SUN HYDRAULICS
DOFPLWN
$177.01 USD
- SUN HYDRAULICS
- Material:DOFPLWN
- Model:DOFP-LWN
- 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 DOFPLWN (DOFPLWN) is a normally open, balanced poppet switching element designed for high-pressure hydraulic systems. This component operates by maintaining an open position until pilot pressure at port 3 reaches the pre-set limit established by the integral pilot relief stage, at which point it transitions to a closed position. Its unique balanced construction ensures predictable switching performance, capable of handling pressures up to 5000 psi (350 bar) at both port 1 and port 2. The valve will reopen when pilot pressure drops below 145 psi (10 bar). This hydraulically balanced valve features ports that are fully sealed from each other, with an exceptionally low leakage rate between port 1 and port 2, typically less than 10 drops per minute at maximum pressure. All ports can withstand up to 5000 psi (350 bar), making it suitable for demanding applications where reliability under high pressure is critical. The Sun floating style construction minimizes the risk of internal part binding due to excessive installation torque or machining variations in cavity/cartridge interfaces. The DOFPLWN fits into a T22A cavity and belongs to Series 2 with a flow capacity of up to 30 gpm (120 L/min). It requires a minimum pilot pressure of 300 psi (20 bar) to shift the valve, and its installation torque ranges between 45 and 50 lbf ft (61 to 68 Nm). The adjustment screw has an internal hex size of 5/32 in. (4 mm), while the locknut hex size is 9/16 in. (15 mm) with a locknut torque specification of 80 to 90 lbf in. (9 to 10 Nm). For sealing purposes, Viton seal kits are available under cartridge part number: Viton: #990022006.
The Sun Hydraulics DOFPLWN (DOFPLWN) is a normally open, balanced poppet switching element designed for high-pressure hydraulic systems. This component operates by maintaining an open position until pilot pressure at port 3 reaches the pre-set limit established by the integral pilot relief stage, at which point it transitions to a closed position. Its unique balanced construction ensures predictable switching performance, capable of handling pressures up to 5000 psi (350 bar) at both port 1 and port 2. The valve will reopen when pilot pressure drops below 145 psi (10 bar). This hydraulically balanced valve features ports that are fully sealed from each other, with an exceptionally low leakage rate between port 1 and port 2, typically less than 10 drops per minute at maximum pressure. All ports can withstand up to 5000 psi (350 bar), making it suitable for demanding applications where reliability under high pressure is critical. The Sun floating style construction minimizes the risk of internal part binding due to excessive installation torque or machining variations in cavity/cartridge interfaces. The DOFPLWN fits into a T22A cavity and belongs to Series 2 with a flow capacity of up to 30 gpm (120 L/min). It requires a minimum pilot pressure of 300 psi (20 bar) to shift the valve, and its installation torque ranges between 45 and 50 lbf ft (61 to 68 Nm). The adjustment screw has an internal hex size of 5/32 in. (4 mm), while the locknut hex size is 9/16 in. (15 mm) with a locknut torque specification of 80 to 90 lbf in. (9 to 10 Nm). For sealing purposes, Viton seal kits are available under cartridge part number: Viton: #990022006.
This is a normally open, balanced poppet, switching element. When pilot pressure is applied to port 3, the poppet remains open until the pilot pressure reaches the setting established by the integral pilot relief stage, at which point the poppet shifts to the closed position.
- Unique balanced construction provides predictable switching with 5000 psi (350 bar) at both port 1 and port 2. When the remote pressure signal at port 3 exceeds the internal valve setting, the valve shifts to the closed position.
- Any backpressure at the drain port is directly additive to the valve setting.
- Valve will open when the pilot pressure falls below 145 psi (10 bar).
- These valves are hydraulically balanced between port 1 and port 2.
- Port 1 and port 2 are fully sealed from port 3 and port 4. Ports 3 and 4 are positively sealed.
- Leakage rate between port 1 and port 2 is very low, typically less than 10 drops/min. at 5000 psi (0,7 cc/min at 350 bar).
- All ports will accept 5000 psi (350 bar).
- 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-22A |
| Series | 2 |
| Capacity | 30 gpm120 L/min. |
| Minimum Pilot Pressure Required to Shift Valve | 300 psi20 bar |
| Maximum Operating Pressure | 5000 psi350 bar |
| Control Pilot Flow | See Performance DataSee Performance Data |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 10 drops/min.@5000 psi0,7 cc/min.@350 bar |
| Valve Hex Size | 1 1/8 in.28,6 mm |
| Valve Installation Torque | 45 - 50 lbf ft61 - 68 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 |
| Seal kit - Cartridge | Viton: 990-022-006 |
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