API Spec 7NRV (R2020)

API Spec 7NRV (R2020) – Specification for Drill String Non-return Valves, First Edition, Includes Addendum 1 (2019)

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.

Product Details

Edition:

1st

Published:

07/01/2006

Number of Pages:

26

File Size:

1 file , 520 KB

Product Code(s):

G7NRV01, G7NRV01C, G7NRV01, G7NRV01C, G7NRV01, G7NRV01C

Note:

This product is unavailable in Russia, Cuba, Syria, North Korea, Ukraine, Belarus, Iran