174A
Boiler Pressure Relief Valves and Flood Sensor
174A
Boiler Pressure Relief Valves and Flood Sensor
Features
- Packaged with SentryPlus Alert discharge line flood sensor
- Bronze body
- NPTF female inlet and outlet connections
- Integrates with the Sensor Control Monitor to deliver maintenance alerts to BAS via RS-485 Modbus or the Nexa platform by Wi-Fi connectivity
- Above drain seat to prevent sediment from fouling the valve
- Non-mechanical seat-to-disc alignment will not stick or freeze
- Test lever
- Valve is designed for emergency safety relief and shall not be used as an operating control
- Standard Pressure Setting: 30psi (206.9 kPa)
- Pressure Range: In 5psi (34.5 kPa) increments from 30 to 150psi (2 to 10 bar)
Nexa pairs integrated sensing hardware with free, upgradable software to empower facilities with unprecedented visibility and control over their water systems, helping teams protect assets, deliver consistent performance, and drive measurable ROI.
Learn more about Nexa
Series 174A Boiler Pressure Relief Valves now come packaged with SentryPlus Alert® discharge line flood sensors for monitoring unwanted valve discharges once activated. When paired with an add on connection kit, the sensor is activated to relay alerts for potential flooding events. Connection kit options include BMS and the Sensor Control Monitor which enables integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.
Series 174A valves provide higher capacity pressure protection for a variety of boiler equipment in various commercial applications. Valves are ASME rated.
To learn more visit: https://www.watts.com/smart-relief-valve
Approval/Certification Information
For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. Some certification agencies allow you to search by product name and brand.
Literature
Select a Model
Select options below to identify the UPC, Order Code, and Repair Kit for a specific 174A
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| Model | Used On - Series or Model | Kit Contents |
|---|---|---|
|
FS-RV-BMS-RFK-1 1/2
Activation Kit |
740, 174A, LF340, LF174A, LF340, 340, 342</br></br> |
Sensor Activation Module with Cable, Ground Wire, Power Adapter, Dielectric Grease, and Flood Sensor</br> |
|
FS-RV-BMS-RFK-1
Activation Kit |
740, LF40L, LFN240, LF140, 174A, LF174A, N240, 40L, LL40XL, 140</br></br> |
Sensor Activation Module with Cable, Ground Wire, Power Adapter, Dielectric Grease, and Flood Sensor</br> |
|
SCM-RELIEF-CONN KIT
Activation Kit |
374A, LF40L, 174A, LF174A, 40L, LFLL40XL, LF140, LL40XL, 140, 740, LF340, 340, 342</br></br> |
Sensor Control Monitor, 2 Sensor Cables, Power Adapter, Mounting Feet, and Quick Start Guide</br> |
|
FS-RV-BMS-RFK-1 1/4
Activation Kit |
740, 174A, LF174A</br></br> |
Sensor Activation Module with Cable, Ground Wire, Power Adapter, Dielectric Grease, and Flood Sensor</br> |
|
FS-RV-BMS-RFK-2
Activation Kit |
740, 174A, LF174A</br></br> |
Sensor Activation Module with Cable, Ground Wire, Power Adapter, Dielectric Grease, and Flood Sensor</br> |
|
FS-RV-BMS-RFK-3/4
Activation Kit |
374A, LF40L, 174A, LF174A, 40L, LF40L, LFLL40XL, LF140, LF174A, LL40XL, 140</br></br> |
Sensor Activation Module with Cable, Ground Wire, Power Adapter, Dielectric Grease, and Flood Sensor</br> |