SUN HYDRAULICS
NCFBYDN
$143.76 USD
- SUN HYDRAULICS
- Material:NCFBYDN
- Model:NCFB-YDN
- 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 NCFBYDN (NCFBYDN) is a versatile needle valve with reverse flow check, designed for precise flow regulation. This component allows for infinite adjustability from fully closed to the maximum orifice diameter, making it suitable for applications requiring fine-tuned flow control. It features an integral high-capacity check valve that permits unrestricted flow from port 2 to port 1, although it is not pressure compensated. This means the flow through the valve is regulated in proportion to the square root of the pressure differential across ports 1 and 2 due to its non-compensating nature. The balanced adjustment mechanism ensures easy adjustments even under high-pressure conditions, while the sharp-edged orifice design minimizes flow variations caused by changes in fluid viscosity. This model incorporates Sun's floating style construction, reducing the risk of internal parts binding due to excessive installation torque or machining variations. It fits into a Cavity T-16A and is part of Series 3 with a capacity of up to 30 gpm (120 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). The valve exhibits minimal leakage at specified conditions and includes various adjustment features such as a screw internal hex size of 5/32 inches and a locknut hex size of 9/16 inches. The installation torque ranges from 150 to 160 lbf ft (203 to 217 Nm), ensuring secure placement. Weighing approximately 1.30 lb (0.60 kg), this model uses Viton seals, with replacement seal kits available under part number 990-016-006.
The Sun Hydraulics NCFBYDN (NCFBYDN) is a versatile needle valve with reverse flow check, designed for precise flow regulation. This component allows for infinite adjustability from fully closed to the maximum orifice diameter, making it suitable for applications requiring fine-tuned flow control. It features an integral high-capacity check valve that permits unrestricted flow from port 2 to port 1, although it is not pressure compensated. This means the flow through the valve is regulated in proportion to the square root of the pressure differential across ports 1 and 2 due to its non-compensating nature. The balanced adjustment mechanism ensures easy adjustments even under high-pressure conditions, while the sharp-edged orifice design minimizes flow variations caused by changes in fluid viscosity. This model incorporates Sun's floating style construction, reducing the risk of internal parts binding due to excessive installation torque or machining variations. It fits into a Cavity T-16A and is part of Series 3 with a capacity of up to 30 gpm (120 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). The valve exhibits minimal leakage at specified conditions and includes various adjustment features such as a screw internal hex size of 5/32 inches and a locknut hex size of 9/16 inches. The installation torque ranges from 150 to 160 lbf ft (203 to 217 Nm), ensuring secure placement. Weighing approximately 1.30 lb (0.60 kg), this model uses Viton seals, with replacement seal kits available under part number 990-016-006.
Needle valves with reverse-flow check are fully adjustable orifices used to regulate flow. They are infinitely adjustable from fully closed up to the maximum orifice diameter. An integral high-capacity check valve provides unrestricted flow from port 2 to port 1. They are not pressure compensated.
- 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.
- Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.
| Cavity | T-16A |
| Series | 3 |
| Capacity | 30 gpm (.38 inch)120 L/min. (9,7 mm) |
| Maximum Operating Pressure | 5000 psi350 bar |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 10 drops/min.0,7 cc/min. |
| Adjustment - Number of Counterclockwise Turns - Fully Closed to Fully Open | 55 |
| Valve Hex Size | 1 1/4 in.31,8 mm |
| Valve Installation Torque | 150 - 160 lbf ft203 - 217 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 | 1.30 lb0,60 kg |
| Seal kit - Cartridge | Viton: 990-016-006 |
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Additional Resources
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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