MEP Engineering Services · Oman

Plumbing Works

Water supply, drainage and sanitary systems planned for dependable everyday performance.

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Engineered for Oman

A complete, coordinated approach to plumbing works.

PROOM supports clients from initial consultation and site review through engineering, supply, installation, integration, testing, commissioning and ongoing technical support. The final scope is defined around verified project requirements and site conditions.

01Coordinated building services

02Reliable operational performance

03Maintainable system design

04Upgrade and retrofit flexibility

Key capabilities

System scope

01Water supply
02Drainage
03Sanitary systems
04Pumps
05Piping
06Plumbing fixtures
07Maintenance
08Retrofit works

Typical applications

Designed around the facility.

Applications are assessed according to occupancy, operating risk, performance objectives, existing infrastructure and required interfaces.

Government facilities↗

Commercial buildings↗

Hospitality↗

Healthcare↗

Industrial facilities↗

Residential developments↗

System integration

Connected with the wider building environment.

Where required, PROOM coordinates interfaces with fire alarm, BMS, CCTV, access control, public address, HVAC, parking, hotel systems, IoT platforms and central monitoring. Final integration depends on the project design and supported system interfaces.

Delivery process

From scope to support.

01
Consultation & site survey
We understand the facility, risks, scope and operating requirements.
02
Engineering & design
We develop coordinated system concepts and technical specifications.
03
Proposal & planning
We align scope, resources, sequencing and commercial requirements.
04
Supply & installation
Our teams deliver and coordinate equipment and site works.
05
Testing & commissioning
We verify operation, interfaces and documented system performance.
06
Maintenance & support
We help protect reliability through planned and responsive support.

Maintenance & FAQs

Supporting performance beyond installation.

Can PROOM assess an existing system?+

Yes. PROOM can review available documentation, inspect site conditions and identify practical maintenance, integration, upgrade or retrofit requirements.

Can this system integrate with other building services?+

Integration is planned according to project needs, compatible interfaces and the approved cause-and-effect or control strategy.

Is maintenance support available?+

PROOM provides preventive and corrective maintenance, testing, inspections, system health checks, upgrades and Annual Maintenance Contract options.

LIFECO Verified Systems

LIFECO Engineered Systems & Hardware for Plumbing Works

Explore verified technical specifications, pressure ratings, and system configurations. Technical cut-sheets, BOQ estimates, and consultant submittal dossiers are available on request.

Working Pressure up to 500 PSI · Ductile Iron

UL ListedFM Approved

MEP Piping & Fire Protection Infrastructure

LIFECO UL/FM Grooved Couplings, Branch Outlets & Mechanical Fittings (up to 500 PSI)

Model: LIFECO Grooved System (Style 1GS / 1X / 90 / 120 / 130)

LIFECO Grooved Couplings and Fittings provide a reliable, flame-free mechanical method of joining steel piping for MEP engineering, HVAC, water distribution, and fire suppression systems. Formed directly on the external surface of the pipe, preserving interior hydraulic flow while enabling rapid installation, angular deflection, and expansion accommodation.

Working Pressure	Up to 500 PSI (34.5 Bar) on standard-wall steel pipe
Available Sizes	DN25 to DN300 (1" through 12" nominal diameter)
Material Construction	Ductile Iron conforming to ASTM A536 Grade 65-45-12
Gasket Compounds	EPDM (Grade E, -34°C to +110°C) for water/fire services; Nitrile (Grade T) for hydrocarbons
Certification & Standards	UL Listed, FM Approved, ANSI/AWWA C606 grooved specifications
Range Selection	Rigid couplings (Style 1GS), Flexible couplings (Style 1X), Elbows (90°/45°), Tees, Flange Adapters, Reducers & Caps

Table 1: Rigid & Flexible Grooved Couplings – Allowable Pipe End Separation (DN25 to DN100 / 1" to 4")

Nominal Dia. (DN / Inches)	Actual O.D. (mm / Inches)	Style 1GS Rigid Separation (mm / in)	Style 1X Flexible Separation (mm / in)
DN25 (1")	33.7 mm / 1.327"	2.3 mm / 0.091"	2.2 mm / 0.087"
DN32 (1-1/4")	42.4 mm / 1.660"	2.3 mm / 0.091"	2.2 mm / 0.087"
DN40 (1-1/2")	48.3 mm / 1.900"	2.3 mm / 0.091"	2.2 mm / 0.087"
DN50 (2")	60.3 mm / 2.375"	2.3 mm / 0.091"	2.2 mm / 0.087"
DN65 (2-1/2")	73.0 mm / 2.875"	2.3 mm / 0.091"	2.7 mm / 0.106"
DN65 (2-1/2" O.D.)	76.1 mm / 3.000"	2.3 mm / 0.091"	2.7 mm / 0.106"
DN80 (3")	88.9 mm / 3.500"	2.7 mm / 0.106"	2.7 mm / 0.106"
DN100 (4" JIS)	108.0 mm / 4.250"	2.7 mm / 0.106"	3.3 mm / 0.130"
DN100 (4" ANSI)	114.3 mm / 4.500"	2.7 mm / 0.106"	3.3 mm / 0.130"

