SUN Counterbalance valve 70-280bar 10 lpm T-11A

3:1 pilot ratio, restrictive counterbalance valve

Counterbalance valves with pilot assist are meant to control an overrunning load. The check valve allows free flow from the directional valve (port 2) to the load (port 1) while a direct-acting, pilot-assisted relief valve controls flow from port 1 to port 2. Pilot assist at port 3 lowers the effective setting of the relief valve at a rate determined by the pilot ratio. Other names for this valve include motion control valve and over-center valve.

  • Counterbalance valves should be set at least 1.3 times the maximum load induced pressure.
  • Restrictive valves have no relief capacity other than as a thermal relief.
  • Turn adjustment clockwise to decrease setting and release load.
  • Full clockwise setting is less than 14 bar.
  • Backpressure at port 2 adds to the effective relief setting at a ratio of 1 plus the pilot ratio times the backpressure.
  • Reseat exceeds 85% of set pressure when the valve is standard set. Settings lower than the standard set pressure may result in lower reseat percentages.
  • Sun counterbalance cartridges can be installed directly into a cavity machined in an actuator housing for added protection and improved stiffness in the circuit.
  • Two check valve cracking pressures are available. Use the 1,7 bar check unless actuator cavitation is a concern.
  • This valve has positive seals between all ports.
  • All 3-port counterbalance, load control, and pilot-to-open check cartridges are physically interchangeable (i.e. same flow path, same cavity for a given frame size).
  • 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.

Artikelnummer:
CBBA-LHN

Förpackningsstorlek:
0 pcs

Minsta beställningskvantitet:
1 pcs
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Brand Name
Sun Hydraulics

Cavity
T-11A

Contamination level max.
19/17/14 - ISO 4406

Flow rate nominal LMin
20 lpm

Material
Steel

Oil viscocity recommended
2,8 - 380 cSt

Pilot ratio
3:1

Pressure max.
350 bar

Pressure setting max.
280 bar

Pressure setting min.
70 bar

Sealing material
NBR

Temperature max.
+110 °C

Temperature min.
-30 °C

Torque tightening
41 - 47 Nm
Förpackningsstorlek
0 pcs

Streckkod
5704295392752

Bruttovikt
0,17 Kg

Nettovikt
0,17 Kg

Ursprungsland

Intrastat artikelkod
84812010

3:1 pilot ratio, restrictive counterbalance valve

Counterbalance valves with pilot assist are meant to control an overrunning load. The check valve allows free flow from the directional valve (port 2) to the load (port 1) while a direct-acting, pilot-assisted relief valve controls flow from port 1 to port 2. Pilot assist at port 3 lowers the effective setting of the relief valve at a rate determined by the pilot ratio. Other names for this valve include motion control valve and over-center valve.

  • Counterbalance valves should be set at least 1.3 times the maximum load induced pressure.
  • Restrictive valves have no relief capacity other than as a thermal relief.
  • Turn adjustment clockwise to decrease setting and release load.
  • Full clockwise setting is less than 14 bar.
  • Backpressure at port 2 adds to the effective relief setting at a ratio of 1 plus the pilot ratio times the backpressure.
  • Reseat exceeds 85% of set pressure when the valve is standard set. Settings lower than the standard set pressure may result in lower reseat percentages.
  • Sun counterbalance cartridges can be installed directly into a cavity machined in an actuator housing for added protection and improved stiffness in the circuit.
  • Two check valve cracking pressures are available. Use the 1,7 bar check unless actuator cavitation is a concern.
  • This valve has positive seals between all ports.
  • All 3-port counterbalance, load control, and pilot-to-open check cartridges are physically interchangeable (i.e. same flow path, same cavity for a given frame size).
  • 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.

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