SUN Hydraulics NCEB-LCN Adjustable Needle Valve Screw Adjustment 2 Bar Check

SUN Hydraulics NCEB-LCN Adjustable Needle Valve Screw Adjustment 2 Bar Check

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SUN Hydraulics NCEB-LCN
Adjustable Needle Valve

 


Sun Hydraulics has established a strong foundation for consistently delivering exceptional performance in all aspects of their business. From product design and service delivery, Sun Hydraulics stands out in the industry.

Since the beginning, Sun products have been setting the standard for the screw-in hydraulic cartridge valve industry. Sun's floating cartridge construction and cavity design approach allows products to operate precisely and reliably at higher pressures and flow rates in the most demanding applications. The generous porting area, coupled with our manifold design and construction techniques, result in integrated packages that can be up to 50% smaller than competitive offerings.

Sun cartridge valves are offered in five primary sizes, with flow capacity and controlled horsepower doubling with each successive size. Within each broad functional area (pressure, flow, load control, etc.), multiple variations are available to help you optimize your control circuit, from individual valves to complete integrated packages. Their expansive product line allows you to develop the best control solution for your hydraulic application.


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.

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.


 

Technical Specification

Control - Standard Screw Adjustment
Reverse Flow Check - 30 PSI 2 Bar
Seal Material - Buna-N

Cavity T-5A
Series 2
Capacity 12 gpm (.25 inch)
Maximum Operating Pressure 5000 psi
Maximum Valve Leakage at 110 SUS (24 cSt) 10 drops/min.
Adjustment - No. of CCW Turns from Fully Closed to Fully Open 5
Valve Hex Size 1 1/8 in.
Valve Installation Torque 45 - 50 lbf ft
Adjustment Screw Internal Hex Size 5/32 in.
Locknut Hex Size 9/16 in.
Locknut Torque 80 - 90 lbf in.
Model Weight 0.27 Kg
Seal kit - Cartridge Buna: 990203007
Seal kit - Cartridge EPDM: 990203014
Seal kit - Cartridge Viton: 990203006


*Note: Data may vary by configuration.






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The purchaser of these items must ensure that they are satisfactory for use in the application for which they are intended.
No responsibility can be accepted if any products are incorrectly or inadequately fitted.
Goods may not be exact to image shown.