6L SUS304 Stainless Steel Inner Tank Precision Leak Free Welding Water Leakage Inspection
6L SUS304 Stainless Steel Inner Tank Precision Leak-Free Welding Water Leakage Inspection
Technical Parameters:
| Shell Plate Thickness: | 1.2mm~2.5mm |
| Inner Surface Roughness: | Mirror-polished finish (Ra ≤ 0.8 μm) reduces scale accumulation |
| Surface Treatment: | Internal Wall Passivation Anti-rust |
| Barrel Structure: | Cylindrical Body + Two End Closures: Integrated Spin-Forming and Deep Drawing |
| Inlet & Outlet Port: | Integrated hot and cold outlets, stamped in a single piece—no secondary welding |
| Applicable Water Pressure: | 0.1MPa~0.7MPa |
| Magnesium Rod/Drain Port: | G1/2" / M18×1.5 |
| Heating Element Flange: | DN80/DN100, 4-Hole / 6-Hole National Standard Flanges; dimensions can be customized via OEM based on technical drawings |
| Inspection Before Shipment: | 100% inspection for hydraulic pressure and airtightness, only qualified products are permitted to be placed in storage |
| Compatible Heater Voltage: | Universal Inner Tank, 110V/220V Storage-Type Electric Water Heater |
Product Description:
Our stainless steel inner tank complies with China national standard GB/T20289 & QB/T4101, made of food-grade SUS304 stainless steel, nickel welding, pass strict hydrostatic & burst pressure test, fit global 110V/220V storage electric water heater.
FAQ:
Q1: What stainless steel grade do you use for inner tanks?
A1: Mainly SUS304 food-grade stainless steel, customized SUS316 for high-chloride water area.
Q2: Is your tank material anti-rust and anti-corrosion?
A2: Yes, with surface passivation treatment to resist scale and water corrosion.
Q3: Is the raw material food contact safe?
A3: All raw steel complies with food-grade stainless standard.
Q4: Will inner tank rust easily after long-time usage?
A4: Proper water + magnesium rod protection ensures long anti-rust lifespan.
Q5: Are the inlet & outlet ports integrally formed?
A5: Cold/hot water nozzle one-piece stamping forming, no secondary welding.
Q6: Will welding seam leak after long-term water soaking?
A6: Every tank passes 100% airtight hydrostatic test before delivery.
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