API Spec 7NRV (R2020) PDF

This standard was formulated to provide the minimum acceptable requirements for Drill String Non-return Valve (NRV) equipment. It covers Drill String Non-return Valves, Non-return Valve Subs, Non-return Valve landing nipples, Non-return Valve Equalizing Heads and all components that establish tolerances and/or clearances which may affect performance or interchangeability of the NRV equipment. Non-return Valve Subs, Non-return Valve landing nipples, Non-return Valve Equalizing Heads and NRVs manufactured by different facilities or manufacturers may be supplied as separate items.

Edition :	1st
File Size :	1 file , 520 KB
Note :	This product is unavailable in Ukraine, Russia, Cuba, Syria, Belarus, Iran, North Korea
Number of Pages :	26
Product Code(s) :	G7NRV01C, G7NRV01, G7NRV01C, G7NRV01, G7NRV01C, G7NRV01
Published :	07/01/2006