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Tankless Water Heater Valve Kit | 3470AB Series | PEX × FNPT | Lead-Free Brass | 600 WOG Rated
$242.90
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Tankless Water Heater Valve Kit | 3470AB Series | PEX × FNPT | Lead-Free Brass | 600 WOG Rated
RWV 3470AB Lead-Free Brass PEX Tankless Water Heater Valve Kits offer safe, efficient, and code-compliant performance for residential and commercial hot water systems. Each kit combines shut-off, draining, and pressure relief into one compact assembly—simplifying installation and maintenance while ensuring full compliance with potable water standards.
Key Features & Benefits
- Lead-Free Certified Brass — Constructed from ASTM B927 C27450 brass and certified to NSF/ANSI/CAN 61 & 372 and AB1953 standards for safe drinking water use.
- Full Port ¼-Turn Design — Provides unobstructed flow and easy shut-off with smooth, corrosion-resistant operation.
- Integrated Relief Port — Includes ¾″ relief connection (3470RAB) rated for 200K BTU/hr output to protect tankless water heater systems.
- PEX Connection Advantage — F1960 PEX end × FNPT tailpiece ensures fast, secure connections without soldering or threading.
- High Pressure & Temperature Rating — 600 WOG (non-shock) for valve body and stem; PEX rated 300 psi from 15–160 °F / 150 psi at 200 °F.
- Color-Coded Handles — 3471AB (red) for hot water and 3472AB (blue) for cold water systems.
Dimensions & Weight
| Size | Φ [in] | ΦP [in] | A [in] | B [in] | H [in] | Weight [lb] |
|---|---|---|---|---|---|---|
| ¾″ | ¾ – 14 NPT | 0.60 | 4.69 | 2.35 | 1.66 | 1.47 / 1.35 * |
* 3471AB (Hot) / 3472AB (Cold)
Pressure / Temperature Rating
| Valve Body and Stem | |
|---|---|
| 600 psi from 15 °F to 160 °F | 150 psi max at 366 °F |
| PEX Connection | |
| 300 psi from 15 °F to 160 °F | 150 psi max at 200 °F |
Material Composition
| # | Part | Material | Specification |
|---|---|---|---|
| 1 | Body | Lead-Free Brass | ASTM B927 C27450 |
| 3 | Ball | Lead-Free Brass / Chrome Plated | ASTM B927 C27450 |
| 4 | Seat | PTFE | PTFE |
| 5 | Stem | Lead-Free Brass | ASTM B927 C27450 |
| 7 | Packing Nut | Brass | ASTM B124 C37700 |
| 8 / 11 | Handle / T-Handle | Aluminum | ASTM B85 |
| 9 / 10 | Handle Hardware | Steel / Zinc Plated | ASTM A36 |
| 13 / 17 | Union Nut / Drain Cap | Brass | ASTM B283 C37700 |
| 14 | Union | Lead-Free Brass | ASTM B927 C27450 |
| 15 / 18 | O-Ring / Drain Gasket | EPDM Peroxide (NSF Approved) | — |
| 16 | Cap Retainer | Rubber | — |
Applications: Ideal for installing or maintaining tankless water heaters—combining isolation, purge, and pressure relief functions in one certified, lead-free assembly.