NoTap® Pipe Blocking

Product Type(s) : Plumbing Products
Description :

NoTap® pipe blocking is a complete system for easily and economically repairing pipes and installing or replacing equipment in your pipe system, without having to drain the system first. Sections of pipe to be worked on can quickly be temporarily isolated by means of internally blocking the pipes with inflated balloons.

The NoTap method can be used for hot water, fresh (tap) water, compressed air and refrigerants (glycol and salt based solutions). It is suitable for all pipes of metal, for example: black steel, painted steel, galvanized steel, stainless steal as well as copper. Valid for both thin-walled and annealed tempered pipe.

Blockings can be carried out on pipes up to DN50 (2") and connections up to DN300 (12").

WHERE TO BUY

FEATURES

10 GOOD REASONS TO USE NOTAP
  • No need to drain the system
  • No refilling or venting the system after work is completed
  • Easy installation as no soldering, cutting or welding is necessary
  • Can be used on all types of metal piping: black steel, painted steel, galvanized, stainless and even copper
  • Saves energy, as no hot water needs to be drained
  • Can be used for hot water, fresh water, compressed air and refrigerants (glycol and salt based solutions)
  • Eliminates problems associated with the use of heating equipment, such as welding, soldering, etc.
  • Less corrosion in the system as no fresh, oxygen-rich water is added
  • Method is environmentally friendly, as no hazardous water needs to be drained
  • No fragments from drilling operations will enter into the system
Advantages for the contractor
  • The job time is reduced considerably
  • Better profitability as more jobs can be carried out within a given time
  • Solves problems that are otherwise difficult to manage
  • Can offer customers better service and solutions
  • No need to handle chemicals when modifying cooling systems
Advantages for the property owner
  • Tenants are not disturbed during pipe work
  • Tradesmen are able to carry on with their operation despite the pipe work (dentists, hospitals, etc.)
  • Lower installation costs
  • Work can be carried out during normal business hours, eliminating the need for costly weekend or after hour work
  • Less corrosion in the water system for increased life expectancy of the system
  • Reduced risk for water damages due to faucets left open
  • Environmentally friendly
Theory of Operation

Blocking is done by inserting a balloon into a pipe by means of a hole drilled into the pipe through a mounted clamp and then inflating the balloon. The section of the pipe to be worked on can thus be isolated without having the expense and trouble of draining and then re-filling the system. When the work is done, the balloon is deflated and removed, and a sealing cap is mounted to the clamp.

DIMENSIONS & SPECIFICATIONS

NoTap Pipe Blocking Balloons 

Blocking is done by inserting a balloon into a pipe by means of a hole drilled into the pipe through a mounted clamp and then inflating the balloon. The balloons come in four sizes, suited for different pipe dimensions. The balloons and tooling are color-coded to help select correct dimensions.

When the work is done, the balloon is removed and a sealed cap is mounted to the clamp.

Technical Data, Balloons

Media: hot water, fresh (tap) water, compressed air and refrigerants (glycol and salt based solutions). For other applications, contact us.
Ballon type 10-1 16-1 16-2 16-3
Plug color: Grey White Black Yellow
Pipe dims, Copper: 15,18, 22 28 35/36,42 54
Pipe dims, Steel: DN10,15 DN20,25 DN32,40 DN50
Support tube: 10-1 grey 16-1 white 16-2 black 16-3 yellow
Max system pressure: 5 bar 5 bar 5 bar 3 bar
Min-Max system temperature: 10°-50°C 10°-50°C 10°-50°C 15°-40°C
Max blocking time at 30°C: 4 hours 4 hours 4 hours 1 hours
Max blocking time at 40°C: 2 hours 2 hours 2 hours 1 hour
Max blocking time at 50°C: 1 hour 1 hour 1 hour


Dimension Guides

Use the headings below for the correct dimension interval of pipe to be blocked. Go down to the table to find the exact dimension and article description that is needed for the blocking. See also the NoTap Guide for tables matching the correct dimension of pipe, drill size and clamp article numbers.

Clamps with check valves are always used when pipe blocking and even for smaller branch connections. For branch connections, use one of our connectors which have a collar that opens the check valve.

 

NoTap Balloon Kit 10-1 

For pipe dimensions 14 - 23 mm

Colour code for these parts: Grey

Max system pressure 5 bar, Max system temperature 50°C

Pipe diameter (OD) Drill diameter
14-17 mm, (Cu 15) 8.4 mm
17-19 mm, (DN 10/Cu 18) 8.4 mm
21-23 mm, (DN 15/Cu 22) 8.4 mm

 

NoTap Balloon Kit 16-1 

For pipe dimensions 24 - 34 mm

Colour code for these parts: White

Max system pressure 5 bar, Max system temperature 50°C

Pipe diameter (OD) Drill diameter
24-26 mm 14.4 mm
26-32 mm, (DN 20/Cu 28) 14.4 mm
33-34 mm, (DN 25) 14.4 mm

 

NoTap Balloon Kit 16-2 

For pipe dimensions 35 - 49 mm

Colour code for these parts: Black

Max system pressure 5 bar, Max system temperature 50°C

Pipe diameter (OD) Drill diameter
35-38 mm, (Cu 35) 14.4 mm
39-45 mm, (DN 32/Cu 42) 14.4 mm
46-49 mm, (DN 40) 14.4 mm

 

NoTap Balloon Kit 16-3 

For pipe dimensions 50 - 60.3 mm

Colour code for these parts: Yellow

Max system pressure 3 bar, Max system temperature 40°C

Pipe diameter (OD) Drill diameter
50-52 mm 14.4 mm
53-58 mm (Cu 54) 14.4 mm
55-60.3 mm (DN 50) 14.4 mm

VIDEOS

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