"Our job is helping you do your job"
Designed for app-connected backflow assembly testing, this 5-valve kit sends line and differential pressure readings to a phone through Bluetooth for use with the MachBackflow app. It features a rechargeable Li-Ion battery with about 16 hours of on-time, a weatherproof enclosure, and a 200 PSIG pressure rating.
Designed for app-connected backflow assembly testing, this 5-valve kit sends line and differential pressure readings to a phone through Bluetooth for use with the MachBackflow app. It features a rechargeable Li-Ion battery with about 16 hours of on-time, a weatherproof enclosure, and a 200 PSIG pressure rating.
The Model 855 Digital Backflow Test Kit is designed with user experience in mind. Its digital capabilities allow for the precise reading of ΔP and line pressures, as well as the accurate calculation of the opening point of Pressure Vacuum Breakers (PVB) with precise accuracy. The MachBackflow app further enhances this experience by enabling users to create and maintain a comprehensive database of customers and previously tested assemblies. This streamlined workflow allows for quick access to data, efficient test reporting, and easy sharing of results.
A standout feature of the Model 855 is its integration with the MachBackflow app, available for both Android and iOS devices. This app brings digital ΔP and line pressure readings directly to your smartphone, simplifying the recording and management of test values. With basic features included for the lifetime of the product and a 30-day trial of premium subscription features, users can enjoy the convenience of autofilling customer and assembly information, downloading test data for easy review, and generating shareable PDFs.
For professionals familiar with the Model 845-5 test kit, the transition to the Model 855 promises ease and familiarity without compromising on the advanced digital features that set it apart. The identical valve configuration ensures that users can switch to the new model without a steep learning curve. The inclusion of special programs for capturing PVB air inlet opening points and the ability to save all test results to the cloud demonstrates the commitment of Mid-West Instrument to innovation and user satisfaction.
Features
Premium features
Applications
| Gauge Type | Digital differential and line pressure |
| Working Pressure | 200 PSIG |
| Connectivity | Bluetooth® |
| Mobile App | MachBackflow (Android and iOS) |
| Battery | Non-serviceable rechargeable Li-Ion |
| Battery Run Time | Approximately 16 hours (fully charged) |
| Charge Time | Approximately 4 to 5 hours |
| Charging Port | Weatherproof USB-C |
| Charging Temperature Range | 32 to 122°F (0 to 50°C) |
| Auto Shutdown | After 30 minutes when not connected to a mobile device |
| Thread Mount | Standard 1/4"-20 |
| Enclosure | Weatherproof and impact-resistant |
| Gauge Type | Digital differential and line pressure |
| Working Pressure | 200 PSIG |
| Connectivity | Bluetooth® |
| Mobile App | MachBackflow (Android and iOS) |
| Battery | Non-serviceable rechargeable Li-Ion |
| Battery Run Time | Approximately 16 hours (fully charged) |
| Charge Time | Approximately 4 to 5 hours |
| Charging Port | Weatherproof USB-C |
| Charging Temperature Range | 32 to 122°F (0 to 50°C) |
| Auto Shutdown | After 30 minutes when not connected to a mobile device |
| Thread Mount | Standard 1/4"-20 |
| Enclosure | Weatherproof and impact-resistant |
