Emerson Fisher SR5 User manual

D103099XENG
Installation Guide
English – February 2006 Type SR5
www.emersonprocess.com/regulators
Introduction
This installation guide provides instructions for
installation, startup, and adjustment. To receive a copy
of the instruction manual, contact your local Fisher
Sales Ofce or Sales Representative or view a copy
at www.emersonprocess.com/regulators. For further
information refer to:
Type SR5 instruction manual (form 5786,
D103099X012).
P.E.D. Categories
This product may be used as a pressure accessory with
pressure equipment in the following Pressure Equipment
Directive 97/23/ EC categories. It may also be used
outside of the Pressure Equipment Directive using sound
engineering practice (SEP) per table below.
PRODUCT SIZE CATEGORIES FLUID TYPE
DN 15, 20, and 25 (1/2 thru 1-inch) SEP
1
DN 40 x 25, 40, and 50
(1-1/2 x 1, 1-1/2, and 2-inch) I
DN 80 (3-inch) II
Specications
Available Constructions
Type SR5: Pressure reducing regulator designed for
use in sanitary applications. DN 15, 20, 25, 40 x 25,
50, and 80 (1/2, 3/4, 1, 1-1/2 x 1, 2, and 3-inch) body
sizes are suitable for controlling steam, liquids and
gasses. DN 40 (1-1/2-inch) is suitable for steam and
gasses, it is not for use on liquids. End connections
match up to Tri-Clamp® sanitary ttings.
Maximum Inlet and Outlet Pressures(1)
DN 15 to 40 (1/2 to 1-1/2-inch):
14,5 bar at 65 °C (210 psig at 150 °F)
12,4 bar at 135 °C (180 psig at 275 °F)
11 bar at 204 °C (160 psig at 400 °F)
DN 50 and 80 (2 and 3-inch):
Maximum Inlet Pressure:
14,5 bar at 65 °C (210 psig at 150 °F)
12,4 bar at 135 °C (180 psig at 275 °F)
11 bar at 204 °C (160 psig at 400 °F)
Maximum Outlet Pressure:
10,3 bar at 65 °C (150 psig at 150 °F)
8,62 bar at 135 °C (125 psig at 275 °F)
7,58 bar at 204 °C (110 psig at 400 °F)
Proof Test Pressure
All Pressure Retaining Components have been
proof tested per Directive 97/23/EC - Annex 1,
Section 7.4
Outlet Pressure Ranges(1)
DN 15, 20, 25 and 40 x 25 (1/2, 3/4, 1 and
1-1/2 x 1-inch): 0,2 to 0,5 bar (2 to 8 psig), 0,4
to 1,7 bar (5 to 25 psig), 0,7 to 3,4 bar (10 to
50 psig), 1,7 to 6,2 bar (25 to 90 psig), and 2,4
to 9,3 bar (35 to 135 psig)
DN 40 (1-1/2-inch): 0,4 to 1,7 bar (5 to 25 psig), 0,7
to 3,4 bar (10 to 50 psig), 1,7 to 5,2 bar (25 to 75
psig), and 2,4 to 6,9 bar (35 to 100 psig)
DN 50 and 80 (2 and 3-inch): 0,7 to 1,7 bar (10 to
25 psig), 1,0 to 3,4 bar (15 to 50 psig) and 1,7 to
5,2 bar (25 to 75 psig)
Temperature Capabilities(1)
Metal Seat (316L SST)
Ethylenepropylene (EPDM) Diaphragm and O-ring:
-28 to 135 °C (-20 to 275 °F)
316L SST Diaphragm and PTFE/FKM O-ring:
-6 to 204 °C (20 to 400 °F)
PTFE/FKM Diaphragm and O-ring:
-6 to 204 °C (20 to 400 °F)
Soft Seat (PTFE/316L SST)
Ethylenepropylene (EPDM) Diaphragm and O-ring:
-28 to 65 °C (-20 to 150 °F)
316L SST Diaphragm and PTFE/FKM O-ring:
-6 to 65 °C (20 to 150 °F)
PTFE/FKM Diaphragm and O-ring:
-6 to 65 °C (20 to 150 °F)
PEEK Seat (PEEK/316L SST)
Ethylenepropylene (EPDM) Diaphragm and O-ring:
-28 to 135 °C (-20 to 275 °F)
316L SST Diaphragm and PTFE/FKM O-ring:
-6 to 204 °C (20 to 400 °F)
PTFE/FKM Diaphragm and O-ring:
-6 to 204 °C (20 to 400 °F)
1. The pressure/temperature limits in this installation guide and any applicable standard or code limitation should not be exceeded.

