SUN HYDRAULICS
NCFBYEN
$141.77 USD
- SUN HYDRAULICS
- Material:NCFBYEN
- Model:NCFB-YEN
- 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 NCFBYEN (NCFBYEN) is a needle valve with a reverse-flow check, designed to provide precise flow regulation. This fully adjustable orifice allows for infinite adjustment from fully closed to the maximum orifice diameter, offering versatility in various applications. It features an integral high-capacity check valve that ensures unrestricted flow from port 2 to port 1. Although not pressure compensated, these needle valves are non-compensating devices that regulate flow proportionally to the square root of the pressure differential across ports 1 and 2. The design incorporates a balanced adjustment mechanism for easy operation even at high pressures and uses a sharp-edged orifice to minimize flow variation due to viscosity changes. Additionally, it includes Sun's floating style construction to prevent internal parts from binding due to excessive installation torque or machining variations. The NCFBYEN model fits into cavity T-16A and belongs to Series 3 with a capacity of 30 gpm (120 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). It has a maximum valve leakage rate at 110 SUS (24 cSt) of 10 drops/minute (0.7 cc/min). The valve features an adjustment range that allows up to five full counterclockwise turns from fully closed to fully open. Installation requires specific torque values: the valve hex size is 1\u00bc inches (31.8 mm), requiring an installation torque between 150\u2013160 lbf ft (203\u2013217 Nm), while the locknut hex size is 9/16 inches (15 mm) with a locknut torque of 80\u201390 lbf in (9\u201310 Nm). The model weighs approximately 1.30 lb (0.60 kg) and uses Viton seal kits for optimal performance in various conditions.
The Sun Hydraulics NCFBYEN (NCFBYEN) is a needle valve with a reverse-flow check, designed to provide precise flow regulation. This fully adjustable orifice allows for infinite adjustment from fully closed to the maximum orifice diameter, offering versatility in various applications. It features an integral high-capacity check valve that ensures unrestricted flow from port 2 to port 1. Although not pressure compensated, these needle valves are non-compensating devices that regulate flow proportionally to the square root of the pressure differential across ports 1 and 2. The design incorporates a balanced adjustment mechanism for easy operation even at high pressures and uses a sharp-edged orifice to minimize flow variation due to viscosity changes. Additionally, it includes Sun's floating style construction to prevent internal parts from binding due to excessive installation torque or machining variations. The NCFBYEN model fits into cavity T-16A and belongs to Series 3 with a capacity of 30 gpm (120 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). It has a maximum valve leakage rate at 110 SUS (24 cSt) of 10 drops/minute (0.7 cc/min). The valve features an adjustment range that allows up to five full counterclockwise turns from fully closed to fully open. Installation requires specific torque values: the valve hex size is 1\u00bc inches (31.8 mm), requiring an installation torque between 150\u2013160 lbf ft (203\u2013217 Nm), while the locknut hex size is 9/16 inches (15 mm) with a locknut torque of 80\u201390 lbf in (9\u201310 Nm). The model weighs approximately 1.30 lb (0.60 kg) and uses Viton seal kits for optimal performance in various conditions.
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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- 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