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Crane lifting an 84-inch bag line stop assembly out of the line

Critical work.Zero guesswork.

Innovation since 1924.

Koppl isolates, modifies, and repairs live systems with one field plan built for continuity, control, and safe execution.

Discuss the line Explore capabilities

Safety firstTask-specific controls

Field ledExperienced execution

Project planningMethod before mobilization

Direct responseTalk to the field crew

Choose the method around the constraint

Services built around system continuity.

Five core service paths help owners, engineers, contractors, and operators identify the right live-line or pressure-pipe strategy, then get the application in front of the right field expert.

Koppl service capabilities
Hot tap machine and orange valve connected to a pipe in an excavationConnect without shutdownHot TappingAdd a branch connection to an operating pipeline and maintain service across the wider system.Explore service Crane lifting an 84-inch bag line stop assembly out of the lineCreate controlled isolationLine StoppingTemporarily isolate a section of active pipe so modifications or repairs can move forward with less system-wide disruption.Explore service Pipe-freezing jacket fitted around an angled pipe in a plantIsolate without drainingPipe FreezingCreate a monitored ice plug for targeted work where draining or a broader shutdown is impractical.Explore service Mueller insertion valve installed on a water main in a shored trenchAdd permanent controlValve InsertionInstall a permanent valve on an active water main with minimal service interruption and a focused excavation footprint.Explore service Exposed concrete pressure pipe with a steel connection section and red endIsolate, fabricate, repairConcrete Pressure Pipe RepairKOPPL-KRETE™ combines isolation, in-house fabrication, and field repair for concrete pressure pipe systems.Explore service

Koppl video

Double Line Stop External Bypass Installation.

This animation shows how Koppl installs a double line stop with an external bypass.

See more resources

ISS family of companies

Koppl and ISS

Koppl and Industrial Specialty Services are separate companies that work together. Each brings its own field crews, service capabilities, and technical experience.

Live-line water and pipeline intervention, field services, and purpose-built equipment.

Explore Koppl

Integrated specialty mechanical services for industrial systems across the Americas.

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Service overviews

Services 101

Explore the methods Koppl uses for live-line connections, temporary isolation, and pipe freezing.

01

Hot Tapping 101

A field-oriented introduction to the components, planning inputs, sequence, and limits behind a live-line branch connection.

Read the overview
02

Line Stopping 101

How temporary stopping equipment, completion fittings, and bypass planning can isolate targeted work without a broad shutdown.

Read the overview
03

Pipe Freezing

What an ice plug does, how it is monitored, and what project conditions need review before freezing begins.

Read the overview

Project planning

Start with the line conditions.

Share the details below so Koppl can assess the work and identify the service options for your system.

  1. Pipe and operating details

    Include pipe size and material, operating pressure and temperature, and the contents of the line.

  2. Site access

    Provide the job location, available working space, and current photographs or drawings.

  3. Scope and schedule

    Describe the repair or modification, service continuity needs, and the required timing.

A century in the field

The archive is part of the proof.

Koppl’s roots are in Southern California machine work. Historic photographs document the people and equipment behind the company’s live-line services.

Explore the history
Historic photograph of Mr. Koppl and another worker operating hot tap equipment in a trench
Koppl archiveMr. Koppl working with hot tap equipment.

Work in context

Koppl projects in the field.

Explore Koppl field work, from live-line connections to temporary isolation and pressure-pipe repair.

Hot tap machine and orange valve connected to a pipe in an excavationHot Tapping

Hot tap connection

A tapping machine, valve, and bolted fitting mounted on exposed pipe.

Crane lifting an 84-inch bag line stop assembly out of the lineLine Stopping

Line stop equipment

A crane lifts an 84-inch bag line stop assembly out of the line.

Blue EZ Valve insertion valve installed on an exposed water main in an excavationValve Insertion

EZ Valve insertion

An AVT EZ Valve insertion valve installed on an exposed water main.

Koppl and ISS locations

Local expertise. One connected network.

Find Koppl regional contacts and ISS offices across the United States, Canada, and the U.S. Virgin Islands.

21Koppl and ISS directory contactsExplore all locations
KopplISS

Zoom in or choose a region, then select a marker for its address and contact details.

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Pinch or use + / − to zoom. Drag to move when zoomed. Focus the map and use arrow keys to pan, plus or minus to zoom, and Home to reset.

Koppl and ISS service networkAn approximate regional map of 21 Koppl and ISS contacts. Koppl uses red circles. ISS uses white squares. Hawaii and St. Croix appear in inset maps.HAWAIIST. CROIX, USVI

Select a marker to see its contact details.

Regional positions are approximate. Use the contact page for street directions. Texas is a regional contact. St. Croix lists a mailing address.

West & Pacific 2

Mountain & Central 2

Gulf Coast 10

Midwest & East 5

Canada & Caribbean 2

Start with what you know

Put a controlled plan in motion.

Share the line size, material, pressure, location, timing, and desired outcome. The field crew can help identify what comes next.

Call (323) 888-2211Email project details

24/7 emergency responseFind a regional contact

Frequently asked in planning

Start with the question behind the job.

Answers to common questions about service options, project details, and regional support.

View all FAQs
01What information helps Koppl evaluate a project?

Start with the pipe size, material, operating pressure and temperature, media, location, access conditions, schedule, and the outcome you need. Drawings and current photos are useful when available.

02Can work be performed without a full system shutdown?

Many Koppl methods reduce or avoid broad shutdowns. The right method depends on the line condition, service, operating parameters, and the work that must occur downstream.

03Does Koppl provide emergency response?

Koppl supports qualified emergency needs around the clock. Call (323) 888-2211 so the crew can assess the condition and route the request.

04Where does Koppl provide service?

Koppl maintains regional service coverage from California, Hawaii, Texas, and North Carolina and supports work beyond those locations. The wider ISS family extends the connected footprint across the United States, Canada, and the U.S. Virgin Islands.