SUN HYDRAULICS
NFFCHHN
$213.26 USD
- SUN HYDRAULICS
- Material:NFFCHHN
- Model:NFFC-HHN
- 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 NFFCHHN (NFFCHHN) is a versatile needle valve designed for precise flow control in hydraulic systems. This fully adjustable orifice allows users to regulate flow from fully closed to the maximum orifice diameter, providing flexibility in various applications. While not pressure compensated, it can be effectively used as a flow control or shutoff valve. The NFFCHHN model is part of the 2-port flow control cartridge series, which are interchangeable in terms of flow path and cavity for a given frame size, though extension dimensions may vary. This needle valve features a balanced adjustment mechanism that facilitates easy adjustments even under high pressure conditions. Its sharp-edged orifice design minimizes variations in flow due to changes in fluid viscosity, ensuring consistent performance. The valve's bidirectional flow path, with port 1 to 2 as the preferred direction, enhances compatibility with other flow controls. The NFFCHHN model is equipped with EPDM seals suitable for systems using phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they may incur damage. This cartridge fits into a T-18A cavity and supports a maximum operating pressure of 5000 psi (350 bar), with a capacity of 60 gpm (240 L/min). The adjustment range spans 5.5 counterclockwise turns from fully closed to open. Key installation specifications include a valve hex size of 1 5/8 inches (41.3 mm) and an installation torque range of 350 - 375 lbf ft (474 - 508 Nm). The adjustment screw requires an internal hex size of 5/32 inches (4 mm), while the locknut hex size is set at 9/16 inches (15 mm) with a torque specification of 80 - 90 lbf in (9 - 10 Nm). The overall weight of the model is approximately 3 lb (1.35 kg), and it comes with an optional Viton seal kit under material number 990018006 for enhanced sealing performance.
The Sun Hydraulics NFFCHHN (NFFCHHN) is a versatile needle valve designed for precise flow control in hydraulic systems. This fully adjustable orifice allows users to regulate flow from fully closed to the maximum orifice diameter, providing flexibility in various applications. While not pressure compensated, it can be effectively used as a flow control or shutoff valve. The NFFCHHN model is part of the 2-port flow control cartridge series, which are interchangeable in terms of flow path and cavity for a given frame size, though extension dimensions may vary. This needle valve features a balanced adjustment mechanism that facilitates easy adjustments even under high pressure conditions. Its sharp-edged orifice design minimizes variations in flow due to changes in fluid viscosity, ensuring consistent performance. The valve's bidirectional flow path, with port 1 to 2 as the preferred direction, enhances compatibility with other flow controls. The NFFCHHN model is equipped with EPDM seals suitable for systems using phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they may incur damage. This cartridge fits into a T-18A cavity and supports a maximum operating pressure of 5000 psi (350 bar), with a capacity of 60 gpm (240 L/min). The adjustment range spans 5.5 counterclockwise turns from fully closed to open. Key installation specifications include a valve hex size of 1 5/8 inches (41.3 mm) and an installation torque range of 350 - 375 lbf ft (474 - 508 Nm). The adjustment screw requires an internal hex size of 5/32 inches (4 mm), while the locknut hex size is set at 9/16 inches (15 mm) with a torque specification of 80 - 90 lbf in (9 - 10 Nm). The overall weight of the model is approximately 3 lb (1.35 kg), and it comes with an optional Viton seal kit under material number 990018006 for enhanced sealing performance.
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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