Hydraforce RV08-20A-0-N-18 Pressure Controls, Relief Valve, Direct Acting, Poppet Type

Hydraforce RV08-20A-0-N-18 Pressure Controls, Relief Valve, Direct Acting, Poppet Type

SKU: RV08-20A-0-N-18

Hydraforce Part Number: RV08-20A-0-N-18

Seal Kit: SK08-2X-B (X=seal option)

RV08-20X is a screw in, cartridge style, direct acting, poppet type, hydraulic relief valve intended for lower flow circuits requiring low internal leakage.

RV08-20X blocks flow from port 1 to port 2 until sufficient pressure is present at port 1 to force the spring opposed poppet off its seat.

• Adjustments cannot be backed out of the valve.
• Variety of pressure adjustment options including non-adjustable factory preset.
• Adjustments options A, B, and C: positive stops prevent springs from going solid.
• Optional spring ranges to 248 bar (3600 psi).
• Rapid response to pressure changes.
• Optional bi-directional pressure (requires bi-directional pressure seal option).
• Compact size.

RVD58-20 Is our best-in-class relief valve and can functionally replace this valve in most applications. We strongly encourage you to consider this newer alternative.

Considerations:

• Comparable pressure and flow ratings
• Comparable response rate
• Better pressure rise characteristics
• Smaller size
• No dynamic seal
• Competitive cost
• VC08-2B cavity variation is required. Some manifolds may allow drop-in replacement.
• Assistance is available to evaluate your application

Specifications

Pressure rating:

• 275.8 bar (4000 psi)
• 482.6 bar (7000 psi)

Burst pressure:

• 896.3 bar (13000 psi)

Relief pressure defined:

• Pressure evident at
• 0.95 lpm (0.25 gpm)

Reseat pressure:

• Nominal 80% of crack

Flow rating:

• 22.7 lpm (6 gpm) At max pressure

Maximum internal leakage:

• 0.25 ml/min (5 drops/min) Max to 75% 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 urethane seals with polyurethane seals

Storage temperature:

• -40 to 70 °C (-40 to 160 °F)

Ambient temperature:

• -40 to 70 °C (-40 to 160 °F)

Cavity:

• VC08-2
• 08-size-2-way Cavities

Cartridge installation torque:

• 25.8 to 28.5 N-m (19 to 21 ft-lb)

Maximum allowable torque:

• 40.7 N-m (30 ft-lb)

H style plug torque:

• 10.8 to 13.6 N-m (8 to 10 ft-lb) N V P U
• 34 N-m (25 ft-lb) NC VC PC max

Orientation restriction:

• None