Qingdao Sande Technology Co., LTD
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Precision Cast/Forged Aluminum Housing Components for Wall-Mounted Boiler Pressure Switches
Product Overview
Our precision cast and forged aluminum housing components are engineered to meet the stringent demands of wall-mounted boiler pressure switches, ensuring exceptional durability, thermal stability, and airtight sealing performance. These critical safety components are manufactured using advanced casting (die-cast/sand-cast) and forging processes, making them ideal for OEM boiler manufacturers and replacement part suppliers who require long-lasting, corrosion-resistant pressure switch housings.
Key Features & Benefits
✅ Superior Material Performance
✅ Precision Engineering
✅ Reliability & Safety
✅ Customization Options
Applications
Gas boilers (condensing/non-condensing)
Heat pump pressure controls
Hydronic system safety switches
Commercial boiler monitoring systems
Technical Specifications: Precision Aluminum Pressure Switch Housings
| Parameter | Casting Version (A380/ADC12) | Forging Version (6061/7075) |
|---|---|---|
| Material Standard | ASTM B85 (Die Cast) | ASTM B247 (Forging) |
| Tensile Strength | 310-330 MPa | 310-570 MPa (alloy dependent) |
| Surface Finish | As-cast: Ra 3.2μm | As-forged: Ra 6.3μm |
| Machined: Ra 1.6μm | Machined: Ra 0.8μm | |
| Wall Thickness | 2.0-15mm (min-max) | 3.0-25mm (min-max) |
| Dimensional Tolerance | ±0.15mm (basic) | ±0.05mm (basic) |
| Pressure Rating | 10 bar (design) / 20 bar (burst) | 15 bar (design) / 30 bar (burst) |
| Temperature Range | -20°C to +120°C (continuous) | -40°C to +150°C (continuous) |
| Leak Test Standard | 1.5 x working pressure (ISO 5208) | 2.0 x working pressure (ISO 5208) |
| Process Features | - Thin-wall capability | - Grain flow optimization |
| - Complex internal channels | - High-stress area reinforcement | |
| Post-Processing | - T5 heat treatment | - T6 heat treatment |
| - E-coating available | - Hard anodizing (50μm) | |
| Certifications | RoHS, REACH, EN 161 | IATF 16949, AS9100 |
FAQ
1. What are the key advantages of aluminum housings over plastic or brass?
Superior Strength: Withstands higher pressures (up to 30 bar burst) vs. plastic (typically <10 bar)
Lightweight: 60% lighter than brass with better corrosion resistance
Thermal Stability: Maintains dimensional integrity across boiler operating temperatures (-40°C to +150°C)
2. How do I choose between cast and forged versions?
| Factor | Cast Housing (A380) | Forged Housing (6061/7075) |
|---|---|---|
| Best For | Complex shapes/thin walls | High-stress areas |
| Cost | Lower (high volume) | Higher (premium strength) |
| Lead Time | Faster (ready molds) | Longer (custom dies) |
| Pressure Rating | 10 bar design | 15 bar design |
5. How do you prevent leaks in cast versions?
Process: Vacuum-assisted high-pressure die casting
Inspection: 100% X-ray scanning for porosity
Sealing: CNC-machined gasket grooves (±0.03mm flatness)
6. What surface treatments extend product life?
Standard: Chromate conversion (Alodine 1200)
Premium: Hard anodizing (50μm, MIL-A-8625)
Special: PTFE coating for sticky environments
7. What’s your MOQ and lead time?
Prototypes: 5 pcs (3 weeks)
Production: 500 pcs (6-8 weeks)
Expedited: +25% cost (30% time reduction)
8. Do you provide pressure testing reports?
Yes, each batch includes:
Helium leak test data (<1×10⁻⁶ mbar·L/s)
Burst pressure validation video (on request)
Material certs (EN 10204 3.1)