Emerson Fisher EZR Series Pressure Reducing Regulator
Type EZR pilot-operated, pressure reducing regulator designed to
give accurate, smooth, quiet operation, tight shutoff, and long
life, even in dirty service. EZR Series can be installed in various
applications such as natural gas transmission/distribution systems,
industrial and commercial facilities. The Type EZROSX is available
with a slam-shut device which provides overpressure protection
and/or under pressure protection by completely shutting off the
flow of gas to the downstream system.
Features
* Tight Shutoff—The metal plug is designed to deflect particles and
debris away from the diaphragm, providing superior shutoff and
increasing the time between maintenance intervals.
* Debris Protection—The revolutionary flow path of the EZR Series
cage minimizes the damage from debris while the stainless steel
inlet strainer prevents large particles from damaging the
diaphragm.
* Long Life—The field proven dipahragm design incorporates layered
fabric, a raised bead edge and molded shape to increase strength,
durability, and service life
* High Capacity—The flow path of the EZR Series produces
best-in-class capacity combined with the quietest operation.
Fisher™ products are laboratory tested so 100% of the published
flow capacity can be used with confidence.
* Travel Indicator—Simplifies in-service inspection and system
troubleshooting
* High Accuracy—Multiple outlet pressure ranges and narrow
proportional bands offered by the 161EB Series, 161AY Series and
Type PRX/120 pilots provide the EZR Series with tight, accurate
control.
* Integrated Slamshut—Type EZR-OSX slam-shut interrupts gas service
during an overpressure or underpressure condition.
Specifications
Available Configurations
See Table 1
Body Sizes, Material, End Connection and Pressure Rating
See Table 2
Maximum Inlet Pressures:Emergency: 175 psig / 12.1 bar,Operating: See Table 3
Maximum Outlet Pressure:
Emergency (Casing): 15 psig / 1.0 bar;To avoid internal parts
damage: 3 psig / 0.21 bar,differential above outlet pressure
setting
Outlet Pressure Ranges
Regulator: 3.5 in. w.c. to 10 psig /9 mbar to 0.69 bar See Table 4
Internal Relief Performance
Temperature Capabilities:-20 to 150°F / -29 to 66°C
Spring Case Vent Connection
Internal Relief: 1 NPT
High Capacity Relief: 2-1/2 NPT
External Registration Connection:3/4 NPT
Main Valve Body Sizes,End Connection Styles,Max Bearing Pressure
| MAIN VALVE BODY SIZES | MATERIAL | END CONNECTION STYLES | PRESSURE |
| NPT | DN |
| 1"*1", 2"*1", 2"*2" | 25*25, 50*25, 50*50 | WCC Steel | CL150RF | 20BAR |
| CL300RF | 52BAR |
| CL600RF | 103BAR |
Outlet (Control) Pressure Ranges and Typical Proportional Bands
| Type | Outlet Presure Range | Proportional Band |
| Psi | Bar | Psi | Bar |
161AY or
161AYM | 6 to 15-inches w.c.
0.5 to 1.2
1.2 to 2.5
2.5 to 4.5
4.5 to 7 | 15 to 37 mbar
0.03 to 0.08
0.08 to 0.17
0.17 to 0.31
0.31 to 0.48 | 1-inch w.c.
1-inch w.c.
0.5
0.5
0.5 | 3 mbar(2)
3 mbar(2)
0.03(2)
0.03(2)
0.03(2) |
|
|
|
|
161EB or
161EBM | 5 to 15
10 to 40
30 to 75
70 to 140
130 to 200
200 to 350 | 0.35 to 1.0
0.69 to 2.8
2.1 to 5.2
4.8 to 10
9 to 14
14 to 24 | 0.5
0.5
0.6
1.3
1.5
3 | 0.03(2)
0.03(2)
0.04(2)
0.09(2)
0.10(2)
0.21(2) |
| 161EB | 30 to 300 | 2.1 to 20.7 | 6 | 0.41 |
