options. For further details, please see the Materials of Construction page located under TECH RESOURCES.Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.

The 10 bar cracking pressure you specified is a standard option for the Bosch Rexroth SV6 pilot-operated check valve .✅ Confirmed Valve SpecificationsAll other key parameters for this valve configuration are confirmed as follows:Parameter ValueType SV (Pilot oil return internal, without drain connection) Nominal Size NS6 / NG6 / CETOP3 Maximum Operating Pressure 315 bar Maximum Flow 60 L/min Cracking Pressure 10 bar (code 4) Porting Pattern ISO 4401-03-02-0-05 Mounting Type Subplate mounting Weight (approx.) 0.8 kg 🔧 Ordering CodeTo specify the 10 bar cracking pressure, you would use the code 4 in the ordering code.The full ordering code follows this structure: SV 6 P B 4 - 6X/... .SV = Pilot-operated check valve with internal pilot oil return 6 = Nominal size 6 P = Subplate mounting B = Without pre-opening (version without dampened decompression) 4 = Cracking pressure of 10 bar 6X = Component series 60 to 69 (dimensions unchanged) /* = Placeholder for additional options like seal material (NBR or FKM) and corrosion resistance

Switching Pressure Control Valves - Pressure Reducing Valve. - Pilot Operated (Cartridge Valve). - Nominal Size 10. - Type DR 10K.

The Bosch Rexroth DR 10 K valve is a pilot-operated pressure reducing valve, specifically designed as a screw-in cartridge for block installation. A configuration with a rotary knob for adjustment is a standard variant of this model .The search results confirm the technical specifications for this valve series, which are summarized below .Key Technical SpecificationsParameter SpecificationType DR 10 K (Pilot-operated pressure reducing valve) Nominal Size 10 Design Screw-in cartridge valve Maximum Operating Pressure 315 bar Maximum Flow 100 l/min Pilot Oil Internal supply, external return (port 3 / Y) Adjustment Type Rotary knob (adjustment type 4) The type code DR 10 K4-3X/...YM includes the rotary knob specification. The "Y" in the code denotes the internal pilot oil supply and external pilot oil return configuration .

For the Rexroth DR 10 K pressure reducing valve, the "Sleeve With Hexagon And Protective Cap" is identified in the ordering code as adjustment type 5. This variant is available as a screw-in cartridge valve with a maximum flow of 100 L/min and is available with maximum secondary pressures of 50, 100, 200, or 315 bar.🔧 Valve IdentificationThe valve can be identified using its type code. The structure DR 10 K5-3X/...YM indicates the following specifications:DR: Pilot-operated pressure reducing valve.10: Nominal size 10.K: Screw-in cartridge valve design.5: Adjustment element is a sleeve with hexagon and protective cap.3X: Component series 30 to 39, with unchanged dimensions.YM: Pilot oil supply is internal, and pilot oil return is external.📋 Common Model VariantsThe following are examples of this valve with different pressure ratings:Model Code Max. Secondary PressureDR 10 K5-3X/50YM 50 barDR 10 K5-3X/100YM 100 barDR 10 K5-3X/200YM 200 barDR 10 K5-3X/315YM 315 bar

