The SPM EQUIPMENT’S pipe joint internal clamps are custom-built, offering a range of solutions for accurate internal alignment. These internal clamps are manufactured for precision and are field-proven to be tough and durable. Pipe Joint Internal Clamp (Small Size) available 6” and 8”. Our offered Pipe Joint Internal Clamp (Small Size) is a great solution for the small-size pipeline. Pipe Joint Internal Clamp (Small Size) comes with optional copper or stainless steel and comes standard with carbon steel.