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Brevini Power Transmission
Proportional directional valves HPV41 HPV77

Proportional directional valves HPV41 HPV77

Product catalog summary

Overview: The document is a comprehensive technical catalogue for HPV41 and HPV77 proportional directional valves, emphasizing enhanced dynamic performance and multifunctional integration. These valves ensure directional and flow control independent of load variations, utilizing the proportional hydraulic principle.

Main Features:

Flow control remains consistent regardless of pressure changes.
Enables simultaneous operations without reciprocal effects due to independent flow control for each function.
Features electrical unloading of signals and precise flow control without dead bands.
Compatible with both fixed and variable displacement pumps with Load Sensing regulator.
Includes remote control capabilities and internal pilot line supply.

Hydraulic Fluids:

Mineral oil fluids should have a high viscosity index, low yield point, and excellent anti-wear properties.
Ecological fluids like vegetable oils are usable, but synthetic fluids require specific gaskets.

Fluid Filtering:

Efficient operation depends on oil contamination levels; recommended filters should meet NAS 1638 class 9 standards.
Built-in filters protect key components but are not suitable for entire circuit filtration.

Modules and Controls:

Detailed sections on HPV41 and HPV77 modules, dimensions, hydraulic diagrams, and ordering codes.
Electrohydraulic controls and module selection charts are provided for both HPV41 and HPV77.

ATEX Version:

Introduction to ATEX Directive and electro-hydraulic features of MHOX-MHPX modules.

Specifications: The document outlines features and identification markings for MHOX-MHPX and MHOFX-MHPODX-MHPEDX modules, providing code numbers and dimensions for proper identification and compatibility with hydraulic systems.

Safety Instructions and Maintenance: Emphasizes correct installation and operation to prevent accidents, with maintenance procedures for optimal performance and longevity.

Hydraulic System Configurations: Describes two main configurations for the HPV 41 inlet section: open centre and closed centre systems, each with specific components crucial for controlling hydraulic flow and pressure.

Open Centre System: The flow/pressure regulator unloads the entire pump flow when not in use, adapting to the actual flow required during operation, with detailed hydraulic diagrams and sectional drawings.

Closed Centre System: Maintains pressure regulation with a main pressure relief valve calibrated to a higher pressure than the maximum working pressure, suitable for load-sensing pumps.

Solenoid Valves: Details the use of solenoid valves for unloading LS signals, critical for stopping actuator movements and managing pressure levels within the system.

Appendix: Provides a unit conversion chart for interpreting and applying technical data across different measurement systems.

Technical Specifications: Includes maximum working pressure, oil temperature, viscosity, and contamination class standards, with recommendations for optimal performance.

Procedures: Details procedures for using HPV 41 modules, including hydraulic fluid specifications and potential use of alternative fluids with technical approval.

Norms and Standards: References standards such as NAS 1638 and ISO 4406 for contamination levels, and DIN 51524 and 51525 for hydraulic fluids.

Recommendations: Provides recommended oil temperature and viscosity ranges, and suggests using internal filters with a mesh size of 100 µm for HPV 41.

Flow Characteristics: Includes flow characteristics for sections with and without compensators, detailing pressure drops and flow independence from load.

Modules and Ordering Codes: Describes various modules such as HSE and HFLS, with specific ordering codes for different configurations and applications.

Hydraulic Diagrams: Includes diagrams illustrating hydraulic connections and configurations for different modules and systems.

Key Components: Describes key components such as the CRP04HP electrical LS unloading valve for high-pressure applications.

Pressure Reducing Valve and Hydraulic System Overview: Describes the function and specifications of a pressure reducing valve providing a low-pressure line to feed electrohydraulic modules and hydraulic manipulators.

Spool and Pump Operation: Details spool operation and pump flow adjustments based on spool stroke and pressure differential.

Pressure Compensators and Relief Valves: Explains the role of pressure compensators in maintaining constant pressure drop and flow across spools.

