Hot Tapping a 10” pipe from 20” header

You are often faced with the following problems during alteration works:

1. Insertion of branch in operational pipeline

2. Insertion of branch that require to drain off large amount of fluid

3. Insertion or replacement of valve in an operational pipeline

OUR ADVANTAGES

We provide hot tapping service with the following advantages:

· One-Stop Service – Hot Tap accessories & service, insulation & piping works

· Convenient – No need for massive draining of fluid

· Hassle Free – Installation of valves, pressure & vacuum gauge, thermowell

· Reliable – Many years of hot tapping experience

· Cost Effective – Our hot tap services are price competitive

OUR HOT TAPPING CAPABILITIES

We are capable of providing hot tapping service for the following applications:

· Hot tapping of carbon steel, galvanized steel, stainless steel, fiberglass, copper and brass pipes

 

· Wet tapping of cast iron, ductile iron and concrete pipes

· Tapping of pipeline diameter up to 48”

· Tapping of pipeline operating pressure up to 2,000 psig

· Tapping of pipeline temperature up to 300°C

· Tapping of pipeline containing oil, gas, water, steam or wastewater.

· Project References

TYPICAL APPLICATIONS OF HOT TAPPING

Hot tapping is used in the following applications:

· Insertion of a new pipe branch in an operational pipeline

· Insertion of branch when it is costly or time-consuming to drain the pipe contents

· Preparing the pipeline for line stopping

Objective:                    Size-on-Size Hot Tapping of a 12” pipe from 12” header.

 

Fluid:                             Water

 

Pipe Pressure:            15 bar

HOT TAPPING SERVICE

SERVICE DESCRIPTION

Hot tapping is a method of employing an under pressure drilling machine to cut a hole in an operating pipeline or storage vessel which allows for a new branch connection from the existing pipe or vessel without any interruption to the flow.

 

Line stopping is a procedure that temporarily stops flow in a operating pipeline without depressurizing or purging, so that the isolated section of pipe can be repaired, replaced or altered.

PROBLEMS FACED IN ALTERATION WORKS

Hot Tapping Process

Work completion

Hot Tap Coupon

Equipment Set-Up

Tee/ Branch

 

Valve

 

Hot Tap Machine

 

Flow

 

PIPE CONDITION — WITH OR WITHOUT FLOW

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Alstern Technologies Group