Proporción de pilotaje 3:1 , venteado (a) contrabalance válvula

Cavity: T-21A | Capacity:

Modelo

CWCALHN

Control

Functional Setting Range

Seal Material

Material/Coating

Donde comprar

Technical Data

cavidad
T-21A
Series
1
Capacity
15 gpm
Pilot Ratio
3:1
Maximum Recommended Load Pressure at Maximum Setting
3075 psi
Maximum Setting
4000 psi
Adjustment - No. of CCW Turns from Min. to Max. Setting
5
Check Cracking Pressure
40 psi
Factory Pressure Settings Established at
2 in³/min.
Maximum Valve Leakage at Reseat
5 drops/min.
Operating Characteristic
estándar
Pilot Configuration
Sealed
Reseat
>85% of setting
Valve Hex Size
7/8 in.
Valve Installation Torque
30 - 35 lbf ft
Adjustment Screw Internal Hex Size
5/32 in.
Locknut Hex Size
9/16 in.
Locknut Torque
80 - 90 lbf in.
Model Weight
.45 lb
Seal kit - Cartridge
Buna: 990-021-007
Seal kit - Cartridge
Polyurethane: 990-021-002
Seal kit - Cartridge
Viton: 990-021-006
Seal kit - Cartridge
Buna: 990-021-007
Seal kit - Cartridge
Polyurethane: 990-021-002
Seal kit - Cartridge
Viton: 990-021-006

Curvas de desempeño

CAD Files

Model CAD Files

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Symbol CAD Files

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.dwg

.dxf

Preguntas frecuentes

Why is turning the adjust screw for counterbalance valves opposite of most other valves?
What parts of the Sun cartridge valve are field serviceable?
You say your valves leak 5 drops/min. How can I keep my load from drifting?
How do I determine the setting of a counterbalance valve?
How do I know how much pilot pressure is required to lower a load with a counterbalance valve?
When should I use a vented counterbalance valve?
How does Sun test a counterbalance valve for leakage?
How do I decide which pilot ratio to select?
How big is a drop of hydraulic oil?
Why can't I use a counterbalance valve in a closed loop transmission circuit?
What do you mean by the setting of a counterbalance valve and what should it be?
I don't need pilot assist. Can I just block port 3?
Can I use an atmospherically vented counterbalance valve instead of the four-port version to save on plumbing?
Why is it that your valves have pilot ratios below 10:1, while other manufacturers start at 7:1 and go up?
Why can't I block the pilot vent port? That area is positively sealed, isn't it?
Should I replace the counterbalance valve if my cylinder is drifting or moving?
I have a pilot-to-open check on a large cylinder and the decompression is violent. Can I use a counterbalance instead?
How do I size a counterbalance valve?
Can I adjust a counterbalance valve in the field?
Why do you offer 2 check valve cracking pressures?
What happens to the counterbalance valve if I have backpressure in my system?
What do you mean by hysteresis when referring to a counterbalance valve?