China Topper Valve Packing Seal Kits Co., Ltd. https://www.valvepackingsealkits.com China Topper Valve Packing Seal Kits Co., Ltd. is a leading manufacturer specializing in high-performance industrial valves, sealing gaskets, and packing solutions engineered for critical applications in the most demanding industries. Our comprehensive product line—including gate valves, globe valves, and ball valves—is designed and manufactured to meet stringent API standards. Each valve features advanced low-leakage graphite packing to ensure optimal sealing performance under extreme pressure and temperature conditions. In addition to our valve offerings, we produce premium sealing gaskets and packing materials that deliver exceptional resistance to chemical corrosion, thermal cycling, and mechanical stress. Every product undergoes rigorous third-party testing and is certified to globally recognized standards such as API 622, API 624, API 641, ISO 15848-1, and TA-LUFT—validated by renowned institutions including TüV Süd and TüV Rheinland. Our commitment to sealing innovation has been at the core of our development strategy. Early on, we initiated R&D into low-emission graphite packing systems to meet the stringent environmental and performance requirements of markets such as the United States. Through long-standing collaborations with leading universities and research institutions, we've tackled complex challenges related to valve leakage, friction, and wear. These efforts led to our first TüV-witnessed API 622 certification and have since expanded into a comprehensive suite of international approvals—proving our solutions in real-world operating environments. What truly differentiates China Topper is our scientific and research-driven approach to valve engineering. Beyond precision machining, we investigate the behavior of non-metallic materials under dynamic conditions, develop specialized surface coatings to enhance sealing integrity, and analyze long-term friction and wear performance. Our multidisciplinary team—comprising experts in valve design, sealing technology, materials science, and automation—works cohesively to deliver smarter, more reliable valves. By bridging academic research with practical industrial application, we empower our customers to achieve enhanced operational safety, higher efficiency, and extended service life. Our dedication to innovation and excellence has earned us the trust of clients across a broad spectrum of industries worldwide.

Kelly Valve Co., Ltd., founded in 1988, is a leading manufacturer of Flow Control Valves and Industrial Valves, with manufacturing facilities located in Xiamen and Zhejiang. Our commitment to excellence is reflected in our advanced R&D capabilities, state-of-the-art manufacturing facilities, and adherence to industry certifications like ISO 9001, API 6D, and PED CE, ensuring that we deliver top-quality products to industries across the globe. In addition to our standard valve offerings, Kelly Valve Co., Ltd. specializes in custom-designed solutions to meet the specific needs of our clients. Our dedicated procurement and sales teams collaborate with over 100 trusted manufacturers, ensuring smooth sourcing, stringent quality control, and timely delivery. We provide exceptional customer service, from pre-sales inquiries to comprehensive after-sales support, ensuring a seamless experience for our customers. With a global presence spanning more than 20 countries and serving major industry players such as BP, SHELL, and PETRONAS, our valves are trusted worldwide. We are committed to delivering high-quality, reliable, and competitively priced products, providing excellent value to our clients across various sectors, including oil and gas, power generation, and petrochemical. https://www.kellyvalve.com/

China Vervo Valve Co., Ltd is One of the biggest Chinese industrial valves manufacturer specializing in floating ball valves, trunnion ball valves, cast steel gate valves, forged steel gate valves, pressure seal gate valves, cast steel globe valves, forged steel globe valves, cryogenic globe valves, forged steel check valves, swing check valves, dual plate check valves, API 609 butterfly valves, steel plug valves, Y strainer valves, etc. Our main market includes North America, South America, Western Europe, Eastern Europe, Eastern Asia, Southeast Asia, Middle East, Africa, Oceania, from Worldwide Markets. Our Business covers manufacturing, importing and selling all kinds of industrial ball valves, industrial gate valves, industrial globe valves, industrial butterfly valves, industrial check valves, industrial plug valves, industrial special valves. We are looking forward to cooperating with you with most sincerity! Visit our Website: https://www.vervovalve.com/