Our Services
From a single skid to a full project, Warisan Moma combines engineering, fabrication, site services and equipment supply under one team.
Process skids and modular packages
We design and supply process skid systems and modular process equipment for clients in Malaysia and abroad. Each package is built around the client’s specification, operating conditions and site, whether that is a single utility skid or a complete treatment train. Packages are customised to client specification, designed to API, ASME and ISO requirements, skid-mounted and pre-commissioned, and suited to onshore, offshore and FPSO use.
Gas processing and treatment
Fuel gas conditioning skid
Clean, dry fuel gas at the right pressure and temperature for turbines, engines, generators and burners.
ESD valve → KO drum → filter coalescer → heater → pressure control and metering
Duty/standby filters · superheat above dew point · single-lift skid
Gas filtration and separation
Removes solids, liquids and aerosols to protect compressors, turbines and metering downstream.
Wet gas inlet → KO separator → filter coalescer → auto drain → clean gas
Specified micron rating · DP monitoring · quick-opening closures
Sour / acid gas treatment
Removes H₂S and CO₂ to meet sales gas, pipeline and safety specifications.
Sour gas → inlet separator → amine contactor / membrane → regeneration → sweet gas
Amine or membrane to suit feed · scalable multi-train design
Mercury removal unit (MRU)
Removes mercury from gas and liquid streams to protect equipment and product quality.
Feed → inlet filter → adsorbent beds → dust filter → treated outlet
Outlet below 0.01 µg/Nm³ · lead-lag beds · low pressure drop
Sulphur recovery unit (SRU)
Claus technology converting H₂S in acid gas into liquid sulphur at above 99.9% purity.
Acid gas → thermal reactor → waste heat and condenser → catalytic stages → sulphur
Recovery above 99.9% · heat integration · lower SOx emissions
MEG and TEG regeneration
Regenerates rich glycol for continuous, reliable dehydration and hydrate inhibition.
Rich glycol → flash drum → filters → reboiler and still column → lean glycol pumps
Lean glycol above 99 wt% · salt management option for MEG
Water and environment solutions
Liquids handling and treatment packages that bring product on spec, keep discharges within limits and recover value that would otherwise go to flare or waste.
Condensate stabilization skid
Strips C1–C4 light ends so condensate meets RVP / TVP for safe storage, shipping and sale.
Feed/product exchanger → stabilizer column → reboiler → product cooler
Automatic column control · feed/product heat recovery · off-gas to fuel or flare
Condensate polishing skid
Removes mercury, H₂S, organics, free water and solids before export or refinery feed.
Pre-filter → coalescer / water removal → adsorbent beds → polished outlet
Duty/standby vessels · replaceable cartridge and adsorbent media · sampling points
Produced water treatment skid
Multi-stage de-oiling and polishing for overboard discharge, reinjection or onshore disposal.
Hydrocyclone / skim tank → induced gas flotation → media / GAC polishing → outlet
Oil-in-water to discharge limits · auto backwash · recovered oil back to process
RO water maker (SWRO / BWRO)
Potable and utility fresh water from seawater or brackish sources, for platforms, vessels and remote sites.
Intake → multimedia filter → cartridge filter → HP pump and membranes → post-treatment
Energy recovery device option · automatic flushing and CIP · plug-and-play frame
Blowdown recovery skid
Captures hydrocarbons from compressor blowdown and vents instead of sending them to flare.
Blowdown header → KO drum → recovery compressor / pump → return to process
Automatic start on blowdown · pressure control · integration with existing flare system
Utilities and control
The supporting systems a plant cannot run without, built with redundancy where it matters so one failed component never takes production down.
Instrument air skid
Clean, dry air for control valves, actuators and instruments, plus plant and utility air.
Compressors → air receiver → pre-filter → desiccant dryer → after-filter → IA header
Oil-free or oil-injected compressors · duty/standby with auto changeover · dew point monitoring
Nitrogen generation skid
On-site nitrogen for tank blanketing, purging, inerting and seal gas, generated from compressed air.
Compressed air → filtration and drying → PSA / membrane → N₂ buffer vessel → header
Purity to process requirement · online O₂ analyser · compact skid
Chemical injection skid
Accurate dosing of corrosion, scale and hydrate inhibitors, biocide and demulsifier.
Storage tank → suction strainer → metering pumps → calibration pot → injection points
Multiple streams · duty/standby pumps · electric or pneumatic drive · bunded skid
Wellhead control panel
Hydraulic control of SSV and SCSSV with integrated shutdown, onshore or offshore.
Reservoir → pumps and accumulators → PLC / pneumatic logic → SSV / SCSSV → ESD loop
HP / HT capable · multi-well · fusible plug loop · local and SCADA monitoring
Controls
PLC or relay logic, local HMI, hardwired or Modbus / Profibus link to plant DCS.