Fixing Instructions: Emphasizes the importance of secure distributor fixing to prevent malfunctions or oil leaks.

Hydraulic Features: Lists key specifications such as rated flow, max working pressure, oil temperature range, and viscosity range.

Dimensions and Configurations: Provides detailed dimensions for various configurations of the HPV 77 system, with specific fixing instructions and port positions.

Hydraulic Diagrams: Includes diagrams illustrating system configurations and interface options.

Overview: Provides technical specifications and ordering codes for HPV 77 hydraulic modules, focusing on elements with and without pressure compensators.

1. HEM Modules Without Pressure Compensator: Available with adjustable LSA/B pressure relief valves or a single pressure relief valve prearranged for anti-shock and anti-cavitation valves.

2. HEM Modules With Pressure Compensator: Includes adjustable LSA/B pressure relief valves and prearranged for shock-suction valves and electrical signal unloading modules.

3. HPV 77 Modules - Code Numbers: Includes a range of shock and suction valves for A-B ports, both adjustable and non-adjustable, with specific bar settings.

4. HEAS Modules - Flow Control: Details on main spools for flow control, available in double and single acting configurations, with various flow rates and positions.

5. Pressure Control Spools: Designed to stabilize pilot pressure in systems with overcenter valves, improving system stability.

6. Typical Spool Oil Flow Tolerances: Provides flow rate tolerances for different spool sizes at maximum travel.

7. EU Flow Restrictors: Mandatory for spools equipped with electrical unloading modules, ensuring proper function of LSA/B signals.

8. HSC Module - End Section: Options for end sections with or without ports, requiring specification of connection type.

9. Additional Components: Includes external drain cartridges and stay bolts kits for HSC modules, with specific codes and connection types.

Overview: Provides technical specifications and ordering codes for various modules and interfaces related to the HPV 77 hydraulic system.

Specifications: Includes tightening torques, hydraulic connections, and material recommendations for different applications.

Modules and Interfaces: Describes various modules and interfaces, such as HSIF, HPFS, HSEF, HCH, and MHFK, with specific applications and recommendations.

Recommendations: Provides recommendations for applications with high flow differences and environments with harsh conditions.

Technical Specifications: Includes maximum flow, leakage, excitation frequency, duty cycle, hydraulic fluids, oil viscosity, oil temperature, contamination level, cartridge filter, degree of enclosure, weight, and tightening torques.

MHCP Module: Describes the MHCP electrohydraulic proportional module for remote control of working pressure on A/B ports using an electric current signal.

MHPF Module: Describes the MHPF module, which adjusts the spool position proportionally to an electric current signal.

HCK Module: Similar to the MHPF, the HCK module adjusts spool position based on an electric current signal.

MSPF Module: Part of a new series of PWM open-loop electrical activation units, recommended for medium resolution proportional control.

Technical Data for MHPF, HCK, MSPF Modules: Includes rated voltage, supply voltage, max ripple, max current, power consumption, start spool travel, end spool travel, heat insulation, oil temperature, dither adjustment, inductance, current variation, duty cycle, reaction time, and degree of enclosure.

Overview: Provides detailed technical specifications and wiring diagrams for HPV 77 modules, focusing on the MHPF, HCK, MSPF, MHOF, MHPOD, and MHPED modules.

MHOF Electrohydraulic On-Off Module: Describes the MHOF module, which controls spool movement based on an on-off electrical signal.

MHPOD Electrohydraulic Proportional Module: Describes the MHPOD module, an open-loop module designed for simple proportional control.

MHPED Electrohydraulic Proportional Module: Describes the MHPED module, a closed-loop module with digital technology for precise control.

Wiring Diagrams: Provides detailed wiring instructions for each module, including verification steps using a multimeter.

Conclusion: Emphasizes the importance of selecting the appropriate module based on specific operational requirements and safety needs.

Introduction: Discusses the MHPED system, focusing on its active and passive versions and their respective safety features.

