The Siemens Combustion VA50.4 Series provides a comprehensive, heavy-duty range of pre-engineered Valve and Actuator (VA) assemblies. Powered by the high-torque Siemens SQM50.4 electronic actuator, these assemblies are engineered for the most demanding industrial burner and boiler applications. Integrating VKF butterfly valves, VKP proportional valves, WBV wafer valves, and VKO oil valves into factory-aligned units, the VA50.4 series guarantees precision air/fuel ratio control, zero mechanical backlash, and long-term reliability in harsh environments.
Technical Specifications
- Product Family: Siemens Combustion VA50.4 Series (Complete Assemblies)
- Actuator Included: Siemens SQM50.4 (Electronic Stepper, Pre-Mounted)
- Actuator Performance: High-Torque / Application-Specific Electronic Profiles
- Operating Voltage: Available in 24V, 120V, and 220V/230V AC configurations
- Protection Ratings: Standard and NEMA 4 (-N4) Available
- Valve Compatibility: VKF Flanged, WBV Wafer, VKP Proportional, VKO Oil, and PBA Manifolds
Key Features & Benefits
- Ready-to-Install Assemblies: Every VA50.4 unit is delivered factory-assembled with industrial-grade brackets and rigid couplings to ensure perfect shaft alignment and immediate operational readiness.
- High-Torque Actuation: Designed to provide the physical turning force required for large-bore valves (up to 14″ WBV) and high-pressure differentials without compromising step resolution.
- Extensive Sub-Series Configurations: Includes specialized variants such as the VA50.4A, VA50.4A3, VA50.4H, VA50.4K, VA50.4Z, and VA50.4Z7. Each sub-series features distinct internal circuit board logic and auxiliary switch setups to match specific Siemens Burner Management Systems (BMS).
- Broad Voltage Options: Features specific models designated for standard 120V, “(24)” for low-voltage 24V AC loops, and “(220)” for international 220V/230V AC control power.
- Environmental Protection: Many configurations carry the “-N4” suffix, providing a weather-sealed enclosure that protects vital electronic components from moisture, dust, and washdowns.
VA50.4 Parts We Provide
VA50.4(220)-1.25VKF10-N4
VA50.4(220)-1.25VKF11
VA50.4(220)-1.25VKF11-N4
VA50.4(220)-1.5VKF10
VA50.4(220)-1.5VKF10-N4
VA50.4(220)-1.5VKF11
VA50.4(220)-1.5VKF11-N4
VA50.4(220)-2.0VKF10
VA50.4(220)-2.0VKF10-N4
VA50.4(220)-2.0VKF11
VA50.4(220)-2.0VKF11-N4
VA50.4(220)-2.5VKF10
VA50.4(220)-2.5VKF10-N4
VA50.4(220)-2.5VKF11
VA50.4(220)-2.5VKF11-N4
VA50.4(220)-3.0VKF10
VA50.4(220)-3.0VKF10-N4
VA50.4(220)-3.0VKF11
VA50.4(220)-3.0VKF11-N4
VA50.4(220)-4.0VKF10
VA50.4(220)-4.0VKF10-N4
VA50.4(220)-4.0VKF11
VA50.4(220)-4.0VKF11-N4
VA50.4(220)-5.0VKF10
VA50.4(220)-5.0VKF10-N4
VA50.4(220)-5.0VKF11
VA50.4(220)-5.0VKF11-N4
VA50.4(220)-6.0VKF10
VA50.4(220)-6.0VKF10-N4
VA50.4(220)-6.0VKF11
VA50.4(220)-6.0VKF11-N4
VA50.4(220)-8.0VKF10
VA50.4(220)-8.0VKF10-N4
VA50.4(220)-8.0VKF11
VA50.4(220)-8.0VKF11-N4
VA50.4(220)-NF-050H
VA50.4(220)-NF-075
VA50.4(220)-NF-100
VA50.4(220)-NF-125
VA50.4(220)-NF-150
VA50.4(220)-NF-200
VA50.4(220)-NF-250
VA50.4(220)-NF-300
VA50.4(220)-NF-400
VA50.4(220)-NM-100
VA50.4(220)-NM-125
VA50.4(220)-NM-150
VA50.4(220)-NM-200
VA50.4(220)-NM-250
VA50.4(220)-NM-300
VA50.4(220)-NM-400
VA50.4(220)-NR-150
