Southeast Asia Building – May-June 2018

provided huge space savings. Suction

diffusers are installed on the suction

side of the mechanical pumps, reduce

turbulence by streamlining the flow of

water and allow for an immediate, 90°

angle change of direction at the pump.

This differs from welded systems, which

require a long radius elbow measuring

five (5) times the pipe OD to be installed

before the pump. For the pumps feeding

400mm pipe, that is an additional two

(2) metres of space for every pump in the

mechanical room.

“If we had installed a flanged/welded

system, the mechanical room would have

been exponentially larger. We were able

to cut the footprint and pass along those

extra metres to the owner as billable

space,” remarked Sasongko.

install the units. Flanged expansion joints
would have interfered with other systems
in the shafts, and would have been very
difficult to install,” he added.

Speed of installation
Another critical factor was the project
timeline. As a landmark project for the
developer, it was crucial that Jaya Teknik
delivered the project on or ahead of
schedule. In addition to utilising Victaulic
Style 155 Expansion Joints in the building’s
risers, the contractor also opted to use
Victaulic grooved couplings, fittings,
valves and accessories for the mechanical
pump room. Grooved couplings provided
a faster, easier installation than flanged
or welded joints for a number of reasons:

1. Couplings provided a cold formed joint

• no hot works were required on site; 2)
  Couplings installed with only two (2) bolts
  and nuts on all sizes, as opposed to flanges
  which require a growing number of bolts
  and nuts as the sizes increase; and 3)
  Couplings installed five times faster than
  flanges and 10 times faster than welding.
  Overall Jaya Teknik completed the project

in 50 percent less man hours than a

welded system would have required.

“Using Victaulic products is the

easiest and fastest way to install the

HVAC mechanical systems in the pump

room,” said Sasongko. “With a tight project

schedule, Victaulic products helped us

finish the installation in 50 percent less

time. We were able to focus on other

areas of the project to ensure an on-time

delivery to the owner,” he added.

Small footprint

Tenantable space in the IFC needed to

be maximised to offer as many rentable

units as possible. Therefore, the footprint

of the air-conditioning equipment in

the mechanical pump room was a large

concern for both the developer and the

consultants, Ciriajasa and Asdi Swasatya.

Victaulic pump dressing products –

including couplings, fittings, valves and

specialty components – helped the team

achieve a much smaller footprint than

a welded/flanged system would have

required.

In particular, Victaulic suction diffusers

Service

Chilled Water

Condenser Water

Mechanical Pump Room

Size Range

150 – 400mm

500mm

100 – 400mm

Pipe Material

Carbon Steel

Galvanized Carbon Steel

Carbon Steel

Victaulic Products Utilized

Style 155 Expansion Joints

Rigid & Flexible Couplings

Style 155 Expansion Joints

Rigid & Flexible Couplings

Series 731 Suction Diffusers

Series 761 Butterfly Valves

Series 716 Check Valves

Rigid & Flexible Couplings

Fittings

For more information, visit http://www.victaulic.com.

Photo by Victaulic

MAY-JUNE 2018 SEAB 47

ARCHITECTURE + INTERIOR

“Victaulic Style 155 Expansion Joints were

a critical component in minimising system

footprint,” said Henry Sasongko, Project

Director from Jaya Teknik Indonesia.