SUN HYDRAULICS
DOFSXHE
$546.44 USD
- SUN HYDRAULICS
- Material:DOFSXHE
- Model:DOFS-XHE
- 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 DOFSXHE (DOFSXHE) is a normally open, balanced poppet switching element designed for high-pressure hydraulic systems. This valve operates by using pilot pressure at port 3 to shift the valve to a closed position, with a unique balanced construction that ensures predictable switching at pressures up to 5000 psi (350 bar) at both ports 1 and 2. The valve requires a minimum pilot pressure of 300 psi (20 bar) for reliable operation, and any backpressure at the drain port adds directly to this requirement. Ports 1 and 2 are fully sealed from ports 3 and 4, ensuring positive sealing in demanding applications. The DOFSXHE features a low leakage rate between port 1 and port 2, typically less than 10 drops per minute at maximum pressure, making it ideal for applications requiring minimal fluid loss. The valve opens when pilot pressure falls below 145 psi (10 bar), allowing for efficient system control. It incorporates Sun's floating style construction to minimize the risk of internal parts binding due to installation torque or machining variations. This cartridge fits into a T-22A cavity and belongs to Series 2 with a flow capacity of up to 30 gpm (120 L/min). It is compatible with systems using phosphate ester fluids when equipped with EPDM seals, which should not be exposed to petroleum-based substances. The valve's hex size is 1-1/8 inches (28.6 mm), and it requires an installation torque of between 45 and 50 lbf ft (61-68 Nm). Overall, the Sun Hydraulics DOFSXHE is a robust component suitable for precise hydraulic system control in high-pressure environments.
The Sun Hydraulics DOFSXHE (DOFSXHE) is a normally open, balanced poppet switching element designed for high-pressure hydraulic systems. This valve operates by using pilot pressure at port 3 to shift the valve to a closed position, with a unique balanced construction that ensures predictable switching at pressures up to 5000 psi (350 bar) at both ports 1 and 2. The valve requires a minimum pilot pressure of 300 psi (20 bar) for reliable operation, and any backpressure at the drain port adds directly to this requirement. Ports 1 and 2 are fully sealed from ports 3 and 4, ensuring positive sealing in demanding applications. The DOFSXHE features a low leakage rate between port 1 and port 2, typically less than 10 drops per minute at maximum pressure, making it ideal for applications requiring minimal fluid loss. The valve opens when pilot pressure falls below 145 psi (10 bar), allowing for efficient system control. It incorporates Sun's floating style construction to minimize the risk of internal parts binding due to installation torque or machining variations. This cartridge fits into a T-22A cavity and belongs to Series 2 with a flow capacity of up to 30 gpm (120 L/min). It is compatible with systems using phosphate ester fluids when equipped with EPDM seals, which should not be exposed to petroleum-based substances. The valve's hex size is 1-1/8 inches (28.6 mm), and it requires an installation torque of between 45 and 50 lbf ft (61-68 Nm). Overall, the Sun Hydraulics DOFSXHE is a robust component suitable for precise hydraulic system control in high-pressure environments.
This is a normally open, balanced poppet, switching element. Pilot pressure at port 3 shifts the valve to the closed position.
- Unique balanced construction provides predictable switching with 5000 psi (350 bar) at both ports 1 and 2, with the external drain open and a minimum pilot pressure of 300 psi (20 bar).
- Port 1 and port 2 are fully sealed from port 3 and port 4. Ports 3 and 4 are positively sealed.
- Any backpressure at the drain port is directly additive to the required pilot pressure for reliable operation.
- 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).
- Cartridges with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
- These valves are hydraulically balanced between port 1 and port 2.
- 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 |
| 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: 990-022-006 |
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