VA50.4(220)-NR-200
VA50.4(220)-NR-250
VA50.4(220)-NR-300
VA50.4(220)-NR-400
VA50.4(220)-RF-050
VA50.4(220)-RF-075
VA50.4(220)-RF-100
VA50.4(220)-RF-125
VA50.4(220)-RF-150
VA50.4(220)-RF-200
VA50.4(220)-RF-250
VA50.4(220)-RF-300
VA50.4(220)-RM-100
VA50.4(220)-RM-125
VA50.4(220)-RM-150
VA50.4(220)-RM-200
VA50.4(220)-RM-250
VA50.4(220)-RM-300
VA50.4(220)-RR-150
VA50.4(220)-RR-200
VA50.4(220)-RR-250
VA50.4(220)-RR-300
VA50.4(24)-0.5-0.5VKP-0.5
VA50.4(24)-1.0-1.0VKP-1.0
VA50.4(24)-1.25VKF10
VA50.4(24)-1.25VKF11
VA50.4(24)-1.5VKF10
VA50.4(24)-1.5VKF11
VA50.4(24)-2.0VKF10
VA50.4(24)-2.0VKF11
VA50.4(24)-2.5VKF10
VA50.4(24)-2.5VKF11
VA50.4(24)-3.0VKF10
VA50.4(24)-3.0VKF11
VA50.4(24)-4.0VKF10
VA50.4(24)-4.0VKF11
VA50.4(24)-5.0VKF10
VA50.4(24)-5.0VKF11
VA50.4(24)-6.0VKF10
VA50.4(24)-6.0VKF11
VA50.4(24)-8.0VKF10
VA50.4(24)-8.0VKF11
VA50.4(24)-NF-050H
VA50.4(24)-NF-075
VA50.4(24)-NF-100
VA50.4(24)-NF-125
VA50.4(24)-NF-150
VA50.4(24)-NF-200
VA50.4(24)-NF-250
VA50.4(24)-NF-300
VA50.4(24)-NF-400
VA50.4(24)-NM-100
VA50.4(24)-NM-125
VA50.4(24)-NM-150
VA50.4(24)-NM-200
VA50.4(24)-NM-250
VA50.4(24)-NM-300
VA50.4(24)-NM-400
VA50.4(24)-NR-100
VA50.4(24)-NR-150
VA50.4(24)-NR-200
VA50.4(24)-NR-250
VA50.4(24)-NR-300
VA50.4(24)-NR-400
VA50.4-0.5-0.5VKP-0.5
VA50.4-0.75-0.75VKP-0.75
VA50.4-1.0-0.75VKP-1.0
VA50.4-1.0-1.0VKP-1.0
VA50.4-1.25-1.25VKP-1.25
VA50.4-1.25VKF10
VA50.4-1.25VKF10-N4
VA50.4-1.25VKF11
VA50.4-1.25VKF11-N4
VA50.4-1.5-1.25VKP-1.5
VA50.4-1.5-1.25VKP-1.5-270
VA50.4-1.5-1.5VKP-1.5
VA50.4-1.5VKF10
VA50.4-1.5VKF10-N4
VA50.4-1.5VKF11
VA50.4-1.5VKF11-N4
VA50.4-10WBV
VA50.4-10WBV-HT
VA50.4-12WBV
VA50.4-12WBV-HT
VA50.4-14WBV
VA50.4-14WBV-HT
VA50.4-2.0-1.25VKP-2.0
VA50.4-2.0-2.0HVKP-2.0
VA50.4-2.0-2.0SVKP-2.0
VA50.4-2.0-2.0VKP-2.0
VA50.4-2.0VKF10
VA50.4-2.0VKF10-N4
VA50.4-2.0VKF11
VA50.4-2.0VKF11-N4
VA50.4-2.5VKF10
VA50.4-2.5VKF10-N4
VA50.4-2.5VKF11
VA50.4-2.5VKF11-N4
VA50.4-2.5WBV
VA50.4-2.5WBV-HT
VA50.4-2WBV
VA50.4-2WBV-HT
VA50.4-3.0VKF10
VA50.4-3.0VKF10-N4
VA50.4-3.0VKF11
VA50.4-3.0VKF11-N4
VA50.4-3WBV
VA50.4-3WBV-HT
VA50.4-4.0VKF10
VA50.4-4.0VKF10-N4
VA50.4-4.0VKF11
VA50.4-4.0VKF11-N4
VA50.4-4WBV
VA50.4-4WBV-HT
VA50.4-5.0VKF10
VA50.4-5.0VKF10-N4
VA50.4-5.0VKF11
VA50.4-5.0VKF11-N4
VA50.4-6.0VKF10
VA50.4-6.0VKF10-N4
VA50.4-6.0VKF11
VA50.4-6.0VKF11-N4
VA50.4-6WBV
VA50.4-6WBV-HT
VA50.47-1.25VKF10
VA50.47-1.25VKF10-N4
VA50.47-1.25VKF11
VA50.47-1.25VKF11-N4
VA50.47-1.5VKF10
VA50.47-1.5VKF10-N4
VA50.47-1.5VKF11
VA50.47-1.5VKF11-N4
VA50.47-10WBV
VA50.47-10WBV-HT
VA50.47-12WBV
VA50.47-12WBV-HT
VA50.47-14WBV
VA50.47-14WBV-HT
VA50.47-2.0VKF10
VA50.47-2.0VKF10-N4
VA50.47-2.0VKF11
VA50.47-2.0VKF11-N4
VA50.47-2.5VKF10
VA50.47-2.5VKF10-N4
VA50.47-2.5VKF11
VA50.47-2.5VKF11-N4
VA50.47-2.5WBV
VA50.47-2.5WBV-HT
VA50.47-2WBV
VA50.47-2WBV-HT
VA50.47-3.0VKF10
VA50.47-3.0VKF10-N4
VA50.47-3.0VKF11
VA50.47-3.0VKF11-N4
VA50.47-3WBV
VA50.47-3WBV-HT
VA50.47-4.0VKF10
VA50.47-4.0VKF10-N4
VA50.47-4.0VKF11
VA50.47-4.0VKF11-N4
VA50.47-4WBV
VA50.47-4WBV-HT
VA50.47-5.0VKF10
VA50.47-5.0VKF10-N4
VA50.47-5.0VKF11
VA50.47-5.0VKF11-N4
VA50.47-6.0VKF10
VA50.47-6.0VKF10-N4
VA50.47-6.0VKF11
VA50.47-6.0VKF11-N4
VA50.47-6WBV
VA50.47-6WBV-HT
VA50.47-8.0VKF10
VA50.47-8.0VKF10-N4
VA50.47-8.0VKF11
VA50.47-8.0VKF11-N4
VA50.47-8WBV
