Ball Valve with Drain & Relief Port | 3430AB Series | EzPress × FNPT | Full Port | Lead-Free Brass | 600 PSI WOG
Ball Valve with Drain & Relief Port | 3430AB Series | EzPress × FNPT | Full Port | Lead-Free Brass | 600 PSI WOG
RWV 3430AB Series Hydronic Ball Valves combine full-port performance, drain convenience, and high-BTU relief capacity in a compact, lead-free design. The EzPress × FNPT configuration allows clean, fast installation while minimizing space requirements in tankless water heater and hydronic system applications.
Manufactured from ASTM B927 lead-free brass and certified to NSF/ANSI/CAN 61 & 372 and AB1953 standards, the 3430AB Series provides long-term corrosion resistance and full compliance with potable water regulations. Available with 200K, 500K, or 2.7M BTU/hr relief ports, these valves simplify system maintenance and pressure relief requirements.
Key Features & Benefits
- Press × FNPT Connections — EzPress end ensures quick, flame-free installations while the FNPT outlet meets ASME B1.20.1 standards.
- Full-Port Flow Design — Maintains unrestricted flow for high-efficiency performance and minimal pressure loss.
- Integrated Drain & Relief Port — ¾″ port available in 200K, 500K, and 2.7M BTU/hr models simplifies draining and service.
- Quarter-Turn Blow-Out-Proof Stem — Provides smooth operation and long-term reliability under system pressure.
- Built-In Hose-End Drain with Cap — Allows easy purging and line flushing during installation or maintenance.
- Lead-Free Brass Construction — Certified to NSF/ANSI/CAN 61 & 372 and AB1953 for potable water use.
- Color-Coded Handles — Red (Hot, 3431AB) and Blue (Cold, 3432AB) for clear system identification.
Specifications
| Connection Type | Pressure Rating | Relief Port Models | Available Sizes |
|---|---|---|---|
| EzPress × FNPT | 600 PSI WOG (15°F–160°F); 150 PSI @ 366°F Press: 250 PSI (15°F–160°F) |
RAB (200K BTU/hr) • SAB (500K BTU/hr) • TAB (2.7M BTU/hr) | ¾″, 1″ |
Dimensions & Weight
| Size | ΦNPT [in] | ΦP [in] | A [in] | B [in] | C [in] | H [in] | Weight [lb] |
|---|---|---|---|---|---|---|---|
| ¾″ | ¾-14 NPT | 0.73 | 4.78 | 2.35 | 1.14 | 1.66 | 1.80 / 1.68 |
| 1″ | 1-11.5 NPT | 0.98 | 4.99 | 2.54 | 1.35 | 2.11 | 1.93 / 1.80 |
Material Construction
| Part | Material | Specification |
|---|---|---|
| Body | Lead-Free Brass | ASTM B927 C27450 |
| Fixed End | DZR Lead-Free Brass | ASTM B927 C27453 |
| Ball | Lead-Free Brass, Chrome-Plated | ASTM B927 C27450 |
| Seat | PTFE | PTFE |
| Stem | Lead-Free Brass | ASTM B927 C27450 |
| Packing Ring | PTFE | PTFE |
| Packing Nut | Brass | ASTM B124 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 |
| Drain Cap | Brass | ASTM B283 C37700 |
| Drain Gasket | EPDM Peroxide | NSF Approved |
3431AB (Hot) • 3432AB (Cold) — available with RAB, SAB, or TAB relief port configurations.
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.