SUN HYDRAULICS
NFDCHAV
$68.70 USD
- SUN HYDRAULICS
- Material:NFDCHAV
- Model:NFDC-HAV
- 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 NFDCHAV (NFDCHAV) is a versatile needle valve designed for precise flow regulation in hydraulic systems. Featuring a fully adjustable orifice, the valve can be adjusted from fully closed to the maximum orifice diameter, providing flexible flow control capabilities. It functions as both a flow control and shutoff valve, although it is not pressure compensated. This means that the flow through the valve is regulated in proportion to the square root of the pressure differential across ports 1 and 2. The balanced adjustment mechanism ensures easy operation even under high-pressure conditions, while the sharp-edged orifice design minimizes variations in flow due to changes in fluid viscosity. The NFDCHAV model supports bidirectional flow, with a preferred path from port 1 to port 2 for compatibility with other flow controls. It guarantees zero leakage when fully closed, making it reliable for critical applications. The cartridge features EPDM seals suitable for systems using phosphate ester fluids; however, exposure to petroleum-based fluids should be avoided as it can damage these seals. This needle valve fits into a T-5A cavity and has a series 2 capacity with a maximum operating pressure of up to 5000 psi (350 bar). It allows an adjustment range of up to 5.5 counterclockwise turns from fully closed to open, offering precise control over fluid dynamics. Installation requires a torque of 45\u201350 lbf ft (61\u201368 Nm), and additional specifications include an internal hex size for adjustment screw and locknut torque specifications. With its robust design and reliable performance characteristics, the Sun Hydraulics NFDCHAV needle valve is well-suited for demanding hydraulic applications where precise flow control is essential.
The Sun Hydraulics NFDCHAV (NFDCHAV) is a versatile needle valve designed for precise flow regulation in hydraulic systems. Featuring a fully adjustable orifice, the valve can be adjusted from fully closed to the maximum orifice diameter, providing flexible flow control capabilities. It functions as both a flow control and shutoff valve, although it is not pressure compensated. This means that the flow through the valve is regulated in proportion to the square root of the pressure differential across ports 1 and 2. The balanced adjustment mechanism ensures easy operation even under high-pressure conditions, while the sharp-edged orifice design minimizes variations in flow due to changes in fluid viscosity. The NFDCHAV model supports bidirectional flow, with a preferred path from port 1 to port 2 for compatibility with other flow controls. It guarantees zero leakage when fully closed, making it reliable for critical applications. The cartridge features EPDM seals suitable for systems using phosphate ester fluids; however, exposure to petroleum-based fluids should be avoided as it can damage these seals. This needle valve fits into a T-5A cavity and has a series 2 capacity with a maximum operating pressure of up to 5000 psi (350 bar). It allows an adjustment range of up to 5.5 counterclockwise turns from fully closed to open, offering precise control over fluid dynamics. Installation requires a torque of 45\u201350 lbf ft (61\u201368 Nm), and additional specifications include an internal hex size for adjustment screw and locknut torque specifications. With its robust design and reliable performance characteristics, the Sun Hydraulics NFDCHAV needle valve is well-suited for demanding hydraulic applications where precise flow control is essential.
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-5A |
| Series | 2 |
| Capacity | 12 gpm (.25 inch)45 L/min. (6,4 mm) |
| Maximum Operating Pressure | 5000 psi350 bar |
| Adjustment - Number of Counterclockwise Turns - Fully Closed to Fully Open | 55 |
| Valve Hex Size | 1 1/8 in.28,6 mm |
| Valve Installation Torque | 45 - 50 lbf ft61 - 68 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 | .60 lb0,30 kg |
| Seal kit - Cartridge | Viton: 990-203-006 |
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Additional Resources
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- QuickDesign with SmartConnect Offers Drag-and-Drop Schematic Tool
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- Manufacturing Sun Cartridge Cavities
- Check, Flow Control, and Priority Flow Control Valves
- Units of Measure, Settings, and Conversions
- Cartridges: Materials of Construction
- Cavity Information (S-171) and Tooling
- Fluid and Temperature Recommendations
- Sun's Floating Style Screw-In Cartridge
- Performance Data
- Sun Model Code Explanation; 999-901-334
Notes:
- For Series 1 cartridges configured with an O control (panel mount handknob), a .75 in. (19 mm) diameter hole is required in the panel.