VA50.47-8WBV-HT
VA50.47-NF-050H
VA50.47-NF-075
VA50.47-NF-100
VA50.47-NF-125
VA50.47-NF-150
VA50.47-NF-200
VA50.47-NF-250
VA50.47-NF-300
VA50.47-NF-400
VA50.47-NM-100
VA50.47-NM-125
VA50.47-NM-150
VA50.47-NM-200
VA50.47-NM-250
VA50.47-NM-300
VA50.47-NM-400
VA50.47-NR-100
VA50.47-NR-150
VA50.47-NR-200
VA50.47-NR-250
VA50.47-NR-300
VA50.47-NR-400
VA50.47-RF-050
VA50.47-RF-075
VA50.47-RF-100
VA50.47-RF-125
VA50.47-RF-150
VA50.47-RF-200
VA50.47-RF-250
VA50.47-RF-300
VA50.47-RM-100
VA50.47-RM-125
VA50.47-RM-150
VA50.47-RM-200
VA50.47-RM-250
VA50.47-RM-300
VA50.47-RR-150
VA50.47-RR-200
VA50.47-RR-250
VA50.47-RR-300
VA50.4-8.0VKF10
VA50.4-8.0VKF10-N4
VA50.4-8.0VKF11
VA50.4-8.0VKF11-N4
VA50.4-8WBV
VA50.4-8WBV-HT
VA50.48Z(24)-NF-125
VA50.4A(24)-NF-050H
VA50.4A(24)-NF-075
VA50.4A(24)-NF-100
VA50.4A(24)-NF-125
VA50.4A(24)-NF-150
VA50.4A(24)-NF-200
VA50.4A(24)-NF-250
VA50.4A(24)-NF-300
VA50.4A(24)-NF-400
VA50.4A-1.25VKF10
VA50.4A-1.25VKF10-N4
VA50.4A-1.25VKF11
VA50.4A-1.25VKF11-N4
VA50.4A-1.5VKF10
VA50.4A-1.5VKF10-N4
VA50.4A-1.5VKF11
VA50.4A-1.5VKF11-N4
VA50.4A-10WBV
VA50.4A-10WBV-HT
VA50.4A-12WBV
VA50.4A-12WBV-HT
VA50.4A-14WBV
VA50.4A-14WBV-HT
VA50.4A-2.0VKF10
VA50.4A-2.0VKF10-N4
VA50.4A-2.0VKF11
VA50.4A-2.0VKF11-N4
VA50.4A-2.5VKF10
VA50.4A-2.5VKF10-N4
VA50.4A-2.5VKF11
VA50.4A-2.5VKF11-N4
VA50.4A-2.5WBV
VA50.4A-2.5WBV-HT
VA50.4A-2WBV
VA50.4A-2WBV-HT
VA50.4A3(220)-1.25VKF10
VA50.4A3(220)-1.25VKF10-N4
VA50.4A3(220)-1.25VKF11
VA50.4A3(220)-1.25VKF11-N4
VA50.4A3(220)-1.5VKF10
VA50.4A3(220)-1.5VKF10-N4
VA50.4A3(220)-1.5VKF11
VA50.4A3(220)-1.5VKF11-N4
VA50.4A3(220)-2.0VKF10
VA50.4A3(220)-2.0VKF10-N4
VA50.4A3(220)-2.0VKF11
VA50.4A3(220)-2.0VKF11-N4
VA50.4A3(220)-2.5VKF10
VA50.4A3(220)-2.5VKF10-N4
VA50.4A3(220)-2.5VKF11
VA50.4A3(220)-2.5VKF11-N4
VA50.4A3(220)-3.0VKF10
VA50.4A3(220)-3.0VKF10-N4
VA50.4A3(220)-3.0VKF11
VA50.4A3(220)-3.0VKF11-N4
VA50.4A3(220)-4.0VKF10
VA50.4A3(220)-4.0VKF10-N4
VA50.4A3(220)-4.0VKF11
VA50.4A3(220)-4.0VKF11-N4
VA50.4A3(220)-5.0VKF10
VA50.4A3(220)-5.0VKF10-N4
VA50.4A3(220)-5.0VKF11
VA50.4A3(220)-5.0VKF11-N4
VA50.4A3(220)-6.0VKF10
VA50.4A3(220)-6.0VKF10-N4
VA50.4A3(220)-6.0VKF11
VA50.4A3(220)-6.0VKF11-N4
VA50.4A3(220)-8.0VKF10
VA50.4A3(220)-8.0VKF10-N4
VA50.4A3(220)-8.0VKF11
VA50.4A3(220)-8.0VKF11-N4
VA50.4A3(220)-NF-050H
VA50.4A3(220)-NF-075
VA50.4A3(220)-NF-100
VA50.4A3(220)-NF-125
VA50.4A3(220)-NF-150
VA50.4A3(220)-NF-200
VA50.4A3(220)-NF-250
VA50.4A3(220)-NF-300
VA50.4A3(220)-NF-400
VA50.4A3(220)-NM-100
VA50.4A3(220)-NM-125
VA50.4A3(220)-NM-150
VA50.4A3(220)-NM-200
VA50.4A3(220)-NM-250
VA50.4A3(220)-NM-300
VA50.4A3(220)-NM-400
VA50.4A3(220)-NR-150
VA50.4A3(220)-NR-200
VA50.4A3(220)-NR-250
VA50.4A3(220)-NR-300
VA50.4A3(220)-NR-400
VA50.4A3(220)-RF-050
VA50.4A3(220)-RF-075
VA50.4A3(220)-RF-100
VA50.4A3(220)-RF-125
VA50.4A3(220)-RF-150
VA50.4A3(220)-RF-200
VA50.4A3(220)-RF-250
VA50.4A3(220)-RF-300
VA50.4A3(220)-RM-100
VA50.4A3(220)-RM-125
VA50.4A3(220)-RM-150
VA50.4A3(220)-RM-200
VA50.4A3(220)-RM-250
VA50.4A3(220)-RM-300
VA50.4A3(220)-RR-150
VA50.4A3(220)-RR-200
VA50.4A3(220)-RR-250
VA50.4A3(220)-RR-300
VA50.4A-3.0VKF10
VA50.4A-3.0VKF10-N4
VA50.4A-3.0VKF11
VA50.4A-3.0VKF11-N4
VA50.4A3-1.25VKF10
VA50.4A3-1.25VKF10-N4
VA50.4A3-1.25VKF11
VA50.4A3-1.25VKF11-N4
VA50.4A3-1.5VKF10
