American Meter Company 1213B2 Series Instruction Manual

IM-8705.6
1213B2 Series
Service Regulators
Operating Instructions Manual

1213B2 Series Service Regulators
2. Check installation location for suitability. It is possible that
physical changes have been made to the building site
since the regulator and location were originally selected.
3. Examine regulator for shipping damage.
4. Check regulator and piping for foreign matter which may
have accumulated during shipment or handling.
5. Check seal plug information to determine if regulator is
suitable for intended service.
6. Suitable stop valve(s) should be installed and should be
conveniently located.
7. ilters are available from American Meter for applications
where pipeline contaminant’s are suspected to be present.
8. Regulators may be used at temperatures between -20˚
and +150˚ (-30˚ C and +65˚ C).
Installation:
Warning:
Inside Installation:
Will require a vent line of sufficient diameter to carry gas vented by the
regulator to a safe outside location away from any opening in the
building. The 121 B2 is provided with a /4" vent for the connection of a
vent line. Do not thread a pipe into the vent more than 7 turns so as not
to block the vent flapper.
Outside Installation:
Will require that care be taken to prevent vent opening from freezing
closed or becoming blocked or permitting water to enter from any
cause. Particular consideration should be given to sites where flooding,
snow, or freezing rain may be experienced. The vent or vent line port
should point vertically downward and overhead protection should be
used where necessary.
(The numbers in parentheses refer to figure 1, page 3.)
1. Remove all shipping plugs.
2. Use good piping practice. Be sure piping and regulators
are free of dirt, pipe dope and other debris. Apply pipe
dope to male threads only.
3. Install regulator. Make certain it is piped correctly with inlet
pipe connected to the inlet regulator connection and flow
is in the direction as indicated by arrow located on valve
body (19). The vent should be positioned to prevent entry
of water and debris. American Meter recommends that the
vent face downward. By removing the four bolts (5), the
regulator body (8) may be rotated in 90 degree
increments in relation to the valve body (19). Replace and
tighten the bolts (5). Inside Installations - A regulator
installed within a building should be located as near as
practical to the point of service line entrance.
4. Turn gas on slowly. If an outlet stop valve is used, it
should be open first. Do not overload the diaphragm with
a sudden surge of inlet pressure.
5. Assure that there are no leaks and all connections
are tight.
6. The 1213B2 regulator is preset at the factory with the
diaphragm in the horizontal position and should not
require any adjustment if installed in that position. The
outlet pressure may vary as much as 0.5" W.C. if the
diaphragm is in the vertical position. Should you wish to
adjust the set pressure in position, perform the following:
(a) Turn gas off and depressurize the system.
Preparations:
Caution:
Do not connect the inlet of the regulator to a normal pressure source
higher than that recommended. Never connect the regulator outlet to
the source of pressure. Observe the flow direction arrow on the valve
body. If inlet pressure can exceed the maximum regulator outlet
pressure
rating, some form of overpressure protection in addition to internal
relief may be required. To prevent damage to the regulator and possible
personal injury, inlet and outlet pressures must not exceed the regulator
pressure rating stated on page 4.
1. Install, operate, inspect and maintain the regulator as
outlined in the following instructions and in accordance
with your company's policies and applicable federal, state
and local codes and laws. ailure to follow these
instructions may result in damage to the regulator.
Orifice Size Part Number
5/16" 72494P022
1/4" 72494P043
3/16" 72494P042
1/8" 72494P040
1213B2 General Information:
The 1213B2 is a standard service regulator with full capacity
internal relief and comes standard with a 3/4" vent.
Available 180° valve body sizes: 3/4" x 3/4", 3/4" x 1" and
1" x 1" NPT or BSP-TR.
Also available 90° valve body sizes: 3/4" x 3/4", 3/4" x 1",
1" x 1" and 1/2" x 1" NPT or BSP-TR.
Maximum inlet pressure, normal service (P1): Depending on
orifice size, up to 125 PSIG.
Maximum outlet set pressure, normal service (P2): Depending
on spring selection up to 5 PSIG (138" W.C.).