The Bosch Rexroth pilot-operated check valve matching your exact specifications—nominal size 20 (NS20), with subplate mounting (P), and the version with pre-opening (A)—is identified by the model number SV 20 P A 1-4X/ .The "A" version includes a pre-opening feature that provides a two-stage opening process to dampen decompression, reducing switching shocks and noise during operation .✅ Technical SpecificationsThe table below summarizes the confirmed performance parameters for this valve family, which align with your requirements :Parameter SpecificationType SV (Pilot oil return internal / Without drain connection) Nominal Size 20 (NS20 / NG20) Maximum Operating Pressure 315 bar Maximum Flow 350 L/min (The valve series supports up to 550 L/min; your specified 350 L/min is within its capacity) Mounting P – Subplate mounting Pre-opening A – With pre-opening 🔧 Ordering Code BreakdownThe valve's specifications are encoded in its model number as follows :SV: Type (pilot-operated check valve with internal pilot oil return).20: Nominal size (NS20).P: Subplate mounting.A: Version with pre-opening.1: Cracking pressure code (standard is 2.5 bar for this size; other options like 5, 7.5, or 10 bar are available via code 2, 3, or 4).4X: Component series 40 to 49 (installation and connection dimensions remain unchanged).For example, the valve with the material number R900587557 corresponds to a model such as SV20PA1-4X/ . Versions with different cracking pressures, like SV20PA2-4X/, are also documented .💡 Understanding the "A" Version (With Pre-Opening)The version with pre-opening offers distinct operational benefits:Operation: When pilot pressure is applied at port X, the control spool moves, pushing first a small ball poppet off its seat (pre-opening), followed by the main seat poppet .Benefits: This two-stage setup provides dampened decompression of the pressure volume on the actuator side, effectively a

Hydraulic Pilot Operated - Switching Isolator Valve - Check Valve (Bosch - Rexroth) , Without Drain Connection - Type SV.

The Bosch Rexroth SV20PB1-4X/ is the specific pilot-operated check valve for subplate mounting that matches your configuration without pre-opening .✅ Confirmed Technical SpecificationsParameter SpecificationType SV (Pilot oil return internal)Nominal Size 20 (NG20)Maximum Operating Pressure 315 bar Maximum Flow Rate 350 L/min Mounting P – Subplate mounting Pre-opening B – Without pre-opening Porting Pattern ISO 5781-08-10-0-16 Weight Approx. 4.7 kg Cracking Pressure 2.5 bar Minimum Pilot Pressure 5 bar 💡 Understanding the "B" Version (Without Pre-Opening)The key feature of this valve variant is that it lacks the two-stage decompression mechanism. In valves without pre-opening (Version B), the pressure volume may be unloaded suddenly, leading to switching shocks, premature wear, and increased noise . This version is suitable for applications where controlled decompression is not critical.

The Bosch Rexroth SV 30 P A 1-4X/ valve is the model that matches your exact specifications: a pilot-operated check valve with a nominal size of NS30, subplate mounting (P), and the version with pre-opening (A).The "A" version includes a two-stage opening process to dampen decompression, reducing switching shocks and noise during operation .✅ Valve Specifications and Ordering CodeYour specifications translate directly into the Rexroth ordering code as follows:Parameter Code MeaningType SV Pilot-operated check valve with internal pilot oil return (no drain connection) Size 30 Nominal size 30 (NS30/NG32) Mounting P Subplate mounting Pre-opening A Version with pre-opening (as specified) Cracking Pressure 1 2.5 bar (standard; other options like 5, 7.5, or 10 bar available with codes 2, 3, or 4) Component Series 4X Component series 40 to 49 (dimensions remain unchanged)A complete ordering code for your configuration follows this pattern: SV 30 P A 1-4X/... .📊 Key Technical Specifications (NS30 / NG32)The technical data confirms the following details for this configuration :Parameter SpecificationMaximum Operating Pressure 315 bar Maximum Flow Up to 550 l/min (your specified flow is well within this capacity) Minimum Pilot Pressure 5 bar Cracking Pressure (Code 1) 2.5 bar Weight Approx. 7.8 - 7.9 kg Porting Pattern ISO 5781-10-13-0-00 Pilot Port X Thread G 1/4 Pilot Volume (port X) 19.27 cm³ Cleanliness Class ISO 4406 20/18/15 💡 Understanding the "A" Version (With Pre-Opening)The "A" version is designed for smoother system operation and includes an additional pre-opening feature. When pilot pressure is applied at port X, the control spool moves and first lifts a small ball poppet (pre-opening), followed by the main seat poppet .This two-stage setup provides distinct benefits :Avoidance of switching shocks: Provides dampened decompression of the pressure volume on the actuator side, preventing sudden, no

