Straub Straub-Flex Pipe Coupling | Pipe ...

Straub - Straub-Flex Pipe Coupling | Pipe Joints

Supplier: KCES

Straub-Flex Pipe Coupling | Pipe Joints

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The Straub-Flex is a range of axially flexible pipe couplings suitable for all pipe materials. Pipe Coupling, Straub-Flex compensates for expansion or contraction.

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The multifunctional, axially-flexible pipe coupling for all pipe materials.

For water supply, sewage treatment, mining, industrial plants, power plants and shipbuilding. STRAUB-FLEX absorbs noise, vibrations, and small amounts of expansion and contraction.

Not pull out resistant pipe coupling for all pipe materials.

Compensates for expansion / contraction
Working pressure up to 25 bar
Outside diameters 48.3 to over 4.000.0 mm
Temperature range -20°C to +80°C

Straub Flex Sizes

STRAUB-FLEX 1 | 48.3 - 168.3 mm
STRAUB-FLEX 2 | 172.0 - 2032.0 mm
STRAUB-FLEX 3 | 219.1 - 4064.0 mm
STRAUB-FLEX 3.5 | 323.9 - 4064.0 mm
STRAUB-FLEX 4 | 323.9 - 4064.0 mm

Straub Open Flex

STRAUB-OPEN-FLEX 1 | 48.3 - 168.3 mm
STRAUB-OPEN-FLEX 2 | 172.0 - 2032.0 mm
STRAUB-OPEN-FLEX 3 | 219.1 - 4064.0 mm
STRAUB-OPEN-FLEX 3.5 | 323.9 - 4064.0 mm
STRAUB-OPEN-FLEX 4 | 323.9 - 4064.0 mm
STRAUB-OPEN-FLEX GT | 73.0 - 168.3 mm
STRAUB-FLEX / STRAUB-OPEN-FLEX Overview

Straub Step Flex

STRAUB-STEP-FLEX 2 | 250.0 - 812.8 mm
STRAUB-STEP-FLEX 3 | 914.4 - 4064.0 mm

See Progressive Sealing Effect video. See how the Straub Flex pipe coupling lets the medium in the pipe flow in behind the sealing lip, pressing it even more firmly onto the surface of the pipe. This is called the "progressive sealing effect".

For more information please call or use the enquiry box for a direct reply.

To contact KCES about Straub Straub-Flex Pipe Coupling | Pipe Joints use Get a quote.

The multifunctional, axially-flexible pipe coupling for all pipe materials.

For water supply, sewage treatment, mining, industrial plants, power plants and shipbuilding. STRAUB-FLEX absorbs noise, vibrations, and small amounts of expansion and contraction.

Not pull out resistant pipe coupling for all pipe materials.

Compensates for expansion / contraction
Working pressure up to 25 bar
Outside diameters 48.3 to over 4.000.0 mm
Temperature range -20°C to +80°C

Straub Flex Sizes

STRAUB-FLEX 1 | 48.3 - 168.3 mm
STRAUB-FLEX 2 | 172.0 - 2032.0 mm
STRAUB-FLEX 3 | 219.1 - 4064.0 mm
STRAUB-FLEX 3.5 | 323.9 - 4064.0 mm
STRAUB-FLEX 4 | 323.9 - 4064.0 mm

Straub Open Flex

STRAUB-OPEN-FLEX 1 | 48.3 - 168.3 mm
STRAUB-OPEN-FLEX 2 | 172.0 - 2032.0 mm
STRAUB-OPEN-FLEX 3 | 219.1 - 4064.0 mm
STRAUB-OPEN-FLEX 3.5 | 323.9 - 4064.0 mm
STRAUB-OPEN-FLEX 4 | 323.9 - 4064.0 mm
STRAUB-OPEN-FLEX GT | 73.0 - 168.3 mm
STRAUB-FLEX / STRAUB-OPEN-FLEX Overview

Straub Step Flex

STRAUB-STEP-FLEX 2 | 250.0 - 812.8 mm
STRAUB-STEP-FLEX 3 | 914.4 - 4064.0 mm

For more information please call or use the enquiry box for a direct reply.

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To contact KCES about Straub Straub-Flex Pipe Coupling | Pipe Joints use Get a quote.

AI Overview BETA

The Straub-Flex is an axially flexible pipe coupling range for all pipe materials, accommodating expansion or contraction. Its progressive sealing effect lets pipe contents flow behind the sealing lip, pressing it more firmly against the pipe surface. Water supply, sewage treatment, mining, power plants and shipbuilding are named uses where it absorbs noise and vibration in pipework.

Working pressure: up to 25 bar
Available pipe diameters: 48.3–4064.0 mm
Temperature range: -20°C to +80°C
The coupling is not pull-out resistant
Variants include Straub-Flex, Open-Flex and Step-Flex models

Source: listing by KCES on IndustrySearch · Updated 3 Nov 2026

AI Overview is generated by artificial intelligence and may contain mistakes.

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