2
Type SR5
Installation
Only qualied personnel should install or
service a regulator. Regulators should
be installed, operated, and maintained
in accordance with international and
applicable codes and regulations, and
Fisher instructions.
If the regulator vents uid or a leak
develops in the system, it indicates that
service is required. Failure to take the
regulator out of service immediately may
create a hazardous condition.
Personal injury, equipment damage, or
leakage due to escaping uid or bursting of
pressure-containing parts may result if this
regulator is overpressured or is installed
where service conditions could exceed the
limits given in the Specications section,
or where conditions exceed any ratings of
the adjacent piping or piping connections.
To avoid such injury or damage, provide
pressure-relieving or pressure-limiting
devices (as required by the appropriate
code, regulation, or standard) to prevent
service conditions from exceeding limits.
Additionally, physical damage to the
regulator could result in personal injury
and property damage due to escaping
uid. To avoid such injury and damage,
install the regulator in a safe location.
Clean out all pipelines before installation of the regulator
and check to be sure the regulator has not been damaged
or has collected foreign material during shipping. Use
suitable line gaskets and approved piping and bolting
practices. Install the regulator in any position desired.
However, to ensure self-draining (from outlet to inlet) the
regulator should be installed with the spring case in the
upright vertical position. The arrow on the body indicates
ow direction.
Note
It is important that the regulator be
installed so that the vent hole in the
spring case is unobstructed at all times.
Overpressure Protection
The recommended pressure limitations are stamped
on the regulator nameplate. Some type of overpressure
protection is needed if the actual inlet pressure
exceeds the maximum operating outlet pressure rating.
Overpressure protection should also be provided if the
regulator inlet pressure is greater than the safe working
pressure of the downstream equipment.
Regulator operation below the maximum pressure
limitations does not preclude the possibility of damage
from external sources or debris in the line. The
regulator should be inspected for damage after any
overpressure condition.
Startup
The regulator is factory set at approximately the
midpoint of the spring range or the pressure requested,
so an initial adjustment may be required to give the
desired results. Make sure the CIP/SIP Pin (key 30,
Figure 1) is not installed in the spring case. With
proper installation completed and relief valves properly
adjusted, slowly open the upstream and downstream
shutoff valves.
The CIP/SIP pin must be removed before
regulator is placed in operation. The
pin will inhibit the proper operation and
function of the regulator and result in
overpressure of the downstream system.
Adjustment
To change the outlet pressure, remove the closing cap
or loosen the locknut and turn the adjusting screw or
handwheel clockwise to increase outlet pressure or
counterclockwise to decrease pressure. Monitor the outlet
pressure with a test gauge during the adjustment. Replace
the closing cap or tighten the locknut to maintain the
desired setting.
Pressure Loaded Construction
The spring case can be pressure loaded to adjust outlet
pressure. An optional tapped spring case, guide ring seal
and sealing washer on the adjusting screw must be used
for these applications. The loading pressure is connected
to the 1/4-inch NPT connection in the spring case
allowing registration on the spring side of the diaphragm.
Adjusting loading pressure will proportionally change the
outlet pressure setting of the regulator. A small amount of
mechanical spring load, in addition to the pressure load, is
recommended. Regulator set pressure achieved from the
combination of spring load and pressure load should not
exceed the outlet pressure ranges listed on page 1.
Taking Out of Service (Shutdown)
To avoid personal injury resulting from
sudden release of pressure, isolate
the regulator from all pressure before
attempting disassembly. Relieve all spring
compression and isolate regulator from the
pressurized system prior to removing the
clamp (key 15, Figure 1).

3
Type SR5
6
7
6
9
14
15
1
STANDARD REGULATOR WITH ELASTOMERIC DIAPHRAGM
VIEW B — METAL DIAPHRAGM FOR STANDARD REGULATOR
SOFT SEAT OPTION
VACUUM PROTECTION OPTION
T-HANDLE OPTION
Figure 1. Type SR5 Sanitary Regulator Assembly
Parts List
Key Description
1 Body
2 Plug (metal seat)
3 Plug O-Ring
4 Diaphragm Plate O-Ring
5 Piston Ring
6 Diaphragm Gasket
7 Diaphragm
8 Lower Spring Seat
9 Guide Ring
10 Diaphragm Plate
11 Upper Spring Seat
12 Spring
13 Inner Spring
14 Spring Case
15 Bolted Clamp
16 Hex Nut
17 Hex Nut
18 Adjusting Screw
19 Closing Cap
22 Locking Lever
23 Flat Washer
24 Lock Washer
26 Upper Plug
27 Lower Plug
28 Soft Seat
30 Ring Grip Pin
31 Bead Chain
Key Description

Type SR5
The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher is a mark owned by Fisher Controls, Inc.,
a business of Emerson Process Management.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties
or guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specications
of such products at any time without notice.
Emerson Process Management does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any
Emerson Process Management product remains solely with the purchaser.
©Fisher Controls International, Inc., 2004, 2006; All Rights Reserved
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For further information visit www.emersonprocess.com/regulators