VA50.4A3-1.5VKF10-N4
VA50.4A3-1.5VKF11
VA50.4A3-1.5VKF11-N4
VA50.4A3-10WBV
VA50.4A3-10WBV-HT
VA50.4A3-12WBV
VA50.4A3-12WBV-HT
VA50.4A3-14WBV
VA50.4A3-14WBV-HT
VA50.4A3-2.0VKF10
VA50.4A3-2.0VKF10-N4
VA50.4A3-2.0VKF11
VA50.4A3-2.0VKF11-N4
VA50.4A3-2.5VKF10
VA50.4A3-2.5VKF10-N4
VA50.4A3-2.5VKF11
VA50.4A3-2.5VKF11-N4
VA50.4A3-2.5WBV
VA50.4A3-2.5WBV-HT
VA50.4A3-2WBV
VA50.4A3-2WBV-HT
VA50.4A3-3.0VKF10
VA50.4A3-3.0VKF10-N4
VA50.4A3-3.0VKF11
VA50.4A3-3.0VKF11-N4
VA50.4A3-3WBV
VA50.4A3-3WBV-BD
VA50.4A3-3WBV-HT
VA50.4A3-4.0VKF10
VA50.4A3-4.0VKF10-N4
VA50.4A3-4.0VKF11
VA50.4A3-4.0VKF11-N4
VA50.4A3-4WBV
VA50.4A3-4WBV-HT
VA50.4A3-5.0VKF10
VA50.4A3-5.0VKF10-N4
VA50.4A3-5.0VKF11
VA50.4A3-5.0VKF11-N4
VA50.4A3-6.0VKF10
VA50.4A3-6.0VKF10-N4
VA50.4A3-6.0VKF11
VA50.4A3-6.0VKF11-N4
VA50.4A3-6WBV
VA50.4A3-6WBV-HT
VA50.4A3-8.0VKF10
VA50.4A3-8.0VKF10-N4
VA50.4A3-8.0VKF11
VA50.4A3-8.0VKF11-N4
VA50.4A3-8WBV
VA50.4A3-8WBV-HT
VA50.4A3-NF-050H
VA50.4A3-NF-075
VA50.4A3-NF-100
VA50.4A3-NF-125
VA50.4A3-NF-150
VA50.4A3-NF-200
VA50.4A3-NF-250
VA50.4A3-NF-300
VA50.4A3-NF-400
VA50.4A3-NFB-075
VA50.4A3-NFB-100
VA50.4A3-NFB-125
VA50.4A3-NFB-150
VA50.4A3-NFB-200
VA50.4A3-NFB-250
VA50.4A3-NFB-300
VA50.4A3-NFB-400
VA50.4A3-NM-100
VA50.4A3-NM-125
VA50.4A3-NM-150
VA50.4A3-NM-200
VA50.4A3-NM-250
VA50.4A3-NM-300
VA50.4A3-NM-400
VA50.4A3-NMB-100
VA50.4A3-NMB-125
VA50.4A3-NMB-150
VA50.4A3-NMB-200
VA50.4A3-NMB-250
VA50.4A3-NMB-300
VA50.4A3-NMB-400
VA50.4A3-NR-100
VA50.4A3-NR-150
VA50.4A3-NR-200
VA50.4A3-NR-250
VA50.4A3-NR-300
VA50.4A3-NR-400
VA50.4A3-NRB-150
VA50.4A3-NRB-200
VA50.4A3-NRB-250
VA50.4A3-NRB-300
VA50.4A3-NRB-400
VA50.4A3-RF-050
VA50.4A3-RF-075
VA50.4A3-RF-100
VA50.4A3-RF-125
VA50.4A3-RF-150
VA50.4A3-RF-200
VA50.4A3-RF-250
VA50.4A3-RF-300
VA50.4A3-RM-100
VA50.4A3-RM-125
VA50.4A3-RM-150
VA50.4A3-RM-200
VA50.4A3-RM-250
VA50.4A3-RM-300
VA50.4A3-RR-150
VA50.4A3-RR-200
VA50.4A3-RR-250
VA50.4A3-RR-300
VA50.4A-3WBV
VA50.4A-3WBV-HT
VA50.4A-4.0VKF10
VA50.4A-4.0VKF10-N4
VA50.4A-4.0VKF11
VA50.4A-4.0VKF11-N4
VA50.4A-4WBV
VA50.4A-4WBV-HT
VA50.4A-5.0VKF10
VA50.4A-5.0VKF10-N4
VA50.4A-5.0VKF11
VA50.4A-5.0VKF11-N4
VA50.4A-6.0VKF10
VA50.4A-6.0VKF10-N4
VA50.4A-6.0VKF11
VA50.4A-6.0VKF11-N4
VA50.4A-6WBV
VA50.4A-6WBV-HT
VA50.4A7-NF-050H
VA50.4A7-NF-075
VA50.4A7-NF-100
VA50.4A7-NF-125
VA50.4A7-NF-150
VA50.4A7-NF-200
VA50.4A7-NF-250
VA50.4A7-NF-300
VA50.4A7-NF-400
VA50.4A7-NM-100
VA50.4A7-NM-125
VA50.4A7-NM-150
VA50.4A7-NM-200
VA50.4A7-NM-250
VA50.4A7-NM-300
VA50.4A7-NM-400
VA50.4A7-NR-100
VA50.4A7-NR-150
VA50.4A7-NR-200
VA50.4A7-NR-250
VA50.4A7-NR-300
VA50.4A7-NR-400
VA50.4A7-RF-050
VA50.4A7-RF-075
VA50.4A7-RF-100
VA50.4A7-RF-125
VA50.4A7-RF-150
VA50.4A7-RF-200
VA50.4A7-RF-250
VA50.4A7-RF-300
VA50.4A7-RM-100
VA50.4A7-RM-125
VA50.4A7-RM-150
VA50.4A7-RM-200
VA50.4A7-RM-250
VA50.4A7-RM-300
VA50.4A7-RR-150
VA50.4A7-RR-200
VA50.4A7-RR-250
VA50.4A7-RR-300
VA50.4A-8.0VKF10
VA50.4A-8.0VKF10-N4
VA50.4A-8.0VKF11
VA50.4A-8.0VKF11-N4
VA50.4A-8WBV
VA50.4A-8WBV-HT
VA50.4A-NF-050H
VA50.4A-NF-075
VA50.4A-NF-100
VA50.4A-NF-125
VA50.4A-NF-150
VA50.4A-NF-200
VA50.4A-NF-250
VA50.4A-NF-300
VA50.4A-NF-400
VA50.4A-NM-100
VA50.4A-NM-125
VA50.4A-NM-150
VA50.4A-NM-200
VA50.4A-NM-250
VA50.4A-NM-300
VA50.4A-NM-400
VA50.4A-NR-100
VA50.4A-NR-150
VA50.4A-NR-200
