ASME Quick Opening Threaded Closures
Simple Yet Robust. Due to the strong and simple design, a threaded closure provides the lowest maintenance of all Quick Opening Closures
For over 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.
TUBE TURNS® manufactures Threaded closures in popular sizes ranging from 2" through 24" in ANSI class 150 through 900. Threaded closures in 26" through 42" are available up to ANSI class 600. Threaded closures are available in horizontal and vertical orientations. Threaded closures offer safety with a simple design that consists of only a head, welding hub, pressure warning device, integrated tool to assist in opening and closing the larger size closures and heavy duty hinging hardware with adjustable davit mechanisms on larger sizes. TUBE TURNS® Threaded Closures are manufactured utilizing the precision of CNC machining to provide accurate and consistent dimensions. Best used for: pig traps, filters, strainers, scrubbers, heat exchangers, blowdowns, and other vessels
Threaded Closure Design & Code Compliance
All Tube Turns Threaded Closures are designed in accordance with Section VIII, Division 1 of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. Prototype testing utilizing strain gages was conducted to prove the design basis and strength requirements of the closure geometry. The strain gage results were compared to finite element analysis for theoretical agreement to meet the allowable stresses prescribed in the ASME Pressure Vessel Code. The hydrostatic testing and strain gage testing were witnessed by an independent authorized inspection agency
Pipeline Pigging | Quick Opening Closure Safety
Threaded Closures meet ASME Section VIII, Division I requirements. Each Threaded Closure has a pressure-warning device to alert the operator of any internal pressure in the pipe or vessel before opening the head. Also, the O-ring gasket seal is broken before the Hub/Head ACME Threads are completely disengaged which allows pressure to bleed and provides additional warning to the operator of existing internal pressure.
Threaded Quick Opening Closures
Threaded Closure Code Compliance
Quick Opening Closure Applications
Threaded Closure Code Compliance
ASME Code Stamping and Partial Data Reports are available at the time of order at a nominal extra cost, verifying shop inspection of the unit by a commissioned inspector of the National Board of Boiler and Pressure Vessel Inspectors. Alternatively, we can supply, at no extra charge, our Manufacturer’s Statement of Code Compliance to ASME Section VIII, Division 1. We can certify D.O.T. Title 49 Part 192 or Part 195, ASME B31.3, ASME B31.4 or ASME B31.8.
Quick Opening Closure Materials
Quick Opening Closure Applications
Threaded Closure Code Compliance
Threaded Closure Hubs and Heads are made from the materials listed below:
Hubs 2” - 8”: SA-106 Grade C X46 10” - 36”: SA-105/SA-350 LF2 Cl. 1/ A694-F52
Heads 2” - 6”: SA-352 Grade LCB 8” - 12”: SA-105/SA-350 LF2 Cl. 1 14” - 36”: SA-516 Grade 70N
Quick Opening Closure Applications
Quick Opening Closure Applications
Quick Opening Closure Sizes and Ratings
Applications include scraper traps, filters, strainers, separators/ coalescers, terminal manifolds, meter provers, distillation towers, storage tanks or any pressure vessel requiring frequent access. Best used for: pig traps, filters, strainers, scrubbers, heat exchangers, blowdowns, and other vessels
Quick Opening Closure Sizes and Ratings
Threaded Quick Opening Closure Maintenance
Quick Opening Closure Sizes and Ratings
Tube Turns Threaded Closures are available in sizes 2” thru 24” in Class 150 thru 900 and 26” thru 36” in Classes 150 thru 600. These closures are specified by many piping engineers and designers for their economy and simple design that consists of only a Head, Welding Hub and hinging hardware.
Pipeline Threaded Closure Operating Tool
Threaded Quick Opening Closure Maintenance
Threaded Quick Opening Closure Maintenance
An Operating Tool is available for easier final closing and initial opening of the 6” and larger Threaded Closure
COMMON O-RING MATERIALS Buna-N General service. Resistant to petroleum base hydraulic and lubricating oils; animal and vegetable oils; gases such as butane, propane, acetylene and natural gas, aromatic and nonaromatic fuels such as gasoline, kerosene, diesel fuel and
fuel oils, anhydrous ammonia and water. Temperature limits -30 °F to 250 °F; (-34 °C to 121 °C) special compounds suitable to -65 °F (-54 °C). Viton Generally used for high temperature services. Resistant to synthetic lubricants, petroleum base products, some chlorinated solvents, benzene, toluene and many acids and alkalies. Viton is also used for sour gas and oil service. Temperature limits -15°F to 400°F (-26 °C to 204 °C).
Threaded Quick Opening Closure Maintenance
Threaded Quick Opening Closure Maintenance
Threaded Quick Opening Closure Maintenance
Two closure o-ring seals and two PWD o-ring seals should be stocked for each closure. If several identical closures are in operation in a given area, one closure o-ring and one PWD o-ring per closure may be stocked. Frequency of replacement will depend upon such factors as operating pressure and temperature, shrinkage and swelling caused by product absorption, the corrosiveness
of the product in the system and frequency of operation.
ASME Threaded Closure Parts List
Now Offering Pipeline Pig Signalers
The Sypris® Technologies Sig-Tech® intrusive Pig Signaler can be installed at pre-determined intervals on pipelines to detect the passage of a cast polyurethane pigs or spherical type pigs.