There are many methods of sealing valve stems on control and isolation valves. When chosen carefully, a valve stem seal provides years of reliable service, reduces environmental emissions, and ...

Watch skilled mechanics in action as they replace the diesel valve stem seals of a Nissan truck with precision and expertise.

Step 3 Press the tire gauge against the valve stem in a swift motion, making a “flat” connection that seals completely. Swiftly remove the gauge from the tire’s valve stem after the stick ...