VA50.4A-NR-250
VA50.4A-NR-300
VA50.4A-NR-400
VA50.4A-RF-050
VA50.4A-RF-075
VA50.4A-RF-100
VA50.4A-RF-125
VA50.4A-RF-150
VA50.4A-RF-200
VA50.4A-RF-250
VA50.4A-RF-300
VA50.4A-RM-100
VA50.4A-RM-125
VA50.4A-RM-150
VA50.4A-RM-200
VA50.4A-RM-250
VA50.4A-RM-300
VA50.4A-RR-150
VA50.4A-RR-200
VA50.4A-RR-250
VA50.4A-RR-300
VA50.4H-1.25VKF10
VA50.4H-1.25VKF11
VA50.4H-1.5VKF10
VA50.4H-1.5VKF11
VA50.4H-2.0VKF10
VA50.4H-2.0VKF11
VA50.4H-2.5VKF10
VA50.4H-2.5VKF11
VA50.4H-3.0VKF10
VA50.4H-3.0VKF11
VA50.4H-4.0VKF10
VA50.4H-4.0VKF11
VA50.4H-5.0VKF10
VA50.4H-5.0VKF11
VA50.4H-6.0VKF10
VA50.4H-6.0VKF11
VA50.4H-8.0VKF10
VA50.4H-8.0VKF11
VA50.4K(220)-1.25VKF10
VA50.4K(220)-1.25VKF10-N4
VA50.4K(220)-1.25VKF11
VA50.4K(220)-1.25VKF11-N4
VA50.4K(220)-1.5VKF10
VA50.4K(220)-1.5VKF10-N4
VA50.4K(220)-1.5VKF11
VA50.4K(220)-1.5VKF11-N4
VA50.4K(220)-2.0VKF10
VA50.4K(220)-2.0VKF10-N4
VA50.4K(220)-2.0VKF11
VA50.4K(220)-2.0VKF11-N4
VA50.4K(220)-2.5VKF10
VA50.4K(220)-2.5VKF10-N4
VA50.4K(220)-2.5VKF11
VA50.4K(220)-2.5VKF11-N4
VA50.4K(220)-3.0VKF10
VA50.4K(220)-3.0VKF10-N4
VA50.4K(220)-3.0VKF11
VA50.4K(220)-3.0VKF11-N4
VA50.4K(220)-4.0VKF10
VA50.4K(220)-4.0VKF10-N4
VA50.4K(220)-4.0VKF11
VA50.4K(220)-4.0VKF11-N4
VA50.4K(220)-5.0VKF10
VA50.4K(220)-5.0VKF10-N4
VA50.4K(220)-5.0VKF11
VA50.4K(220)-5.0VKF11-N4
VA50.4K(220)-6.0VKF10
VA50.4K(220)-6.0VKF10-N4
VA50.4K(220)-6.0VKF11
VA50.4K(220)-6.0VKF11-N4
VA50.4K(220)-8.0VKF10
VA50.4K(220)-8.0VKF10-N4
VA50.4K(220)-8.0VKF11
VA50.4K(220)-8.0VKF11-N4
VA50.4K(220)-NF-050H
VA50.4K(220)-NF-075
VA50.4K(220)-NF-100
VA50.4K(220)-NF-125
VA50.4K(220)-NF-150
VA50.4K(220)-NF-200
VA50.4K(220)-NF-250
VA50.4K(220)-NF-300
VA50.4K(220)-NF-400
VA50.4K(220)-NM-100
VA50.4K(220)-NM-125
VA50.4K(220)-NM-150
VA50.4K(220)-NM-200
VA50.4K(220)-NM-250
VA50.4K(220)-NM-300
VA50.4K(220)-NM-400
VA50.4K(220)-NR-150
VA50.4K(220)-NR-200
VA50.4K(220)-NR-250
VA50.4K(220)-NR-300
VA50.4K(220)-NR-400
VA50.4K(220)-RF-050
VA50.4K(220)-RF-075
VA50.4K(220)-RF-100
VA50.4K(220)-RF-125
VA50.4K(220)-RF-150
VA50.4K(220)-RF-200
VA50.4K(220)-RF-250
VA50.4K(220)-RF-300
VA50.4K(220)-RM-100
VA50.4K(220)-RM-125
VA50.4K(220)-RM-150
VA50.4K(220)-RM-200
VA50.4K(220)-RM-250
VA50.4K(220)-RM-300
VA50.4K(220)-RR-150
VA50.4K(220)-RR-200
VA50.4K(220)-RR-250
VA50.4K(220)-RR-300
VA50.4K-1.25VKF10
VA50.4K-1.25VKF10-N4
VA50.4K-1.25VKF11
VA50.4K-1.25VKF11-N4
VA50.4K-1.5VKF10
VA50.4K-1.5VKF10-N4
VA50.4K-1.5VKF11
VA50.4K-1.5VKF11-N4
VA50.4K-10WBV
VA50.4K-10WBV-HT
VA50.4K-12WBV
VA50.4K-12WBV-HT
VA50.4K-14WBV
VA50.4K-14WBV-HT
VA50.4K-2.0VKF10
VA50.4K-2.0VKF10-N4
VA50.4K-2.0VKF11
VA50.4K-2.0VKF11-N4
VA50.4K-2.5VKF10
VA50.4K-2.5VKF10-N4
VA50.4K-2.5VKF11
VA50.4K-2.5VKF11-N4
VA50.4K-2.5WBV
VA50.4K-2.5WBV-HT
VA50.4K-2WBV
VA50.4K-2WBV-HT
VA50.4K-3.0VKF10
VA50.4K-3.0VKF10-N4
VA50.4K-3.0VKF11
VA50.4K-3.0VKF11-N4
VA50.4K-3WBV
VA50.4K-3WBV-HT
VA50.4K-4.0VKF10
VA50.4K-4.0VKF10-N4
VA50.4K-4.0VKF11
VA50.4K-4.0VKF11-N4
VA50.4K-4WBV
VA50.4K-4WBV-HT
VA50.4K-5.0VKF10
VA50.4K-5.0VKF10-N4
VA50.4K-5.0VKF11
VA50.4K-5.0VKF11-N4
VA50.4K-6.0VKF10
VA50.4K-6.0VKF10-N4
VA50.4K-6.0VKF11
VA50.4K-6.0VKF11-N4
VA50.4K-6WBV
VA50.4K-6WBV-HT
VA50.4K-8.0VKF10
VA50.4K-8.0VKF10-N4
VA50.4K-8.0VKF11
VA50.4K-8.0VKF11-N4
VA50.4K-8WBV
VA50.4K-8WBV-HT
VA50.4K-NF-050H
VA50.4K-NF-075
VA50.4K-NF-100
