ISTEC CORPORATION
Flow Measurement & Control
5 Park Lake Road, Unit 6
Sparta, NJ 07871 USA
Tel 973-383-9888
Fax 973-383-9088
Email

OFFICE HOURS

Monday thru Friday
8:00am to 5:00pm
Eastern

Request

Ask for ISTEC's Catalog on Disc

ISTEC's Catalog on Disc

We Accept

We Accept MasterCard, Visa and American Express

Last Update:

 Model 2000 Gallus Diaphragm Gas MeterModel 2000 Gallus Diaphragm Gas Meter

OPERATING PRINCIPLE & USE

The Gallus 2000 uses the positive displacement diaphragm principle. Its design consists of a twin-chamber diaphragm-measuring unit. The twin chambers are each fitted with a flexible and gas-tight diaphragm, which move by the differential inlet and outlet pressure. A transmission system with a rotating mono-valve, and a valve system, transfer the reciprocating motion, driving the mechanical retrofittable index. The whole measuring system is contained in a robust gas-tight casing. The construction and the operation design of this meter make the Gallus 2000 an extremely reliable and accurate product.

The Gallus 2000 is made to measure accurately the volumes of natural gas (and LPG) used for domestic appliances. Please consult us for any other type of gas.

The Gallus 2000 is made to measure accurately the volumes of natural gas to 211 ft3/h (and LPG) used for domestic appliances. Please consult us for any other type of gas.

Typical Regulation Curve

Typical regulation curve

  • Over 15 millions
  • installed worldwide
  • Compact size
  • Broad Metrological Performance: G 1.6 - G 2.5 - G 4
  • High Accuracy and Long Term Reliability
  • Not Susceptible to Contamination (Glycol Dust Test)
  • Low Noise Level
  • Fire Resistant Construction
  • EEC Approval and More than 25 National Approvals
  • Version Ready for Remote Reading
  • Versions for Budget Metering
  • Utility Logo and Customized Bar Code by Laser Marking
  • Index in Cubic Feet
  • Connection with Pressure Test Nipple
  • Large Range of Inlet and Outlet Connections (ISO, DIN, BSP, ASA... etc.)
  • Radio Communication Module
  • Prepayment Version
mbar graph
Size Natural Gas
d = 0.6		 Air Propane Butane
G 1.6 0.4 mbar 0.55 mbar 0.7 mbar 0.85 mbar
G 2.5 0.6 mbar 0.8 mbar 1.3 mbar 1.6 mbar
G 4 1 mbar 1.5 mbar 2.5 mbar 3.2 mbar
  • Retrofittable Pulse Transmitter
  • Meter Bars for Two-pipe Meters
  • Valves, Pipe Connections, Installation Cabinets
  • Domestic Governors and Safety Cut-off Valves
  • Maps Radio Frequency and Telephone Meter Reading System
  • Measuring Range (G 4, G 2.5, G 1.6)
  • Case Material and Working Pressure
  • Connection Spacing and Size
  • Specific Markings (logo, bar code, others)
Model 2000 Gallus Diaphragm Gas Meter
with an Aluminum Body		 Model 400g Gallus Diaphragm Gas Meter
Model 2000 Gallus Diaphragm Gas Meter with an Aluminum Body
Model 400g Gallus Diaphragm Gas Meter
Meter Case Material
A
B
C
D
E
Weight
Connection Threads
According to ISO 228
(Consult us for any other connection)
Steel
4.30"
8.9"
2.6"
7.4"
6.5"
3.2 lbs
3/4" NPT

Dimensional Drawing of Model 2000 Gallus Diaphragm Gas Meter

Please Contact Us for Other Requests
Use
 Natural gas and LPG (please consult us for any other type of gas)
Cyclic Volume
 0.42 ft3
Operating Temperature
 -4°F to +104°C *
Storage Temperature
 -40°C to +140°C *
Maximum Operating Pressure
 7.25 psi for standard steel case meter
Measuring Range
 G 1.6 Qmin 0.57 ft3/h Qmax 88 ft3/h
G 2.5 Qmin 0.88 ft3/h Qmax 141 ft3/h
G 4 Qmin 1.4 ft3/h Qmax 211 ft3/h
Operational Pulse Generator
 Standard 1 ft3/ pulse
Pulse Transmitter
 Retrofittable LF-system, 12V DC max
10mA max, standard 1 ft3/pulse
Wire fixation by jack plug or connecting block

* PLEASE CONTACT US FOR TEMPERATURES OUTSIDE OF THIS RANGE

Download PDF Version • Download Installation Manual