SUN HYDRAULICS
DPBOLBV
$144.06 USD
- SUN HYDRAULICS
- Material:DPBOLBV
- Model:DPBO-LBV
- 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 DPBOLBV (DPBOLBV) is a pilot-operated, 3-way directional cartridge valve designed for moderate flow circuits. This versatile valve can function independently or be used to actuate larger pilot-operated or logic cartridges. It features a unique design where the valve shifts when the pressure differential between port 1 and port 4 exceeds the set threshold, with port 4 capable of being blocked to prevent shifting. Port 3 serves as a work port, and the valve's direct-acting and pilot-operated versions are interchangeable, fitting the same cavities with identical flow paths. This model is not bistable and can modulate between two positions. The DPBOLBV has a maximum operating pressure of 5000 psi (350 bar) and should limit pressure at port 3 to 3000 psi (210 bar) due to fatigue strength limits. It incorporates Sun's floating style construction, minimizing internal binding risks from excessive installation torque or machining variations. The valve's capacity is rated at 7 gpm (28 L/min), with factory pressure settings established at 4 gpm (15 L/min). Control pilot flow ranges from 7 to 10 in\u00b3/min (0.11 to 0.16 L/min), and maximum leakage is limited to 1 in\u00b3/min at 1000 psi (15 cc/min at 70 bar). Installation requires specific torque values: the valve hex size is ^7\u20448 in. (22.2 mm), with an installation torque of 30-35 lbf\u00b7ft (41-47 Nm). The adjustment screw features an internal hex size of ^5\u204432 in. (4 mm), while the locknut hex size is ^9\u204416 in. (15 mm), requiring a torque of 80-90 lbf\u00b7in. (9-10 Nm). The model weighs approximately .60 lb (.30 kg) and uses Viton seal kits for optimal performance.
The Sun Hydraulics DPBOLBV (DPBOLBV) is a pilot-operated, 3-way directional cartridge valve designed for moderate flow circuits. This versatile valve can function independently or be used to actuate larger pilot-operated or logic cartridges. It features a unique design where the valve shifts when the pressure differential between port 1 and port 4 exceeds the set threshold, with port 4 capable of being blocked to prevent shifting. Port 3 serves as a work port, and the valve's direct-acting and pilot-operated versions are interchangeable, fitting the same cavities with identical flow paths. This model is not bistable and can modulate between two positions. The DPBOLBV has a maximum operating pressure of 5000 psi (350 bar) and should limit pressure at port 3 to 3000 psi (210 bar) due to fatigue strength limits. It incorporates Sun's floating style construction, minimizing internal binding risks from excessive installation torque or machining variations. The valve's capacity is rated at 7 gpm (28 L/min), with factory pressure settings established at 4 gpm (15 L/min). Control pilot flow ranges from 7 to 10 in\u00b3/min (0.11 to 0.16 L/min), and maximum leakage is limited to 1 in\u00b3/min at 1000 psi (15 cc/min at 70 bar). Installation requires specific torque values: the valve hex size is ^7\u20448 in. (22.2 mm), with an installation torque of 30-35 lbf\u00b7ft (41-47 Nm). The adjustment screw features an internal hex size of ^5\u204432 in. (4 mm), while the locknut hex size is ^9\u204416 in. (15 mm), requiring a torque of 80-90 lbf\u00b7in. (9-10 Nm). The model weighs approximately .60 lb (.30 kg) and uses Viton seal kits for optimal performance.
Pilot-operated, 3-way directional cartridges (1 blocked, 2 to 3 open) 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 4 exceeds the setting.
- Port 4 can be blocked to prevent the valve from shifting.
- Port 3 can be used as a work port.
- Direct-acting and pilot-operated versions of these valves are interchangeable. They fit the same cavities and have the same flow paths.
- Pressure at port 4 is directly additive to the setting of the valve.
- 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-21A |
| 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: 990-021-006 |
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