Specifications: Describes the MHPED Active Version, which provides the highest safety level against spool positioning failures or electrohydraulic/mechanical malfunctions.

Procedures: Details the system's reaction to errors, putting the hydraulic circuit into venting conditions to prevent uncontrollable machine movements.

Active Fault Monitoring Reactions: Describes the system's response to errors, including deactivation of solenoid valves and alarm signals.

Passive Version: Lacks a fault monitoring system, requiring operator intervention to manage malfunctions.

Safety Levels: Outlines different safety levels based on system configuration and operator intervention.

Wiring and Signal Control: Provides wiring diagrams for the MHPED module, detailing input signal controls for various configurations.

Conclusion: Emphasizes the importance of assessing the protection system's degree and suggests custom-built solutions for specific safety and performance needs.

Specifications: Describes the MHPEPD electrohydraulic proportional module, an advanced version of closed-loop control modules.

Procedures: Details the module's response to error states, including lamp flashes indicating probable causes of failure.

Technical Data: Includes the module's technical specifications, such as supply voltage range, maximum ripple, input signal control ranges, power consumption, heat insulation class, fault monitoring system, and reaction times.

Wiring Diagrams: Provides wiring diagrams for the MHPEPD module, illustrating configurations with and without a neutral position switch.

Module Selection and Ordering Codes: Provides a selection chart and ordering codes for various modules within the HPV 77 series.

Overview of Directive 94/9/EC: Discusses the ATEX directive, focused on minimizing risks associated with using products in potentially explosive environments.

Key Specifications: Products must meet essential safety requirements based on risk evaluations at the time of use.

Product Definitions: Defines "product" as machines, devices, control elements, and systems that could potentially cause explosions.

Installation and Compliance: Provides installation instructions to ensure compliance with the directive post-installation.

Temperature Considerations: Emphasizes the importance of maximum surface temperature in preventing explosions.

Classification and Risk Analysis: Requires classification of areas, mixtures, and product categories based on risk analysis.

Conformity Evaluation: Manufacturers must determine operating conditions, explosive mixture types, and likelihood of explosive atmospheres for conformity evaluation procedures.

Introduction: Provides an overview of the ATEX directives and their application to products used in potentially explosive atmospheres.

Zone Areas: Defines zones based on the likelihood of explosive atmospheres, categorized as gas-air or dust-air mixtures.

Explosive Mixtures: Products are marked with 'G' for gas-air mixtures and 'D' for dust-air mixtures.

Group I and II Classifications: Describes equipment classifications for underground mines and environments outside mines with potential explosive atmospheres.

Electro-Hydraulic Modules: Describes the MHOX and MHPX series, designed according to ATEX 94/9/EC for zones 1 and 21.

Testing and Certification: Modules undergo rigorous testing and quality checks as per ISO 9001:2008 standards.

Technical Specifications: Provides details on electrical characteristics for MHOXA, MHOXB, MHOXAH, and MHOXBH actuators.

Technical Specifications: Includes integrated diode for limiting switch-off overvoltage, short-circuit protection, duty cycle, maximum input pressure, fluid temperature range, ground connection, protection class, hydraulic oil compliance, protection ratings, and shock resistance.

Hydraulic Data (MHOXAH – MHOXBH): Includes maximum pilot pressure oil supply, start spool flow, and end spool flow.

Electrical Characteristics (MHPXA, MHPXB, MHPXAH, MHPXBH): Includes nominal voltage options, voltage range, coil resistance, rated current, maximum current regulation range, maximum power, start spool travel, end spool travel, pilot pressure, power supply, maximum static pressure, ambient temperature range, and connection cable.

Identification and Marking: All modules come with a registered mark plate and a declaration of conformity according to the 94/9/EC Directive.

Safety Instructions: Provides safety instructions for installation, maintenance, and use of modules.

Use and Maintenance: Adheres to functional limits and solenoid safety instructions, with periodic checks for encrustations, cleanliness, wear, and proper valve function.

