Double Bolt Yoke Style Closure is compact in size and functional in design. A typical unit consists of a forged hub, a hinged blanking head, split-yoke clamps, operating bolts, and a self-energizing O-ring gasket. Materials of construction are in accord with ASME specifications, and manufacture complies with applicable rules of the applicable ASME code for Pressure Piping and with the ASME Boiler and Pressure Vessel Code. 

 Tube Turns Double Yoke Style Closures are widely  accepted throughout the world for applications where frequent access is required or where the blind flanges are cumbersome and time consuming. Yoke Style Closures can be equipped with operating aids to simplify the opening and closing tasks. Devices such as breakover wrenches and chain and sprocket drives are available Size range 2” – 72” Pressure range ANSI 150 - 2500. 

Tool-less® closures are high pressure quick opening closures (QOC) supplied in the vertical or horizontal configuration. The Tool-less® is designed to be opened and closed by one person in one minute without the use of additional tools. Tool-less® closures are suitable for use on natural gas filter separators where filter element replacement requires frequent vessel access. Horizontal Tool-less® closures include double-pivot heavy duty hinge while the vertical closures can be furnished with a robust davit to raise the door once unlocked. Size Ranges 8” – 72” Pressure range ANSI 150 – ANSI 2500. 

With Safety in Mind our Pressure Warning Device assures both pressure warning and mechanical locking of the closure prior to commencement of operation. 

Threaded Closures design is simple yet robust. Heavy duty davit assembly is furnished for effective alignment of head and hub. Components are manufactured utilizing precision CNC machining to provide accurate and consistent dimensions. Threaded closures are economically priced with attractive lead times to meet the most demanding customer requirements. Size Range 2” – 24” pressures ANSI 150 - ANSI 900 Size Range 26” – 36” pressure ANSI 150 - ANSI 600. 

For forty years, Tube Turns has provided Closures for a wide range of applications such as Pipeline Scraper Traps, Pig Launchers/Receivers, Filters, Meter Provers and Pressure Vessels. 

Swing Bolt Closures have a compact design, light weight, and simplicity of construction and operation are keynotes of the Tube Turns T-Bolt Hinged Closure. The closure consists of a thick elliptical head hinged to a matching hub, a self-energizing O-ring and a suitable number of T-bolts to effect and maintain a tight seal. For most services, the standard materials - carbon steel and a "Buna-N" O-ring-are satisfactory. 

Tube Turns T-Bolt Closures are designed for nominal pressure applications. T-Bolt closures are available for horizontal and vertical applications. Safety plus operating advantages and weight savings over flanged manways make our T-Bolt Closures ideal for applications such as storage tanks, mixing equipment, filters, separators, inspection ports, tower access, reactor access and hand holes on processing equipment. T-bolts can be supplied in specialty applications such as sanitary equipment, medical waste and hyperbaric chambers. Size Range 6” – 66” Pressures up to 500PSI.