Shanghai Chongfu knows how critical it is for you to protect your machines from the oil. Most jobs involve machines and if they fail, we can be in trouble. In the event of any damage, these O rings will prevent the machines from seeping within them.
Getting oil on machines is a sure-fire way to break critical pieces and make repairs prohibitive. Do you know how expensive and time-consuming it is to repair a doll or bicycle of a relative with a broken chain? So, take preventive measures with oil resistant O rings and avoid the hassle and expenses.
It’s similar to pulling on a raincoat if it’s wet outside. As a raincoat protects you from rain, oil proof O rings protect machines from oil. This means you won’t have to waste much time or money making repairs, so you can spend more time doing your work, instead of worrying about machines breaking down at the worst possible moment.
One of the epitome jobs of O rings is to form a solid seal between machine components. By allowing the seal to remain intact at potential failure points when oil presents, you can avoid potential catastrophic problems through the use of oil resistant O rings.

If the seal is weak, oil leaks out, which can cause more damage. By using oil resistant O rings you can prevent leaks and other problems from occurring. It’s as if you have a nice cover on a jar – when the lid is sitting nicely nothing comes out!

The O rings we manufacture are perfect to protect your equipment irrespective of whether you are using heavy machines or cars or any otherthing. Our O rings stick with you, like a loyal friend—strong, dependable and always going to be able to lend a helping hand.

So, if you need to keep your machines safe from bad oils, it’s highly important to opt for oil proof O rings from Shanghai Chongfu. This helps extend the life of your machines, create a positive seal that prevents leaks, and ensure that your equipment is working properly even in harsh oil conditions.
The company utilizes top-tier raw materials, such as American DuPont PTFE, 3M (DYGON), and Daikin from Japan, to provide their diaphragms. This ensures stable, excellent quality that meets or exceeds industry standards. The company works closely with trusted manufacturers who employ advanced production equipment and rigorous testing instruments, enabling precise quality control throughout the supply chain.
Shanghai Chongfu Industry Co., Ltd. offers a wide range of diaphragm pumps and accessories, including parts for world-renowned brands such as Wilden, Sandpiper, Almatec, Yamada, Graco, Blagdon, and Veresmatic. Their product catalog includes diaphragms, valve seats, ball valves, air valve assemblies, center bodies, shells, manifolds, shafts, mufflers, and repair kits, providing customers with a comprehensive selection of parts and pumps for various industrial needs.
Shanghai Chongfu Industry Co., Ltd. provides aggressive pricing while maintaining product quality. The company offers short shipping and delivery times, making it a reliable choice for customers who require quick turnaround times. Additionally, they ensure thorough inspection and testing of all products before shipment, ensuring that customers receive products in perfect condition.
With over 13 years of experience in the diaphragm pump industry, the company has developed extensive expertise in the sale of AODD (Air Operated Double Diaphragm) pump parts. They specialize in offering high-quality, reliable pump components, ensuring that their products meet industry standards and exceed customer expectations.