Top Valve Back Pressure Valve; 15–150 PSIG, PVC, 3/4″ NPT
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Top Valve Back Pressure Valve; 15–150 PSIG, PVC, 3/4″ NPT
The Top Valve series of diaphragm‑style back pressure valves is designed to ensure accurate chemical metering and protect downstream piping. This PVC model provides stable back pressure for metering pumps, improving dosing accuracy and preventing siphoning. The valve features a PTFE‑laminated, EPDM‑backed diaphragm and a CPVC Corzan top for enhanced chemical resistance.
Key Features
- Adjustable back pressure range from 15 to 150 PSIG
- 3/4″ female NPT inlet and outlet connections
- PVC body with CPVC Corzan top for chemical‑resistant performance
- PTFE‑laminated, EPDM‑backed diaphragm
- Factory set pressure: 50 PSIG (unless otherwise specified)
- NSF/ANSI 61 certified drinking‑water system component
Technical Specifications
- Model Number: TVBP75‑PVC
- Material — Body: PVC
- Material — Top: CPVC Corzan
- Diaphragm: PTFE‑laminated, EPDM‑backed
- Connection Size: 3/4″ NPT (F), inlet and outlet
- Valve Type: Back pressure valve
- Adjustable Pressure Range: 15–150 PSIG
- Factory Set Pressure: 50 PSIG
- Maximum Pressure: 150 PSIG @ 70°F (21°C)
- Maximum Temperature: 140°F (60°C)
- Gauge Port: Not equipped (optional)
- Certifications: NSF/ANSI 61
This back pressure valve is ideal for metering pump installations, chemical feed systems, water treatment, and any application requiring stable back pressure to maintain accurate dosing performance.
| Product Type: | Back Pressure Valve |
| Brand: | Primary Fluid Systems |
| Product Line: | Top Valve |
| Material: | PVC |
| Temperature Range: | 140°F (60°C) Maximum |
| Housing: | PVC Body; CPVC Corzan Top |
| Max Pressure (PSI): | 150 psi (10.4 bar) @ 70 °F (21 °C) |
| Diaphragm: | PTFE Laminated EPDM Backed |
| Connections: | 3/4" NPT(F) |
