SUN HYDRAULICS
DVBN8FN
$119.50 USD
Tags:
- SUN HYDRAULICS
- Material:DVBN8FN
- Model:DVBN-8FN
- 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 DVBN8FN (DVBN8FN) is a normally closed, 2-way directional cartridge valve featuring an integral pilot control cavity. This versatile valve can function independently or be used to actuate larger pilot-operated directional cartridges or logic elements. It operates by shifting when there is flow through the pilot control cartridge installed in the T8A cavity. The valve allows bidirectional flow between port 2 and port 3, with port 3 serving as a work port. Installation requires precise torque specifications: first for the main stage valve, then for the T8A pilot control section. Notably, this valve is not bistable but can modulate between its two positions, requiring a pressure source at port 1 relative to port 4 for operation. The DVBN8FN model incorporates Sun's floating style construction, which minimizes internal part binding due to excessive installation torque or machining variations in the cavity/cartridge. It has a capacity of 7 gpm (28 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). The control pilot flow ranges from 7 to 10 in\u00b3/min (0.11 to 0.16 L/min), while maximum valve leakage at 110 SUS (24 cSt) is rated at 2 in\u00b3/min at 1000 psi (30 cc/min at 70 bar). The valve features a T21A cavity and requires a hex size of 7/8 inch (22.2 mm) with an installation torque of 30-35 lbf ft (41-47 Nm). It weighs approximately .50 lb (0.25 kg), and Viton seal kits are available under part number 990021006.
The Sun Hydraulics DVBN8FN (DVBN8FN) is a normally closed, 2-way directional cartridge valve featuring an integral pilot control cavity. This versatile valve can function independently or be used to actuate larger pilot-operated directional cartridges or logic elements. It operates by shifting when there is flow through the pilot control cartridge installed in the T8A cavity. The valve allows bidirectional flow between port 2 and port 3, with port 3 serving as a work port. Installation requires precise torque specifications: first for the main stage valve, then for the T8A pilot control section. Notably, this valve is not bistable but can modulate between its two positions, requiring a pressure source at port 1 relative to port 4 for operation. The DVBN8FN model incorporates Sun's floating style construction, which minimizes internal part binding due to excessive installation torque or machining variations in the cavity/cartridge. It has a capacity of 7 gpm (28 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). The control pilot flow ranges from 7 to 10 in\u00b3/min (0.11 to 0.16 L/min), while maximum valve leakage at 110 SUS (24 cSt) is rated at 2 in\u00b3/min at 1000 psi (30 cc/min at 70 bar). The valve features a T21A cavity and requires a hex size of 7/8 inch (22.2 mm) with an installation torque of 30-35 lbf ft (41-47 Nm). It weighs approximately .50 lb (0.25 kg), and Viton seal kits are available under part number 990021006.
This valve is a normally closed, 2-way directional cartridge that incorporates an integral pilot control cavity. It may be used by itself or to actuate larger pilot-operated directional cartridges or logic elements. The valve shifts when there is flow through the pilot control cartridge installed in the T-8A cavity.
- Port 3 can be used as a work port.
- The flow path between port 2 and port 3 is bidirectional.
- NOTE: The main stage valve should first be installed to the correct torque value followed by the T-8A pilot control section into the main stage valve to its required torque value.
- This valve is not bistable; it is capable of modulating between the two positions shown.
- There must be a pressure source at port 1, relative to port 4, to shift the valve.
- The -8 control option allows the pilot control valve to be incorporated directly into the end of the directional cartridge via the T-8A cavity. These pilot control cartridges are sold separately and include solenoid operation, air pilot operation, and hydraulic pilot operation. See Pilot Control Cartridges.
- Leakage listed in technical data is for each path.
- 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. |
| 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) | 2 in³/min.@1000 psi30 cc/min.@70 bar |
| Pilot Control Cavity | T-8AT-8A |
| Valve Hex Size | 7/8 in.22,2 mm |
| Valve Installation Torque | 30 - 35 lbf ft41 - 47 Nm |
| Model Weight | .50 lb0,25 kg |
| Seal kit - Cartridge | Viton: 990-021-006 |
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