SUN HYDRAULICS
NCGCLDV
$251.38 USD
- SUN HYDRAULICS
- Material:NCGCLDV
- Model:NCGC-LDV
- 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 NCGCLDV (NCGCLDV) is a robust needle valve with a reverse flow check, designed for precise flow regulation in hydraulic systems. This component allows for infinite adjustment from fully closed to the maximum orifice diameter, facilitating controlled flow management. It features an integral high-capacity check valve that permits unrestricted flow from port 2 to port 1, although it is not pressure compensated. The design of this needle valve ensures interchangeability among all 2-port flow control cartridges of the same frame size, despite potential variations in cartridge extension dimensions from the mounting surface. The NCGCLDV model incorporates a balanced adjustment mechanism, which simplifies adjustments even under high-pressure conditions. Its sharp-edged orifice design effectively minimizes flow variations caused by changes in fluid viscosity. Additionally, the Sun floating style construction reduces the risk of internal binding due to excessive torque during installation or variations in cavity-cartridge machining. This particular model has a cavity size of T-18A and belongs to Series 4, offering a capacity of 30 gpm (120 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). The valve exhibits minimal leakage at standard viscosity levels, with a maximum leakage rate of 5 drops per minute (0.3 cc/min). The valve's adjustment range spans 5.5 counterclockwise turns from fully closed to fully open. It requires specific installation torques for both the valve body and locknut to ensure optimal performance and reliability. This needle valve is compatible with Viton seal kits for enhanced durability and performance in various hydraulic applications.
The Sun Hydraulics NCGCLDV (NCGCLDV) is a robust needle valve with a reverse flow check, designed for precise flow regulation in hydraulic systems. This component allows for infinite adjustment from fully closed to the maximum orifice diameter, facilitating controlled flow management. It features an integral high-capacity check valve that permits unrestricted flow from port 2 to port 1, although it is not pressure compensated. The design of this needle valve ensures interchangeability among all 2-port flow control cartridges of the same frame size, despite potential variations in cartridge extension dimensions from the mounting surface. The NCGCLDV model incorporates a balanced adjustment mechanism, which simplifies adjustments even under high-pressure conditions. Its sharp-edged orifice design effectively minimizes flow variations caused by changes in fluid viscosity. Additionally, the Sun floating style construction reduces the risk of internal binding due to excessive torque during installation or variations in cavity-cartridge machining. This particular model has a cavity size of T-18A and belongs to Series 4, offering a capacity of 30 gpm (120 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). The valve exhibits minimal leakage at standard viscosity levels, with a maximum leakage rate of 5 drops per minute (0.3 cc/min). The valve's adjustment range spans 5.5 counterclockwise turns from fully closed to fully open. It requires specific installation torques for both the valve body and locknut to ensure optimal performance and reliability. This needle valve is compatible with Viton seal kits for enhanced durability and performance in various 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.
- 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 | 30 gpm (.38 inch)120 L/min. (9,7 mm) |
| Maximum Operating Pressure | 5000 psi350 bar |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 5 drops/min.0,3 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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- 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