Product Overview
Elster diaphragm gas meters provide high‑precision positive displacement measurement for natural gas and technical gases across residential, commercial, and industrial applications. Their multi‑chamber diaphragm design, reinforced flag rods, and wear‑resistant phenolic valves ensure smooth operation, long service life, and excellent accuracy retention. Models such as the AC‑800 and AL‑800 deliver capacities up to 800 SCFH, with optional temperature compensation, AMR/AMI compatibility, and pressure‑compensating indexes. BK‑series meters (G4–G25) comply with EN 1359 and offer low noise, low pressure loss, and robust synthetic diaphragms. With proven long‑term stability and numerous configuration options, Elster diaphragm meters provide reliable custody‑transfer gas measurement across the utility sector.
Elster Diaphragm Gas Meter
| Feature | Specification |
|---|---|
| Product Type | Positive displacement diaphragm gas meter |
| Measurement Principle | Four‑chamber diaphragm displacement with valve synchronization (pneumatic control) |
| Media | Natural gas, air, propane, butane, inert gases |
| Flow Ranges | From 0.25 m³/h up to 40 m³/h (BK series) and up to 800 SCFH+ for AC/AL industrial series |
| Accuracy | High accuracy and long‑term linearity; ANSI B109.1/B109.2 and EN 1359 compliant |
| Temperature Compensation | Optional mechanical temperature compensation −30°C to +60°C (depending on model) |
| Operating Pressure | Up to 0.5 bar (BK), 20–100 psig for AL/AC industrial meters |
| Construction | Die‑cast aluminum case, molded diaphragms, reinforced flag rods, graphite‑filled phenolic valves |
| Outputs | Pulse outputs, odometer/pointer index, AMR/AMI capable, pressure‑compensating index options |
| Approvals | ANSI B109, EN 1359, MID, Measurement Canada; custody‑transfer compliant |
| Applications | Residential, commercial, industrial gas measurement, utilities, HVAC, gas supply monitoring |
