Flowserve Anchor/Darling

Anchor/Darling The Anchor/Darling brand dates back to 1888 and specializes in critical service valves for the power industry.

As a result of the proven performance of Anchor/Darling valves in every nuclear power plant in the U.S., users have come to depend on Flowserve for special engineering know-how and high degree of product reliability.

View the QA Manual for Anchor/Darling Products in Nuclear Service

QC Manual Rev 23

QAM ISO Annex for PED Rev 3

QAM ISO 9001-2008 Rev 12

Quality Assurance Annex NSQ-100 Rev 0


  • Valves ranging from 1/2 inch to 72 inches
  • Pressures over 6000 psi
  • Gate, globe and check valves
  • ASME Section III, Class 1, 2 and 3 service
  • Meets ASME B16.34