Series (PDS) is a very unique in-line accumulator. The PDS is designed to absorb pressure pulsations in piping systems created by metering pumps with operating pressures up to 150 psig. It incorporates a tubular diaphragm that separates process liquid from a gas cushion. The PDS also includes a charging valve, pressure gauge, system connections, and mounting bracket. The Pulsation Dampeners are made from corrosion resistant materials. The machined housing is available in PVC or Polypropylene. The elastomeric diaphragm and seals are Hypalon, Viton or EPDM.