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Compact blocking devices for pipes and sewers

MU-Stopping Bladders ’premium’

[Translate to Englisch:] Absperrblasen Modell MU

In cases of emergency, civil protection organisations require variable stopping equipment in order to implement protection measures regarding ground water. The various MU-Stopping Bladders offer the possibility to shut off pipelines of up to 1000 mm, including in water protection areas. Their easy handling and light construction facilitate rapid reaction in terms of seal testing, sewer repair work, pipeline TV inspection, pipe and shaft restoration, and pipeline building.

The profiling of the sealing surface has been designed to compensate any irregularities in the pipe surface, and the thick rubber makes the MU-Stopping Bladders ‘premium’ an ideal and resistant device for use in construction zones.

MU-Stopping Bladders ‘premium’ need inflating with a pressure of 1.5 bar (resp. 1.0 bar for 450 – 1000 mm diameter pipes) and are equipped with an extensive air connection including safety valve.

Available sizes:

  • DN 80 - 150 mm
  • DN 100 - 200 mm
  • DN 150 - 300 mm
  • DN 200 - 500 mm
  • DN 300 - 600 mm
  • DN 450 - 1000 mm

Attention!
We offer various accessories for easy and safe filling of all stopping bladders: air hose, adapter, hand pumps, safety switch units etc.

MU-Stopping Bladders ’comfort’

[Translate to Englisch:] Absperrblasen Modell EURO

MU-Stopping Bladders ’comfort’ are an inexpensive alternative to the MU-Stopping Bladders ’premium’. Sewer specialists can deploy MU-Stopping Bladders ’comfort’ to shut off pipelines. The rubber-based body allows the bladders to be filled to a pressure of 2.5 bar (resp.1.5 bar for DN 500-1000 mm and DN 600-1200 mm diameters).

The resistant MU-Stopping Bladders ’comfort’ are suited to rough construction sites and are available in a different range of sizes and construction lengths than the ‘premium’ model.

Available sizes:

  • DN 70 - 150 mm
  • DN 100 - 200 mm
  • DN 150 - 300 mm
  • DN 200 - 400 mm
  • DN 350 - 600 mm
  • DN 500 - 800 mm
  • DN 500 - 1000 mm
  • DN 600 - 1200 mm

Also available in diameters DN 750 – 1500 mm (1.0 bar) and DN 800 – 1800 (1.0 bar)

MU-Stopping Bladders ’basic‘

[Translate to Englisch:] Absperrblasen Modell EURO I

The MU-Stopping Bladders ‘basic’ are an inexpensive alternative to the MU-Stopping Bladders ‘premium’ and ‘comfort’ models. The rubber-based body of the MU-Stopping Bladders ‘basic’ allows filling up to 1.5 bar.

The resistant MU-Stopping Bladders ’basic’ are suited to rough construction sites and are available in a different range of sizes and construction lengths than the ‘premium’ and ‘comfort’ models.

Available sizes:

  • DN 70 - 150 mm
  • DN 100 - 200 mm
  • DN 150 - 300 mm
  • DN 200 - 400 mm
  • DN 200 - 500 mm
  • DN 300 - 600 mm
  • DN 600 - 1200 mm

MU-Test Stopping Bladders ’premium’ model with bypass

[Translate to Englisch:] Absperrprüfblasen „Modell MU“ mit Rohrdurchgang

With the MU-Test Stopping Bladders model ‘premium’ with bypass, sewer specialists can seal off drainage and sewer pipelines up to DN 1000 mm in diameter, as well as using them for seal testing operations (i.e. to DIN EN 1610 standards).

Sectional testing, for instance joint seal-testing, is also possible. As is the case with all other stopping equipment from MÜLLER, the hardwearing test stopping bladders for building sites fit into the pipelines through all shaft openings without difficulty.

The field of application of the MU-Test Stopping Bladders ‘premium’ model with bypass range from sewer cleaning operations, TV inspection, seal testing, pipeline and shaft restoration, sewer airing, survey and inspection work up to the laying of new pipelines.