Table 2: Large Diameter Grooved Couplings – Allowable Pipe End Separation (DN125 to DN300 / 5" to 12")

Nominal Dia. (DN / Inches)	Actual O.D. (mm / Inches)	Style 1GS Rigid Separation (mm / in)	Style 1X Flexible Separation (mm / in)
DN125 (5" JIS)	133.0 mm / 5.250"	2.7 mm / 0.106"	3.3 mm / 0.130"
DN125 (5" BS)	139.7 mm / 5.500"	2.7 mm / 0.106"	3.3 mm / 0.130"
DN125 (5" ANSI)	141.3 mm / 5.563"	2.7 mm / 0.106"	3.3 mm / 0.130"
DN150 (6" JIS)	159.0 mm / 6.250"	2.7 mm / 0.106"	3.3 mm / 0.130"
DN150 (6" BS)	165.1 mm / 6.500"	2.7 mm / 0.106"	3.3 mm / 0.130"
DN150 (6" ANSI)	168.3 mm / 6.625"	2.7 mm / 0.106"	3.3 mm / 0.130"
DN200 (8")	219.1 mm / 8.625"	4.9 mm / 0.193"	4.9 mm / 0.193"
DN250 (10")	273.0 mm / 10.750"	4.9 mm / 0.193"	4.9 mm / 0.193"
DN300 (12")	323.9 mm / 12.750"	4.9 mm / 0.193"	4.9 mm / 0.193"

Table 3: Grooved Fittings Equivalent Pipe Lengths & Flow Characteristics (90° Elbow, 45° Elbow, Equal Tee)

Nominal Size (DN / Inches)	Actual O.D. (mm)	90° Elbow Equiv. (m / ft)	45° Elbow Equiv. (m / ft)	Tee Branch Flow (m / ft)	Tee Run Flow (m / ft)
DN25 (1")	33.7 mm	0.5 m / 1.6 ft	0.2 m / 0.7 ft	1.3 m / 4.3 ft	0.5 m / 1.6 ft
DN32 (1-1/4")	42.4 mm	0.8 m / 2.6 ft	0.4 m / 1.3 ft	1.8 m / 5.9 ft	0.8 m / 2.6 ft
DN40 (1-1/2")	48.3 mm	0.9 m / 3.0 ft	0.4 m / 1.3 ft	2.0 m / 6.6 ft	0.9 m / 3.0 ft
DN50 (2")	60.3 mm	1.1 m / 3.6 ft	0.5 m / 1.6 ft	2.6 m / 8.5 ft	1.1 m / 3.6 ft
DN65 (2-1/2")	76.1 mm	1.3 m / 4.3 ft	0.7 m / 2.3 ft	3.3 m / 10.8 ft	1.3 m / 4.3 ft
DN80 (3")	88.9 mm	1.5 m / 4.9 ft	0.8 m / 2.6 ft	4.0 m / 13.1 ft	1.5 m / 4.9 ft
DN100 (4")	114.3 mm	2.1 m / 6.9 ft	1.0 m / 3.3 ft	4.9 m / 16.1 ft	2.1 m / 6.9 ft
DN125 (5")	141.3 mm	2.6 m / 8.5 ft	1.3 m / 4.3 ft	6.4 m / 21.0 ft	2.6 m / 8.5 ft
DN150 (6")	168.3 mm	3.0 m / 9.8 ft	1.5 m / 4.9 ft	7.6 m / 24.9 ft	3.0 m / 9.8 ft
DN200 (8")	219.1 mm	4.0 m / 13.1 ft	2.0 m / 6.6 ft	10.1 m / 33.1 ft	4.0 m / 13.1 ft
DN250 (10")	273.0 mm	5.2 m / 17.1 ft	2.5 m / 8.2 ft	12.5 m / 41.0 ft	5.2 m / 17.1 ft
DN300 (12")	323.9 mm	6.1 m / 20.0 ft	3.0 m / 9.8 ft	15.2 m / 49.9 ft	6.1 m / 20.0 ft

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Schedule 10 & 40 · Up to 300 PSI · UL & FM

UL ListedFM Approved

Select pipe coating / finish to preview:

Fire Protection & MEP Piping Infrastructure

LIFECO UL Listed & FM Approved Steel Pipes for Fire Protection & MEP Systems

Model: LIFECO Schedule 10 & Schedule 40 Steel Pipes

Heavy-duty carbon steel piping manufactured strictly to ASTM A53 (Schedule 40, rated 300 PSI) and ASTM A795 (Schedule 10, rated 175 PSI) for fire fighting risers, sprinkler distribution, HVAC chilled water, and industrial plumbing. Available with roll-grooved, plain, or threaded ends in a full spectrum of factory protective coatings.

