SUN HYDRAULICS
NCGBKBN
$252.27 USD
- SUN HYDRAULICS
- Material:NCGBKBN
- Model:NCGB-KBN
- 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 NCGBKBN (NCGBKBN) is a precision-engineered needle valve with a reverse flow check, designed for regulating hydraulic fluid flow. This model features a fully adjustable orifice that allows for infinite adjustment from fully closed to the maximum orifice diameter, enabling precise control over fluid dynamics. The integrated high-capacity check valve permits unrestricted flow from port 2 to port 1, although it is important to note that the valve is not pressure compensated. This means that the fixed orifice size will regulate flow proportionally to the square root of the pressure differential across ports 1 and 2. Physically and functionally interchangeable with other 2-port flow control cartridges of the same frame size, this valve offers flexibility in various applications. The balanced adjustment mechanism ensures ease of adjustment even under high-pressure conditions, while the sharp-edged orifice design minimizes variations due to changes in fluid viscosity. It incorporates Sun's floating style construction, reducing potential binding issues due to excessive installation torque or machining variations. The NCGBKBN model fits into a T-18A cavity and belongs to Series 4, with a capacity of up to 60 gpm (240 L/min) and a maximum operating pressure of 5000 psi (350 bar). It has minimal leakage rates at specified viscosities and features an adjustment range requiring up to five full counterclockwise turns from fully closed to open. The installation requires specific torque settings for both the valve and locknut components. Additionally, cartridges configured with EPDM seals are suitable for systems using phosphate ester fluids but should avoid petroleum-based fluids due to potential seal damage.
The Sun Hydraulics NCGBKBN (NCGBKBN) is a precision-engineered needle valve with a reverse flow check, designed for regulating hydraulic fluid flow. This model features a fully adjustable orifice that allows for infinite adjustment from fully closed to the maximum orifice diameter, enabling precise control over fluid dynamics. The integrated high-capacity check valve permits unrestricted flow from port 2 to port 1, although it is important to note that the valve is not pressure compensated. This means that the fixed orifice size will regulate flow proportionally to the square root of the pressure differential across ports 1 and 2. Physically and functionally interchangeable with other 2-port flow control cartridges of the same frame size, this valve offers flexibility in various applications. The balanced adjustment mechanism ensures ease of adjustment even under high-pressure conditions, while the sharp-edged orifice design minimizes variations due to changes in fluid viscosity. It incorporates Sun's floating style construction, reducing potential binding issues due to excessive installation torque or machining variations. The NCGBKBN model fits into a T-18A cavity and belongs to Series 4, with a capacity of up to 60 gpm (240 L/min) and a maximum operating pressure of 5000 psi (350 bar). It has minimal leakage rates at specified viscosities and features an adjustment range requiring up to five full counterclockwise turns from fully closed to open. The installation requires specific torque settings for both the valve and locknut components. Additionally, cartridges configured with EPDM seals are suitable for systems using phosphate ester fluids but should avoid petroleum-based fluids due to potential seal damage.
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.
- 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.
- 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-18A |
| Series | 4 |
| Capacity | 60 gpm (.56 inch)240 L/min. (14,2 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 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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- 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
- Units of Measure, Settings, and Conversions
- Cartridges: Materials of Construction