SUN HYDRAULICS
NFDCLBV
$55.79 USD
- SUN HYDRAULICS
- Material:NFDCLBV
- Model:NFDC-LBV
- 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 NFDCLBV (Material Number: NFDCLBV) is a versatile needle valve designed to regulate flow with precision. This fully adjustable orifice can be set from completely closed to the maximum orifice diameter, making it suitable for applications requiring both flow control and shutoff capabilities. It is important to note that this valve is not pressure compensated, meaning that the flow regulation depends on the pressure differential across its ports. The balanced adjustment mechanism ensures ease of operation even under high-pressure conditions. This needle valve features a sharp-edged orifice design, which minimizes variations in flow due to changes in fluid viscosity. It supports bidirectional flow, although the preferred direction is from port 1 to port 2 for compatibility with other flow control devices. When adjusted to the shutoff position, the valve guarantees zero leakage. The NFDCLBV model can handle a maximum operating pressure of 5000 psi (350 bar) and has a capacity of 12 gpm (45 L/min). The cartridge's design allows for interchangeability with other 2-port flow control cartridges, maintaining the same cavity and flow path dimensions across different frame sizes. However, extension dimensions may vary slightly from the mounting surface. For installations using phosphate ester fluids, cartridges configured with EPDM seals are recommended as these seals are susceptible to damage when exposed to petroleum-based fluids. Additional specifications include a valve hex size of 1-1/8 inches (28.6 mm), installation torque ranging from 45-50 lbf-ft (61-68 Nm), and an internal hex size of 5/32 inches (4 mm) for adjustment screws. The model weighs approximately .60 lb (.30 kg). For maintenance or replacement needs, Viton seal kits are available under part number 990203006.
The Sun Hydraulics NFDCLBV (Material Number: NFDCLBV) is a versatile needle valve designed to regulate flow with precision. This fully adjustable orifice can be set from completely closed to the maximum orifice diameter, making it suitable for applications requiring both flow control and shutoff capabilities. It is important to note that this valve is not pressure compensated, meaning that the flow regulation depends on the pressure differential across its ports. The balanced adjustment mechanism ensures ease of operation even under high-pressure conditions. This needle valve features a sharp-edged orifice design, which minimizes variations in flow due to changes in fluid viscosity. It supports bidirectional flow, although the preferred direction is from port 1 to port 2 for compatibility with other flow control devices. When adjusted to the shutoff position, the valve guarantees zero leakage. The NFDCLBV model can handle a maximum operating pressure of 5000 psi (350 bar) and has a capacity of 12 gpm (45 L/min). The cartridge's design allows for interchangeability with other 2-port flow control cartridges, maintaining the same cavity and flow path dimensions across different frame sizes. However, extension dimensions may vary slightly from the mounting surface. For installations using phosphate ester fluids, cartridges configured with EPDM seals are recommended as these seals are susceptible to damage when exposed to petroleum-based fluids. Additional specifications include a valve hex size of 1-1/8 inches (28.6 mm), installation torque ranging from 45-50 lbf-ft (61-68 Nm), and an internal hex size of 5/32 inches (4 mm) for adjustment screws. The model weighs approximately .60 lb (.30 kg). For maintenance or replacement needs, Viton seal kits are available under part number 990203006.
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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- Sun Cartridges with EPDM Seals
- 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.