SUN HYDRAULICS
NFFCLGV
$200.84 USD
- SUN HYDRAULICS
- Material:NFFCLGV
- Model:NFFC-LGV
- 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 NFFCLGV (NFFCLGV) is a versatile needle valve designed for precise flow regulation in hydraulic systems. With its fully adjustable orifice, this valve allows for infinite adjustment from fully closed to the maximum orifice diameter, making it ideal for applications requiring meticulous flow control or as a shutoff valve. Notably, it is not pressure compensated, meaning the flow rate is controlled by the pressure differential across ports 1 and 2. The balanced adjustment mechanism facilitates easy operation even under high pressures, and the sharp-edged orifice design minimizes variations due to changes in fluid viscosity. This needle valve is interchangeable with other 2-port flow control cartridges of the same frame size, though extension dimensions may differ. The bidirectional flow path offers flexibility in installation, with port 1 to 2 being the preferred direction for interchangeability. When adjusted to the shutoff position, there is no leakage, ensuring reliable performance. The NFFCLGV model features a cavity T-18A series 4 capacity of up to 60 gpm (240 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). It requires an installation torque of 350-375 lbf ft (474-508 Nm) and has a valve hex size of 1-5/8 in. (41.3 mm). The adjustment screw internal hex size is 5/32 in. (4 mm), while the locknut hex size is 9/16 in. (15 mm), with a torque requirement of 80-90 lbf in. (9-10 Nm). Weighing at approximately 3 lbs (1.35 kg), this model comes with Viton seals suitable for systems using phosphate ester fluids; however, exposure to petroleum-based substances can damage these seals. Overall, the Sun Hydraulics NFFCLGV needle valve offers precise and reliable flow control capabilities tailored for demanding hydraulic applications where precision and adaptability are crucial.
The Sun Hydraulics NFFCLGV (NFFCLGV) is a versatile needle valve designed for precise flow regulation in hydraulic systems. With its fully adjustable orifice, this valve allows for infinite adjustment from fully closed to the maximum orifice diameter, making it ideal for applications requiring meticulous flow control or as a shutoff valve. Notably, it is not pressure compensated, meaning the flow rate is controlled by the pressure differential across ports 1 and 2. The balanced adjustment mechanism facilitates easy operation even under high pressures, and the sharp-edged orifice design minimizes variations due to changes in fluid viscosity. This needle valve is interchangeable with other 2-port flow control cartridges of the same frame size, though extension dimensions may differ. The bidirectional flow path offers flexibility in installation, with port 1 to 2 being the preferred direction for interchangeability. When adjusted to the shutoff position, there is no leakage, ensuring reliable performance. The NFFCLGV model features a cavity T-18A series 4 capacity of up to 60 gpm (240 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). It requires an installation torque of 350-375 lbf ft (474-508 Nm) and has a valve hex size of 1-5/8 in. (41.3 mm). The adjustment screw internal hex size is 5/32 in. (4 mm), while the locknut hex size is 9/16 in. (15 mm), with a torque requirement of 80-90 lbf in. (9-10 Nm). Weighing at approximately 3 lbs (1.35 kg), this model comes with Viton seals suitable for systems using phosphate ester fluids; however, exposure to petroleum-based substances can damage these seals. Overall, the Sun Hydraulics NFFCLGV needle valve offers precise and reliable flow control capabilities tailored for demanding hydraulic applications where precision and adaptability are crucial.
Needle valves are fully adjustable orifices used to regulate flow. They are infinitely adjustable from fully closed up to the maximum orifice diameter. They are not pressure compensated and may be used as flow controls or as shutoff valves.
- 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.
- The flow path through this valve is bi-directional. The preferred path is port 1 to 2, to allow interchangeability with other flow controls.
- There is no leakage when the adjustment mechanism is turned to the shut-off position.
- 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.
| Cavity | T-18A |
| Series | 4 |
| Capacity | 60 gpm (.56 inch)240 L/min. (14,2 mm) |
| Maximum Operating Pressure | 5000 psi350 bar |
| 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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