A typical rising stem valve showing the effects of water contamination

Mitigating MOV stem nut failure through proper maintenance and wear measurement

A major problem with stem nut thread failure is that stem position is usually interpolated from the number of stem nut rotations. If the stem nut threads strip out, the stem nut will still turn but will give a false indication of position to the control room. Such a failure of control and indication on a valve could cause a critical safety or environmental incident. This paper reviews approaches to stem nut maintenance and introduces a more scientific approach to measure stem nut thread wear. Read more...
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Valve World Magazine
Eaton showcases CLS Load Sense mobile valves

Eaton showcases CLS Load Sense mobile valves

Eaton showcased its line of CLS Load Sense Sectional Mobile Valves at its Searcy, Arkansas, manufacturing...
25 September 2017
GEA’s hard valve seat seal for D-tec valve range

GEA’s hard valve seat seal for D-tec valve range

GEA has launched the TEFASEP® gold valve seat seal. It consists of a specially developed thermoplast...
25 September 2017
Weir BDK gets supplier approval from KOC

Weir BDK gets supplier approval from KOC

Weir BDK™ has received approval from the Kuwait Oil Company (KOC) to supply gate, globe and check valves....
25 September 2017
Petrofac gets contract on Sakhalin Island

Petrofac gets contract on Sakhalin Island

Petrofac has been awarded a contract worth more than USD 700M by Sakhalin Energy Investment Company Ltd....
22 September 2017

Swing check valve 18 inch delivered to USA

Jonloo has delivered swing check valves to a client in USA. These valves are made in A351 CF8 material, which is anti-corrosive.The customer had quite high demands upon these valves and SGS (the third party) was sent to inspect before delivery. The inspection included the measure of dimensions, the ...
22 September 2017

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