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The Siemens VGD 20 403 is designed as a double gas valve to be integrated into gas trains
15U - Connecting flanges
With air pressure supervision for checked air damper control
No valve proving
Dungs LGW 150 A2P Pressure Switch
Siemens PME71.901A1 Programming Module 110v model_skp25_001e1 The Siemens VGD 20 403Professional PME71 series program module designed for LME71. 000A1 flame safeguard controllers. PWM blower control with direct spark ignition and valve proving. Key features include: PWM blower control, Direct spark only, Valve proving, No actuator control. Provides PWM blower control, valve proving. Compatible with flame rods and UV scanners. Technical Specifications Model: PME71. 901A1 Series: PME71 Voltage: 110V Compatible Base Unit: LME71. 000A1