Conveying and Storing: Ensures correct transport and storage to maintain protection characteristics and operation.

Overview: Provides technical specifications and operational guidelines for various electro-hydraulic proportional modules, specifically the MHPXAH, MHPXBH, and HSEVX modules.

Specifications: Includes details on MHPXAH and MHPXBH modules, allowing remote monitoring and control of the primary hydraulic state using both electric signals and hydraulic control.

Operational Guidelines: Describes the precise positioning of the distribution spool by hydraulic pressure or solenoid valves.

Technical Features: Includes details on the HSEVX module, a safety solenoid valve for unloading LS signals and pump unloading.

Certification and Labelling: Modules fitted on the proportional valve with MHOX modules are subject to complete certification, with labelling indicating compliance with ATEX standards.

Overview: Provides detailed technical specifications and operational guidelines for various electro-hydraulic proportional modules used in controlling primary hydraulic stages remotely via electric signals.

1. MHPXB Module: Describes the single-acting electro-hydraulic proportional device for remote control of the primary hydraulic state using an electric signal.

2. MHPXA + MHPXB Modules: Describes the double-acting configuration by coupling MHPXA and MHPXB.

3. MHPXAH Module: Describes the single-acting electro-hydraulic proportional device with dual control (electric and hydraulic).

4. MHPXBH Module: Similar to MHPXAH but operates on port B.

5. MHPXAH + MHPXBH Modules: Describes the double-acting configuration by coupling MHPXAH and MHPXBH.

6. HSEVX Module: Describes the safety solenoid valve for unloading LS signals and pump unloading.

7. MHFOX Module: Describes the electrical unloading module for LSA/B signals, Atex version.

Technical Specifications: Includes nominal voltage options, coil resistance, current limits, power limits, ambient temperature range, fluid temperature range, maximum input pressure, switching pressure, protection class, and shock resistance.

Certification and Labelling: Modules are subject to complete certification when fitted on the proportional valve with MHOX modules.

Installation Instructions: Provides detailed fixing instructions for the distributor, emphasizing the importance of correct installation.

Electro-Hydraulic Modules: Describes various electro-hydraulic modules, such as MHOFX, MHPCX, MHPODX, and MHPEDX, used for remote control of hydraulic stages.

Identification and Compliance: All modules come with an identification plate and a declaration of conformity according to ATEX and IECEx directives.

Module Descriptions: Describes the MHOFX module, an on-off electrohydraulic module, and the MHPCX module, a proportional electrohydraulic module.

Overview: Provides technical specifications and descriptions of various electrohydraulic modules, including MHPCX, MHPODX, MHPEDX, and MHOFX.

MHPCX Module: Operates based on an electric current signal from a remote control, lacking an inductive position transducer and electronic fault detection.

MHPODX Module: An open-loop electrohydraulic module designed for simple proportional control.

MHPEDX Module: A closed-loop electrohydraulic module offering precise metering control, low hysteresis, and fast system reaction.

MHOFX Module: An on-off electrohydraulic module that moves the spool based on an electric signal.

General Specifications: All modules are designed to meet EMC requirements and feature DIN43650 connectors.

Overview: Provides technical specifications and descriptions for various electrohydraulic modules, including MHPCX, MHPODX, and MHPEDX.

MHPCX Module: Operates without an inductive position transducer and electronic fault detection circuits.

MHPODX Module: An open-loop electrohydraulic unit based on digital technology.

MHPEDX Module: A closed-loop electrohydraulic unit with digital technology.

Technical Data: Includes rated voltage, max power consumption, analog control input options, IP67 enclosure protection, and EMC compliance.

Appendix: Includes a unit conversion chart for length, volume, mass, force, torque, pressure, temperature, and kinematic viscosity.

