Chiksan® Swivel Joints - Topco Oilsite Products Ltd.

Weco ® Check ValvesDart Check ValvesRecommended serviceExtreme nitrogen and carbondioxide services; wet or drynon-erosive flowEasy, low-cost serviceMain seal is located on seat,reducing exposure to flow.Enables seal to be replacedwithout replacing seat or dart.Low-inertia dart designHollow dart and fixed stemminimize pressure required tostart flow. Non-metallicbushing reduces friction,increasing dart and stem life.Minimizes explosivedecompressionExplosive decompressionresistant materials anddesign for long service life.N 2 and CO 2 capabilityStainless steel internalcomponents and specialelastomer seal handle gasvelocities in excess of250 feet/second.Flapper Check ValvesRecommended serviceSlick water, sand, proppant/gel, andcement servicesAbrasion resistant flapperCarboxylated nitrile flapper faceis abrasion resistant against acomplete range of well fluids.Open flow pathFlapper dynamics provideoptimum flow through the valveand low flow differential.Replaceable seatSeparate seat/body designensures the seat can bereplaced as needed.See specifications tables (pages CV1A and CV2A) for sizes, dimensions, weights, materials, and part numbers.CV2