Data Sheet
Bulletin 71.1:SR5
3
Figure 4. Type SR5 Performance Comparison
E0965
Increasing Flow
30 (2,1)
25 (1,7)
20 (1,4)
15 (1,0)
10 (0,7)
5 (0,4)
Outlet Pressure, psig (bar)
10% Offset
Setpoint
FISHER TYPE SR5
COMPETITOR 1
COMPETITOR 2
COMPETITOR 3
MAX FLOWSET FLOW
Features
• Nonporous Polished Body and Internals for
High Purity Processing—Body, plug, and
diaphragm plate (when applicable) are machined
from 316L Stainless Steel. All internal wetted
surfaces are mechanically polished and
electropolished to 20 µin (0.5 µm) Ra.
• Wide Control Range—Typical set points range
from 2 to 135 psig (0,2 to 9,3 bar) to cover a
wide range of applications.
• Large Turndown Ratio—No need for reduced C
v
trims at low ows.
• Self-Draining—Fluids will drain toward the inlet
of the body when the regulator is installed with the
spring case in the upright vertical position.
• Clean in Place or Steam in Place—The lock in
place pin can be inserted in the side of the spring
case to prevent the valve plug from closing during
cleaning.
• Tight Shutoff—Soft seat available to ensure
better shutoff and prevent excess pressure
buildup in deadend applications.
• Highly Stable—The upper guide ring provides for
stable control over entire operating range.
• Superior ow performance and accuracy—The
Type SR5 is designed to deliver high ows with
minimal offset to maintain an even pressure over
the full range of ow.
• Easy Maintenance—The design incorporates
a metal-to-metal stop to protect diaphragms
from damage due to over-compression at outer
circumference. Tri-clamp
®
allows easy access to
internal parts.
• Optional Diaphragm Support—A diaphragm
support is added to the regulator for installations
that will be exposed to vacuum conditions.
• Diaphragm Cycle Life—Metal 316L Stainless
Steel diaphragm is designed to maximize service
life.
• Covered Adjusting Screw—Electropolished
stainless steel adjusting screw cover improves the
aesthetics and cleanability of the regulator.
• Sanitary Design Standards—Designed to
meet 3A
®
, ASME BPE, and European Hygienic
Equipment Design Group criteria.
• Optional T-Handle Available—T-Handle option
available to accommodate frequent adjustments.
• Remote Setpoint Capability—An optional spring
case conguration permits pressure loading.
Loading pressure varied from a remote location
adjusts the setpoint in direct proportion.