FEATURES
JINSUNG orifice meters are a simple, economical method of measuring air and gas flow on
industrial combustion applications. The JSOM assemblies are available in threaded and are suitable
for gas or air service in 1/2" to 4" NPT.
The JSOM series allows simple measurement of air and gas flow in industrial combustion systems.
The JSOM is designed for use in the most demanding and harsh installations. A wide selection of
connection options and an extensive variety of orifice bore sizes make the JSOM ideal for individual
burner metering and total system metering. For example, on large multi-burner installations, a JSOM
can be installed at each burner's air and gas connection and in the main air header or gas manifold
for the furnace.
The heavy-duty construction of the JSOM series allows pressure up to 21 psig for the 1/2?to 4?size.
All JSOM components are suitable for temperatures up to 250 . Higher temperature materials
are available upon request. Consult factory for higher pressure applications.
JSOM assemblies not only provide accurate flow measurement, but also offer the convenience flow
measurement, but also offer the convenience of serving as an auxiliary union connection in the piping.
A JSOM may be installed in any position provided the location chosen ensures easy access to both
pressure cocks and sufficient clearance exists to remove the orifice plate. For maximum accuracy,
use at least 6 pipe diameters upstream and 4 pipe diameters downstream of the JSOM.
The JSE Orifice Calculator will calculate the flow of a given gas (Natural Gas, Propane, Butane,
coke Oven Gas or Air) under Varying conditions. To properly select an orifice plate, the following
information is needed : Gas temperature, upstream pressure, gas type, and pipe size. The Orifice
calculator determines gas flow at a given differential pressure across the orifice plate.

+ THREADED DESIGN
+ ECONOMICAL FLOW METERING
+ HEAVY DUTY CONSTRUCTION
+ EASY TO USE
+ HIGHLY ACCURATE RESULTS
DIMENSION
| MODEL NO |
A |
B |
C |
D |
E |
F |
G |
H |
| JSOM-15A |
66 |
50 |
70 |
56 |
44 |
M8-35*4 |
PT-6A |
PT-15A |
| JSOM-20A |
66 |
50 |
70 |
56 |
44 |
M8-35*4 |
PT-6A |
PT-20A |
| JSOM-25A |
66 |
50 |
70 |
56 |
44 |
M8-35*4 |
PT-6A |
PT-25A |
| JSOM-40A |
84 |
62 |
75 |
64 |
53 |
M10-45*4 |
PT-6A |
PT-40A |
| JSOM-50A |
98 |
74 |
80 |
72 |
60 |
M12-50*4 |
PT-6A |
PT-50A |
| JSOM-65A |
180 |
145 |
106 |
100 |
100 |
M16-65*8 |
PT-6A |
PT-65A |
| JSOM-80A |
180 |
145 |
106 |
100 |
100 |
M16-65*8 |
PT-6A |
PT-80A |
| JSOM-100A |
200 |
170 |
126 |
110 |
110 |
M16-75*8 |
PT-6A |
PT-100A |
|