福建省厦门市建设大厦2509单元 邮编：361001 电话：592-2121956 传真：592-2122287 E-mail: 666@h6688.com 微信：18906039241
Room 2509, Construction Building, Xiamen, Fujian 361001, China Tel: (86-592) 212-1956 Fax: (86-592)212-2287 E-mail: 666@h6688.com
福建省厦门市建设大厦2509单元 邮编：361001 电话：592-2121956 传真：592-2122287 E-mail: 666@h6688.com 微信：18906039241
Room 2509, Construction Building, Xiamen, Fujian 361001, China Tel: (86-592) 212-1956 Fax: (86-592)212-2287 E-mail: 666@h6688.com
| 美国进口 Imported from USA |
NRF-VS变速控制器（已停产） |
 美国贝尔-高赛特 Bell & Gossett |
Designed for use in hydronic heating and cooling applications. The temperature of the water is controlled by regulating the speed of the pump which injects water from a different temperature water loop (Primary loop) into a controlled loop (Secondary loop).
As the speed of the pump increases, more water is sent into the Secondary loop, resulting in a secondary loop water temperature change.
The NRF-VS Control is available either installed on a B&G NRF-22 or as a field mountable controller that can be installed onto a B&G wet rotor in the field. The snap-on design allows the NRF-VS to be quickly attached to a standard B&G wet rotor circulator.
Models – Part Number (see Brochure A-142 for dimensions & weights)
| NRF-VS – 109410 | NRF-22VS – 103416 |
Submittals
Bell & Gossett offers several useful engineering tools for easy sizing of every area of a building. Simple to navigate software gives you accurate information and up-to-date documentation downloadable straight into your submittal package.
Some tools require a registered account: New User Registration | Existing User Password Help
| ESP-Design Plus | Bell & Gossett: Multi-Stage, Pressure Booster Packages, Wastewater, Vertical Turbines |
| ESP-Plus | Bell & Gossett Pump Selection: Circulators, End Suction, Closed-Coupled, Inline, Double Suction |
| ESP-Tanks | Bell & Gossett Compression/Expansion Tanks and Accessories (downloadable app) |
| ESP-Thermal | Bell & Gossett Gasket Plate & Frame and, Brazed Plate Heat Exchangers |
| ESP-UTUBE | Bell & Gossett U-Tube Heat Exchangers |
| ESP-Parts | Parts Selection |
| Steam-2000 | Steam 2000 Selection |
| Steam-1140 | Series 1140 Steam Service Regulators |
| Water-1140 | Series 1140 Water Service Regulators |
| Steam-Traps | Steam Traps Selection |
| CAD Drawings | CAD Drawings |
| System Syzer | System Syzer (available online, PC download, and iOS app) |
| System Syzer Psychrometry | System Sizing related to coil cooling (link downloads .exe file) |
| Steam-Pipe | Steam Pipe Sizing |
| Steam-Loss | Steam Loss Through Failed Trap |
| Flash-Steam | Flash Steam Sizing |
| Condensate-Pipe | Condensate Pipe Sizing |
| Mobile Catalog iOS | iPhone & iPad Mobile Product Catalog |
| Mobile Catalog Android | Android Device Mobile Product Catalog |
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All the product information in this website is based on the information provided by the manufacturers and is for reference only. Hirsch is not responsible for the accuracy of the information. All the information is subject to change without notice due to the manufacturers continuous product improvement. For any questions or concerns, please contact us.
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Copyright© 1997-2016 Hirsch Pipe & Supply
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