IMPA: 614164

Marine Straub Pipe Coupling Flex Type with NBR Rubber Sleeve – 125mm (137-142mm OD)

This marine-grade Straub pipe coupling is a versatile, no-weld pipe connection solution designed for fast and reliable pipe joining onboard ships. The Flex Type design provides excellent pipe alignment flexibility and vibration absorption, making it ideal for use in engine rooms, ballast systems, and other shipboard piping systems where quick repairs or connections are needed.

Featuring a durable NBR (acrylonitrile-butadiene rubber) sleeve, this coupling is suitable for handling oil and organic gases, with a working pressure of up to 8 bar. The coupling consists of a stainless steel housing (SUS 316 or SUS 304), rubber sleeve, bolts, nuts, and washers. It fits pipes with an outside diameter range of 137-142 mm and a nominal size of 125 mm. The maximum working pressure can reach 16 kgf/cm².

Key Features

Technical Specifications

SpecificationValue
TypeFlex Type
Rubber Sleeve MaterialNBR (Acrylonitrile-butadiene Rubber)
Suitable MediaOil, Organic Gas
Nominal Size125 mm
Pipe Outside Diameter Range137 – 142 mm
Working Pressure8 bar
Max Working Pressure16 kgf/cm²
Housing MaterialStainless Steel SUS 316 / SUS 304
UnitPer Piece

Frequently Asked Questions

What is the working pressure of this coupling?

The working pressure is 8 bar, with a maximum working pressure of 16 kgf/cm².

What pipe diameter does this coupling fit?

It fits pipes with an outside diameter range of 137 to 142 mm, nominal size 125 mm.

Is this coupling suitable for oil and gas applications?

Yes, the NBR rubber sleeve is designed for use with oil and organic gases.

Can this coupling be installed without welding?

Yes, the Straub Flex Type coupling requires no welding or special tools for installation.

Inquire About This Product

Contact us for pricing, availability, and bulk orders:

📧

📞 [Phone protected by JavaScript]

💬

💚 Add on WeChat

Open WeChat and add this ID:

Select Language