During a recent live-streaming session, a customer asked:
“Do your water purifiers come with leakage insurance?”
This is an important question because it reflects one of the biggest concerns customers have when choosing a water purifier: long-term reliability and leakage risk.
Instead, we rely on our manufacturing quality, strict quality standards, and our commitment to taking responsibility for product quality issues through professional after-sales support.
Some customers may initially wonder whether not providing leakage insurance means avoiding responsibility. However, we believe the opposite is true. As a professional ultrafiltration water purifier manufacturer, ChengrongTimes takes direct responsibility for product quality because we understand that only the factory that designs, develops, and manufactures the product can truly solve quality issues at their source.
What’s more, insurance coverage always comes with specific conditions and limitations. For the few sellers who do offer leakage insurance, many simply choose basic insurance plans with limited coverage, high deductibles, and various exclusions. When a serious leakage incident occurs, such policies could only cover a small portion of the actual loss.
At ChengrongTimes, we believe that the best protection does not come from insurance, but from responsible manufacturing. By controlling product materials, structural design, manufacturing processes, and quality standards, we are committed to delivering ultrafiltration water purifiers built with industry-leading reliability.
This is why ChengrongTimes is confident in providing products designed for 10-year leak prevention performance, supported by responsible after-sales service and long-term customer support.
Why Long-Term Reliability Matters for Home Water Purifiers
A home water purifier, especially for under sink water purifier, is directly connected to a household water supply system.
If the pressure-bearing housing of the under sink water filter fails due to water hammer effects or structural weakness, the damage is not limited to the water filter itself. Water leakage may also damage kitchen cabinets, flooring, and other household property.
In many cases, the purchase price of a under sink water purifier may only be several hundred dollars, while the potential repair costs caused by leakage could be significantly higher.
Therefore, more and more customers are paying attention not only to filtration performance of the water purifier, but also to the potential leakage risks and financial losses caused by poor product quality.
Why Water Purifier Reliability Starts with Responsible Manufacturing
Unlike many water purifier brands, ChengrongTimes believes that end users are the final value recipients in the entire household water purification industry supply chain — but they are also the group with the least visibility into the actual manufacturing process.
Customers usually cannot see:
- The raw materials used in production
- The quality of semi-finished components
- The manufacturing processes
- The quality standards behind the product
In most cases, customers can only compare what they can see: appearance and price. However, the true quality of a water purifier is determined by the details hidden behind the product.
This is why ChengrongTimes has established a long-term quality commitment since its foundation:
10-Year Corrosion Resistance.
10-Year Leak Prevention Performance
10-Year After-Sales Support
This is not simply a marketing slogan.
It is a commitment built on real manufacturing capabilities, strict quality control, engineering expertise, and continuous improvement.
Beyond household ultrafiltration water purifiers, Chengrong UF factory also has independent engineering capabilities for customized water treatment systems.
Building Long-Term Reliability Through Better Materials
At Chengrong UF Factory, we believe that long-term reliability starts with material selection:
High-quality water purifiers start with high-quality materials.
All ultrafiltration water purifiers manufactured in the Chengrong UF factory use 304 stainless steel housings, because stainless steel provides excellent corrosion resistance, mechanical strength, and long-term durability compared with conventional plastic materials.
With the increasing difficulty of identifying low-quality or non-compliant stainless steel materials, Chengrong UF Factory maintains strict control over raw material selection. We only use genuine 304 stainless steel materials that meet national standards to ensure consistent product performance and long-term reliability.
Before production, we check supplier material certificates. After materials enter the factory, we conduct regular inspections, including:
- Salt spray testing
- Hardness testing
- Surface finish inspection
- Dimensional inspection
- Supplier material certificate verification
- Material composition verification
This ensures that every batch of stainless steel used in our products meets our manufacturing requirements.
For overseas customers seeking a reliable China stainless steel filter housing manufacturer, material authenticity and manufacturing transparency are essential factors when evaluating a supplier.
At Chengrong UF Factory, we focus on the details that customers cannot always see — because long-term product reliability is built on these hidden details.