Hazardous area
Ex-rated instruments and panels to the site area classification (IECEx / ATEX).
Materials
Carbon, stainless or duplex selected for fluid, sour service and marine exposure.
What we need to size a package: fluid composition and flow (minimum, normal, maximum), operating pressure and temperature, product specification, available utilities, area classification and design codes.
From enquiry to handover
- Enquiry Process data, site and code requirements
- Proposal Technical sizing, deviations, firm price
- Design P&ID, GA, datasheets for approval
- Fabrication Under approved ITP and QA/QC
- FAT and dispatch Witnessed tests, packing, shipping
- Site support Installation, SAT, start-up, training
Standard scope of supply
- Process design and equipment sizing
- Vessels, pumps, valves and piping on a single skid
- Instruments, local panel and control logic
- Skid structure with lifting lugs and drip tray
- Surface preparation and painting to spec
- Commissioning spares
Documentation and testing
- P&ID, GA, datasheets, cause and effect
- Calculations: vessel, structural, lifting
- ITP, WPS / PQR, NDT and material certificates
- Hydrotest and functional FAT
- Manufacturer’s Data Record (MDR)
- Operation and maintenance manual
Supply only
Tested skid delivered to your yard or site, ready to install.
Supply and commission
Adds installation supervision, SAT, start-up and operator training.
Turnkey
Tie-ins, civil, E&I and handover under one EPCC contract.
Typical commercial terms
- Price basis: Ex-works, FOB or delivered to site
- Delivery: [X–X] weeks from PO, per package
- Payment: Milestone-based against deliverables
- Warranty: [X] months from commissioning
- Spares: Commissioning included; 2-year operating quoted
- After-sales: Service visits, media and membrane change-out
Project and EPCC delivery
Engineering across the whole project lifecycle, from concept and FEED through detailed engineering, procurement, construction, commissioning and operational support. One point of responsibility, onshore and offshore, brownfield and greenfield.
- Concept and FEED Feasibility, concept selection, cost estimate
- Detailed engineering Multi-discipline design, IFC deliverables
- Procurement Sourcing, expediting, inspection
- Construction Fabrication, installation, site supervision
- Commissioning Pre-comm, start-up, handover
- Operational support Maintenance, troubleshooting, optimisation
Five disciplines, one team
- Process. PFDs, P&IDs, simulation, HAZOP support.
- Mechanical. Equipment, piping design, stress analysis.
- Electrical. Power distribution, hazardous area design.
- Instrument and control. Control systems, ESD, fire and gas.
- Civil and structural. Skid structures, foundations, steelwork.
Where we work
- Upstream oil and gas. Offshore platforms, FPSOs, onshore production, wellhead and manifolds.
- Midstream and gas processing. Treatment plants, pipelines, terminals, compression and metering.
- Downstream and petrochemical. Refineries, chemical plants, tank farms and product storage.
- Power, utilities and transition. Power and cogeneration, water treatment, flare and carbon capture.
HSE first built into design, construction and operations. Quality assured with inspection, testing and records at every stage. Schedule and cost managed through disciplined planning and progress reporting. Client-focused, with engineers working as an extension of yours.
Industrial services
Multi-discipline crews and equipment under one contract, planned around your production targets and restart date.
Plant maintenance and turnaround
Preventive, corrective and shutdown maintenance for process plants and utilities. Static equipment (vessels, exchangers, columns, tanks), rotating equipment (pumps, compressors, fans) and piping and valves: open, clean, inspect, repair, box-up.
Structural fabrication and erection
Carbon, stainless and duplex steel: structural steelwork, platforms and walkways, pipe racks and supports, skid bases, and site erection with lifting, alignment and grouting. Qualified welding and full material and weld traceability.
Mechanical and civil works
Equipment installation and alignment, piping fabrication, tie-ins and hydrotest, foundations, roads and drainage, buildings and facility maintenance, and brownfield modifications in live plants.
How we deliver
- Scope and walkdown
- Planning
- Mobilisation
- Execution under PTW
- Inspection and test
- Handover
Engagement models
- Lump-sum. Fixed price for a defined scope and schedule.
- Schedule of rates. Unit rates for manpower, equipment, materials.
- Term contract. Multi-year framework with agreed rates and KPIs.
- Call-out. Rapid response for breakdowns and urgent work.
Specialist services
Blasting, painting and coatings
Surface preparation and protective coatings for structures, piping, tanks and equipment, applied and inspected to spec to control corrosion and extend asset life.
- Abrasive blasting and UHP hydroblasting
- Epoxy, PU, zinc-rich multi-coat systems
- Tank and vessel linings, passive fire protection
- Profile, DFT, adhesion and holiday testing
Industrial cleaning
Tank, equipment and process system cleaning by hydrojetting, vacuum and chemical methods, carried out safely in confined spaces with waste handled responsibly.
