Sun

Needle Valves

Fully Adjustable Needle Valves
SUN’s needle valves are adjustable orifice components that regulate flow. When placed ahead of a control device or actuator, needle valves act as a meter-in device; when placed on the downstream side of a control device, they act to meter-out flow from the actuator. Needle valves are also available with an integral check valve to provide unrestricted flow from port 2 to port 1.
Adjustable Needle Valve (No check) – NF*C
SUN’s adjustable needle valves offer excellent metering characteristics for accurate and precise flow control. Performance parameters include:
  •  A balanced adjusting mechanism for low
  • Operating effort at high pressure
  • Sharp-edged orifice design to minimize flow
  • Variation with viscosity changes.
  • Optional needle orifice ranges.
  • Positive shut-off of flow when closed.
  • Five turns of adjustment.
Adjustable Needle Valve with Check – NC*B
Performance parameters optimized in SUN’s adjustable needle cartridge with built-in check are similar to the NF*C but include a high capacity free flow check.

Part Number
VALVE MATERIAL
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PORTS 1 AND 2
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RECM. GPM
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A
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B
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C
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NFCC-LCN-GCB
Aluminum Body
3/8" NPT
9
2.85
2.56
1.19
NFDC-LAN-DCC
Aluminum Body
1/2" NPT
15
3.23
3.25
1.5
NFEC-LEN-ICD
Aluminum Body
2/4" NPT
30
5.72
4.63
2.25
NFEC-LEN-ICE
Aluminum Body
1" NPT
30
4.72
4.63
2.25
NFCC-LCN-GCI
Aluminum Body
6 SAE
9
2.85
2.56
1.19
NFDC-LAN-DCJ
Aluminum Body
8 SAE
15
3.23
3.25
1.5
NFEC-LEN-ICL
Aluminum Body
12 SAE
30
5.72
4.63
2.25
NFEC-LEN-ICM
Aluminum Body
16 SAE
30
4.72
4.63
2.25
NFCC-LCN-GCB/S
Steel Body
3/8" NPT
9
2.85
2.56
1.19
NFDC-LAN-DCC/S
Steel Body
1/2" NPT
15
3.23
3.25
1.5
NFEC-LEN-ICD/S
Steel Body
2/4" NPT
30
5.72
4.63
2.25
NFEC-LEN-ICE/S
Steel Body
1" NPT
30
4.72
4.63
2.25
NFCC-LCN-GCI/S
Steel Body
6 SAE
9
2.85
2.56
1.19
NFDC-LAN-DCJ/S
Steel Body
8 SAE
15
3.23
3.25
1.5
NFEC-LEN-ICL/S
Steel Body
12 SAE
30
5.72
4.63
2.25
NFEC-LEN-ICM/S
Steel Body
16 SAE
30
4.72
4.63
2.25

*3000 psi max. pressure (Aluminum) **5000 psi max. pressure (Steel)