
Threaded Closures
Simple, yet robust
CNC precision manufacturing from 2" through 42" in ASME Pressure Classes 150-900
Overview
TUBE TURNS® manufactures Threaded closures in popular sizes ranging from 2" through 24" in ASME Pressure Class 150 through 900. Threaded closures in 26" through 42" are available in ASME Pressure 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.
Key Features & Benefits
Threaded closures engineered for simplicity, reliability, and precision
Simple Yet Robust Design
Only head, welding hub, pressure warning device, and heavy-duty hinging hardware
CNC Precision Machining
Accurate and consistent dimensions through precision CNC manufacturing
Pressure Warning Device
Alerts operator of any internal pressure before opening
Fluoropolymer Coating
ACME threads coated for corrosion resistance and solid film lubrication
ASME Code Compliance
Meets ASME Section VIII, Division I requirements
Dual Orientation
Available in horizontal and vertical orientations
Safety
Threaded Closures meet ASME Section VIII, Division I requirements with multiple safety features
Pressure Warning Device
Alerts operator of any internal pressure in pipe or vessel before opening
Progressive O-Ring Release
O-ring gasket seal breaks before Hub/Head ACME Threads completely disengage
Pressure Bleed Feature
Allows pressure to bleed and provides additional warning of existing internal pressure
Stainless Steel Construction
Pressure Warning Device manufactured from Stainless Steel for corrosion protection

Operational Assurance
To assure that the Threaded Closure will consistently open and close easily, TUBE TURNS® applies a Fluoropolymer coating on the ACME head and hub threads that provides corrosion resistance and solid film lubrication.
This coating, used in combination with appropriate lubricant on the threads, assures reliable closure operation. The Pressure Warning Device is manufactured from Stainless Steel to provide corrosion protection for this safety item.

Technical Specifications
Available in a comprehensive range of sizes and pressure classes
Small to Medium Sizes
2" - 24" (ASME Class 150 - 900)
Large Sizes
26" - 42" (ASME Class 600)
Orientations
Horizontal and Vertical
Thread Type
ACME Threads with Fluoropolymer coating
Quality Assurance
TUBE TURNS® Quality Control System is in accordance with the American Society of Mechanical Engineers Boiler and Pressure Vessel Code, Section VIII, Division I, Appendix 10 and is audited by an Authorized Inspection Agency.
ASME Code Stamping and Partial Data Reports are available at the time of order at a nominal extra cost.
Applications
Ideal for a wide range of pressure vessel and piping applications
Pressure Vessels
Filter Systems
Strainer Applications
Pipeline Access Points
Process Equipment
Storage Tank Access
Inspection Ports
Maintenance Access Points
Materials Available
Manufactured from ASME approved materials
Carbon Steel
Stainless Steel (304, 304L, 316, 316L)
Other ASME approved materials as specified
Product Gallery
Threaded closures in various sizes and configurations



Literature & Documentation
Technical documentation available in multiple languages
Threaded Closure Brochure (EN)
PDF • English
Threaded Closure IOM TT25 (EN)
PDF • English
Threaded Closure Brochure (ES)
PDF • Spanish
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