Quick Opening Closures, Pipeline Closures
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GD Engineering Systems is the Global leader in Closure Products
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In-Line leads the market in quick-opening threaded closures. Fast deliveries from inventory on most sizes. Premier safety and operational design. |

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GD BANDLOCK2
The GD BANDLOCK2 quick opening closure has been designed by finite element analysis with verification by strain gauge analysis and classical calculations.
All international pressure vessel codes can be met including ASME VIII, PD 5500, AD Merkblatt, CODAP and Stoomwezen. The design is approved by the major worldwide oil and gas authorities, companies and contractors.
The proven locking mechanism which gives the GD Closure Systems BANDLOCK2 closure its name incorporates a duplex stainless steel conical band fitted between the door and neck to transmit loads uniformly to the full 360 degree circumference of the neck.
Key Features:
Designed to all International Pressure Vessel Codes
Design by Finite Element Analysis
Approval by Oil and Gas Majors
One Minute Operation

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In-Line Figure 700 Horizontal Closure
The design of the In-Line Figure 700 Quick Opening Closure is maintained in accordance with the latest mandatory Edition and Addenda of ASME Section VIII Division 1. ASME Code stamping ("U") and partial data reports (U-2A) are optional. All pressure boundary parts and fabrication conform to NACE MR-Ol-15.
Standard In-Line Closure Weld Hubs are manufactured from SA350-LF2 Class 1 forged steel with chemistry restrictions to improve weldability. ASTM A694 Grades F42 to FlO can be provided to match high yield, thin-walled pipe. Weld hubs can be modified to accommodate material of unequal yield strengths up to 1.5 times the specified minimum yield strength of the standard SA350-LF2 Class 1 Weld Hub per CSA and ASME Piping Codes.
In-Line Closures come equipped with standard o-ring seals, eliminating the need for purchasing and stocking expensive custom seals.


