STAS 7840-1979
Oil equipment SUCKER RODS, SAFETY NUTS, CROSSHEADS AND VALVE CHAM- BER FOR MUD PUMPS Connecting dimensions

Standard No.

STAS 7840-1979

Release Date

1979

Published By

RO-ASRO

Latest

STAS 7840-1979

Scope

1 Prezentul standard stabile?te dimensiunile de leg?tur?, exprimate ?n mm, pentru tijele, piuli?ele de siguran??, capetele de cruce ?i camerele supapelor pompelor de noroi. 2 Pentru utilajele petroliere existente, se admite executarea de tije,

STAS 7840-1979 history

• 1979 STAS 7840-1979 Oil equipment SUCKER RODS, SAFETY NUTS, CROSSHEADS AND VALVE CHAM- BER FOR MUD PUMPS Connecting dimensions