994
Discontinued - Replaced By: 994-FS
Reduced Pressure Zone Assembly Backflow Preventers, Stainless Steel
Series 994 Reduced Pressure Zone Assemblies prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure. It consists of a stainless steel body construction with stainless steel internal parts. The bottom-mounted relief valve is located between the two check valves, making it suitable for installations against an outside wall. Series 994 has a compact design with a short lay length, ideal for retrofit installations. The 994 is designed for health hazard applications. Check with local water authorities for installation requirements. Maximum Working Pressure: 175psi (12.06 bar).
Flood alert feature available with add-on retrofit connection kit, compatible with BMS and cellular communication.
Features
- Stainless steel body provides strength, resists corrosion, and weighs less than competitive designs
- Bottom-mounted relief valve reduces clearance requirements when installed against an outside wall
- Torsion spring check valves provide maximum flow at low pressure drop
- Balanced rolling diaphragm on relief valve lowers maintenance costs
Literature
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- 994, 994RPDA - Repair Kits Parts Breakdown
- Flyer - Flood Detection for RPZ/RPDA Backflow Preventers (French)
- Flyer - Flood Detection for RPZ/RPDA Backflow Preventers with Flood Sensor
- Installation Instructions - 994, 994RPDA
- Installation Instructions - BMS Sensor Retrofit Connection Kit - 994, 957, 957RPDA, LF957RPDA, C400, C500, LFC500, 4000SS, 5000SS
- Installation Instructions - Cellular Sensor Retrofit Connection Kit - 994, 957, 957RPDA, LF957RPDA, C400, C500, LFC500, 4000SS, 5000SS
- Relief Valve Discharge Rates - 009, 909, 919, 957, 994
- Specification Sheet - 994
- Specification Sheet - Watts Air Gaps, Elbows and Test Cocks
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. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:
| ASSE | CSA | FM Approvals | NSF |
| UL | ULC | USC | WQA |