Hydraforce RV12-26A-0-N-35 Pressure Controls, Relief Valve, Piloted, Spool Type

Hydraforce RV12-26A-0-N-35 Pressure Controls – Relief Valve – Piloted – Spool Type

SKU: RV12-26A-0-N-35

Hydraforce Part Number: RV12-26A-0-N-35

Seal Kit: SK12-2X-B, X = seal option

RV12-26X is a screw in, cartridge style, pilot operated (two stage), spool type relief valve, intended for use as a pressure limiting device in demanding hydraulic circuits which require fast response and low hysteresis.

The RV12-26X blocks flow from port 1 to port 2 until sufficient pressure is present at port 1 to force the pilot relief off its seat, allowing the main stage to shift, opening port 1 to port 2.

Note: this valve cannot be used in cross-over relief applications.

• Adjustments cannot be backed out of the valve.
• Adjustments prohibit springs from going solid.
• Hardened spool and cage for long life.
• Optional spring ranges to 240 bar (3500 psi).
• Rapid, smooth response to pressure surges.
• Cost-effective cavity.

Specification

Pressure rating:

• 241.3 bar (3500 psi) Port 1
• 103.4 bar (1500 psi) Port 2

Proof pressure:

• 689.5 bar (10000 psi)

Burst pressure:

• 1379.0 bar (20000 psi)

Crack pressure defined:

• Pressure evident at 7.6 lpm (2 gpm)

Flow rating:

• 170.3 lpm (45 gpm) At max pressure

Maximum internal leakage:

• 197 ml/min (12 in³/min) At port 2 at 85% of nominal setting

Operating fluid temperature:

• -40 to 100 °C (-40 to 212 °F) With buna N seals
• -26 to 204 °C (-15 to 400 °F) With fluorocarbon seals
• -54 to 107 °C (-65 to 225 °F) With polyurethane seals

Storage temperature:

• -40 to 70 °C (-40 to 160 °F)

Ambient temperature:

• -40 to 70 °C (-40 to 160 °F)

Corrosion protection:

• 960 hr salt spray per ASTM b117 (grv12-26x)

Fluids:

• Mineral based or synthetic with lubricating properties

Fluid viscosity range:

• 4 to 420 cSt

Maximum operating contamination level:

• 18/16/13 per ISO 4406

Cavity:

• VC12-2
• 12-size-2-way Cavities

Cartridge installation torque:

• 44.7 to 50.2 N-m (33 to 37 ft-lb)
• 33.9 to 35.3 N-m (25 to 26 ft-lb) H-style plug

Orientation restriction:

None