SUN HYDRAULICS
DKFCEHV
$166.79 USD
- SUN HYDRAULICS
- Material:DKFCEHV
- Model:DKFC-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 DKFCEHV (DKFCEHV) is a high-performance, normally closed hydraulic valve designed for advanced fluid power applications. This balanced poppet switching element operates with a pilot pressure at port 3, which shifts the valve to an open position when required. The valve boasts a robust construction that ensures reliable switching with maximum operating pressures up to 5000 psi (350 bar) at both ports 1 and 2, provided the external drain remains open. A minimum pilot pressure of 300 psi (20 bar) is necessary for effective operation. This model is engineered to offer exceptionally low leakage rates between port 1 and port 2, typically under 10 drops per minute at 5000 psi. It automatically reseats when pilot pressure drops below 145 psi (10 bar), enhancing system safety and efficiency. The DKFCEHV can be used interchangeably with unbalanced logic valves of the same frame size due to their identical cavity specifications (T2A Series 2), making it a versatile choice for replacements in existing systems. Sun Hydraulics has equipped the DKFCEHV with options for either external atmospheric vent control (X control) or static external drain control (E control). The X control version references atmospheric pressure and is suitable for troubleshooting in circuits originally using non-vented valves. For new installations or when moisture ingress and external leakage are concerns, the four-port configuration or an E control setup\u2014achieved by connecting the external vent port to a drain\u2014is recommended. This valve's balanced design minimizes internal friction and wear by ensuring equal hydraulic forces on opposing sides of the poppet. It supports up to 30 gpm (120 L/min) flow capacity and incorporates Sun\u2019s floating style construction which reduces risks associated with installation torque or cavity/cartridge machining discrepancies. With these features, the Sun Hydraulics DKFCEHV offers reliability and precision in various hydraulic system applications.
The Sun Hydraulics DKFCEHV (DKFCEHV) is a high-performance, normally closed hydraulic valve designed for advanced fluid power applications. This balanced poppet switching element operates with a pilot pressure at port 3, which shifts the valve to an open position when required. The valve boasts a robust construction that ensures reliable switching with maximum operating pressures up to 5000 psi (350 bar) at both ports 1 and 2, provided the external drain remains open. A minimum pilot pressure of 300 psi (20 bar) is necessary for effective operation. This model is engineered to offer exceptionally low leakage rates between port 1 and port 2, typically under 10 drops per minute at 5000 psi. It automatically reseats when pilot pressure drops below 145 psi (10 bar), enhancing system safety and efficiency. The DKFCEHV can be used interchangeably with unbalanced logic valves of the same frame size due to their identical cavity specifications (T2A Series 2), making it a versatile choice for replacements in existing systems. Sun Hydraulics has equipped the DKFCEHV with options for either external atmospheric vent control (X control) or static external drain control (E control). The X control version references atmospheric pressure and is suitable for troubleshooting in circuits originally using non-vented valves. For new installations or when moisture ingress and external leakage are concerns, the four-port configuration or an E control setup\u2014achieved by connecting the external vent port to a drain\u2014is recommended. This valve's balanced design minimizes internal friction and wear by ensuring equal hydraulic forces on opposing sides of the poppet. It supports up to 30 gpm (120 L/min) flow capacity and incorporates Sun\u2019s floating style construction which reduces risks associated with installation torque or cavity/cartridge machining discrepancies. With these features, the Sun Hydraulics DKFCEHV offers reliability and precision in various hydraulic system applications.
This is a normally closed, balanced poppet, switching element. Pilot pressure at port 3 shifts the valve to the open 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).
- 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 reseat when the pilot pressure falls below 145 psi (10 bar).
- These 3-port balanced logic valves use the same cavity as unbalanced logic valves of the same frame size and can be considered functional replacements.
- Available in external atmospheric vent (X control) or static external drain (E control) configurations.
- Three-port vented logic elements with the X control are atmospherically referenced and considered problem solvers for existing circuits using non-vented valves. Over time, these valves will eventually leak externally and/or allow moisture into the spring chamber. Four-port valves are recommended for new applications. Alternately, the external vent port can be connected to drain if the static drain port option (control option E) is selected. Removing the vent plug will convert an X control to an E control.
- These valves are hydraulically balanced between port 1 and port 2.
- 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 |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 5 drops/min.@1000 psi0,3 cc/min.@70 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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