The Bosch Rexroth SV30PB1-4X/ valve matches your specified configuration: a pilot-operated check valve with a nominal size of NS30, subplate mounting (P), and the version without pre-opening (B). This valve meets your requirements for a maximum operating pressure of 315 bar and a maximum flow rate of up to 550 l/min .✅ Valve Specifications and Ordering CodeYour specifications translate directly into the Rexroth ordering code, which is structured as follows :Parameter Code MeaningType SV Pilot-operated check valve with internal pilot oil return (no drain connection)Size 30 Nominal size 30 (NS30/NG32)Mounting P Subplate mountingPre-opening B Version without pre-opening (as specified)Cracking Pressure 1 2.5 bar (standard; other options like 5, 7.5, or 10 bar available with codes 2, 3, or 4)Component Series 4X Component series 40 to 49 (dimensions remain unchanged)A complete ordering code for your configuration follows this pattern: SV 30 P B 1-4X/.... Model variants like SV30PB1-4X/V are documented in product listings .💡 Understanding the "B" Version (Without Pre-Opening)The version without pre-opening operates differently from its "A" counterpart, and this has specific implications for your system :Operation: When pilot pressure is applied at port X, the control spool moves and directly lifts the main seat poppet.Impact: The pressurized volume on the actuator side may be unloaded suddenly. This can lead to switching shocks and increased noise, which may cause premature wear on system components .Version B is suitable for applications where controlled decompression is not a critical requirement and a direct, rapid opening is acceptable.

Based on the search results, the Rexroth 4WS2E is a two-stage, 4-way directional servo valve designed for use with external electronics.Here is a summary of its key specifications and characteristics that match your request:✅ Confirmed Product SpecificationsParameter Specification Source(s)Model Series 4WS.2E (Two-stage servo valve) Nominal Size NG6 (Size 6) Valve Type 4-way, mechanical feedback Pilot Stage Nozzle/flapper plate amplifier Max. Operating Pressure 315 bar Porting Pattern ISO 4401-03-02-0-05 (CETOP 3) Nominal Flow 2 ... 25 L/min (at 70 bar differential) The 2 L/min flow rate you specified at a 70 bar valve pressure differential is a standard nominal flow option for this valve series.🔧 Design & Operation FeaturesThe valve is a two-stage unit that combines a torque motor with a hydraulic amplifier. Key design features include:A dry torque motor that separates the electrical coil from the hydraulic fluid to prevent contamination.A nozzle/flapper plate as the first hydraulic stage, which converts the electrical signal from the torque motor into a pressure differential.A spool with mechanical feedback, which provides a direct, wear-free connection to the feedback element.📋 Valve Series and Application ContextThe 4WS.2E series is also available in sizes NG10 and NG16, with maximum flows up to 200 L/min. It is used for applications requiring precise closed-loop control of position, force, or velocity.

The Bosch Rexroth 4WS2E servo valve is a two-stage, 4-way directional valve designed for high-precision closed-loop control applications like position, force, and speed control . It is operated by external electronics (servo amplifier) which are ordered separately .The 5 L/min nominal flow rate you specified is a standard option for this valve when measured at the 70 bar valve pressure differential (35 bar per control edge) . The NG6 (Nominal Size 6) version conforms to the ISO 4401-03-02-0-05 porting pattern .✅ Technical SpecificationsParameter Specification Source(s)Model Series 4WS2E (Two-stage servo valve) Nominal Size 6 (NG6 / CETOP 3) Maximum Operating Pressure 315 bar Nominal Flow (at 70 bar Δp) 5 L/min (±10% tolerance) Porting Pattern ISO 4401-03-02-0-05 🔧 Ordering Code StructureThe Rexroth ordering code for your specific valve follows this structure :4WS2E: Electrically operated 2-stage servo valve for external control electronics .6: Nominal size 6 .2X: Component series 20 to 29 (unchanged installation dimensions) .5: Nominal flow of 5 L/min at 70 bar ....: Additional codes for spool overlap, seal material, and other options .A complete order code example for a 5 L/min valve is 4WS2EM6-2X/5B12ET210K17EV .