Catalog excerpts

Proportional directional valves HPV41 HPV77-1

HPV41 HPV77 PROPORTIONAL DIRECTIONAL VALVES Technical Catalogue January

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Proportional directional valves HPV41 HPV77-3

Per il nostro prodotto gli obiettivi dello sviluppo sono da un lato il Optimised performances and integration of the greatest number of miglioramento delle prestazioni dinamiche, dall’altro functions are the objectives planned and achieved through the l’integrazione nelle valvole di un numero sempre maggiore di development of the HPV valves, a range of the latest generation of funzioni. Gli HPV sono valvole direzionali proporzionali proportional directional valves that perform two simultaneous dell’ultima generazione che realizzano due funzioni functions: directional control and flow control...

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Proportional directional valves HPV41 HPV77-4

Le principali caratteristiche idrauliche degli HPV sono sintetizzabili nei seguenti punti: The main hydraulic features of the HPV valve are summarised below: • II controllo della portata (metering) e indipendente dal carico, quindi la velocita impostata agli utilizzi non cambia al variare delle pressioni alle quali essi lavorano. • La portata di ogni funzione e indipendente dalle pressioni di lavoro simultanee, consentendo cosi manovre contemporanee senza influenze reciproche. • Messa a scarico elettrica dei segnali LsA e LsB su ogni elemento. • Ottime caratteristiche di regolazione della portata,...

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Proportional directional valves HPV41 HPV77-5

Fluidi idraulici a base minerale Tutti i fluidi a base di olio minerale sono piu o meno adatti all’impiego. Le proprieta del fluido richieste sono: - alto indice di viscosita - basso punto di scorrimento - elevata stabilita termica - elevata stabilita idrolitica (minima formazione di fenomeni corrosivi in presenza di acqua) - ottime proprieta antiusura, antiruggine e ottima demulsivita I requisiti sopra elencati sono generalmente soddisfatti dai normali fluidi a base minerale denominati HLP e HVLP secondo DIN 51524. Fluidi idraulici ecologici Tenendo conto dei requisiti minimi secondo Din 51524...

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Proportional directional valves HPV41 HPV77-6

BREVINI Motion Systems

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Proportional directional valves HPV41 HPV77-7

BREVINI Motion Systems

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Proportional directional valves HPV41 HPV77-9

INDICE / INDEX MODULI HPV41 / HPV41 MODULES Sezioni d’entrata / inlet sections Dimensioni d’ingombro, schemi idraulici / overall dimensions, hydraulic diagrams Caratteristiche idrauliche, curve caratteristiche / hydraulic features, characteristic curves Moduli HSE, HEM / HSE, HEM modules Codici d’ordine Moduli HEAS, HSC, kit tiranti / HEAS, HSC modules, stay bolts kits ordering codes Moduli e comandi / modules and controls Comandi elettroidraulici/ electrohydraulic controls Tavola di selezione moduli / Modules selection chart Modulo d’ordine HPV41 / HPV41 Order Form MODULI HPV77 / HPV77 MODULES...

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Proportional directional valves HPV41 HPV77-11

■ HPV41 PROPORTIONAL DIRECTIONAL VALVE

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Proportional directional valves HPV41 HPV77-13

Sezione di entrata HPV 41, standard Standard HPV 41 inlet section Regolatore di portata a 3 vie 3 way flow regulator Valvola di massima pressione Pilot pressure relief valve Valvola riduttrice di pressione Pressure reduction valve Connessione bassa pressione Low pressure port, 19 22 bar centro aperto open centrecentro chiuso closed centre Sono suddivise in due versioni: - centro aperto per l’impiego con pompe in cilindrata fissa - centro chiuso per l’impiego con pompe load-sensing Nelle versioni in centro aperto il regolatore di portata/pressione pos.1 durante le fasi di non lavoro del distributore,...

