Products >> Hydraulic Valve >> SUN Hydraulic Valve

SUN check valve

Product No.：NCFB-LCN
Brand：SUN
Place of Origin：USA
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Product description：
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-16A
Series	3
Series	30 gpm (.38 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 1/4 in.
Valve Installation Torque	150 - 160 lbf ft
Adjustment Screw Internal Hex Size	5/32 in.
Locknut Hex Size	9/16 in.
Locknut Torque	80 - 90 lbf in.
Model Weight	0.57 kg.
Seal kit - Cartridge Buna	990016007
Seal kit - Cartridge EPDM	990016014
Seal kit - Cartridge Polyurethane	990016002
Seal kit - Cartridge Viton	990016006

Product features:

Maximum design flexibility with consistent port usage, as well as optimized port connection areas
A minimum number of jacks are used to match 2-,3-,4-, and 6-port cartridge valves, thus reducing the need for jack tools
7 cartridge valve sizes enable flow rates ranging from 0.25 gpm (1 L/min.) to 300 gpm (1100 L/min.)
High operating pressure: All functional valves can withstand 5000 psi (350 bar)
Cartridge valve types are interchangeable without affecting equipment performance

Product description：

NC F B - L C N
Maximum nodal flow aperture（F)	Flow(B)	Control(L)	Reverse Flow Check（C)	Seal Materia(N)
B：4.0mm	B：Maximum flow	L ：Screw Adjustment	A 0.3 bar	N：Buna-N
C：4.8mm	C：Minimum flow	H： Tamper Resistant-Factory Set	C： 2.0 bar	V：Viton
E：6.3mm		K： Handknob	E：5.0 bar
F：9.6mm
G：14.2mm