- Tank sludge removal
- Heat exchanger tube bundle and shell-side
- Vessel, column, drains and sumps
- Descaling, degreasing, pipeline pickling
3D laser scanning and digital engineering
Millimetre-level scans of plants, structures and equipment, turned into point clouds, 3D models and as-built drawings that cut site revisits, clashes and rework.
- Terrestrial scanning and registration
- Intelligent 3D models of piping and steel
- As-built P&ID, GA and isometrics
- Clash detection, tank ovality and verticality
Skilled manpower and equipment
Skilled and general manpower with equipment support, mobilised quickly with safety training and competency records already in place.
- Fitters, welders, riggers, electricians
- Supervisors, HSE officers, QA/QC
- Lifting, welding and access equipment
- Transport, accommodation, onboarding
Shutdowns, term contracts, offshore campaigns or emergency call-outs. Short and long term.
Valves, actuation and supply
Warisan Moma serves general industry, oil and gas, power and energy, and aviation with engineered products, backed by close relationships with principals, manufacturers and distributors.
Valves
| Valve type | Rating and size range |
|---|---|
| Floating ball valve | 150LB–300LB: 1/2″–12″ (FB/RB) 600LB: 1/2″–6″ (FB/RB) 900LB: 1/2″–3″ (FB/RB) 1500LB: 1/2″–3″ (FB/RB) 2500LB: 1/2″–2″ (FB/RB) |
| Bolted side entry ball valve | 150LB–600LB: 2″–60″ (FB/RB) 900LB: 2″–48″ (FB/RB) 1500LB: 2″–24″ (FB/RB) 2500LB: 2″–16″ (FB/RB) |
| Top entry ball valve | 150LB–600LB: 2″–60″ (FB/RB) 900LB: 2″–36″ (FB/RB) 1500LB: 2″–24″ (FB/RB) 2500LB: 2″–12″ (FB/RB) |
| Fully welded ball valve | 150LB–600LB: 2″–56″ (FB/RB) 900LB: 2″–48″ (FB/RB) 1500LB: 2″–24″ (FB/RB) |
| Orbit ball valve (rising stem) | 150LB–600LB: 1/2″–36″ (FB/RB) 900LB: 1/2″–20″ (FB/RB) |
| Three way ball valve | 150LB–300LB: 1/2″–12″ (FB/RB) |
| Bolted bonnet gate valve | 150LB: 1 1/2″–48″ 300LB: 1 1/2″–48″ 600LB: 2″–42″ 900LB–1500LB: 2″–24″ |
| Pressure seal gate valve | 900LB–2500LB: 2″–24″ |
| Forged steel gate valve | 150LB–1500LB: 1/2″–2″ |
| Through conduit gate valve | 150LB–400LB: 1″–48″ 600LB: 1″–40″ 900LB: 1″–28″ 1500LB–2500LB: 2 1/2″–22″ 3000LB–3500LB: 3″–18″ |
| Swing check valve (bolted bonnet) | 150LB–300LB: 1 1/2″–60″ 600LB: 2″–56″ 900LB: 2″–48″ 1500LB: 2″–24″ 2500LB: 2″–12″ |
| Swing check valve (pressure seal) | 900LB–1500LB: 2″–16″ 2500LB: 2″–12″ |
| Swing / piston / Y-type check valve (forged steel) | 800LB–2500LB: 1/2″–2″ |
| Dual plate check valve | 150LB–300LB: 2″–48″ 600LB–900LB: 2″–24″ 1500LB–2500LB: 2″–16″ |
| Wafer lift check valve | 150LB–900LB: 1/2″–8″ |
| Globe valve | 150LB–300LB: 1/2″–24″ 600LB–900LB: 2″–10″ |
| Pressure seal globe valve | 900LB–1500LB: 2″–10″ 2500LB: 2″–8″ |
| Forged steel globe valve | 150LB–2500LB: 3/8″–2″ |
| Butterfly valve | PN0.6MPa: DN80–DN4500 PN1.0MPa–PN1.6MPa: DN80–DN4500 PN2.5MPa: DN80–DN1400 PN4.0MPa–PN10MPa: DN80–DN600 |
Also supplied: cryogenic, subsea, control, choke, slurry, safety and plug valves.
Actuators and automation
- Pneumatic, electric, hydraulic and gas-over-oil actuators
- Valve automation and control systems actuators
- System integration for shutdown, on-off and blowdown valves
- Actuated valve assembly, repair and servicing
Drones
- For asset inspection (onshore and offshore)
- For leak detection
- For cargo delivery
Aviation and airline industry
- Supply of MRO, spare parts and accessories for aircraft
See examples of supply work on the Projects and Experience page.
Tell us about your project
Send us your requirements and our engineers will respond with the right next step.