The Siemens Combustion VAXX Series consists of specialized valve assemblies that are supplied without an actuator. These “Valve-Only” (VA) assemblies provide the robust mechanical foundation needed for advanced industrial burner systems, allowing for the custom integration of specific Siemens SQM actuators in the field. Designed to integrate massive WBV wafer valves, VKO oil valves, and precision PBA premix manifolds, the VAXX series offers the ultimate flexibility for complex or highly customized combustion gas trains.
Technical Specifications
- Product Family: Siemens Combustion VAXX Series (Actuator-less Assemblies)
- Actuator Included: None (Designed for field-mounting of Siemens SQM Actuators)
- Valve Compatibility: WBV Wafer (Up to 16″), VKO Oil Valves, and PBA Manifolds
- Hardware Included: Comes with specialized mounting bracket and rigid coupling tailored for specific actuator models
- Applications: Custom Fuel/Air Ratio Control, Dual-Fuel Boilers, Advanced Premix Systems
Key Features & Benefits
- Maximum Customization: The “XX” designation means the assembly ships without an actuator, allowing technicians to pair these heavy-duty valves with the exact torque profile and electronic board needed for their specific burner controller.
- Pre-Engineered Mounting: Even without the motor, every VAXX assembly includes the necessary engineered bracket and zero-backlash coupling required to mate seamlessly with Siemens SQM series actuators.
- Specialized Sub-Configurations: Includes specific sub-series (like “S4”, “S5”, “SP”) that dictate the exact bracket geometry needed to mount specific actuator families (e.g., SQM50 vs SQM40) onto the valve body.
- Comprehensive Oil Integration: Features a massive range of VKO designated models, providing the heavy-duty mechanical foundation required for high-capacity industrial oil combustion.
- High-Temperature (HT) Options: Assemblies ending in “-HT” utilize specialized barrier materials and seals to ensure the valve body can withstand elevated process temperatures prior to the actuator being mounted.
VAXX Parts We Provide
VAXX-10WBV-S4
VAXX-12WBV-HT-S4
VAXX-12WBV-S4
VAXX-14WBV-HT-S4
VAXX-14WBV-S4
VAXX-16WBV-SP
VAXX-2.5WBV-HT-S4
VAXX-2.5WBV-HT-S5
VAXX-2.5WBV-S4
VAXX-2WBV-HT-S4
VAXX-2WBV-HT-S5
VAXX-2WBV-S4
VAXX-3WBV-HT-S4
VAXX-3WBV-HT-S5
VAXX-3WBV-S4
VAXX-4WBV-HT-S4
VAXX-4WBV-HT-S5
VAXX-4WBV-S4
VAXX-6WBV-HT-S4
VAXX-6WBV-HT-S5
VAXX-6WBV-S4
VAXX-8WBV-HT-S4
VAXX-8WBV-S4
VAXX-NF-050H
VAXX-NF-075
VAXX-NF-100
VAXX-NF-125
VAXX-NF-150
VAXX-NF-200
VAXX-NF-250
VAXX-NF-300
VAXX-NF-400
VAXX-NM-100
VAXX-NM-125
VAXX-NM-150
VAXX-NM-200
VAXX-NM-250
VAXX-NM-300
VAXX-NM-400
VAXX-NR-100
VAXX-NR-150
VAXX-NR-200
VAXX-NR-250
VAXX-NR-300
VAXX-NR-400
VAXX-VKO10.005AN
VAXX-VKO10.011AN
VAXX-VKO10.019AN
VAXX-VKO10.029AN
VAXX-VKO10.036AN
VAXX-VKO10.046AN
VAXX-VKO10.056AN
VAXX-VKO10.070AN
VAXX-VKO11.005AU
VAXX-VKO11.011AU
VAXX-VKO11.019AU
VAXX-VKO11.029AU
VAXX-VKO11.036AU
VAXX-VKO11.046AU
VAXX-VKO11.056AU
VAXX-VKO11.070AU
VAXX-VKO30.060CN
VAXX-VKO30.074CN
VAXX-VKO30.084CN
VAXX-VKO30.096CN
VAXX-VKO31.060CU
VAXX-VKO31.074CU
VAXX-VKO31.084CU
VAXX-VKO31.096CU
VAXX-VKO50.100DN
VAXX-VKO50.120DN
VAXX-VKO50.145DN
VAXX-VKO50.150CN
VAXX-VKO51.100DU
VAXX-VKO51.120DU
VAXX-VKO51.145DU
VAXX-VKO51.150CU
We ship these products worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for help.
Frequently Asked Questions
What makes the VAXX series different from other VA assemblies?
The “XX” designation indicates that the assembly is supplied without an actuator. It consists of the valve body, mounting bracket, and rigid coupling, ready for a technician to mount a specific actuator in the field.
What do the “S4”, “S5”, and “SP” suffixes mean?
Because there is no actuator included, these suffixes identify which Siemens actuator family the included mounting hardware is designed to accept. For example, “S4” typically designates hardware intended to mate with an SQM40/SQM41 actuator, while “S5” designates hardware for an SQM50 series actuator.
Are VKO models for gas or oil?
VKO designated models are specifically designed for oil combustion applications. These assemblies provide the heavy-duty mechanical valve foundation required for high-capacity industrial dual-fuel or heavy oil-fired boilers.
What does the “-HT” suffix mean?
The “-HT” suffix indicates a High Temperature model. These assemblies include specialized seals and components within the valve body and may include thermal standoff brackets to protect the future mounted actuator from excessive heat transfer.
What are the “NF”, “NM”, “NR” designations?
These codes identify Premix Blower Adapters (PBAs). Instead of a standard flow valve, these assemblies feature a specialized manifold designed to introduce and balance fuel gas directly into an air stream immediately prior to a premix blower, ensuring a perfect stoichiometric mix.