304 Stainless Steel Water Purifier Housing Design: The Core of Long-Term Durability
The water purifier housing structure is one of the most important factors affecting the safety, leak prevention performance, and service life of an ultrafiltration under sink water purifier.
For this reason, ChengrongTimes does not only focus on filtration performance, but also pays close attention to the structural strength and pressure resistance of the stainless steel housing.
ChengrongTimes has always focused on improving material performance. While our current ultrafiltration water purifier housings are manufactured with thicker 304 stainless steel structures, we are continuously transitioning more product lines toward 316L stainless steel to achieve higher corrosion resistance and long-term durability.
Instead of using a uniform thin-wall design, ChengrongTimes optimizes housing thickness according to different structural requirements.
The cover section of the stainless steel housing is designed with a thickness of 1.8 mm, which is significantly thicker than many standard market designs that use materials around 1.2 mm or less. This represents approximately 50% greater wall thickness, enhancing resistance against pressure impact and mechanical stress.
For the main body section of the housing, the thickness reaches 1.45 mm, compared with many standard designs using around 1.0 mm or less. This represents approximately 45% greater wall thickness, providing stronger structural support and improved long-term durability during operation.
Although increasing stainless steel thickness increases manufacturing costs, we believe that product durability and user safety are more important than short-term cost reduction.
Pressure Testing: Engineering Verification Behind Leak Prevention
Water purifier leakage is not a matter of luck. It is directly related to the structural strength, sealing performance, and pressure resistance of the pressure-bearing components.
To evaluate structural safety and leak prevention performance, ChengrongTimes conducts strict pressure performance verification on our stainless steel filter housings, including:
- Cyclic pressure testing (water hammer simulation)
- Static pressure testing
- Burst pressure testing
These tests are designed to verify whether the stainless steel housing can maintain structural integrity and sealing performance under different pressure conditions.
The actual pressure test results of our stainless steel filter housings are shown below:
| Test Item | Reference Requirement | ChengrongTimes Test Result |
|---|---|---|
| Cyclic Pressure Test (0–10 kg water hammer) | 100,000 cycles without leakage or rupture | More than 400,000 cycles, approximately 4 times the reference requirement |
| Static Pressure Test | 1.2 MPa, holding for 15 minutes | 2.07 MPa (approximately 20.7 kg/cm²), holding for 15 minutes without leakage or damage |
| Burst Pressure Test | 2.76 MPa | 3.0 MPa (30 kg), 5 seconds without leakage or rupture |
These test results demonstrate the structural reliability and leak prevention performance of ChengrongTimes stainless steel filter housings under high-pressure conditions.
Designed for Reliable Performance Under Real-World Conditions
What do these test results mean for end users?
In normal household applications, municipal water pressure is usually much lower than the pressure levels used during our laboratory testing.
By performing pressure tests beyond typical operating conditions, ChengrongTimes aims to provide an additional safety margin for our customers.
The purpose of these tests is not simply to show numbers, but to verify that our products can provide:
- Stable operation
- Reduced leakage risk
- Long-term structural durability
- Protection against potential water damage caused by structural failure
For distributors, engineering companies, and OEM partners, choosing a reliable ultrafiltration water purifier manufacturer means choosing a supplier that understands not only filtration performance, but also structural safety and engineering reliability.
Built on Engineering Confidence, Not Marketing Claims
At ChengrongTimes, we understand that no mechanical product can operate forever without maintenance.
Therefore, we do not make unrealistic promises such as “never leaking” or “never requiring replacement.”
Instead, we focus on engineering reliability, strict manufacturing standards, and responsible after-sales support.
Through:
- High-quality 304 stainless steel materials
- Reinforced housing design
- Professional pressure testing
- Strict quality management
- Integrated manufacturing capabilities
As an ultrafiltration water purifier manufacturer, ChengrongTimes designs products to provide long-term reliability and stable performance.
Our commitment is simple:
To manufacture reliable water purification products that protect users, support partners, and create long-term value.
