Smart Meter Valves

Product catalog summary

Overview: The document provides technical specifications and performance data for the Saia GM Gas Valve product line, designed for smart meters. It includes models GMC, GMS, and GMI, each with specific features.

Characteristics: The gas shut-off valve operates with zero pressure drop, suitable for smart meters. It is designed to handle an operating pressure of 30 mbar and a maximum pressure of 500 mbar.

Performance Data:

General: External leakage is less than 1 liter at 75 mbar and less than 5 liters at maximum pressure. Internal leakage is less than 50 ml at 10 mbar. The flow rate is up to 10 m³/h for G4 and G6 meters, with a pressure drop of less than 0.1 mbar at 10 m³/h and 100 mbar. The closing speed is under 11 seconds at 50 Hz.
Electrical: The nominal voltage ranges from 2.8 V to 3.6 V, with a winding resistance of 34 Ohm ±10% per phase. Inductance is 41.7 mH ±10% per phase at 1000 Hz sine wave, 1 V. Energy consumption is ≤ 4 Ws at nominal voltage during the closing cycle. The ATEX classification is II 3G EX ic IIA T3.

Standards and Compliance: The valve complies with EN 1359: 2007 for resistance to gas and vapor, EN 60079-0: 2006, and EN 60079-11: 2007 for electrical safety. It is RoHS compliant (2002/95/EC).

Environmental Specifications: Operating temperature ranges from -25°C to +55°C, with a storage temperature of -25°C to +70°C. The product has a lifetime of up to 20 years or 4000 cycles, classified under climate class "wide-spread" (DIN IEC 60721-2-1:1992) and thermal class 130 (B) (DIN EN 60085: 2005).

Physical Specifications: The valve weighs 125 g and can be installed on the inlet or outlet side. The product line includes the GMC, GMS, and GMI models, with the latter two featuring sensors and integrated electronics.

Additional Features: The Saia GM is available with gear ratios of i = 40 and i = 106, and includes an adapter interface.

Catalog excerpts

Saia - GM Gas Valve Product Line Characteristics: Zero Pressure Drop Gas Shut-Off Valve for Smart Meters Specifications: ATEX classification: Resistance to gas and vapour: Electrical safety: Operating temperature: Storage temperature: Life time: Climate class: Thermal class: RoHS: Weight: Installation: Type: II 3G EX ic IIA T3 EN 1359: 2007 EN 60079-0: 2006, EN 60079-11: 2007 -25°C … +55°C -25°C … +70°C ≤ 20 years / ≤ 4000 cycles “wide-spread” , DIN IEC 60721-2-1:1992 130 (B) , DIN EN 60085: 2005 2002/95/EC 125 g Inlet or outlet side GMC - Compact gas shut-off valve GMS - Compact gas shut-off valve with sensor GMI - Compact gas shut-off valve with sensor and integrated electronic Performance Data: General Operating pressure: Maximum pressure: External leakage (20°C): Internal leakage (20°C): Flow rate: Pressure drop: Closing speed: Electrical Nominal voltage: Winding resistance: Inductance: Energy consumption: 30 mbar 500 mbar < 1l at 75 mbar, < 5l at maximum pressure < 50 ml at 10 mbar ≤ 10 m³ / h (for G4 and G6 meters) < 0,1 mbar at 10 m³ / h, 100 mbar < 11 sec. at 50 Hz 2,8 V … 3,6 V 34 Ohm ±10% per phase 41,7 mH ±10% per phase at 1000 Hz sine wave, 1 V ≤ 4 Ws at nominal voltage (closing cycle) Circuit diagram: open valve close valve [email protected] Saia Motor

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