Industrial MEP & Fire Protection Services
Integrated turnkey solutions from hydraulic engineering, precision BOQ costing, and authorized brand procurement to field hydrotesting and commissioning.
6 Core Solutions by PT Multijaya Teknik Abadi
Engineered to satisfy stringent NFPA, SNI, and local fire authority standards with maximum cost efficiency.

Fire Hydrant System Installation
Kontraktor Instalasi Sistem Fire Hydrant
We provide end-to-end design, fabrication, and certified installation of fire hydrant and automatic fire sprinkler networks. Engineered for rapid emergency response and optimal sustained water pressure, fully compliant with Indonesian SNI regulations and NFPA 14/20 technical standards.
Components & Specifications:
- Main distribution header (Schedule 40 Carbon Steel)
- Outdoor hydrant pillars (Single & Two-Way 2.5" & 4")
- Indoor hydrant cabinets (Type A & Type B Boxes with hose & nozzle)
- Automatic fire sprinkler system with glass bulb heads
- Siamese fire truck connection manifold
Field Execution Scope:
- Shop drawing development & hydraulic calculation reports
- High-pressure pipe cutting, grooving, and coded welding
- Installation of control valves, headers, and branch lines
- Hydrostatic pressure testing at 1.5x working pressure for 2-4 hours
- FAT & commissioning discharge tests with local Fire Authority inspectors

Mechanical Piping & Plumbing Systems
Kontraktor Instalasi Sistem Perpipaan & Plumbing
Industrial piping and sanitary installation engineered with precise flow dynamics, hydrostatic pressure balancing, and proper slope gradients. We integrate conventional steel piping as well as high-performance thermoplastic systems tailored to clean water, chemical, or wastewater transmission.
Components & Specifications:
- Clean water distribution (Booster pump & gravity header systems)
- Drainage, greywater, and blackwater piping installations
- Industrial wastewater and water treatment (WTP/WWTP) networks
- Stack ventilation and air release piping systems
- Water reservoir installations (Roof tanks & ground water reservoirs)
Field Execution Scope:
- Hydraulic load calculations and optimal pipe sizing analysis
- Vertical riser installation and floor distribution manifolds
- Anti-vibration pipe support and seismic hanger fabrication
- System hydrostatic leak tests and potable line disinfection

Ebara Fire & Industrial Pump Supply & Setup
Pengadaan & Pemasangan Pompa Fire Protection Ebara
High-reliability fire pump room integration utilizing authentic Ebara pump equipment. Pump packages are precision skid-mounted, direct-coupled to industrial electric motors and diesel engines, and interfaced with automatic control panels for instantaneous sequential start upon pressure drops.
Components & Specifications:
- Electric main fire pump (End Suction FS Series or Split Case CSA Series)
- Diesel engine emergency backup fire pump (Split Case CN/CSA Series)
- Jockey pressure maintenance pump (EVMS vertical multi-stage)
- Automatic NFPA 20 compliant Star-Delta / Digital control panel
- Suction & discharge headers equipped with flow meters and relief valves
Field Execution Scope:
- Official Ebara unit procurement with factory test certificates
- Pump positioning and laser alignment on vibration inertia concrete bases
- Suction/discharge piping connections with flexible expansion joints
- Electrical control panel wiring and pressure switch automation
- On-site FAT (Factory Acceptance Test) and dynamic performance testing

Asahi AV Industrial Thermoplastic Valve Distribution
Supply Material Valve & Piping Termoplastik Asahi Yukizai
Specialized thermoplastic industrial valve solutions from Asahi Yukizai (ASAHI AV) Japan. Engineered for chemical plants, clean/wastewater treatment facilities (WTP/WWTP), pharmaceutical production, and corrosive cooling loops where metallic valves fail from corrosion.
Components & Specifications:
- Ball valves (True Union Type 21 & Flanged 1/2" to 4")
- Diaphragm valves (Type 14 & Type 72 for abrasive slurry and chemicals)
- Butterfly valves (Type 57 for high-flow header regulation)
- Check valves (Swing Check & Ball Check reverse-flow preventers)
- Resin choices: U-PVC, C-PVC, PP, and PVDF to JIS/ANSI specifications
Field Execution Scope:
- Valve material selection consulting backed by chemical resistance charts
- Direct supply of authentic valves with Certificate of Origin (COO/COM)
- Supply of thermoplastic fittings, flanges, and chemical gaskets
- Field bolt torque guidelines and installation technical supervision

Commercial Cost Estimation & BOQ Calculation
Estimasi Biaya Komersial & Konsultasi RAB
Backed by experienced MEP Commercial Cost Estimators, we provide accurate Bill of Quantities (BOQ) calculations, tender drawing analyses, and value engineering recommendations to optimize project budgets without compromising fire safety regulations or quality codes.
Components & Specifications:
- Granular BOQ breakdown categorized by trade and installation zone
- Unit cost analysis for mechanical equipment (Ebara, Asahi, Piping)
- Value engineering alternatives compliant with SNI and NFPA standards
- Project cashflow forecasting and procurement timeline schedules
Field Execution Scope:
- Detailed review of tender specifications, BOQs, and shop drawings
- Drafting transparent, competitive, and realistic budget proposals
- Alternative material consulting for strategic cost optimization
- Technical consultation and clarification during contractor tendering

Preventive Maintenance & Field Troubleshooting
Pemeliharaan & Perbaikan Sistem
Fire protection infrastructure and mechanical pump stations require scheduled testing and maintenance to guarantee readiness when disasters strike. We provide annual service contracts and rapid emergency troubleshooting for piping networks, pumps, and control valves.
Components & Specifications:
- Weekly, monthly, and quarterly scheduled preventive inspections
- Static and dynamic pressure testing on fire hydrant networks
- Diesel engine starter battery, lubrication, and coolant maintenance
- Panel pressure switch calibration and automatic pump start simulations
- Leaking valve replacement, gasket renewal, and strainer flushing
Field Execution Scope:
- Visual inspection and periodic operational running tests
- Sediment and scale removal in pump rooms and distribution headers
- Electrical panel diagnostics and automation sequence troubleshooting
- Periodic inspection reports and preventive engineering recommendations
5-Stage Project Execution Standard
From preliminary engineering reviews to formal commissioning handover, ensuring transparency, code compliance, and safety.
Consultation & Site Survey
Requirements evaluation, site inspection, and architectural/MEP drawing review alongside your project team.
Engineering & BOQ Estimation
Precise, transparent, and value-engineered Bill of Quantities (BOQ) aligned with your project budget.
Official Equipment Procurement
Direct sourcing of genuine Ebara pump sets, Asahi AV valves, and schedule piping with material traceability certificates.
Installation & Hydrostatic Testing
Certified site welders execute installations followed by 1.5x working pressure hydrostatic testing and FAT commissioning.
Commissioning Handover & Warranty
Formal handover of as-built drawings, manufacturer warranties, staff operational training, and maintenance contracts.