Orifice Sizes
See brochure SB-8506 for maximum inlet recommendations
and capacity performance for each orifice size.
Pressure Spring
Outlet Pressure Color Code Part Number
1213B2
3.5" to 7" W.C. Light Blue 70017P083
5" to 9" W.C. Lavender 70017P084
6" to 15" W.C. Light Gray 70017P088
18" to 2 PSIG Light Green 70017P085
2 to 4 PSIG Pink 70017P086
4 to 5 PSIG Turquoise 70017P087
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1213B2 Series Service Regulators
4. Inspect the surface of the valve seat disc (1). If it is
scored or uneven replace it as outlined in the
Maintenance instructions.
5. Install new seal ring (2) in the diaphragm case groove.
6. Inspect unit for cleanliness and proper positioning of the
parts. Pay particular attention to the proper positioning of
the seal ring (2) in the groove.
7. Install the diaphragm case (8) on the valve body (19).
Make sure the vent is pointed downward. Replace and
tighten the valve body bolts (5).
8. Proceed to Steps 4, 5 and 6 of the installation instructions.
Caution:
Regulators are pressure control mechanisms having numerous moving
parts which can wear. In addition, regulator damage may occur from
external sources. For these reasons, the regulator should be
periodically inspected and checked for proper operation. The frequency
of inspection will depend on the severity of the service conditions and
the requirements of applicable local, state and federal codes and
regulations.
Maintenance:
(Numbers in parentheses refer to figure 1.)
Replacing Seat Disc:
1. Carefully insert the tip of a knife along the edge of the
seat disc (1) and lift the seat disc out of the plunger (17).
2. Install a new seat disc (1) into the plunger (17), by
pressing into place. Make sure that the disc is pressed
completely into the plunger (17).
3. Proceed to Steps 5, 6, 7 and 8 of the Inspection
Instructions.
Caution:
Handling and Disposal
"As a knowledgeable user of American Meter’s products, we are sure
that you are aware that parts in the Company’s meters and regulators
contain or are coated with heavy metals such as cadmium, zinc, lead
and chromium. Obviously, therefore, repair or refurbishment of this
equipment should take into account the presence of these materials and
should comply with all state and federal requirements concerning
worker protection, proper disposal and safety, including protection
against exposure to dust and fumes."
(b) Install outlet pressure gauge. Remove seal plug (14).
( ) Turn gas on slowly.
(d) Establish a low flow rate - 45 to 55 SC H.
(e) Turn pressure spring adjustment screw (9) clockwise
to increase outlet pressure or counterclockwise to
decrease outlet pressure.
(f) Establish the set pressure within the range limits of
the pressure spring used.
(g) To test for the regulator's ability to fully shut off (lock-
up), shut off all flow downstream of the regulator. At
lock-up, the outlet pressure will be somewhat higher
than the set pressure. However, if the pressure
continues to rise after 3 seconds, the regulator must
be repaired. Observe for 30 seconds.
(h) When the set pressure has been properly adjusted,
depressurize and remove gauge(s) and lines.
(i) Replace seal plug (14).
(j) Pressurize and check all connections for leaks.
Inspection:
(Numbers in parentheses refer to figure 1.)
Inspection and maintenance of the 1213B2 has been
simplified for practical reasons. Repair parts are offered if
maintenance of the regulator is required.
Inspection of the valve seat disc (1) and orifice valve (7) may
be performed in the field. ollow the procedure described
below. Care should be exercised to prevent foreign matter
from entering the regulator.
Procedure for Inspection of Valve Seat Disc and Orifice
1. Shut off gas supply and depressurize the regulator
system.
2. Remove four bolts (5) securing the diaphragm case (8) to
the valve body (19) and separate the diaphragm case
from the valve body.
3. Visually check the seating edge of the orifice (7). If it is
nicked or damaged, it should be replaced with a new
orifice to provide proper shutoff. See Maintenance
instructions for replacing the orifice.
