Siemens Building Technology 656-0012 Valve Assembly
The Siemens Building Technology 656-0012 is a precision-engineered normally closed pneumatic valve assembly designed for high-performance fluid control in terminal unit applications. Part of the Powermite series, this 2-way globe valve features a 1/2-inch line size and a 2.1 Cv flow coefficient, making it ideal for managing hot water, chilled water, or steam in fan coil units, convectors, and reheat coils. The 10-15 psi pneumatic actuator range ensures responsive modulation, while the 45-degree flare connection facilitates a secure, leak-resistant fit in tight mechanical spaces. Built with a durable brass body and a stainless steel stem, the 656-0012 incorporates a dual-sealing packed design to handle the higher-pressure demands often found in commercial high-rise buildings. The replaceable soft disc provides a bubble-tight shutoff to prevent energy loss and ghost flow during the off-cycle. Professionals value this assembly for its 1.0-inch stroke and compact footprint, which allows for effortless installation within restricted cabinet enclosures.
Key Benefits for Technicians- Efficient Flow Control: The 2.1 Cv rating is optimized for precise throttling in small-bore hydronic and steam systems.
- Reduced Maintenance: Features a stainless steel stem to resist corrosion and a replaceable disc for easy field servicing without removing the valve body.
- Flexible Piping: The pneumatic actuator can be rotated 360 degrees, allowing for versatile control air line positioning.
- High Close-Off Reliability: Designed to maintain normally closed integrity under standard operating pressures in HVAC terminal units.
- Compact Housing: Small overall dimensions ensure compatibility with space-constrained fan coil cabinets.
Is the Siemens 656-0012 suitable for steam applications?
Yes, this Siemens pneumatic valve is engineered for both water and steam service, utilizing materials capable of withstanding typical terminal unit temperatures.
Can I replace the seal or disc on this assembly?
The 656-0012 valve assembly is designed for serviceability. The upper packing and valve disc can be replaced in the field, which minimizes system downtime during routine maintenance.
What is the fail-safe position for this model?
This specific model is a Normally Closed (NC) assembly, meaning it will return to the closed position upon loss of pneumatic control air, preventing unintended heating or cooling.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $169.05
-65%$169.05
$59.17Siemens Building Technology 656-0012 Valve Assembly
The Siemens Building Technology 656-0012 is a precision-engineered normally closed pneumatic valve assembly designed for high-performance fluid control in terminal unit applications. Part of the Powermite series, this 2-way globe valve features a 1/2-inch line size and a 2.1 Cv flow coefficient, making it ideal for managing hot water, chilled water, or steam in fan coil units, convectors, and reheat coils. The 10-15 psi pneumatic actuator range ensures responsive modulation, while the 45-degree flare connection facilitates a secure, leak-resistant fit in tight mechanical spaces. Built with a durable brass body and a stainless steel stem, the 656-0012 incorporates a dual-sealing packed design to handle the higher-pressure demands often found in commercial high-rise buildings. The replaceable soft disc provides a bubble-tight shutoff to prevent energy loss and ghost flow during the off-cycle. Professionals value this assembly for its 1.0-inch stroke and compact footprint, which allows for effortless installation within restricted cabinet enclosures.
Key Benefits for Technicians- Efficient Flow Control: The 2.1 Cv rating is optimized for precise throttling in small-bore hydronic and steam systems.
- Reduced Maintenance: Features a stainless steel stem to resist corrosion and a replaceable disc for easy field servicing without removing the valve body.
- Flexible Piping: The pneumatic actuator can be rotated 360 degrees, allowing for versatile control air line positioning.
- High Close-Off Reliability: Designed to maintain normally closed integrity under standard operating pressures in HVAC terminal units.
- Compact Housing: Small overall dimensions ensure compatibility with space-constrained fan coil cabinets.
Is the Siemens 656-0012 suitable for steam applications?
Yes, this Siemens pneumatic valve is engineered for both water and steam service, utilizing materials capable of withstanding typical terminal unit temperatures.
Can I replace the seal or disc on this assembly?
The 656-0012 valve assembly is designed for serviceability. The upper packing and valve disc can be replaced in the field, which minimizes system downtime during routine maintenance.
What is the fail-safe position for this model?
This specific model is a Normally Closed (NC) assembly, meaning it will return to the closed position upon loss of pneumatic control air, preventing unintended heating or cooling.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Siemens Building Technology 656-0012 is a precision-engineered normally closed pneumatic valve assembly designed for high-performance fluid control in terminal unit applications. Part of the Powermite series, this 2-way globe valve features a 1/2-inch line size and a 2.1 Cv flow coefficient, making it ideal for managing hot water, chilled water, or steam in fan coil units, convectors, and reheat coils. The 10-15 psi pneumatic actuator range ensures responsive modulation, while the 45-degree flare connection facilitates a secure, leak-resistant fit in tight mechanical spaces. Built with a durable brass body and a stainless steel stem, the 656-0012 incorporates a dual-sealing packed design to handle the higher-pressure demands often found in commercial high-rise buildings. The replaceable soft disc provides a bubble-tight shutoff to prevent energy loss and ghost flow during the off-cycle. Professionals value this assembly for its 1.0-inch stroke and compact footprint, which allows for effortless installation within restricted cabinet enclosures.
Key Benefits for Technicians- Efficient Flow Control: The 2.1 Cv rating is optimized for precise throttling in small-bore hydronic and steam systems.
- Reduced Maintenance: Features a stainless steel stem to resist corrosion and a replaceable disc for easy field servicing without removing the valve body.
- Flexible Piping: The pneumatic actuator can be rotated 360 degrees, allowing for versatile control air line positioning.
- High Close-Off Reliability: Designed to maintain normally closed integrity under standard operating pressures in HVAC terminal units.
- Compact Housing: Small overall dimensions ensure compatibility with space-constrained fan coil cabinets.
Is the Siemens 656-0012 suitable for steam applications?
Yes, this Siemens pneumatic valve is engineered for both water and steam service, utilizing materials capable of withstanding typical terminal unit temperatures.
Can I replace the seal or disc on this assembly?
The 656-0012 valve assembly is designed for serviceability. The upper packing and valve disc can be replaced in the field, which minimizes system downtime during routine maintenance.
What is the fail-safe position for this model?
This specific model is a Normally Closed (NC) assembly, meaning it will return to the closed position upon loss of pneumatic control air, preventing unintended heating or cooling.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
