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3402AB Lead Free Brass Solder Tankless Water Heater Valve Kit
The 3402AB Lead-Free Brass Solder Tankless Water Heater Valve Kit is engineered for reliable cold-side operation in tankless water heater installations. Featuring a solder end x FNPT tailpiece configuration and constructed from high-quality lead-free brass, this valve delivers durable performance, easy serviceability, and code compliance for both residential and commercial applications.
Designed with installer convenience in mind, the 3402AB comes equipped with an integral relief valve port, hose-end drain/purge valve, and full port for unrestricted flow. This kit is certified to AB1953, NSF/ANSI/CAN 61 & 372, ensuring peace of mind with every installation.
🔧 Key Features:
- Model: 3402AB – Cold valve operation with blue handle
- Connection Type: Solder x FNPT (ASME B1.20.1-NPT)
- Pressure Rating: 600# WOG (non-shock)
- Operation: ¼ turn
- Material: Lead-free brass construction
- Seat Material: Virgin PTFE
- Relief Valve Port: Integral ¾"
- Drain/Purge Valve: Integral hose-end with cap
- Stem: Blow-out proof
- Packing: Adjustable
- Port: Full port for maximum flow
🔥 Compatible Relief Valve Options:
- 3400RAB: 200K BTU/hr
- 3400SAB: 500K BTU/hr
- 3400TAB: 2.7M BTU/hr
Di m e n s i o n , Weight
| Size | Φ [in] | ΦSC [in] | ΦS [in] | ΦP [in] | A [in] | B [in] | C [in] | H [in] | Wt.* [lb] |
|---|---|---|---|---|---|---|---|---|---|
| 3/4” | 3/4 - 14NPT | 3/4 - 14NPT | 0.877-0.881 | 0.73 | 4.28 | 2.35 | 1.14 | 1.66 | 1.74 / 1.64 |
| 1” | 1 - 11.5NPT | 3/4 - 14NPT | 1.128-1.131 | 0.98 | 4.64 | 2.54 | 1.35 | 2.11 | 1.89 / 1.77 |
Material
| Part | Material | Specification |
|---|---|---|
| 1 | Body | Lead Free Brass ASTM B927 C27450 |
| 2 | Fixed end | Lead Free Brass ASTM B927 C27450 |
| 3 | Ball | Lead Free Brass / Cr plated ASTM B927 C27450 |
| 4 | Seat | PTFE PTFE |
| 5 | Stem | Lead Free Brass ASTM B927 C27450 |
| 6 | Packing ring | PTFE PTFE |
| 7 | Packing nut | Brass ASTM B124 C37700 |
| 8 | T-handle | Aluminum ASTM B85 |
| 9 | Handle nut | Steel /Zn plated ASTM A36 |
| 10 | Handle screw | Steel /Zn plated ASTM A36 |
| 11 | Handle | Aluminum ASTM B85 |
| 12 | Packing ring | PTFE PTFE |
| 13 | Stem | Lead Free Brass ASTM B927 C27450 |
| 14 | Union nut | Brass ASTM B283 C37700 |
| 15 | Union | Lead Free Brass ASTM B927 C27450 |
| 16 | O-ring | EPDM Perox NSF approved |
| 17 | Cap retainer | Rubber - |
| 18 | Drain cap | Brass ASTM B283 C37700 |
| 19 | Drain gasket | EPDM Perox NSF approved |
| 20 | Ball | Lead Free Brass / Cr plated ASTM B927 C27450 |
| 21 | Seat | PTFE PTFE |
| 22 | Fixed end | Lead Free Brass ASTM B927 C27450 |