Elster 1800B2, 1800B2-HC User Manual

SB-8510.4

Measurement Engineers Since 1836

www.americanmeter.com

1800B2 & 1800B2-HC

Service Regulators

Maximum Inlet Pressure 125 PSIG

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AMC Quality System

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ISO 9001 Certified

Certificate #006697

ANSI RAB

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against downstream overpressure. Models 1853B2 and
1893B2 also include an underpressure shut-off (UPSO)
that provides protection in the event of an upstream failure.
Valve body configuration permits the 1800B2 Series regu­lators to be supplied in four positions as specified on page

7. All Series 1800B2 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.

All models are 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 or 1 inch NPT and is also available with BSP­TR threads making it suitable for indoor installations.

Options

Vent Elbow- The regulator vent opening should face down­ward (6 o'clock)to minimize the chance of blockage from
ice and snow. If not, a 3/4" NPT plastic, 90˚ vent elbow
(Part number 78041P025) and separate protective screen
(Part number 70400P017) may be screwed into the vent to
provide the necessary protection.

Elevation Compensation- E.C. orifices are also available,
which provide constant outlet pressure even when inlet
pressure fluctuates greatly. The elevation compensation
orifice is a device which reduces changes in regulator
outlet pressure due to change in inlet pressure.

The E.C.orifice is recommended for installations where the
inlet pressure may vary over a wide range.The E.C. orifice
is available in two sizes: 1/8" x 3/16" (Part number
73698G006) and 3/16" (Part number 73698G005). Its
capacity is the same as a standard orifice of the same size.
Consult your American Meter Sales Representative for
specific applications.

① AC-250 Meter ➁ 1813B2 Regulator

2

1800B2 Service Regulators

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General Information

The American Meter Series 1800B2 pressure regulators are
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 2 PSIG are available. Operating temperature
range is -20˚ F to 150˚ F (-30˚C to 65˚C). Maximum flow rate
is 2500 SCFH (70.8 m3/h).

The diaphragm case may be easily removed for routine
inspection without disturbing the line connections. All mod­els conform to ANSI Code B109.4-1998, and CGA Service­type Regulator Specification CAN/CGA-6.18-M95.

Exclusive, 7 - Step Corrosion
Protection

The protective finish on the Series 1800B2 regulators
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, 7­step 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.
A single coat polyester primer and the high solid
polyurethane top coat provides a 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 Series of 1800B2 regulator is equipped with a high
tensile strength cast iron valve body that rotates in 90­degree increments and features extr a hea vy w all thic kness.
This provides maximum strength to withstand installation
stresses without damage and prevents thread galling
experienced with aluminum.

Series 1800B2 regulator valve bodies are treated with a 5­step metal finishing process. The treated metal is painted
with a single coat polyester paint.

Available valve body sizes are: 3/4" x 3/4", 3/4" x 1",
3/4" x 1-1/4", 1" x 1", 1" x 1-1/4" and 1-1/4" x 1-1/4" NPT or
BSP-TR. Also available is a offset valve body in 3/4" x
3/4", 3/4" x 1" and 1" x 1" NPT or BSP-TR.

Application

Models 1813B2, 1833B2, 1843B2 and 1853B2 features a
full capacity internal relief valve with large passages to
assure the fast release of gas (See performance graphs on
page 6). For added protection, a relief valve stop is provid­ed to assure operation under the most severe conditions.
The standard relief spring setting is 8.0" W.C. above the
normal 7" W.C. outlet pressure.

Models 1843B2, 1853B2, 1883B2 & 1893B2 are equipped
with overpressure shut-off (OPSO) that provides protection

1813B2-HC-180˚ Dimensions

1843B2-HC Dimensions

3

1800B2-HC Service Regulators

General Information

Ideal for light commercial and industrial use, the 1-1/4"
1800B2-HC Series regulator is designed to increase output
capacity and lessen compounding during medium- to high­inlet pressure operations. Compounding usually occurs
when a larger valve body introduces undesirable flow
characteristics, thereby creating an inefficient, boosting
effect in the outlet port of the body.
The 1800B2-HC regulator’s lightweight design features
high-capacity capabilities for 1-1/4" NPT connections and
flow capacities up to 4600 SCFH depending on inlet
pressure and orifice selection. It complements the 1800B2
Series family of regulators.
A lightweight regulator designed to increase capacity out­put and minimize the outlet boosting effect that is typical
from a larger valve body.
All models conform to ANSI Code B109.4-1998 and CGA
Service-type Regulator Specification CAN/CGA-6.18-M95.

① AC-630 Meter ➁ 1813B2-HC Regulator

1-3/16"

2"

1-15/16"

4-1/8"

7-1/4"

3-5/8"

3-5/8"

7-1/4"

4-1/8"

2"

4-1/2"

8-15/16"

1813B2-HC 1843B2-HC

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