Sight pattern valves are ideally suited for vertical inline installation requiring controlled visible fluid metering. Knurled wheel provides for smooth, accurate adjustments of flow rate. Drip feed rate is adjustable from full orifice flow to complete shut-off. Flow is readily visible through large sight window. Pressure units supplied with non-vented sights. Gravity flow units supplied with vented sights. Vacuum application is available (requires modification) - Please specify.
STANDARD MATERIALS:
Precision machined from brass bar stock.
Buna N seals.
Gage glass sight.
Pipe threads are dryseal
OPERATING CONDITIONS:
Maximum working pressure up to 125 PSI (861.9 kPa)to orifice 
 

MODIFICATIONS AVAILABLE MADE TO ORDER - ConSULT OUR FACTORY
(MINIMUM ORDER MAY BE REQUIRED) 
CATALOG NUMBER A - HEX
[ORIFICE] B -
INLET C -
OUTLET D
INCHES
(mm) E
INCHES
(mm)
GRAVITY PRESSURE
N102-01 -  .81 Inches
(20.57 mm)
[.094 Inches]
[2.39 mm] 1/8 M 1/8 M 3.03 (76.96) 1.50 (38.10)
N102-02 N102-12 1/4 M 1/4 M 3.41 (86.61)
N102-03 -  1/8 F 1/8 F 2.72 (69.09)
N102-04 N102-14 1/4 F 1/4 F 2.97 (75.44)
N102-06 -  1/4 M 1/4 T 3.44 (87.38)
N103-01 -  .94 Inches
(23.88 mm)
[.109 Inches]
[2.77 mm] 3/8 M 3/8 M 3.56 (90.42) 1.75 (44.45)
N103-02 -  3/8 F 3/8 F 3.25 (82.55)
N104-01 -  1.06 Inches
(26.92 mm)
[.152 Inches]
[3.86 mm] 1/2 M 1/2 M 3.94 (100.08) 1.75 (44.