Product Overview
Injection molded housings are transparent or semi-transparent PC and PC/ABS enclosures for water meters, instrument displays, sensor modules, and measurement devices, protecting the assembly, positioning internal components, and providing the required sealing and mounting interfaces.
Core Advantages
PC Light Transmission of at Least 88%
Optical-grade PC provides light transmission of 88% or more through the specified viewing area. Meter digits, indicators, and status lights remain visible without a separate transparent window.
1.6 MPa Pressure Validation
Wall thickness, ribs, corners, and sealing lands are arranged to reduce local stress concentration. For water-meter housing projects, the assembled structure can be validated at 1.6 MPa for 30 minutes without cracking.
500-Hour UV Resistance Target
UV-stabilized PC and the specified UV surface treatment are tested for 500 hours of UV exposure without visible yellowing. This keeps the transparent viewing area clear enough to read outdoor meter and instrument displays.
Product Parameters
|
Parameter |
Value |
|
Material Options |
PC or PC/ABS |
|
Light Transmission |
PC ≥88%, PC/ABS semi-transparent |
|
Surface Treatment |
Vacuum coating with UV |
|
Pressure Test |
1.6MPa for 30 minutes with no cracks |
|
UV Resistance |
500 hours of UV light with no yellowing |
Customization
Customization covers overall dimensions, transparent and semi-transparent zones, PC or PC/ABS material, wall thickness, ribs, gasket grooves, ports, mounting bosses, threaded inserts, vacuum coating with UV protection, texture, color, and molded identification.
Quality Control
Dimensional approval checks wall thickness, sealing lands, ports, insert positions, and internal mounting datums. Optical areas are compared with the approved transparency and appearance standard. When pressure performance is required, the assembled housing follows a 1.6 MPa, 30-minute test plan. Coated surfaces are also inspected for bubbles, splay, pinholes, scratches, and uneven coverage.
FAQ
Q: What is the minimum order quantity?
A: The standard MOQ is 10,000 molded housings for one approved structure.
Q: How long does a new molded sample take?
A: Custom sample development normally takes about 50 days after the drawing, material, optical area, and interface requirements are confirmed.
Q: Is the water-meter mechanism included?
A: The standard supply is the molded housing. Meter mechanisms, electronics, seals, and final assembly are included only when separately specified.
Q: Is pressure testing performed on the plastic shell alone?
A: Pressure performance is normally tested in the assembled sealing condition because the result is affected by gaskets, fasteners, and mating parts. The test fixture and assembly stack are agreed before validation.
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