SUN HYDRAULICS
DOFRXHN
$158.95 USD
- SUN HYDRAULICS
- Material:DOFRXHN
- Model:DOFR-XHN
- 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 DOFRXHN (Material Number: DOFRXHN) is a normally open, balanced poppet, switching element designed for efficient hydraulic control. This component remains open when the vent port (port 4) is blocked and shifts to a closed position when the vent is released, assuming adequate pressure at port 3. It features a unique balanced construction that ensures predictable switching even at high pressures of up to 5000 psi (350 bar) at both ports 1 and 2, with a minimum pilot pressure requirement of 400 psi (30 bar) at port 3. The valve will open if pilot pressure decreases below 145 psi (10 bar). The DOFRXHN valve is hydraulically balanced between ports 1 and 2, which are fully sealed from ports 3 and 4. It boasts an impressively low leakage rate between ports 1 and 2, typically less than 10 drops per minute at maximum operating pressure. Port 4 can be externally connected to a pilot switching valve with minimal leakage requirements, making it ideal for integration with Sun's DAA solenoid pilot valve. This model incorporates Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations in the cavity or cartridge. It fits into cavity T22A and belongs to Series 2 with a capacity of handling up to 30 gpm (120 L/min). The valve requires an installation torque of between 45-50 lbf ft (61-68 Nm) and weighs approximately .65 lb (.30 kg). For maintenance, it utilizes a Viton seal kit under cartridge number 990022006.
The Sun Hydraulics DOFRXHN (Material Number: DOFRXHN) is a normally open, balanced poppet, switching element designed for efficient hydraulic control. This component remains open when the vent port (port 4) is blocked and shifts to a closed position when the vent is released, assuming adequate pressure at port 3. It features a unique balanced construction that ensures predictable switching even at high pressures of up to 5000 psi (350 bar) at both ports 1 and 2, with a minimum pilot pressure requirement of 400 psi (30 bar) at port 3. The valve will open if pilot pressure decreases below 145 psi (10 bar). The DOFRXHN valve is hydraulically balanced between ports 1 and 2, which are fully sealed from ports 3 and 4. It boasts an impressively low leakage rate between ports 1 and 2, typically less than 10 drops per minute at maximum operating pressure. Port 4 can be externally connected to a pilot switching valve with minimal leakage requirements, making it ideal for integration with Sun's DAA solenoid pilot valve. This model incorporates Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations in the cavity or cartridge. It fits into cavity T22A and belongs to Series 2 with a capacity of handling up to 30 gpm (120 L/min). The valve requires an installation torque of between 45-50 lbf ft (61-68 Nm) and weighs approximately .65 lb (.30 kg). For maintenance, it utilizes a Viton seal kit under cartridge number 990022006.
This is a normally open, balanced poppet, switching element. When the vent port (port 4) is blocked, the poppet remains in the open position. Venting port 4 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 both ports 1 and 2, with the vent (port 4) open and a minimum pilot pressure of 400 psi (30 bar) at port 3.
- 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).
- Port 4 may be externally connected to a pilot switching valve. The pilot valve should have a leakage rate of less than 10 drops/min. and be able to satisfy the pilot flow requirements. Sun model DAA*-*** solenoid pilot valve is ideal for this application.
- 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 |
| Model Weight | .65 lb0,30 kg |
| Seal kit - Cartridge | Viton: 990-022-006 |
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