VOG15.012U1 Siemens Valve

Overview

The Siemens VOG15.012U1 is an electro-hydraulically actuated oil safety shut-off valve designed for industrial and commercial burner applications. This 3/4-inch valve serves as a versatile 2-way or 3-way component, featuring a normally closed port for safety shut-off and a normally open bottom port typically used for the recirculation of heavier oils. The unit is equipped with a high-performance actuator that opens slowly upon power application and closes rapidly in less than one second when power is interrupted, ensuring immediate safety in critical situations. This specific model includes a Proof of Closure (POC) switch and an adjustable auxiliary switch to provide enhanced monitoring and control within a combustion system.

Features

• Combined Proof of Closure (POC) and adjustable auxiliary switches for advanced status signaling
• Electro-hydraulic operation provides slow opening and fast shut-off (less than 1 second)
• Visual position indicator and power-on light integrated into the actuator cover
• Versatile 2-way or 3-way configuration with included NPT pipe plug for conversion
• Watertight design (NEMA 4) when mounted in a vertical position
• Actuator can be rotated 360 degrees for flexible field wiring and installation
• Low power consumption of approximately 20 VA during operation
• Durable construction with a forged brass valve body and stainless steel stem and seat

Specifications

• Model Number: VOG15.012U1
• Connection Size: 3/4 inch NPT (includes 1/2 inch hardware kit/bushings)
• Operating Voltage: 110/120 VAC (50/60 Hz)
• Maximum Operating Pressure: 300 PSIG
• Maximum Oil Temperature: 300 F
• Oil Viscosity: Suitable for #2, #4, and #6 oil up to 5000 SSU
• Flow Capacity (Cv): 4.4 for a single valve
• Ambient Temperature Range: 15 F to 140 F
• Agency Approvals: UL listed, FM approved, CSA certified

Applications

• Safety shut-off control for commercial and industrial oil burners
• Recirculation of heavy fuel oils in 3-way piping configurations
• Use in HVAC systems requiring reliable oil flow interruption
• Integration into complex burner management systems where proof of closure and auxiliary signaling are required
• Suitable for various mounting positions, excluding upside-down installations