SUN HYDRAULICS
NCGBKDV
$258.72 USD
- SUN HYDRAULICS
- Material:NCGBKDV
- Model:NCGB-KDV
- 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 NCGBKDV (NCGBKDV) is a versatile needle valve with a reverse-flow check, designed for precise flow regulation in hydraulic systems. This model features an adjustable orifice that allows for fine-tuning from fully closed to the maximum orifice diameter, ensuring optimal flow control. An integral high-capacity check valve facilitates unrestricted flow from port 2 to port 1, although it is important to note that the valve is not pressure compensated. The NCGBKDV is interchangeable with other 2-port flow control cartridges of the same frame size, offering consistent flow paths and cavity dimensions. However, extension dimensions from the mounting surface may differ. The non-compensating nature of this needle valve means that the fixed orifice size regulates flow proportionally to the square root of the pressure differential across ports 1 and 2. A balanced adjustment mechanism ensures easy manipulation even under high-pressure conditions, while the sharp-edged orifice design minimizes variations due to changes in fluid viscosity. For systems using phosphate ester fluids, cartridges configured with EPDM seals are recommended; exposure to petroleum-based fluids can damage these seals. The model incorporates Sun's floating style construction to reduce internal binding risks due to excessive installation torque or machining variations. It fits a Cavity T-18A Series 4 and boasts a capacity of 60 gpm (240 L/min) with a maximum operating pressure of 5000 psi (350 bar). The valve's leakage rate at 110 SUS (24 cSt) is minimal at just 10 drops/min (0.7 cc/min). With a weight of 3 lbs (1.35 kg), this robust component requires an installation torque between 350 and 375 lbf ft (474 to 508 Nm), ensuring secure placement in demanding hydraulic applications.
The Sun Hydraulics NCGBKDV (NCGBKDV) is a versatile needle valve with a reverse-flow check, designed for precise flow regulation in hydraulic systems. This model features an adjustable orifice that allows for fine-tuning from fully closed to the maximum orifice diameter, ensuring optimal flow control. An integral high-capacity check valve facilitates unrestricted flow from port 2 to port 1, although it is important to note that the valve is not pressure compensated. The NCGBKDV is interchangeable with other 2-port flow control cartridges of the same frame size, offering consistent flow paths and cavity dimensions. However, extension dimensions from the mounting surface may differ. The non-compensating nature of this needle valve means that the fixed orifice size regulates flow proportionally to the square root of the pressure differential across ports 1 and 2. A balanced adjustment mechanism ensures easy manipulation even under high-pressure conditions, while the sharp-edged orifice design minimizes variations due to changes in fluid viscosity. For systems using phosphate ester fluids, cartridges configured with EPDM seals are recommended; exposure to petroleum-based fluids can damage these seals. The model incorporates Sun's floating style construction to reduce internal binding risks due to excessive installation torque or machining variations. It fits a Cavity T-18A Series 4 and boasts a capacity of 60 gpm (240 L/min) with a maximum operating pressure of 5000 psi (350 bar). The valve's leakage rate at 110 SUS (24 cSt) is minimal at just 10 drops/min (0.7 cc/min). With a weight of 3 lbs (1.35 kg), this robust component requires an installation torque between 350 and 375 lbf ft (474 to 508 Nm), ensuring secure placement in demanding hydraulic applications.
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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- Manufacturing Sun Cartridge Cavities
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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