SUN HYDRAULICS
NFFCKHV
$217.72 USD
- SUN HYDRAULICS
- Material:NFFCKHV
- Model:NFFC-KHV
- 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 NFFCKHV (Material Number: NFFCKHV) is a precision-engineered needle valve designed for regulating flow in hydraulic systems. This fully adjustable orifice provides infinite control from a fully closed position to the maximum orifice diameter, allowing it to function effectively as either a flow control or shutoff valve. Notably, the NFFCKHV model is not pressure compensated, meaning that the flow regulation is directly proportional to the square root of the pressure differential across its two ports. The balanced adjustment mechanism ensures easy manipulation even under high-pressure conditions, while its sharp-edged orifice design minimizes variations due to changes in fluid viscosity. This bidirectional valve is optimized for a preferred flow path from port 1 to port 2, ensuring compatibility with other flow controls and maintaining zero leakage when fully shut off. The cartridge's extension dimensions may vary despite physical and functional interchangeability across 2-port flow control cartridges of similar frame sizes. It features EPDM seals suitable for systems utilizing phosphate ester fluids but is incompatible with petroleum-based substances. The Sun Hydraulics NFFCKHV accommodates a cavity T-18A Series 4 and has a capacity of 60 gpm (240 L/min) with a maximum operating pressure of 5000 psi (350 bar). The valve requires an installation torque between 350 to 375 lbf-ft (474 to 508 Nm), and its adjustment screw internal hex size measures at 5/32 inches (4 mm). With a locknut torque requirement of 80 to 90 lbf-in (9 to 10 Nm), this model weighs approximately 3 pounds (1.35 kg). For maintenance, Viton seal kits are available under cartridge number 990018006, ensuring continued reliable performance in demanding applications.
The Sun Hydraulics NFFCKHV (Material Number: NFFCKHV) is a precision-engineered needle valve designed for regulating flow in hydraulic systems. This fully adjustable orifice provides infinite control from a fully closed position to the maximum orifice diameter, allowing it to function effectively as either a flow control or shutoff valve. Notably, the NFFCKHV model is not pressure compensated, meaning that the flow regulation is directly proportional to the square root of the pressure differential across its two ports. The balanced adjustment mechanism ensures easy manipulation even under high-pressure conditions, while its sharp-edged orifice design minimizes variations due to changes in fluid viscosity. This bidirectional valve is optimized for a preferred flow path from port 1 to port 2, ensuring compatibility with other flow controls and maintaining zero leakage when fully shut off. The cartridge's extension dimensions may vary despite physical and functional interchangeability across 2-port flow control cartridges of similar frame sizes. It features EPDM seals suitable for systems utilizing phosphate ester fluids but is incompatible with petroleum-based substances. The Sun Hydraulics NFFCKHV accommodates a cavity T-18A Series 4 and has a capacity of 60 gpm (240 L/min) with a maximum operating pressure of 5000 psi (350 bar). The valve requires an installation torque between 350 to 375 lbf-ft (474 to 508 Nm), and its adjustment screw internal hex size measures at 5/32 inches (4 mm). With a locknut torque requirement of 80 to 90 lbf-in (9 to 10 Nm), this model weighs approximately 3 pounds (1.35 kg). For maintenance, Viton seal kits are available under cartridge number 990018006, ensuring continued reliable performance in demanding applications.
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 | 60 gpm (.56 inch)240 L/min. (14,2 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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