Threaded Closures
Simple, yet robust
CNC precision manufacturing from 2" through 36" in ASME Pressure Classes 150 through 900
Overview
TUBE TURNS® manufactures Threaded closures in popular sizes ranging from 2" through 24" in ASME Pressure Classes 150 through 900. Threaded closures in 26" through 36" are available in ASME Pressure Classes 150 through 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
Standard on 6" and larger sizes; optional on 2" through 4". Alerts operator of any internal pressure before opening.
ACME Thread Design
Heavy-duty ACME threads on head and hub for reliable, repeatable operation
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
Provides visible warning of internal pressure prior to opening. Standard on 6" and larger; optional on 2" through 4". Note: the device is not a bleeder plug and is not designed to relieve internal pressure.
O-Ring Sealing
Resilient O-ring gasket provides the primary pressure seal between hub and head
Heavy-Duty Hinging Hardware
Adjustable davit mechanisms on larger sizes assist with safe opening and closing
Authorized Inspection Agency Audited
Quality Control System per ASME Section VIII, Division I, Appendix 10, audited by an Authorized Inspection Agency
Operational Assurance
TUBE TURNS® Threaded Closures use heavy-duty ACME threads on the head and hub, precision CNC machined for accurate and consistent dimensions.
When used with the appropriate thread lubricant, these closures provide reliable, repeatable opening and closing performance over many service cycles.
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" - 36" (ASME Class 150 - 600)
Orientations
Horizontal and Vertical
Thread Type
ACME Threads
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
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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