SUN HYDRAULICS
NFFCHGV
$216.73 USD
- SUN HYDRAULICS
- Material:NFFCHGV
- Model:NFFC-HGV
- 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 NFFCHGV (NFFCHGV) is a versatile needle valve designed to regulate flow with precision. This fully adjustable orifice can be set from completely closed to its maximum orifice diameter, providing flexibility in controlling hydraulic systems. The NFFCHGV is not pressure compensated, making it suitable for use as either a flow control or shutoff valve. It features bidirectional flow capability, with the preferred path being from port 1 to port 2 for compatibility with other flow control devices. The valve's design includes a balanced adjustment mechanism that allows for easy adjustments even under high-pressure conditions, and its sharp-edged orifice minimizes variations in flow due to changes in fluid viscosity. The NFFCHGV fits into the Cavity T-18A and belongs to Series 4, offering a capacity of up to 60 gpm (240 L/min) and a maximum operating pressure of 5000 psi (350 bar). The valve requires an installation torque between 350-375 lbf ft (474-508 Nm), and its adjustment screw has an internal hex size of 5/32 inches (4 mm). It also features a locknut with a hex size of 9/16 inches (15 mm) that should be torqued between 80-90 lbf in (9-10 Nm). The model weighs approximately 3.00 lb (1.35 kg) and is compatible with Viton seal kits for effective sealing performance. This needle valve is particularly suited for applications requiring precise flow regulation without leakage when fully closed. Its construction allows it to be used interchangeably with other two-port flow control cartridges within the same frame size, albeit with potential variations in extension dimensions from the mounting surface. Cartridges equipped with EPDM seals are recommended for systems utilizing phosphate ester fluids, as exposure to petroleum-based substances can damage these seals.
The Sun Hydraulics NFFCHGV (NFFCHGV) is a versatile needle valve designed to regulate flow with precision. This fully adjustable orifice can be set from completely closed to its maximum orifice diameter, providing flexibility in controlling hydraulic systems. The NFFCHGV is not pressure compensated, making it suitable for use as either a flow control or shutoff valve. It features bidirectional flow capability, with the preferred path being from port 1 to port 2 for compatibility with other flow control devices. The valve's design includes a balanced adjustment mechanism that allows for easy adjustments even under high-pressure conditions, and its sharp-edged orifice minimizes variations in flow due to changes in fluid viscosity. The NFFCHGV fits into the Cavity T-18A and belongs to Series 4, offering a capacity of up to 60 gpm (240 L/min) and a maximum operating pressure of 5000 psi (350 bar). The valve requires an installation torque between 350-375 lbf ft (474-508 Nm), and its adjustment screw has an internal hex size of 5/32 inches (4 mm). It also features a locknut with a hex size of 9/16 inches (15 mm) that should be torqued between 80-90 lbf in (9-10 Nm). The model weighs approximately 3.00 lb (1.35 kg) and is compatible with Viton seal kits for effective sealing performance. This needle valve is particularly suited for applications requiring precise flow regulation without leakage when fully closed. Its construction allows it to be used interchangeably with other two-port flow control cartridges within the same frame size, albeit with potential variations in extension dimensions from the mounting surface. Cartridges equipped with EPDM seals are recommended for systems utilizing phosphate ester fluids, as exposure to petroleum-based substances can damage these seals.
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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Additional Resources
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- 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