The Weather Proof Valve Seals are used in automotive industries. Karan Export manufactures Weather Proof Valve Seals. Karan Export is an ISO 9001:2000 certified company that supplies wide range of precision engineered automotive components and accessories include automotive pistons, automotive connecting rods, automotive air filters, automotive spare parts, automotive engine parts, etc. Metering the proper amount of oil to the valve stem and guide is the most important function of a valve stem seal. Every valve stem seal design is evaluated on our oil metering test machines to optimize valve train durability, oil consumption, and Emissions. With engineering, sales, and manufacturing teams centrally located, it works with your engineers to understand the application and offer the user a customized solution.