Actuator Mounting Tips on Ball Valves

Information on severe service and dirty service on quarter turn ball valves

A CONTENTIOUS ISSUE

May 2nd, 2018 by Amanda Schumann

Information regarding Sealant Injection facilities on Trunnion Mounted Ball Valves

One piece seal welded body, floating ball double block. Primary seal METAL, to METAL, secondary seal vulcanized specially hardened Viton or NBR, pressure safe cover for the stem to prevent any leakage. For operation remove the cover. Completely in accordance to spec. KN251-005. Specifically designed as shut off drain and vent lines for larges valve […]

Sferova F51 TM ESDV Ball Valve (Norsok certified o-rings) c/w Air Torque heavy duty SIL3 certified, EX certified, heavy wall, low weight, Alloy, rugged heavy wall rack & pinion, high torque, 100{25ff19fb4bbe50b2512a26092ffa8499fbe25baf0e752d653cb6adacb3479290} Italian made, spring return actuator & controls. Supplied, fitted & tested by Global Supply Line Engineering in our Sferova & Air Torque approved […]

In floating ball valves 316 (CF8M ball) trim is the standard because under 150mm there is only a minimal cost advantage using ENP trim in 150/300 class as the ball wall thickness is not large and the balls are mass produced keeping the costs down. However, in the trunnion mounted arena 316 trim is utilised […]

  Trunnion mounted ball valves often have corrosion inhibitor in the sealant injection lines to prevent corrosion during ocean transport or due to humidity etc. The trouble with this is, nowadays they use synthetic oils. Synthetic oils become dry and tacky, and the seat and ball area become dry and tacky/sticky. After the actuator is […]

Another top up shipment of high quality, investment cast, APV firesafe certified floating ball valves has been received in. ‘Full Stainless Steel’ means full stainless steel lock device, mount pad,  hand lever and bolting not just body. True ANSI B16 wall thickness. Heavy duty rugged T bar and pole lever, not light duty lever. Fully […]

Another shipment of Starline floating and trunnion valves and Air Torque actuators has arrived. Global Supply Line Adelaide stocks valves, a variety of seats & seals, genuine Starline stainless steel integral high and low temperature extended stems, and genuine Air Torque high tensile stainless steel brackets and adaptors. In addition, we have in-house Starline & […]

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