Elster SR113 Instruction Manual

SR100 Series Service Regulators

Instruction Manual

SR100 Series Service Regulators 02 Elster American Meter

SR100 Series Service Regulators

General Information

The SR113 Service Regulator comes
equipped with a full capacity internal
relief valve and features a 3/4" or 1" NPT
threaded vent.

Available 180° valve body sizes: 3/4" x
3/4", 3/4" x 1" and 1" x 1" NPT or BSP-TR.

Available 90° valve body sizes: 3/4" x 3/4",
3/4" x 1" and 1" x 1" NPT or BSP -TR.

Offset valve body sizes: 3/4" x 3/4", 3/4" x 1"
and 1" x 1" NPT or BSP-TR.

Regulator Pressure Ratings

WARNING

!

G

To prevent regulator damage
and possible personal injury,
pressures must not exceed:

Maximum inlet pressure,
normal service (P

): Depending

1

on orifice size, up to 125 PSIG
(see Table 3 on page 4).

Maximum outlet pressure,
normal service (P

): Depending

2

on spring selection, up to 2
PSIG (see Table 1 on page 3).

Maximum inlet pressure for
abnormal or emergency service
without causing damage to
regulator case is 175 PSIG.

Maximum outlet pressure which
can be contained by pressure
carrying components (no flange
leakage to atmosphere except
for normal relief action) is 10
PSIG. Remove from service if
regulator is subjected to this
condition.

Maximum outlet pressure
for abnormal service without
damage to internal components
is 50 PSIG. Remove from service
if regulator is subjected to this
condition.

Applications

Model Number Description

SR113

Preparations

WARNING

!

Do not connect the inlet of the
regulator to a pressure source
higher than recommended
in Table 3 on page 4. Never
connect the regulator outlet to
the pressure source. Observe
the flow direction arrow on the
valve body. Some additional
form of overpressure protection
may be required In applications
where downstream maximum
pressure ratings are less than
the regulator inlet pressure

Install, operate, inspect and
maintain the regulators as
outlined in the following
instructions and in accordance
with your company's policies
and applicable federal,
state, and local codes and
laws. Failure to follow these
instructions may result in
damage to the regulator or
personal injury.

Check installation location for 1.
suitability. Physical changes may
have been made to the building site
since the original installation.

Examine regulator for shipping damage.2.

Check regulator and piping for foreign 3.
matter which may have accumulated
during shipment or handling.

Basic regulator, full-capacity internal relief with 3/4"
or 1" NPT vent.

Check regulator information stamped 4.
on seal plug to determine if regulator is
suitable for intended service (see Item
14, page 3).

Suitable stop valve(s) should be 5.
installed and conveniently located.

Filters are available from Elster 6.
American Meter for applications
where pipeline contaminants are
believed to be present.

Regulators may be used at 7.
temperatures between -20°F and
+150°F (-30°C and +65°C).

SR100 Series Service Regulators 03 Elster American Meter

Figure 1

5

Model

Orifice Size

Spring Range

Date Code

Yr/Wk Mfg.

14

22

18

4

9

6

11

21

3

23

2

16

17

1

15

20

19

Disc, Valve Seat

1

Seal Ring, Valve Body

2

Diaphragm

3

Screw, Diaphragm Case

4

Bolt, Valve Body

5

Spring, Pressure (Table 1)

6

Valve, Orifice (Table 2)

7

Diaphragm Case

8

Screw, Pressure Adjustment

9

Stem, Relief Valve

10

11

Retainer, Relief Valve Spring

12

Lever

7

12

13

Pin, Lever

Plug, Seal

14

Spring, Relief Valve

15

Guide, Valve Plunger

16

17

Plunger, Valve

Assembly, Top

18

Valve, Body

19

Plate, Diaphragm

20

Screen, Vent

21

22

Gasket, Seal Plug

23

Nut, Valve Body

13

Table 1

Pressure Spring

Outlet

Pressure

6" to 8" W.C.

7" to 12" W.C.

13" to 16" W.C.

21" to 35 W.C.

2 PSIG

Color
Code

Blue/Yellow 70017P138

Blue/Red 70017P139

Blue/White 70017P140

Blue/Orange 70017P141

White 70017P060

Table 2

Orifice

Orifice Size

5/16" 72494P022

1/4" 72494P021

3/16" 72494P020

1/8" x 3/16" 72494P030

8

10

Part

Number

Standard

Part Number

7