Quality

Quality comes first!
Customer satisfaction, safety and reliability take top priority in our quality assurance, it has been always a firm idea in our mind that quality shall always prevail. We firmly believe in that one of the best ways to grow our business is to focus on tightly controlled quality and attention to details, we make sure that every minute detail is looked into while manufacturing even the smallest part.

The role of everyone
Our commitment to quality is reflected throughout our entire organization. Quality Assurance is both a process and a way of doing business. We have adopted a philosophy and discipline that makes ensuring quality the role of every employee. In addition to standard monitoring and quality control, every employee is encouraged to recognize Potential Quality Incidents and propose ideas to improve quality. The resulting procedural improvements have played an important role in enabling us to provide our customers only quality products.
Most of all, our employees take pride in caring for each and every part.
Strict QMS - Quality Management System
From the product planning and conceptual stage to development, design, prototyping, evaluation, mass production, shipping, and post-shipment activities, we implement strict Quality Management System certified by both IATF 16949: 2016 & ISO 9001: 2015.
Highly experienced manufacturing team
Since 1998, our team has succeeded in understanding the needs of the industry. Our highly experienced manufacturing team pays close attention to details to ensure precise dimensions and high quality product. From raw material receiving, to first article, to in-process inspection, to final inspection, each product is being meticulously inspected and monitored every step of the way, every team member makes it a top priority to maintain excellent quality and deliver exact specifications. This is central to our corporate culture and guiding principle for our company.
Quality assurance staff & lab
Our Quality Assurance staff is professionals trained in up-to-date quality procedures and systems. Our quality assurance lab is fully equipped with the latest in computerized testing equipment. We provide both destructive and non-destructive testing to make sure our products meet your high standards.

OEM grade or better components
Including bearing and seal, we take great care in selecting each single component. Our components are only from reliable, leading manufacturers with proven quality and of cousre at competitive cost.
Our components not only meet OE quality standards, but also the higher internal standards our company imposes on itself.

Seal
As the water pump is the heart of the cooling system, the seal can be considered the heart of the water pump.
We use first-grade water seals from top brands. Apart from others, primary ring of our seal is made of hardened silicon carbide and its mating ring is made of hardened carbide graphite. The advantage of this material combination: It seals the system reliably and is also extremely resistant to thermal shocks and particles circulating in the coolant.
Bearing
We use high-quality roller-ball bearing from OEM bearing manufacturer, the bearing surface is high-frequency quenching heat treatment to ensure that the water pump can withstand heavier radial and axial loads with longer life and better tolerance to imbalance or vibration in the cooling system.
Impeller
By 2023, we have 25years experience in manufacturing water pump impellers with its range covering over 1,000 models of water pump.
Our impellers are sized for each and every application – there are no “one size impeller fits all pumps” compromises. We use premium materials with bigger wall thickness to produce impeller with OE-spec and apply multiple stretching in process which can ensure no breakage in performance, better durability and maximum coolant flow.
Flange/Hub/Pulley
We use premium quality flange/hub/pulley made of forged material with higher hardness, they are pressed onto water pump with precision-guided tooling.
Housing
In the past 18years, we also have been manufacturing and supplying water pump housing to leading water pump manufacturers either from China or overseas.
We make housings with toolings deigned and made by ourselves. Our housings are usually with thicker wall to better handle the pressure exerted by the drive belt and the internal pressure of the coolant system. All housing are vacuum tested before assembly to ensure no casting porosity or leak paths are present at the component level. Precision CNC machined surfaces ensure a leak free install, long component life and maximum efficiency.
Gasket/O-ring/Backplate
We produce accessories including O-ring, gasket and back plate per OE sample with our own toolings. Each part, no matter how small, is engineered to exacting OE standards with proprietary design, engineering and manufacturing processes, it ensures perfect fitting with pump and engine.

great details, great craftsmanship
Our dedication to creating the highest quality water pump begins with our craftmanship. At our company, we pride ourselves on the craftsmanship that goes into each and every water pump we make, it comprises deep passion, care, and a meticulous attention to detail, it's a commitment to quality. Below are several samples of our craftmanship and care to detail.

Where it needs machining, we machine it precisely with right tool through right method. For example, as shown above, we machine the hole through precise BORING process. To save cost, many manufacturers do it directly through DRILLING process which frequently leads to problem of off-center or poor roughness on surface.
To ensures perfect fitting with pump and engine, we produce accessories including O-ring, gasket and back plate per OE dimensions with our own toolings designed by our engineers and fabricated in our tooling shop.
Some manufacturers outsource one model of accessory from various manufactures, this may lead to various or inconsistent dimensions of this accessory, their accessories can not fit pump or engine as well as ours do.
Where machining is necessary, we definitely machine it. Take chamber for bearing as example. Each and every bearing champer in our water pump housing is machined through boring after die casting, it ensures precise match between the bearing and the chamber with no worry of leakage. To save cost, many manufacturers do not machine the chamber and leave it as die casted, this shall surely result in leakage problem.
We take all measures to prevent pump from possible damage during transiting. For example, we use kraft paper sleeve to protect plastic impeller. The sleeve is from our used adhesive tapes, it adds no cost while being great help and environment friendly.

DRIVE COOL WITH DECOOL WATER PUMP
The philosophy of making a high-quality, sustainable product is a way to pay respect to the product, its user, its maker, and to nature.
DECOOL water pump - worthy of your trust!
