N100, N100A, N110, and N120 Series
2
Installation
Make sure the flow is in the same
direction as the arrow cast into the
valve body.
Refer to Figures 2 and 3.
Piping to the valve should be kept as short as possible
with a minimum number of pipe fittings. Remove any
pipe scale or foreign material from the piping before
installing the valves.
Specifications
Type Numbers, Differential Pressure
Settings and Ranges
See Tables 1, 2, and 3
CAUTION
Maximum Working Pressure
400 psig (27,6 bar)
Temperature Capabilities
-20° to 140°F (-29° to 60°C)
PUMP SIZE
TYPE NUMBER
BODY SIZE, NPS
DIFFERENTIAL PRESSURE
SETTING, PSID (bar d)
DIFFERENTIAL PRESSURE
RANGE, PSID (bar d)
NPS 2
N100A-08-1
1 FNPT
50 (3,4)
25 to 75 (1,7 to 5,2)
N100A-08-2
115 (7,9)
50 to 150 (3,4 to 10,3)
NPS 2 to 3
N100A-10-1
1-1/4 FNPT
50 (3,4)
25 to 75 (1,7 to 5,2)
N100A-10-2
115 (7,9)
50 to 150 (3,4 to 10,3)
N100A-12-1
1-1/2 FNPT
50 (3,4)
25 to 75 (1,7 to 5,2)
N100A-12-2
115 (7,9)
50 to 150 (3,4 to 10,3)
NPS 4
N100-16-1
2 FNPT
50 (3,4)
25 to 75 (1,7 to 5,2)
N100-16-2
2 FNPT
115 (7,9)
50 to 150 (3,4 to 10,3)
N100-20-2
2-1/2 FNPT
50 (3,4)
25 to 75 (1,7 to 5,2)
Table 1
.
Bypass Valves (For Large Pumps)
LIQUID METER SIZE
TYPE NUMBER
BODY SIZE, NPS
DIFFERENTIAL PRESSURE
SETTING, PSID (bar d)
DIFFERENTIAL PRESSURE
RANGE, PSID (bar d)
NPS 3/4 or 1
N120-06-3
3/4 FNPT
12 (0,83)
10 to 20 (0,69 to 1,4)
N120-08-3
1 FNPT
PUMPING CAPACITY,
GPM (l/min)
TYPE NUMBER
BODY SIZE, NPS
DIFFERENTIAL PRESSURE
SETTING, PSID (bar d)
DIFFERENTIAL PRESSURE
RANGE, PSID (bar d)
5 to 20 (18,9 to 75,7)
N110-06-1
3/4 FNPT
50 (3,4)
25 to 75 (1,7 to 5,2)
N110-06-2
100 (6,9)
75 to 150 (5,2 to 10,3)
20 to 40 (75,7 to 151)
N110-08-1
1 FNPT
50 (3,4)
25 to 75 (1,7 to 5,2)
N110-08-2
100 (6,9)
75 to 150 (5,2 to 10,3)
Table 2
.
Bypass Valves (For Small Pumps)
Table 3
.
Backpressure Valves
The valves can be installed in any position. Make
certain that flow is in the same direction as the arrow
cast on the body.
Use an appropriate pipe compound on the male pipeline
threads. Pull the valve onto the pipe until hand tight and
then wrench tighten it for approximately two additional
turns. Larger size valves may require an additional
amount of torque to obtain a leak free connection.
After installation, pressurize the piping and use a leak
detect solution on all joints to check for leakage. If
leakage is found retighten fittings until leaking stops.