Schedules & Standards	Schedule 40 (ASTM A53) & Schedule 10 (ASTM A795)
Rated Working Pressure	Schedule 40: 300 PSI (21 Bar); Schedule 10: 175 PSI (12 Bar)
Hydrostatic Factory Test	100% mill pressure tested from 700 PSI up to 2500 PSI
Diameter Range	1/2" to 12" (DN15 to DN300 NPS)
Surface Finishes	Painted Red, Hot-Dip Galvanized, Epoxy Coated, Galvanized-Epoxy, Plastic Lined, Black Steel
End Connections	Roll Grooved (AWWA C606), Plain Beveled Ends, or Threaded (NPT/BSPT)

Schedule 40 (ASTM A53) - Seamless (Type S) Steel Pipes (Rated 300 PSI / 21 Bar)

NPS (Inches)	DN (mm)	OD (mm)	Wall Thickness (mm)	Weight (kg/m)	Test Pressure (PSI)
1/2"	15	21.3 mm	2.77 mm	1.27 kg/m	700 PSI
3/4"	20	26.7 mm	2.87 mm	1.69 kg/m	700 PSI
1"	25	33.4 mm	3.38 mm	2.50 kg/m	700 PSI
1-1/4"	32	42.2 mm	3.56 mm	3.39 kg/m	1300 PSI
1-1/2"	40	48.3 mm	3.68 mm	4.05 kg/m	1300 PSI
2"	50	60.3 mm	3.91 mm	5.44 kg/m	2500 PSI
2-1/2"	65	73.0 mm	5.16 mm	8.63 kg/m	2500 PSI
3"	80	88.9 mm	5.49 mm	11.29 kg/m	2500 PSI
4"	100	114.3 mm	6.02 mm	16.07 kg/m	2210 PSI
5"	125	141.3 mm	6.55 mm	21.77 kg/m	1950 PSI
6"	150	168.3 mm	7.11 mm	28.26 kg/m	1780 PSI
8"	200	219.1 mm	8.18 mm	42.55 kg/m	1570 PSI
10"	250	273.0 mm	9.27 mm	60.29 kg/m	1430 PSI
12"	300	323.8 mm	10.31 mm	79.70 kg/m	1340 PSI

Schedule 40 (ASTM A53) - ERW (Type E) Electric Resistance Welded Steel Pipes (Rated 300 PSI / 21 Bar)

NPS (Inches)	DN (mm)	OD (mm)	Wall Thickness (mm)	Weight (kg/m)	Test Pressure (PSI)
1/2"	15	21.3 mm	2.77 mm	1.27 kg/m	700 PSI
3/4"	20	26.7 mm	2.87 mm	1.69 kg/m	700 PSI
1"	25	33.4 mm	3.38 mm	2.50 kg/m	700 PSI
1-1/4"	32	42.2 mm	3.56 mm	3.39 kg/m	1300 PSI
1-1/2"	40	48.3 mm	3.68 mm	4.05 kg/m	1300 PSI
2"	50	60.3 mm	3.91 mm	5.44 kg/m	2500 PSI
2-1/2"	65	73.0 mm	5.16 mm	8.63 kg/m	2500 PSI
3"	80	88.9 mm	5.49 mm	11.29 kg/m	2500 PSI
4"	100	114.3 mm	6.02 mm	16.07 kg/m	2210 PSI
5"	125	141.3 mm	6.55 mm	21.77 kg/m	1950 PSI
6"	150	168.3 mm	7.11 mm	28.26 kg/m	1780 PSI
8"	200	219.1 mm	8.18 mm	42.55 kg/m	1570 PSI

Schedule 10 (ASTM A795) - ERW (Type E) Light-Wall Fire Sprinkler Steel Pipes (Rated 175 PSI / 12 Bar)

NPS (Inches)	DN (mm)	OD (mm)	Wall Thickness (mm)	Weight (kg/m)	Test Pressure (PSI)
3/4"	20	26.7 mm	2.11 mm	1.28 kg/m	700 PSI
1"	25	33.4 mm	2.77 mm	2.09 kg/m	700 PSI
1-1/4"	32	42.2 mm	2.77 mm	2.69 kg/m	1000 PSI
1-1/2"	40	48.3 mm	2.77 mm	3.11 kg/m	1000 PSI
2"	50	60.3 mm	2.77 mm	3.93 kg/m	1000 PSI
2-1/2"	65	73.0 mm	3.05 mm	5.26 kg/m	1000 PSI
3"	80	88.9 mm	3.05 mm	6.46 kg/m	1200 PSI
4"	100	114.3 mm	3.05 mm	8.37 kg/m	1200 PSI
5"	125	141.3 mm	3.40 mm	11.58 kg/m	1200 PSI
6"	150	168.3 mm	3.40 mm	13.85 kg/m	1000 PSI
8"	200	219.1 mm	4.78 mm	25.26 kg/m	800 PSI

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Engineering support

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