RVA0.M18

RVA0.M18

RVA0.M18

Product catalog summary
Overview
The document provides technical details about the RVA valve, a direct-acting relief valve with anti-cavitation features. It combines shock relief and anti-cavitation functions in a compact cartridge design, suitable for hydraulic circuits requiring low internal leakage and limited hysteresis.

Technical Features
  • The RVA valve opens to the tank when inlet pressure reaches the set point, with a built-in deflector to limit pressure rise.
  • It offers excellent response to load changes and stability due to innovative internal dampening.
  • Allows free reverse flow with a light bias spring, facilitating flow from side to nose.
  • Constructed with zinc-plated, corrosion-proof surfaces and high-strength steel parts.
  • Poppet and internal seat are hardened and ground for minimal wear and extended service life.
  • Optional spring ranges up to 350 bar (5000 psi).

Technical Data
  • Maximum operating pressure: 350 bar
  • Maximum flow: 60 l/min
  • Anti-cavitation cracking pressure: <0.5 bar
  • Maximum internal leakage: 5 cm3/min to 80% of nominal set point
  • Temperature range for O-ring and oil: -30°C to 110°C
  • Fluids: Mineral-based or synthetics with lubricating properties
  • Viscosities: 7.4 to 420 cSt
  • Filtration: 20/18/15 ISO 4406
  • Installation torque: 50-55 Nm (Hex. 22)
  • Weight: 0.117 kg

Performance and Specifications
  • Pressure settings are established at 5 l/min.
  • Reseat pressure is nominally 90% of cracking pressure.
  • Performance charts illustrate flow handling capacity for various spring bias options, with p/Q curves recorded at TOil = 40°C and 46 cSt.

Spring Options
  • Spring N: 51 - 90 bar
  • Spring B: 91 - 130 bar
  • Spring Y: 20 - 50 bar
  • Spring V: 206 - 275 bar
  • Spring W: 276 - 350 bar
  • Spring G: 131 - 205 bar
See more

Catalog excerpts

RVA0.M18-1

Relief Valves RVA0.M18 Valve Series Technical Data Maximum operating pressure Maximum flow Direct acting with anti-cavitation Setting Pressure Poppet Type 350 bar 60 l/min See table below Anti-cav cracking pressure Maximum internal leakage External component treatment O-ring Temperature Range Cross Section Oil Temperature Range Pressure settings established Reseat pressure Fluids The RVA valve combines in one compact cartridge the typical function of shock relief valve and anti-cavitation Orientation Installation torque through the built-in check valve. In the relief function when the pressure at the Inlet (1) reaches the valve Zn/Fe - standard (96h) Zn/Ni (720h) -30° C to 110° C (standard sealing NBR - BUNA-N) -30° C to 110° C @5 l/min nominal 90% of cracking pressure Mineral - based or synthetics with lubricating properties 7,4 to 420 cSt 20/18/15 ISO 4406 (maximum filtration admitted) No restrictions 50-55 Nm (Hex. 22) 5-10 Nm (Hex. 10) Technical specifications for characterization setting, the valve starts to open to tank (2) and thanks to the effect of the deflector integrated into the poppet it provides a limited pressure rise. The cartridge offers Plastic tamper proof cap Wire seals tamper proof excellent response to load changes in hydraulic circuits SK.101 CTP.001 (for more details see page 428-429) Suitable design upon request 0,117 kg requiring low internal leakage as well as limited hyseresis. Innovative design on internal dampening part gua- Ordering Code rantees great stability. In the free reverse flow function a light bias spring allows for ease of flow passage from side to nose (2 to 1) by lowering the internal seat. Technical Features All external surfaces are zinc plated and corrosion-proof. All valve parts are made of high strength steel. Poppet is hardened and ground to guarantee minimal wear and extended service life; internal seat is also ground and made of hard steel providing same advantages. Positive prevents ranges Specifications may change without notice.

 Open the catalog to page 1
RVA0.M18-2

Relief Valves RVA0.M18 Valve Series Springs’ Graphs Note: The performance chart illustrates flow handling capacity for each spring bias options. p/Q curves are recorded at TOil = 40°C and 46 cSt Flow (l/min) Flow (l/min) Flow (l/min) Flow (l/min) Flow (l/min) Anti-cavitation function p/Q performance Flow (l/min) Flow (l/min) Specifications may change without notice.

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.