VA50.4K-NF-125
VA50.4K-NF-150
VA50.4K-NF-200
VA50.4K-NF-250
VA50.4K-NF-300
VA50.4K-NF-400
VA50.4K-NFB-075
VA50.4K-NFB-100
VA50.4K-NFB-125
VA50.4K-NFB-150
VA50.4K-NFB-200
VA50.4K-NFB-250
VA50.4K-NFB-300
VA50.4K-NFB-400
VA50.4K-NM-100
VA50.4K-NM-125
VA50.4K-NM-150
VA50.4K-NM-200
VA50.4K-NM-250
VA50.4K-NM-300
VA50.4K-NM-400
VA50.4K-NR-100
VA50.4K-NR-150
VA50.4K-NR-200
VA50.4K-NR-250
VA50.4K-NR-300
VA50.4K-NR-400
VA50.4K-NRB-150
VA50.4K-NRB-200
VA50.4K-NRB-250
VA50.4K-NRB-300
VA50.4K-NRB-400
VA50.4K-RF-050
VA50.4K-RF-075
VA50.4K-RF-100
VA50.4K-RF-125
VA50.4K-RF-150
VA50.4K-RF-200
VA50.4K-RF-250
VA50.4K-RF-300
VA50.4K-RM-100
VA50.4K-RM-125
VA50.4K-RM-150
VA50.4K-RM-200
VA50.4K-RM-250
VA50.4K-RM-300
VA50.4K-RR-150
VA50.4K-RR-200
VA50.4K-RR-250
VA50.4K-RR-300
VA50.4-NF-050H
VA50.4-NF-075
VA50.4-NF-100
VA50.4-NF-125
VA50.4-NF-150
VA50.4-NF-200
VA50.4-NF-250
VA50.4-NF-300
VA50.4-NF-400
VA50.4-NFB-075
VA50.4-NFB-100
VA50.4-NFB-125
VA50.4-NFB-150
VA50.4-NFB-200
VA50.4-NFB-250
VA50.4-NFB-300
VA50.4-NFB-400
VA50.4-NM-100
VA50.4-NM-125
VA50.4-NM-150
VA50.4-NM-200
VA50.4-NM-250
VA50.4-NM-300
VA50.4-NM-400
VA50.4-NMB-100
VA50.4-NMB-125
VA50.4-NMB-150
VA50.4-NMB-200
VA50.4-NMB-250
VA50.4-NMB-300
VA50.4-NMB-400
VA50.4-NR-100
VA50.4-NR-150
VA50.4-NR-200
VA50.4-NR-250
VA50.4-NR-300
VA50.4-NR-400
VA50.4-NRB-150
VA50.4-NRB-200
VA50.4-NRB-250
VA50.4-NRB-300
VA50.4-NRB-400
VA50.4R-0.5-0.5VKP-0.5
VA50.4-RF-050
VA50.4-RF-075
VA50.4-RF-100
VA50.4-RF-125
VA50.4-RF-150
VA50.4-RF-200
VA50.4-RF-250
VA50.4-RF-300
VA50.4-RM-100
VA50.4-RM-125
VA50.4-RM-150
VA50.4-RM-200
VA50.4-RM-250
VA50.4-RM-300
VA50.4R-NF-300
VA50.4-RR-150
VA50.4-RR-200
VA50.4-RR-250
VA50.4-RR-300
VA50.4-VKO30.060CN
VA50.4-VKO30.074CN
VA50.4-VKO30.084CN
VA50.4-VKO30.096CN
VA50.4-VKO31.060CU
VA50.4-VKO31.074CU
VA50.4-VKO31.084CU
VA50.4-VKO31.096CU
VA50.4-VKO50.100DN
VA50.4-VKO50.120DN
VA50.4-VKO50.145DN
VA50.4-VKO50.150CN
VA50.4-VKO51.100DU
VA50.4-VKO51.120DU
VA50.4-VKO51.145DU
VA50.4-VKO51.150CU
VA50.4Z(220)-1.25VKF10
VA50.4Z(220)-1.25VKF10-N4
VA50.4Z(220)-1.25VKF11
VA50.4Z(220)-1.25VKF11-N4
VA50.4Z(220)-1.5VKF10
VA50.4Z(220)-1.5VKF10-N4
VA50.4Z(220)-1.5VKF11
VA50.4Z(220)-1.5VKF11-N4
VA50.4Z(220)-2.0VKF10
VA50.4Z(220)-2.0VKF10-N4
VA50.4Z(220)-2.0VKF11
VA50.4Z(220)-2.0VKF11-N4
VA50.4Z(220)-2.5VKF10
VA50.4Z(220)-2.5VKF10-N4
VA50.4Z(220)-2.5VKF11
VA50.4Z(220)-2.5VKF11-N4
VA50.4Z(220)-2.5VKF11-N4
VA50.4Z(220)-3.0VKF10
VA50.4Z(220)-3.0VKF10-N4
VA50.4Z(220)-3.0VKF11
VA50.4Z(220)-3.0VKF11-N4
VA50.4Z(220)-4.0VKF10
VA50.4Z(220)-4.0VKF10-N4
VA50.4Z(220)-4.0VKF11
VA50.4Z(220)-4.0VKF11-N4
VA50.4Z(220)-5.0VKF10
VA50.4Z(220)-5.0VKF10-N4
VA50.4Z(220)-5.0VKF11
VA50.4Z(220)-5.0VKF11-N4
VA50.4Z(220)-6.0VKF10
VA50.4Z(220)-6.0VKF10-N4
VA50.4Z(220)-6.0VKF11
VA50.4Z(220)-6.0VKF11-N4
VA50.4Z(220)-8.0VKF10
VA50.4Z(220)-8.0VKF10-N4
VA50.4Z(220)-8.0VKF11
VA50.4Z(220)-8.0VKF11-N4
VA50.4Z(220)-NF-050H
VA50.4Z(220)-NF-075
VA50.4Z(220)-NF-100
VA50.4Z(220)-NF-125
VA50.4Z(220)-NF-150
VA50.4Z(220)-NF-200
VA50.4Z(220)-NF-250
VA50.4Z(220)-NF-300
VA50.4Z(220)-NF-400
VA50.4Z(220)-NM-100
VA50.4Z(220)-NM-125
VA50.4Z(220)-NM-150
VA50.4Z(220)-NM-200
VA50.4Z(220)-NM-250
VA50.4Z(220)-NM-300
VA50.4Z(220)-NM-400
VA50.4Z(220)-NR-150
VA50.4Z(220)-NR-200
VA50.4Z(220)-NR-250