Figure 1 (1213B2 Regulator)
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18
21
8
101220
132
7
19
17
116
43
11
15
6
5
Item Description Item Description
No. No.
1 Disc, Valve Seat 12 Lever
2 Seal Ring, Valve 13 Pin, Lever
Body
3 Diaphragm Assembly 14 Plug, Seal
4 Screw, Diaphragm 15 Spring, Relief
Case Valve
5 Bolt, Valve Body 16 Guide, Valve
Plunger
6 Spring, Pressure 17 Plunger, Valve
7 Valve, Orifice 18 Assembly, Top
8 Diaphragm Case 19 Valve, Body
9 Screw, Pressure 20 Screw, Lever Pin
Adjustment
10 Stem, Relief Valve 21 Screen, Vent
11 Retainer, RV Spring
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PCG/5000/12-02 P 06-99
300 Welsh Road, Building One
Horsham, PA 19044-2234
Phone: [phone]
Fax [phone]
www.americanmeter.com
Yesterday…Today…Tomorrow 275 Industrial Road
Cambridge, Ontario
Canada N3H 4R7
Phone: [phone]
Fax [phone]
www.americanmeter.com
American Meter Company has a program of continuous product development and improvement and, therefore,
the information in this bulletin is subject to change or modification without notice.
1213B2 Series Service Regulators
Dutch Council
for Accreditation
AMC Quality System
QMI is Accredited by:
ISO 9001 Certified
Certificate #006697
ANSI RAB
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Replacing Orifice:
(The numbers in parentheses refer to figure 1, page 3.)
Caution:
Regulators that have an orifice size change different than shown on the
seal plug or tag must have their set pressure reestablished. Mark new
orifice size and set pressure on the regulator seal plug or on its tag.
1. Shut off gas supply and depressurize the regulator
system.
2. Remove four bolts (5) securing the diaphragm case (8) to
the valve body (19). Place the diaphragm case aside and
protect the seat disc from dirt particles.
3. Remove the orifice valve (7) with a 7/8" hex socket
wrench.
4. Sparingly apply Henkell G30 or Loctite "Stainless Steel
PST" thread sealant or equivalent (not supplied) to the
new orifice threads.
5. Carefully start the threads of the orifice into the valve body
and tighten to specification in Table 3. Care must be taken
to prevent nicking the orifice.
6. Proceed to Steps 5, 6, 7 and 8 of the Inspection
Instructions.
Replacing Pressure Spring:
(The numbers in parentheses refer to figure 1, page 3.)
Caution:
Regulators that have a pressure spring removed or replaced must have
their set pressure reestablished. If the pressure spring is different from
that shown on the seal plug or tag, mark spring range on the regulator
seal plug or on its tag, and cross out the old value.
1. Shut off gas supply and depressurize the regulator
system.
2. Remove seal plug (14).
3. Unscrew pressure adjusting screw (9) with a 3/8"
screwdriver and remove the pressure adjusting
screw completely.
4. Remove the pressure spring (6). Install new pressure
spring.
5. Replace the pressure adjusting screw and turn adjusting
screw to about mid position.
6. Proceed to Steps 4, 5 and 6 in Installation Instructions.
Torque Specifications
Regulator Pressure Rating
125 PSIG = Maximum recommended inlet pressure for normal service. Maximum recommended pressure may vary with orifice size.
175 PSIG = Maximum inlet pressure for abnormal or emergency service, without causing damage to regulator case.
5 PSIG = Maximum outlet pressure for normal service.
10 PSIG = Maximum outlet pressure which can be contained by pressure carrying components (no flange leakage to atmosphere
except for normal relief action). If regulator is subjected to these conditions, it should be removed from service.
50 PSIG = Maximum outlet pressure for abnormal service without damage to internal components. If regulator is subjected to
these conditions, it should be removed from service.
Component Torque
Screw (Diaphragm Housing 25-50 in-lb
lange)
Orifice Valve 300 ±100 in-lb
Bolt (Valve Body) 100 ±25 in-lb
Seal Plug 15 in-lb
Screw (Lever Pin) 20 ±5 in-lb
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