IMPA: 614180

Marine Straub Open-Flex Pipe Clamp – 50mm (57-61mm) NBR

The Marine Straub Open-Flex Type Clamp is designed for emergency repair of pinhole leaks, perforations, or cracks in steel pipes. Its open-flex design allows quick installation without cutting or dismantling the pipeline, eliminating the need for welding or pipe fittings. Ideal for water, air, oil, and steam lines, this clamp provides a reliable seal up to 16 kgf/cm².

Constructed with a SUS316 stainless steel body and NBR (acrylonitrile-butadiene rubber) sleeve, it is suitable for oil and organic gas applications. The 50mm nominal size accommodates pipe outside diameters from 57 to 61 mm, with a working pressure of 10 bar. The clamp comprises a housing, rubber sleeve, bolts, nuts, and washers for secure sealing.

Key Features

Technical Specifications

SpecificationValue
TypeStraub Open-Flex Clamp
Body MaterialStainless Steel SUS316
Rubber Sleeve MaterialNBR (Acrylonitrile-butadiene Rubber)
Suitable MediumOil, Organic Gas
Nominal Size50 mm
Pipe OD Range57 – 61 mm
Working Pressure10 bar
Max. Working Pressure16 kgf/cm²
UnitPer Piece

Frequently Asked Questions

What is a Straub Open-Flex clamp used for?

It is used for emergency repair of leaks in steel pipes such as pinholes, cracks, or perforations, without cutting or welding the pipe.

What pipe diameter does this clamp fit?

This clamp fits pipes with an outside diameter of 57 to 61 mm (nominal size 50 mm).

Can this clamp be used for oil and gas?

Yes, the NBR rubber sleeve is suitable for oil and organic gas media.

What is the maximum working pressure?

The maximum working pressure is 16 kgf/cm² (approximately 15.7 bar).

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