VA50.4Z(220)-NR-300
VA50.4Z(220)-NR-400
VA50.4Z(220)-RF-050
VA50.4Z(220)-RF-075
VA50.4Z(220)-RF-100
VA50.4Z(220)-RF-125
VA50.4Z(220)-RF-150
VA50.4Z(220)-RF-200
VA50.4Z(220)-RF-250
VA50.4Z(220)-RF-300
VA50.4Z(220)-RM-100
VA50.4Z(220)-RM-125
VA50.4Z(220)-RM-150
VA50.4Z(220)-RM-200
VA50.4Z(220)-RM-250
VA50.4Z(220)-RM-300
VA50.4Z(220)-RR-150
VA50.4Z(220)-RR-200
VA50.4Z(220)-RR-250
VA50.4Z(220)-RR-300
VA50.4Z(24)-0.75-0.75VKP-0.75
VA50.4Z-0.5-0.5VKP-0.5
VA50.4Z-0.75-0.75VKP-0.75
VA50.4Z-1.0-0.75VKP-1.0
VA50.4Z-1.0-1.0VKP-1.0
VA50.4Z-1.25-1.25VKP-1.25
VA50.4Z-1.25VKF10
VA50.4Z-1.25VKF10-N4
VA50.4Z-1.25VKF11
VA50.4Z-1.25VKF11-N4
VA50.4Z-1.5-1.5VKP-1.5
VA50.4Z-1.5VKF10
VA50.4Z-1.5VKF10-N4
VA50.4Z-1.5VKF11
VA50.4Z-1.5VKF11-N4
VA50.4Z-10WBV
VA50.4Z-10WBV-HT
VA50.4Z-12WBV
VA50.4Z-12WBV-HT
VA50.4Z-14WBV
VA50.4Z-14WBV-HT
VA50.4Z-2.0-2.0HVKP-2.0
VA50.4Z-2.0-2.0SVKP-2.0
VA50.4Z-2.0-2.0VKP-2.0
VA50.4Z-2.0VKF10
VA50.4Z-2.0VKF10-N4
VA50.4Z-2.0VKF11
VA50.4Z-2.0VKF11-N4
VA50.4Z-2.5VKF10
VA50.4Z-2.5VKF10-N4
VA50.4Z-2.5VKF10-N4-180
VA50.4Z-2.5VKF11
VA50.4Z-2.5VKF11-N4
VA50.4Z-2.5WBV
VA50.4Z-2.5WBV-HT
VA50.4Z-2WBV
VA50.4Z-2WBV-HT
VA50.4Z-3.0VKF10
VA50.4Z-3.0VKF10-N4
VA50.4Z-3.0VKF11
VA50.4Z-3.0VKF11-N4
VA50.4Z-3WBV
VA50.4Z-3WBV-HT
VA50.4Z-4.0VKF10
VA50.4Z-4.0VKF10-N4
VA50.4Z-4.0VKF11
VA50.4Z-4.0VKF11-N4
VA50.4Z-4WBV
VA50.4Z-4WBV-HT
VA50.4Z-5.0VKF10
VA50.4Z-5.0VKF10-N4
VA50.4Z-5.0VKF11
VA50.4Z-5.0VKF11-N4
VA50.4Z-6.0VKF10
VA50.4Z-6.0VKF10-N4
VA50.4Z-6.0VKF10-N4-180
VA50.4Z-6.0VKF11
VA50.4Z-6.0VKF11-N4
VA50.4Z-6WBV
VA50.4Z-6WBV-HT
VA50.4Z7(220)-1.0-1.0VKP-1.0
VA50.4Z7(220)-1.25VKF10-N4
VA50.4Z7(220)-1.25VKF11-N4
VA50.4Z7(220)-1.5VKF10-N4
VA50.4Z7(220)-1.5VKF11-N4
VA50.4Z7(220)-2.0VKF10-N4
VA50.4Z7(220)-2.0VKF11-N4
VA50.4Z7(220)-2.5VKF10-N4
VA50.4Z7(220)-3.0VKF10-N4
VA50.4Z7(220)-3.0VKF11-N4
VA50.4Z7(220)-4.0VKF10-N4
VA50.4Z7(220)-4.0VKF11-N4
VA50.4Z7(220)-5.0VKF10-N4
VA50.4Z7(220)-5.0VKF11-N4
VA50.4Z7(220)-6.0VKF10-N4
VA50.4Z7(220)-6.0VKF11-N4
VA50.4Z7(220)-8.0VKF10-N4
VA50.4Z7(220)-8.0VKF11-N4
VA50.4Z7-1.25VKF10
VA50.4Z7-1.25VKF10-N4
VA50.4Z7-1.25VKF10-N4-180
VA50.4Z7-1.25VKF11
VA50.4Z7-1.25VKF11-N4
VA50.4Z7-1.5VKF10
VA50.4Z7-1.5VKF10-N4
VA50.4Z7-1.5VKF11
VA50.4Z7-1.5VKF11-N4
VA50.4Z7-10WBV
VA50.4Z7-10WBV-HT
VA50.4Z7-12WBV
VA50.4Z7-12WBV-HT
VA50.4Z7-14WBV
VA50.4Z7-14WBV-HT
VA50.4Z7-2.0VKF10
VA50.4Z7-2.0VKF10-N4
VA50.4Z7-2.0VKF11
VA50.4Z7-2.0VKF11-N4
VA50.4Z7-2.5VKF10
VA50.4Z7-2.5VKF10-N4
VA50.4Z7-2.5VKF11
VA50.4Z7-2.5VKF11-N4
VA50.4Z7-2.5WBV
VA50.4Z7-2WBV
VA50.4Z7-2WBV-HT
VA50.4Z7-3.0VKF10
VA50.4Z7-3.0VKF10-N4
VA50.4Z7-3.0VKF11
VA50.4Z7-3.0VKF11-N4
VA50.4Z7-3WBV
VA50.4Z7-3WBV-HT
VA50.4Z7-4.0VKF10
VA50.4Z7-4.0VKF10-N4
VA50.4Z7-4.0VKF11
VA50.4Z7-4.0VKF11-N4
VA50.4Z7-4WBV
VA50.4Z7-4WBV-HT
VA50.4Z7-5.0VKF10
VA50.4Z7-5.0VKF10-N4
VA50.4Z7-5.0VKF11
VA50.4Z7-5.0VKF11-N4
VA50.4Z7-6.0VKF10
VA50.4Z7-6.0VKF10-N4
VA50.4Z7-6.0VKF11
VA50.4Z7-6.0VKF11-N4
VA50.4Z7-6WBV
VA50.4Z7-6WBV-HT
VA50.4Z7-8.0VKF10
VA50.4Z7-8.0VKF10-N4
VA50.4Z7-8.0VKF11
VA50.4Z7-8.0VKF11-N4
VA50.4Z7-8WBV
VA50.4Z7-8WBV-HT
VA50.4Z7-NF-050H
VA50.4Z7-NF-075
VA50.4Z7-NF-100
VA50.4Z7-NF-125
VA50.4Z7-NF-150
VA50.4Z7-NF-200
VA50.4Z7-NF-250
VA50.4Z7-NF-300
VA50.4Z7-NF-400
VA50.4Z7-NM-100
VA50.4Z7-NM-125
VA50.4Z7-NM-150
VA50.4Z7-NM-200
VA50.4Z7-NM-250
VA50.4Z7-NM-300
