Abstract: A suppressor for a fluid line in a manifold, including a mounting body removably securable to the manifold, and a diffuser attached to the mounting body and located in the fluid line when the mounting body is secured to the manifold. A charge bladder is secured to the mounting body and disposed inside the diffuser, and a charging valve is secured to the mounting body for charging gas through the mounting body into the interior of the charge bladder. A discharge opening is between the charge bladder interior and an opening in the mounting body adjacent the manifold when the suppressor is secured to the manifold, and a seal is securable over the discharge opening and between the mounting body and the manifold when the mounting body is secured to the manifold. The seal alone is structurally incapable of preventing discharge of charge gas from the charge bladder, but prevents discharge of charge gas from the charge bladder when the mounting body is secured to the manifold.

Abstract: A pulsation absorbing device and method of making a pulsation absorbing device is disclosed. The pulsation absorbing device includes a pressure vessel having a resilient diaphragm mounted therein together with an inlet associated with one end of the pressure vessel and an outlet associated with the other end of the pressure vessel. A spool is mounted within the pressure vessel inwardly of the resilient diaphragm and intermediate and in communication with the inlet and the outlet to carry fluid from the inlet to the outlet. The spool and the resilient diaphragm define a pressure chamber therebetween which is in fluid communication with fluid carried from the inlet to the outlet through holes in the spool. A helical wave band is disposed on the spool for accommodating flow through the holes in the spool and defines a plurality of helically spaced flow accommodating openings.