Description
Subsea Hydraulic Bolt Tensioners for Harsh Environments
The STU series subsea bolt tensioners are designed and manufactured to meet the demanding requirements of divers working in harsh subsea environments. Featuring a user-friendly two-piece design, the system consists of a quick-fit/release threaded puller and a hydraulic load cell with an integral bridge. The extra-long 30 mm piston stroke reduces the need for frequent resetting operations, providing a consistent and reliable method for tensioning subsea bolted joints.
These tensioners are suitable for a range of thread sizes, and the interchangeable quick-fit/release pullers can be ordered separately, offering added flexibility and cost savings.
Key Features:
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Capacities: 256 kN to 2483 kN
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Bolt Sizes: 1″ to 3½” diameter
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Working Pressure: 1500 bar
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Design: Single-acting with manual piston retraction
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Construction: High-grade alloy steel for durability
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Subsea Operation: Simple two-piece design for ease of use by divers
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Piston Stroke: Visible maximum piston stroke indicator for clear operation
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Quick Connect: Dual quick-connect couplings for easy connection
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Compatibility: Fits most ANSI and API flanges, along with some Compact flanges
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Interchangeable Pullers: Quick-fit pullers for covering multiple bolt sizes
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Customization: Special design tensioners available upon request
The STU series subsea bolt tensioners are built to deliver reliable performance, ease of use, and significant cost savings in subsea bolt tensioning applications.
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