VA50.4Z7-NM-400
VA50.4Z7-NR-150
VA50.4Z7-NR-200
VA50.4Z7-NR-250
VA50.4Z7-NR-300
VA50.4Z7-NR-400
VA50.4Z7-RF-050
VA50.4Z7-RF-075
VA50.4Z7-RF-100
VA50.4Z7-RF-125
VA50.4Z7-RF-150
VA50.4Z7-RF-200
VA50.4Z7-RF-250
VA50.4Z7-RF-300
VA50.4Z7-RM-100
VA50.4Z7-RM-125
VA50.4Z7-RM-150
VA50.4Z7-RM-200
VA50.4Z7-RM-250
VA50.4Z7-RM-300
VA50.4Z7-RR-150
VA50.4Z7-RR-200
VA50.4Z7-RR-250
VA50.4Z7-RR-300
VA50.4Z-8.0VKF10
VA50.4Z-8.0VKF10-N4
VA50.4Z-8.0VKF11
VA50.4Z-8.0VKF11-N4
VA50.4Z-8WBV
VA50.4Z-8WBV-HT
VA50.4Z-NF-050H
VA50.4Z-NF-050H-REV
VA50.4Z-NF-075
VA50.4Z-NF-100
VA50.4Z-NF-125
VA50.4Z-NF-150
VA50.4Z-NF-200
VA50.4Z-NF-250
VA50.4Z-NF-300
VA50.4Z-NF-400
VA50.4Z-NFB-075
VA50.4Z-NFB-100
VA50.4Z-NFB-125
VA50.4Z-NFB-150
VA50.4Z-NFB-200
VA50.4Z-NFB-250
VA50.4Z-NFB-300
VA50.4Z-NFB-400
VA50.4Z-NM-100
VA50.4Z-NM-125
VA50.4Z-NM-150
VA50.4Z-NM-200
VA50.4Z-NM-250
VA50.4Z-NM-300
VA50.4Z-NM-400
VA50.4Z-NMB-100
VA50.4Z-NMB-125
VA50.4Z-NMB-150
VA50.4Z-NMB-200
VA50.4Z-NMB-250
VA50.4Z-NMB-300
VA50.4Z-NMB-400
VA50.4Z-NR-100
VA50.4Z-NR-150
VA50.4Z-NR-200
VA50.4Z-NR-250
VA50.4Z-NR-300
VA50.4Z-NR-400
VA50.4Z-NRB-150
VA50.4Z-NRB-200
VA50.4Z-NRB-250
VA50.4Z-NRB-300
VA50.4Z-NRB-400
VA50.4ZR-0.5-0.5VKP-0.5
VA50.4Z-RF-050
VA50.4Z-RF-075
VA50.4Z-RF-100
VA50.4Z-RF-125
VA50.4Z-RF-150
VA50.4Z-RF-200
VA50.4Z-RF-250
VA50.4Z-RF-300
VA50.4Z-RM-100
VA50.4Z-RM-125
VA50.4Z-RM-150
VA50.4Z-RM-200
VA50.4Z-RM-250
VA50.4Z-RM-300
VA50.4Z-RR-150
VA50.4Z-RR-200
VA50.4Z-RR-250
VA50.4Z-RR-300
VA50.4Z-VKO30.060CN
VA50.4Z-VKO30.074CN
VA50.4Z-VKO30.084CN
VA50.4Z-VKO30.096CN
VA50.4Z-VKO31.060CU
VA50.4Z-VKO31.074CU
VA50.4Z-VKO31.084CU
VA50.4Z-VKO31.096CU
VA50.4Z-VKO50.100DN
VA50.4Z-VKO50.120DN
VA50.4Z-VKO50.145DN
VA50.4Z-VKO50.150CN
VA50.4Z-VKO51.100DU
VA50.4Z-VKO51.120DU
VA50.4Z-VKO51.145DU
VA50.4Z-VKO51.150CU
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Frequently Asked Questions
What does the “.4” in VA50.4 signify?
The “.4” specifies the electronic logic board version inside the SQM50 motor, which determines the stepping resolution, running time (typically 25s/90° for this series), and communication protocol with Siemens Burner Management Systems.
What do the “(24)”, “(220)”, “K”, “Z”, and “A3” designations mean?
“(24)” and “(220)” indicate actuators wound for 24V or 220V/230V AC power, respectively. Suffixes like “K”, “Z”, or “A3” designate specific internal configurations, usually involving unique auxiliary end switches or specialized potentiometers needed for different industrial controllers.
What is the difference between VKF, VKP, and WBV valves?
VKF valves are full flanged butterfly valves; VKP valves are proportional flow control valves designed for linear adjustment; WBV (Wafer Butterfly Valves) are ultra-compact valves designed to be “sandwiched” between existing pipe flanges.
What does the “-N4” suffix indicate?
The “-N4” indicates a NEMA 4 rating. This means the actuator enclosure is weatherproof and sealed against dust, rain, and hose-directed water, making it ideal for outdoor gas trains.
Are VKO models for gas or oil?
VKO designated models are specifically designed for oil combustion applications. Integrating the SQM50 actuator provides precise, high-torque oil flow control for dual-fuel or heavy oil-fired boilers.