Water Heater Isolation Valve Kit | 3330AB Series | EzPress × FNPT | Full Port | Lead-Free Brass | 600 PSI WOG
Water Heater Isolation Valve Kit | 3330AB Series | EzPress × FNPT | Full Port | Lead-Free Brass | 600 PSI WOG
RWV 3330AB Series EzPress Water Heater Isolation Valve Kits deliver a professional-grade, lead-free solution for modern plumbing systems. Designed for durability, safety, and efficiency, this hybrid valve configuration combines press-fit convenience with the security of a threaded FNPT tailpiece — making it ideal for both residential and commercial water heater installations.
Constructed from ASTM B927 lead-free brass and certified to AB1953, NSF/ANSI/CAN 61 & 372 standards, the 3330AB Series provides unmatched reliability in potable water systems. Its full-port ball design, ¼-turn operation, and adjustable PTFE packing ensure long-lasting performance under demanding conditions.
Key Features & Benefits
- Lead-Free Certified — Complies with AB1953, NSF/ANSI/CAN 61 & 372 for drinking water safety.
- Full-Port Design — Provides unrestricted water flow with minimal pressure loss for optimal efficiency.
- ¼-Turn Operation — Enables fast, smooth shut-off with low torque for easy field use.
- Adjustable PTFE Packing — Delivers consistent sealing and extended service life.
- Blow-Out-Proof Stem — Prevents accidental failure under pressure and enhances safety.
- Hybrid Connection — EzPress × FNPT design combines tool-free press installation with reliable threaded performance.
- 600 PSI WOG Rating — Built to withstand high system pressures (non-shock).
- Color-Coded Handles — 3331AB (Red) for Hot Water and 3332AB (Blue) for Cold Water applications.
Specifications
| Connection Type | Pressure Rating | Operation | Flow Port Diameter | Valve Size |
|---|---|---|---|---|
| EzPress × FNPT (ASME B1.20.1) | 600 PSI WOG (Non-Shock) | ¼-Turn | 0.89″ | ¾″ NPT |
Dimensions & Weight
| Size | Φ [in] | C [in] | A [in] | H [in] | P [in] | Weight [lb] |
|---|---|---|---|---|---|---|
| ¾″ | ¾-14 NPT | 0.89 | 4.27 | 1.66 | 0.73 | 0.95 |
Material Construction
| Part | Material | Specification |
|---|---|---|
| Body | Lead-Free Brass | ASTM B927 C27450 |
| Fixed End | Lead-Free Brass | ASTM B927 C27450 |
| Ball | Lead-Free Brass, Chrome-Plated | ASTM B927 C27450 |
| Seat | PTFE | PTFE |
| O-Ring | EPDM Peroxide | NSF Approved |
| Stem | Lead-Free Brass | ASTM B927 C27450 |
| Packing Ring | PTFE | PTFE |
| Packing Nut | Brass | ASTM B283 C37700 |
| T-Handle* | Aluminum | ASTM B85 |
| Handle Nut | Steel, Zinc-Plated | ASTM A36 |
| Union Nut | Brass | ASTM B283 C37700 |
| Union | Lead-Free Brass | ASTM B927 C27450 |
| O-Ring | EPDM Peroxide | NSF Approved |
*3331AB: Red Handle (Hot), 3332AB: Blue Handle (Cold)
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.