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Proportional directional valves HPV41 HPV77-14

HSE, sezione di entrata HPV 41 con elettrovalvola di messa a scarico segnale LS (CRP04HP) HSE, standard HPV 41 inlet section with solenoid LS unloading valve (CRP04HP) LP Regolatore di portata a 3 vie 3 way flow regulator Valvola di massima pressione Pilot pressure relief valve Valvola riduttrice di pressione Pressure reduction valve Elettrovalvola di messa a scarico segnale LS Solenoid LS unloading valve Connessione bassa pressione Low pressure port, 18 v 22 bar centro aperto centro chiusoopen centre closed centre Tutte le versioni possono essere fornite di elettrovalvola di messa a scarico...

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Proportional directional valves HPV41 HPV77-15

HSE, sezione di entrata HPV 41 con valvola di messa a scarico pompa (HSER) HSE, standard HPV 41 inlet section with pump unloading valve function (HSER) Regolatore di portata a 3 vie 3 way flow regulator Elemento logico a cartuccia HSER Cartridge logic element, HSER Connessione bassa pressione Low pressure port, 18 ÷ 22 bar Sia nelle versione in centro aperto che in centro chiuso, è possibile montare un elemento logico a cartuccia pilotabile a distanza (pos. 5) per la messa a scarico rapida della pompa, bypassando il regolatore di portata/ pressione (pos. 1). In the open and closed centre versions,...

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Proportional directional valves HPV41 HPV77-16

2. FILTRO LINEA BASSA PRESSIONE 3. VALVOLA DI MASSIMA PRESSIONE GENERALE 4. CONNESSIONE MANOMETRICA PRESSIONE POMPA 5. ELETTROVALVOLA PER MESSA A SCARICO SEGNALE LS 6. VALVOLA RIDUTTRICE DI PRESSIONE 7. FILTRO LINEA LOAD SENSING 8. VALVOLA DI MAX LINEA BASSA PRESSIONE 9. VALVOLA ANTISHOCK E ANTICAVITAZIONE 11. COMPENSATORE DI PRES SIONE 13. ELETTROVALVOLA DI MESSA A SCARICO DEL SEGNALE LSB 14. ELETTROVALVOLA DI MESSA A SCARICO DEL SEGNALE LSA 16. REGISTRO PER REGOLAZIONE FINE, PORTATA UTILIZZO A 17. REGISTRO PER REGOLAZIONE FINE, PORTATA UTILIZZO B 18. CAPPELLOTTO PER CINEMATISMO COMANDO MANUALE...

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Proportional directional valves HPV41 HPV77-17

Schema idraulico HPV 41 per sistema in centro aperto HPV 41 hydraulic diagram for open centre system 1.REGOLATORE PORTATA/PRESSIONE 2.FILTRO LINEA BASSA PRESSIONE 3.VALVOLA DI MASSIMA PRESSIONE GENERALE 4.CONNESSIONE MANOMETRICA PRESSIONE POMPA 5.ELETTROVALVOLA PILOTA PER MESSA A SCARICO POMPA 6.VALV. RIDUTTRICE DI PRESSIONE 7.FILTRO LINEA LOAD SENSING 8.VALVOLA DI MASSIMA LINEA BASSA PRESSIONE 9.VALVOLA ANTISHOCK E ANTICAVITAZIONE 10.VALVOLA DI MASSIMA PRESSIONE LS 11.COMPENSATORE DI PRESSIONE 12.VALVOLA DI SCAMBIO 13.ELETTROVALVOLA DI MESSA A SCARICO DEL SEGNALE LSB 14.ELETTROVALVOLA DI MESSA...

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Proportional directional valves HPV41 HPV77-18

Descrizione del gruppo HPV 41 con sezione di entrata HSE in centro aperto Function - HPV 41 valve group with HSE open centre inlet section Con le aste di distribuzione 15 in posizione centrale, la linea LS, la camera lato molla del regolatore di portata/pressione (1), la camera lato molla del compensatore di pressione (11) sono collegate con lo scarico (T) consentendo alla portata della pompa di defluire al serbatoio attraverso il regolatore di portata/pressione (1). La portata della pompa, il carico della molla del regolatore di portata/pressione (1), e la contropressione agente sulla linea...

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