SUN HYDRAULICS
DPBACKN
$106.93 USD
- SUN HYDRAULICS
- Material:DPBACKN
- Model:DPBA-CKN
- Summary:Cartridge
Quantity in stock: 0
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics DPBACKN (DPBACKN) is a normally open, pilot-operated, 2-way directional cartridge valve designed for moderate flow circuits. It can operate independently or be used to actuate larger pilot-operated directional or logic cartridges. The valve shifts when the pressure differential between port 1 and port 3 exceeds its setting, with pressure at port 3 being directly additive to the valve setting. This design consideration means port 3 may not be suitable as a work port in certain circuits; however, a four-port version of this valve may address such needs. Both direct-acting and pilot-operated versions are interchangeable, fitting the same cavities and maintaining identical flow paths. This model is not bistable and can modulate between two positions. The DPBACKN features a maximum operating pressure of 5000 psi (350 bar) and is limited to a maximum pressure of 3000 psi (210 bar) at port 3 due to fatigue strength limits. It incorporates Sun's floating style construction to minimize internal binding risks due to installation torque or cavity machining variations. The valve has a capacity of 7 gpm (28 L/min), with factory pressure settings established at 4 gpm (15 L/min). Control pilot flow ranges from 7\u201310 in\u00b3/min (0.11\u20130.16 L/min), with maximum leakage at 1 in\u00b3/min/1000 psi (15 cc/min/70 bar). The adjustment requires up to five clockwise turns to increase settings, and it includes specific hex sizes for installation torque adjustments: Valve Hex Size is 7/8 in. (22.2 mm), Adjustment Screw Internal Hex Size is 5/32 in. (4 mm), Locknut Hex Size is 9/16 in. (15 mm), with locknut torque set between 80\u201390 lbf\u00b7in (9\u201310 Nm). The model weighs approximately .60 lb (.30 kg) and uses Viton seal kits for optimal performance.
The Sun Hydraulics DPBACKN (DPBACKN) is a normally open, pilot-operated, 2-way directional cartridge valve designed for moderate flow circuits. It can operate independently or be used to actuate larger pilot-operated directional or logic cartridges. The valve shifts when the pressure differential between port 1 and port 3 exceeds its setting, with pressure at port 3 being directly additive to the valve setting. This design consideration means port 3 may not be suitable as a work port in certain circuits; however, a four-port version of this valve may address such needs. Both direct-acting and pilot-operated versions are interchangeable, fitting the same cavities and maintaining identical flow paths. This model is not bistable and can modulate between two positions. The DPBACKN features a maximum operating pressure of 5000 psi (350 bar) and is limited to a maximum pressure of 3000 psi (210 bar) at port 3 due to fatigue strength limits. It incorporates Sun's floating style construction to minimize internal binding risks due to installation torque or cavity machining variations. The valve has a capacity of 7 gpm (28 L/min), with factory pressure settings established at 4 gpm (15 L/min). Control pilot flow ranges from 7\u201310 in\u00b3/min (0.11\u20130.16 L/min), with maximum leakage at 1 in\u00b3/min/1000 psi (15 cc/min/70 bar). The adjustment requires up to five clockwise turns to increase settings, and it includes specific hex sizes for installation torque adjustments: Valve Hex Size is 7/8 in. (22.2 mm), Adjustment Screw Internal Hex Size is 5/32 in. (4 mm), Locknut Hex Size is 9/16 in. (15 mm), with locknut torque set between 80\u201390 lbf\u00b7in (9\u201310 Nm). The model weighs approximately .60 lb (.30 kg) and uses Viton seal kits for optimal performance.
Normally open, pilot-operated, 2-way directional cartridges are switching devices typically used in moderate flow circuits. They can be used by themselves or to actuate larger pilot-operated directional cartridges or logic cartridges. The valve shifts when the pressure differential between port 1 and port 3 exceeds the setting.
- Pressure at port 3 is directly additive to the setting of the valve. Because of this, port 3 may not be useable as a work port in your circuit. If this is a consideration, the 4 port version of this valve may be a solution.
- Direct-acting and pilot-operated versions of these valves are interchangeable. They fit the same cavities and have the same flow paths.
- This valve is not bistable; it is capable of modulating between the two positions shown.
- Maximum pressure at port 3 should be limited to 3000 psi (210 bar). This is due to fatigue strength limits not hydraulic operating limits.
- When pilot pressure exceeds the valve setting, pilot flow may be a consideration. See performance curves for pilot consumption vs. load pressure above the valve setting. If this is a problem, the direct acting version of this valve would be a solution.
- 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.
| Cavity | T-11A |
| Series | 1 |
| Capacity | 7 gpm28 L/min. |
| Factory Pressure Settings Established at | 4 gpm15 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Control Pilot Flow | 7 - 10 in³/min.0,11 - 0,16 L/min. |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 1 in³/min.@1000 psi15 cc/min.@70 bar |
| Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
| Valve Hex Size | 7/8 in.22,2 mm |
| Valve Installation Torque | 30 - 35 lbf ft41 - 47 Nm |
| Adjustment Screw Internal Hex Size | 5/32 in.4 mm |
| Locknut Hex Size | 9/16 in.15 mm |
| Locknut Torque | 80 - 90 lbf in.9 - 10 Nm |
| Model Weight | .60 lb0,30 kg |
| Seal kit - Cartridge | Viton: 990-011-006 |
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