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GENERAL INFORMATION
The American Meter
1213B pressure regulator is designed for natural
gas applications and features a compact, lightweight
design for fast, easy installation. Interchangeable orifices
and springs provide a wide range of outlet pressures
and flow rates. Outlet pressures between 3.5"
W.C. and 5 PSIG are available. Operating temperature
range is -20° F to 150° F
(-30° C to 65° C).
The diaphragm case may be easily removed for
routine inspection without disturbing the line connections.
All models conform to ANSI Code B31.8c-1994, and
CGA Service-type Regulator Specification CAN/CGA-6.18-M95.
EXCLUSIVE, 7 - STEP CORROSION
PROTECTION
The protective finish on
the 1213B regulator resists corrosive effects of
weather and harsh environments better than any
other in the industry. Each precision die cast
aluminum regulator is treated-inside and out-with a
special conversion coating that's part of an exclusive,
7-step finishing process. This coating greatly inhibits
oxidation of the metal's surface that can eventually
compromise the integrity of the metal. It
also prevents finish paint from cracking and blistering.
Baked-on, hybrid epoxy powder paint and a tough,
protective vinyl acrylic topcoat add long-lasting protection
to all exterior regulator surfaces. The American Meter
conversion coating process meets all environmental protection
regulations.
HIGH TENSILE STRENGTH VALVE BODIES
Each 1213B regulator is
equipped with a high tensile strength cast iron valve
body that rotates in 90-degree increments and
features extra heavy wall thickness. This provides
maximum strength to withstand installation stresses without
damage and prevents thread galling experienced with
aluminum.
1213B regulator valve bodies are treated with
a 5-step metal finishing process. The treated metal is
then primed with an epoxy paint and finished
with a tough vinyl acrylic topcoat.
For available valve body sizes see table 1.
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APPLICATION
The 1213B features a
full capacity internal relief valve with large passages
to assure the fast release of gas .
For added protection, a secondary relief valve stop
is provided to assure operation under the most
severe conditions and in the event the seal
plug has been removed. The standard relief spring
setting is 7.0" W.C. above the normal 7"
W.C. outlet pressure. The relief point for a 2 psig outlet spring is 1.6
psig above the outlet pressure.
Valve body configuration
permits the 1213B regulator to be supplied in
four positions. All 1213B regulators are available with
either right angle (90-degree) or straight flow (180-degree)
valve bodies. Vents can also be supplied in
four different positions.
The 1213B regulator is designed with an extra
large, removable weather and bug-proof stainless steel
screened vent to resist freeze-ups and to exclude
foreign matter. The vent is threaded 3/4 inch
NPT making it suitable for indoor installations.
The regulator vent opening should face downward to minimize the chance of of blockage from
ice and snow. If not, a 90-degree vent elbow (Part number 78041P025) and separate
protective screen (Part number 70400P017) may be screwed into the vent to provide the
necessary protection.
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