Available sizes:

  • DN 80 - 150 mm
  • DN 100 - 200 mm
  • DN 150 - 300 mm
  • DN 200 - 500 mm
  • DN 300 - 600 mm
  • DN 450 - 1000 mm

MU-Test Stopping Bladders model ‘comfort’

[Translate to Englisch:] Absperrprüfblasen Modell EURO

The MU-Test Stopping Bladders ‘comfort’ model is an alternative to the MU-Test Stopping Bladders ‘premium’ model that allows pipelines to be sealed off. Thanks to the rubber body, the ‘comfort’ model can be filled up to 2.5 bar (resp. 1.5 bar DN for 500-1000 mm and DN 600-1200 mm for diameters).

The resistant MU-Stopping Bladders ’comfort’ are suited to rough construction sites and are available in a different range of sizes and construction lengths than the ‘premium’ models.

Available sizes:

  • DN 70 - 150 mm
  • DN 100 - 200 mm
  • DN 150 - 300 mm
  • DN 200 - 400 mm
  • DN 350 - 600 mm
  • DN 500 - 800 mm
  • DN 500 -  1000 mm
  • DN 600 -  1200 mm

MU-Test Stopping Bladders ’basic’ model

[Translate to Englisch:] Absperrprüfblasen Modell EURO I

The MU-Test Stopping Bladders ‘basic’ model is a less expensive alternative to the MU-Test Stopping Bladders ‘premium’ model and ‘comfort’. The rubber body allows the ‘basic’ model to be inflated to a pressure of 1.5 bar.

The resistant MU-Test Stopping Bladders ’basic’ models are suited to rough construction sites and are available in a different range of sizes and construction lengths than the ‘premium’ and ‘comfort’ models.

Available sizes:

  • DN 70 - 150 mm
  • DN 100 - 200 mm
  • DN 150 - 300 mm
  • DN 200 - 400 mm
  • DN 200 - 500 mm
  • DN 300 - 600 mm
  • DN 600 - 1200 mm

MU-Stopping Bladders ‘comfort’ model for pipe diameters from DN 40 mm

[Translate to Englisch:] MU-Absperrblasen für Rohrdurchmesser ab DN 40 mm

These stopping bladders have been specially designed for pipes with a small diameter. As a universally suitable blocking device, they are used when immediate action is required.

Easy handling coupled with light construction enables fast reaction, e.g. for domestic use. The specially profiled sealing surfaces compensate any irregularities in the pipe surface.

The MU-Stopping Bladders for pipe diameters from DN 40 mm are fitted with a tyre valve and can be filled to a maximum pressure of 2.5 bar.

Available sizes:

  • DN 40 mm
  • DN 50/75 mm
  • DN 75/100 mm
  • DN 100/150 mm
  • DN 150/200 mm

MU-Stopping Bladders ‘comfort’ model for pipe diameters from DN 50 mm

[Translate to Englisch:] MU-Absperrblasen für Rohrdurchmesser ab DN 50 mm mit Rohrdurchgang

These Stopping Bladders have been specially designed for pipes with a small diameter. As a universally suitable stopping device, they are used when immediate action is required.

Easy handling coupled with light construction enables fast reaction, e.g. for domestic use. The specially profiled sealing surfaces compensate any irregularities in the pipe surface.

The MU-Stopping Bladders for pipe diameters from DN 50 mm are fitted with a tyre valve and can be filled to a maximum pressure of 2.5 bar.

Available sizes:

  • DN 50 mm
  • DN 75/100 mm
  • DN 100/150 mm
  • DN 150/200 mm

MU-Stopping Bladders ’comfort’ model with a “large” bypass

[Translate to Englisch:] MU-Absperrblase mit „großem“ Rohrdurchgang (Bypass)

For sewer specialists, this stopping bladder is an alternative to the MU-Test Stopping Bladders, the important difference being that this stopping bladder has been developed for use when an especially large bypass is needed within the bladder.

