SUN HYDRAULICS
NFFDHIN
$229.44 USD
- SUN HYDRAULICS
- Material:NFFDHIN
- Model:NFFD-HIN
- 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 NFFDHIN (Material Number: NFFDHIN) is a highly versatile needle valve designed for precise flow regulation. This fully adjustable orifice can be fine-tuned from a completely closed position to the maximum orifice diameter, making it ideal for use as both a flow control and shutoff valve. While not pressure compensated, it operates effectively by regulating flow in proportion to the square root of the pressure differential across its ports. The valve's design features a balanced adjustment mechanism, ensuring easy manipulation even under high-pressure conditions. Its sharp-edged orifice minimizes variations caused by changes in fluid viscosity, offering reliable performance across different operating conditions. This model is part of the Series 4 range and fits into Cavity T-18A, with a capacity of handling up to 140 gpm (530 L/min) and a maximum operating pressure of 5000 psi (350 bar). The adjustment mechanism allows for up to 5.5 counterclockwise turns from fully closed to fully open. It boasts a bidirectional flow path with a preferred direction from port 1 to port 2 for compatibility with other flow control devices. Notably, there is no leakage when set to the shutoff position. The valve's construction includes EPDM seals suitable for systems using phosphate ester fluids; these seals are susceptible to damage if exposed to petroleum-based fluids. Installation requires specific torque settings: the valve hex size is 1-5/8 inches (41.3 mm) with an installation torque between 350 and 375 lbf-ft (474-508 Nm). Additionally, an internal hex size of 5/32 inches (4 mm) is required for adjustment screws, while the locknut hex size is 9/16 inches (15 mm), needing a torque of 80-90 lbf-in (9-10 Nm). The model weighs approximately 3 lbs (1.35 kg), and Viton seal kits are available under part number 990018006 for maintenance needs.
The Sun Hydraulics NFFDHIN (Material Number: NFFDHIN) is a highly versatile needle valve designed for precise flow regulation. This fully adjustable orifice can be fine-tuned from a completely closed position to the maximum orifice diameter, making it ideal for use as both a flow control and shutoff valve. While not pressure compensated, it operates effectively by regulating flow in proportion to the square root of the pressure differential across its ports. The valve's design features a balanced adjustment mechanism, ensuring easy manipulation even under high-pressure conditions. Its sharp-edged orifice minimizes variations caused by changes in fluid viscosity, offering reliable performance across different operating conditions. This model is part of the Series 4 range and fits into Cavity T-18A, with a capacity of handling up to 140 gpm (530 L/min) and a maximum operating pressure of 5000 psi (350 bar). The adjustment mechanism allows for up to 5.5 counterclockwise turns from fully closed to fully open. It boasts a bidirectional flow path with a preferred direction from port 1 to port 2 for compatibility with other flow control devices. Notably, there is no leakage when set to the shutoff position. The valve's construction includes EPDM seals suitable for systems using phosphate ester fluids; these seals are susceptible to damage if exposed to petroleum-based fluids. Installation requires specific torque settings: the valve hex size is 1-5/8 inches (41.3 mm) with an installation torque between 350 and 375 lbf-ft (474-508 Nm). Additionally, an internal hex size of 5/32 inches (4 mm) is required for adjustment screws, while the locknut hex size is 9/16 inches (15 mm), needing a torque of 80-90 lbf-in (9-10 Nm). The model weighs approximately 3 lbs (1.35 kg), and Viton seal kits are available under part number 990018006 for maintenance needs.
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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Additional Resources
- QuickDesign with SmartConnect Offers Drag-and-Drop Schematic Tool
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- Manufacturing Sun Cartridge Cavities
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- Fluid and Temperature Recommendations
- Sun's Floating Style Screw-In Cartridge
- Performance Data
- Sun Model Code Explanation; 999-901-334
- Units of Measure, Settings, and Conversions
- Cartridges: Materials of Construction
- Cavity Information (S-171) and Tooling