SUN HYDRAULICS
NFFDKIN
$227.45 USD
- SUN HYDRAULICS
- Material:NFFDKIN
- Model:NFFD-KIN
- 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 NFFDKIN (NFFDKIN) is a versatile needle valve designed for precise flow regulation in hydraulic systems. This fully adjustable orifice can be set from fully closed to the maximum orifice diameter, allowing it to function effectively as a flow control or shutoff valve. Although not pressure compensated, it provides reliable performance by regulating flow based on the square root of the pressure differential across its ports. The valve features a balanced adjustment mechanism for easy handling even at high pressures and a sharp-edged orifice design that minimizes flow variations due to changes in fluid viscosity. It is bidirectional, with a preferred flow path from port 1 to port 2, ensuring compatibility with other flow control devices. This needle valve fits into the T-18A cavity and belongs to Series 4, offering a capacity of 140 gpm (530 L/min) at a maximum operating pressure of 5000 psi (350 bar). The adjustment mechanism allows up to 5.5 counterclockwise turns from fully closed to fully open, providing fine-tuned control over hydraulic fluid movement. The valve requires specific installation torque values and features an internal hex adjustment screw and locknut for secure positioning. Weighing in at approximately 3 pounds (1.35 kg), it is compatible with systems using phosphate ester fluids when equipped with EPDM seals; however, these seals are susceptible to damage if exposed to petroleum-based fluids. Engineered for durability and efficiency, the Sun Hydraulics NFFDKIN needle valve is ideal for applications requiring precise flow adjustments without leakage when closed. Its robust construction and thoughtful design make it suitable for various hydraulic configurations where reliable performance is critical.
The Sun Hydraulics NFFDKIN (NFFDKIN) is a versatile needle valve designed for precise flow regulation in hydraulic systems. This fully adjustable orifice can be set from fully closed to the maximum orifice diameter, allowing it to function effectively as a flow control or shutoff valve. Although not pressure compensated, it provides reliable performance by regulating flow based on the square root of the pressure differential across its ports. The valve features a balanced adjustment mechanism for easy handling even at high pressures and a sharp-edged orifice design that minimizes flow variations due to changes in fluid viscosity. It is bidirectional, with a preferred flow path from port 1 to port 2, ensuring compatibility with other flow control devices. This needle valve fits into the T-18A cavity and belongs to Series 4, offering a capacity of 140 gpm (530 L/min) at a maximum operating pressure of 5000 psi (350 bar). The adjustment mechanism allows up to 5.5 counterclockwise turns from fully closed to fully open, providing fine-tuned control over hydraulic fluid movement. The valve requires specific installation torque values and features an internal hex adjustment screw and locknut for secure positioning. Weighing in at approximately 3 pounds (1.35 kg), it is compatible with systems using phosphate ester fluids when equipped with EPDM seals; however, these seals are susceptible to damage if exposed to petroleum-based fluids. Engineered for durability and efficiency, the Sun Hydraulics NFFDKIN needle valve is ideal for applications requiring precise flow adjustments without leakage when closed. Its robust construction and thoughtful design make it suitable for various hydraulic configurations where reliable performance is critical.
Needle valves are fully adjustable orifices used to regulate flow. They are infinitely adjustable from fully closed up to the maximum orifice diameter. They are not pressure compensated and may be used as flow controls or as shutoff valves.
- All 2-port flow control cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size). However, cartridge extension dimensions from the mounting surface may vary.
- Because needle valves are non-compensating devices, the fixed orifice size will regulate flow through the valve in proportion to the square root of the pressure differential across ports 1 and 2.
- A balanced adjustment mechanism allows for easy adjustment even at high pressures.
- The sharp-edged orifice design minimizes flow variations due to viscosity changes.
- The flow path through this valve is bi-directional. The preferred path is port 1 to 2, to allow interchangeability with other flow controls.
- There is no leakage when the adjustment mechanism is turned to the shut-off position.
- Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
| Cavity | T-18A |
| Series | 4 |
| Capacity | 140 gpm (.85 inch)530 L/min. (21,6 mm) |
| Maximum Operating Pressure | 5000 psi350 bar |
| Adjustment - Number of Counterclockwise Turns - Fully Closed to Fully Open | 55 |
| Valve Hex Size | 1 5/8 in.41,3 mm |
| Valve Installation Torque | 350 - 375 lbf ft474 - 508 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 |
| Model Weight | 3.00 lb1,35 kg |
| Seal kit - Cartridge | Viton: 990-018-006 |
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- Performance Data
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- Cavity Information (S-171) and Tooling