Expansion Tank Ball Valve | 8080 Series | NPT | Full Port | DZR Lead-Free Brass | 600 PSI WOG
Expansion Tank Ball Valve | 8080 Series | NPT | Full Port | DZR Lead-Free Brass | 600 PSI WOG
RWV 8080 Series Expansion Tank Ball Valves are engineered for dependable performance in high-pressure, closed-loop hydronic, boiler, and industrial cooling systems. Designed with a full-port ball and 600 PSI WOG rating, these valves allow fast, leak-free isolation of expansion tanks without system shutdown—simplifying maintenance while enhancing safety.
Constructed from DZR (Dezincification-Resistant) lead-free brass and certified to NSF/ANSI 61 & 372 and AB1953 standards, the 8080FT valve offers superior corrosion resistance and long service life in harsh environments. A built-in high-flow hose drain with a tethered cap ensures quick, controlled draining, while an adjustable packing gland provides long-term sealing integrity under thermal cycling and pressure variations.
Key Features & Benefits
- 600 PSI WOG Rating — Ideal for hydronic, boiler, and industrial fluid isolation applications.
- Full-Port Ball Design — Maintains maximum flow capacity with minimal pressure drop.
- DZR Lead-Free Brass Body — Meets ASTM B927 C27453 and NSF-certified for potable water and corrosion resistance.
- High-Flow ½″ NH Drain — Integrated hose drain with chain-secured cap allows controlled draining and prevents loss.
- Adjustable Packing Gland — Ensures long-term leak-free performance and serviceability.
- Chrome-Plated Ball & PTFE Seats — Withstand scale, chemicals, and thermal cycling for smooth operation.
- Blow-Out-Proof Stem — Adds protection against stem ejection under pressure surges.
- Temperature Range — Operates from 15°F to 260°F; suitable for water, glycol, and thermal fluids with additives.
Working Conditions
| Parameter | Specification |
|---|---|
| Pressure Rating | 600 PSI WOG (Non-Shock) |
| Temperature Range | 15°F to 260°F (–9°C to 127°C) |
| Fluid Types | Water, Glycol, Thermal Fluids |
| Connections | FNPT (ASME B1.20.1) with ½″ NH Drain |
Dimensions
| Size | φA [in] | B [in] | C [in] | φD [in] | E [in] | F [in] | H [in] | L [in] | Weight [lb] |
|---|---|---|---|---|---|---|---|---|---|
| ½″ | ½-14 NPT | 0.63 | ¾-11.5 NH | 0.50 | 3.49 | 1.04 | 1.58 | 3.94 | 0.92 |
Material Construction
| Part | Material | Specification |
|---|---|---|
| Body | DZR Lead-Free Brass | ASTM B927 C27453 |
| Seat Retainer | Lead-Free Brass | ASTM B927 C27450 |
| Ball | Lead-Free Brass, Chrome-Plated | ASTM B927 C27450 |
| Seat | PTFE | - |
| Fixed End | DZR Lead-Free Brass | ASTM B927 C27453 |
| Stem | DZR Lead-Free Brass | ASTM B927 C27453 |
| Packing Ring | PTFE | - |
| Packing Nut | Brass | ASTM B124 C37700 |
| Handle | Aluminum | ASTM B85 |
| Screw | Steel, Zinc-Plated | ASTM A36 |
| Drain Cap | Brass | ASTM B283 C37700 |
| Drain Cap Gasket | EPDM Peroxide | NSF Approved |
| Tie | Rubber | - |
Warning (California Prop 65): This product can expose you to chemicals including lead, known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

