Revised Standard from Last Update.

1. SCOPE

This standard specifies the requirements for screwed and flanged foot-valves, reflux valves or non-return valves and bore valves to be used in suction lines of centrifugal pumps for agricultural purposes.

2. REFERENCES

The standards indicated in Annex A, contain provisions which through their reference in this text constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibilities of applying the most recent editions of the standards in Annex A.