Brochure

6
Imperial Metric
Sizes
1-inch NPT & SWE
1.25-inch NPT & SWE
2-inch, 3-inch, 4-inch
DN 25, DN 32, DN 50, DN 80,
DN 100
Types
Stand alone or integrated into Flowgrid regulator
Pressure Protection
Standard: Over
Optional: Over and/or under
Temperature
1
-20°F to 150°F -29°C to 65°C
Maximum Operating Inlet Pressure
740 psig 50 bar
Operating Sense Pressure
1-inch
2-4 inch
5 to 450 psig
10 psig to 50 psig
0.35 bar to 31 bar
0.69 bar to 31 bar
Response Time
<0 .25 seconds
Table 1 - Specifications
1
EN14382 restricts the minimum temperature to -4° F (-20° C).
3
4
2
1
Principle of Operation for 1-inch Slam Shut
This valve has four critical elements:
1. Closing Element
2. Force Reduction Element
3. Tripping Element
4. Sensing Element
The sensing diaphragm will move the trip shaft
when the line pressure goes too high or too low.
At that point, the trip shaft will disengage the force
reduction element, which allows the rotating shaft
to rotate and the spring to push the plug to the seat,
causing full shutoff.
Spring
Color
Spring Range
Accuracy
(% of Set Point)
2
psig Bar
Over
Pressure
Under
Pressure
Red 5 - 10 0.35 - 0.7 10 2.5
Plated 10 - 40 0.7 - 3 5 2.5
Blue 40 - 90 3 - 6 2.5 2.5
Purple 90 - 175 6 - 12 2.5 1.0
Black 175 - 250 12 - 17 2.5 1.0
White/Green 250 - 450 17 - 31 2.5 1.0
Table 2 - Set Point Ranges for 1-inch Slam Shut Table 3 - Set Point Ranges for 2-4 inch Slam Shut
2
Preliminary AG Data, Testing per EN 14382
Spring
Color
Spring Range
Accuracy
(% of Set Point)
2
psig Bar
Over
Pressure
Under
Pressure
Plated 10 – 40 0.7 – 3 5 5
Blue 40 - 90 3 – 6 2.5 2.5
Purple 90 - 175 6 – 12 2.5 2.5
Black 175 - 250 12 – 17 2.5 2.5
White/Green 250 -450 17 – 31 2.5 2.5
2
Preliminary AG Data, Testing per EN 14382