SUN HYDRAULICS
DOFDEHV
$166.79 USD
- SUN HYDRAULICS
- Material:DOFDEHV
- Model:DOFD-EHV
- 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 DOFDEHV (DOFDEHV) is a normally open, balanced poppet switching element designed for precise hydraulic control. It features a unique balanced construction that allows predictable switching at high pressures, up to 5000 psi (350 bar) at ports 1 and 2, when the external vent port is open. The valve shifts to the closed position upon venting the external port, provided there is sufficient pressure at port 3. This model incorporates a floating style construction that minimizes internal binding due to excessive installation torque or machining variations. The valve's hydraulic balance between port 1 and port 2 ensures minimal leakage, typically less than 10 drops per minute at maximum pressure. The external SAE vent port can be directly connected to a pilot switching valve with low leakage rates and sufficient pilot flow capacity. The DOFDEHV requires a minimum pilot pressure of 300 psi (20 bar) to shift and will open when pilot pressure falls below 145 psi (10 bar). All ports are fully sealed from each other, enhancing operational reliability. Designed for use in applications requiring high-capacity flow, this valve supports up to 30 gpm (120 L/min). It fits into a T-2A cavity and requires an installation torque of 45-50 lbf ft (61-68 Nm). For maintenance or repair, Viton seal kits are available under part number 990202006. This versatile component is suitable for various hydraulic systems where precise control and reliable performance are critical.
The Sun Hydraulics DOFDEHV (DOFDEHV) is a normally open, balanced poppet switching element designed for precise hydraulic control. It features a unique balanced construction that allows predictable switching at high pressures, up to 5000 psi (350 bar) at ports 1 and 2, when the external vent port is open. The valve shifts to the closed position upon venting the external port, provided there is sufficient pressure at port 3. This model incorporates a floating style construction that minimizes internal binding due to excessive installation torque or machining variations. The valve's hydraulic balance between port 1 and port 2 ensures minimal leakage, typically less than 10 drops per minute at maximum pressure. The external SAE vent port can be directly connected to a pilot switching valve with low leakage rates and sufficient pilot flow capacity. The DOFDEHV requires a minimum pilot pressure of 300 psi (20 bar) to shift and will open when pilot pressure falls below 145 psi (10 bar). All ports are fully sealed from each other, enhancing operational reliability. Designed for use in applications requiring high-capacity flow, this valve supports up to 30 gpm (120 L/min). It fits into a T-2A cavity and requires an installation torque of 45-50 lbf ft (61-68 Nm). For maintenance or repair, Viton seal kits are available under part number 990202006. This versatile component is suitable for various hydraulic systems where precise control and reliable performance are critical.
This is a normally open, balanced poppet, switching element. When the external vent port is blocked, the poppet remains in the open position. Venting the external port shifts it to the closed position, provided there is sufficient pressure at port 3.
- Unique balanced construction provides predictable switching with 5000 psi (350 bar) at port 1 and port 2, with the external drain port open and a minimum pilot pressure of 300 psi (20 bar).
- The external -4 SAE vent port may be directly connected to a pilot switching valve. The pilot valve should have a leakage rate of less than 10 drops/min (0,7 cc/min). and be able to satisfy the pilot flow requirements. Sun model DAA*-*** solenoid pilot valve is ideal for this application.
- These valves are hydraulically balanced between port 1 and port 2.
- 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).
- Valve will open when the pilot pressure falls below 145 psi (10 bar).
- Port 1 and port 2 are fully sealed from port 3.
- 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-2A |
| 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 |
| Pilot Volume Displacement | .02 in³0,33 cc |
| Valve Hex Size | 1 1/8 in.28,6 mm |
| Valve Installation Torque | 45 - 50 lbf ft61 - 68 Nm |
| Seal kit - Cartridge | Viton: 990-202-006 |
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