This stopping bladder is available up to an 8” bypass diameter (DN 500-1000 mm).

Available sizes:

  • DN 150 -   300 mm /
    Rohrdurchgang 2“ (  50 mm)
  • DN 200 -   400 mm /
    Rohrdurchgang 4“ (100 mm)
  • DN 350 -   600 mm /
    Rohrdurchgang 6“ (150 mm)
  • DN 500 - 1000 mm /
    Rohrdurchgang 8“ (200 mm)

Pneumatic MU-Pipe Stoppers, version MU-PVE Ei

[Translate to Englisch:] MU-PVE Ei

The pneumatic MU-Pipe Stoppers version MU-PVE Ei has been specially developed for use in “egg-shaped” sewer pipe cross-sections and is available in the following sizes:

  • DN 250/  375 mm
  • DN 300/  450 mm
  • DN 300/  525 mm
  • DN 400/  600 mm
  • DN 500/  750 mm
  • DN 600/  900 mm
  • DN 700/1050 mm
  • DN 800/1200 mm
  • DN 900/1350 mm

Divided versions are available in the following sizes:

  • DN 700/1050 mm
  • DN 800/1200 mm
  • DN 900/1350 mm

Larger diameters and other shapes are available on request.

Pneumatic MU-Pipe Stoppers, versions MU-PVE and MU-PVD

[Translate to Englisch:] MU-PVD
[Translate to Englisch:] MU-PVE

Newly laid as well as operational drainage sewers need to be seal-tested at regular intervals and where necessary, sealed off and cleaned. Sewer specialists therefore require secure pipe stoppers that are suitable for all potential pipe diameters and cross-sections. Our solution for this is the pneumatic MU-Pipe Stopper system MU-PVE with a single seal or MU-PVD with a double seal (for increased counter-pressure). The patented radial seal allows the stoppers to be inflated up to a pressure of 4 bar.

Both pipe stopping systems offer uncompromising stopping technology for sewer pipe cross-sections. As an experienced practitioner, you will appreciate the need for secure and hardwearing pipe stoppers. Our pneumatic MU-Pipe Stoppers fulfil all requirements encountered in your daily routine.

The MU-Pipe Stopper versions MU-PVE and MU-PVD are available in the following sizes:

  • DN 150mm
  • DN 200 mm
  • DN 250 mm
  • DN 300 mm
  • DN 400mm

MU-Pipe Stoppers with single seals are also available in smaller sizes:

  • DN 100 mm
  • DN 125 mm

Additionally, MU-PVE and MU-PVD versions in sizes DN 500-1800 mm diameter are manufactured as a welded construction with a single or double seal. MU-Pipe Stoppers with diameters larger than DN 600 mm can be produced in divided sections to allow entry through shaft openings of Ø 625 mm.

Further sizes are available on request!

 

Mechanical MU-Pipe Stoppers: versions MU-MVE and MU-MVD

[Translate to Englisch:] Mechanische MU-Rohrverschlüsse Version: MU-MVE und MU-MVD

It is often necessary to seal off drainage pipelines on a temporary or permanent basis. Mechanical MU-Pipe Stoppers do not depend on air pressure and are of simple but robust construction. They are economical and maintenance-free., and therefore suitable for long-term unsupervised operation.

The bypass on all mechanical pipe stoppers allows seal testing to be carried out, for example in accordance with DIN EN 1610. Alternatively, MU pipe stoppers are available with a double seal (MU-MVD) for increased counter-pressure.

MU-Pipe Stoppers MU-MVE and MU-MVD are available in the following sizes:

  • DN 150 mm
  • DN 200 mm
  • DN 250 mm
  • DN 300 mm
  • DN 400 mm

MU-Pipe Stoppers with single seals are also available in smaller sizes:

  • DN 80 mm
  • DN 100 mm 
  • DN 125 mm