GTCU Model ECU 224 v2.0 Generation
Fit for purpose Automatic Tank Cleaning Solution
Direct pressure Engineering & field operation
System Overview & General Specifications
Physical Enclosure Design
Containerized Footprint: Standard 10 FT maritime CSC configuration.
Overall Dimensions: 2,438 mm x 2,991 mm x 2,591 mm.
Container Tare Weight: 1,960.00 Kgs (inclusive of certified offshore lifting slings).
GTCU Total Operating Weight: +/- 3,500.00 Kgs.
Integrated Storage: Heavy-duty Stainless Steel water tank with a volume capacity of 6.50 m³.
Structural & Logistic Certifications
CSC Certification: Approved for standard international maritime shipping and logistics lanes.
DNV 2-7.1 Compliance: Certified for dynamic offshore lifting rigs and harsh deep-water environments.
LOLER Standards: Fully compliant with offshore lifting operations and lifting equipment regulations.
Structural Security: Reinforced structural sub-base specifically designed to absorb operational hydraulic vibration loads.
Power & Electrical Framework
Global Dual-Frequency Power Matching
European/PSV Vessels/Land Rigs/Domestic Fields: 380/660 V @ 50 Hz base standard frequency.
USA / International Offshore Fields: 460/795 V @ 60 Hz high-output standard frequency.
Strict Operational Tolerances: Engineered to handle a maximum voltage variance of ± 5% and a frequency variance of ± 2% without trip intervention.
ATEX Hazardous Area Certification
Zonal Deployment: Rated exclusively for Zone 1 and Zone 2 Hazardous explosive Oilfield operations.
Gas Classification : II 2GD Ex dB IIB+H2 T5 Gb (Includes Hydrogen gas risks).
Dust Safety Profile: Ex tb IIIC T100°C Db rated path.
Ambient Thermal Bounds: Rated for continuous environmental exposure spanning -20°C to +60°C.
Enclosure Security: System core control panel built to rigid IP66 ingress protection parameters.
Directed-Pressure Washing Pumps Specifications
Twin-configuration direct-pressure vertical 5-stages centrifugal pumps running in-line:
Parameter Component
Pump OEM & Exact Designation
Maximum Kinetic Head Pressure
Nominal Operating Window
Volumetric Flow Rate
Liquid Hydraulics Efficiency Rating
Fluid Thermal Thresholds
Total Combined Dry Mass
Technical Specification Metric & Rating
DP-Pumps / DESMI DPVSF 25/5 B (Flanged NW65 Construction)
111.2 mwc (Delivers up to 10.90 Bar Maximum continuous pressure)
8.0 Bar to 10.0 Bar regulated input pressure range at nozzles
36.00 m³/hr. standard rated capacity displacement at duty point
73.9% efficiency benchmark verified at main duty point (MEI ≥ 0.70)
-20°C baseline up to +140°C maximum structural allowable limits
210 kg net structural weight (includes the pump + the electric motor)
Drive Motor Engineering Data
Electrical Performance
Manufacturer: DM Motors / Euromotori explosion-proof series.
Power Output: 15.0 kW nominal rated output (14.11 kW shaft requirement).
Rated Current (In): 27.8 A running at 380V/ 25.82 A running at 460V.
Inrush Current Multiplier: Ia/In factor of 7.42x spike during direct line starts.
Structural Safeguards
Thermal Protection: Integrated triple-redundant PTC thermistor chain (120°C/140°C limits).
Reinforced Load Bearings: Outfitted with 7309 / 6309 ZZ C3 locked driven-end bearings.
Smooth Shaft Profile: Engineered without a keyway to achieve precise coupling grip and eliminate vibration balance faults.
Speed & Mechanicals
Synchronous Poles: 2-Pole heavy industrial frame layout.
Rotational Velocity: 2,948 rpm at 50Hz grid / 3,538 rpm at 60Hz offshore grid.
Efficiency Rating: IE3 Premium class certified (91.0% to 92.0% efficiency).
Duty Rating: Continuous S1 heavy-duty cycle operations.
Control Panel & Enclosure Hardware
Enclosure Physical Specifications
Cortem EJB-45B Framework: Heavy explosion-proof cast aluminum alloy construction.
Surface Finish Treatments: Unpainted raw internal surfaces; external structural coating in premium RAL7035 light grey.
Main Operational Input: 415 Vac primary power loop, 64 A current capacity limit.
Control/ Dissipation Circuits: 230 Vac control voltage loop; 210 W thermal dissipation structural ceiling.
Internal Control Components
Core Safety Relay Architecture: Siemens active safety monitoring relay loop (3NO+1NC, 85-265 Vac).
Operator Interface: Heavy-duty Cortem standard pushbuttons (1NO/1NC) paired with ultra-bright LED Ba9s status lamps.
Isolator Safety Guards: Padlockable stainless steel 316L ‘OFF’ switch brackets.
Emergency Intervention: Mechanical twist-to-reset emergency stop button, surrounded by a protective shroud.
Internal Cabling: Low-Smoke Zero-Halogen (LSZH) internal wire containment structures with specialized terminal markers.
Auxiliary Equipment: Hoses & Cleaning Heads
High-Pressure Delivery Hoses
Sizing Metric: 2-inch Texas 20 Bar Buna rated Oil resistant fluid transfer lines.
Material Compound: Hard Buna-N oil-resistant industrial internal liner.
Pressure Threshold bounds: 20 Bar maximum continuous working pressure; 30 Bar structural burst testing limit.
Quick Connections: Aluminium male/female rapid action 2” Camlock coupling adapters.
Deployment Lengths: Regularly dispatched in 10 linear meters structural sections.
Specialized ‘Wizzy’ Wash Heads
Model 180 SS Head: Complete Stainless Steel core structure with a triple 3/8″ nozzle layout and quick-disconnect pins.
Model 360 Rotary Unit: Dual-nozzle cluster with a high-torque 655:1 standard internal drive gear ratio.
Sealing & Lubrication: Specialized Viton/Oilite seals built to resist hydrocarbon breakdowns.
Optimal Nozzle Profile: Ø 7 mm diameter jets to balance long length throw with a resonalble ”’punch” power, under a constant flow volume.
Fluid Dynamics & Retention Engineering
Nozzle Size Configuration
2 x Ø 10 mm Nozzles
2 x Ø 9 mm Nozzles
2 x Ø 8 mm Nozzles
2 x Ø 7 mm (Recommended)
Operating Pressure
10 Bar to heads
10 Bar to heads
10 Bar to heads
10 Bar to heads
Volumetric Flow Rate
42.00 m³/hr. (700 L/min)
38.00 m³/hr. (633 L/min)
31.00 m³/hr. (517 L/min)
38.00 m³/hr. (633 L/min)
Settling Retention Time
20 Minutes (Flow limits skip capacity)
22 Minutes
27 Minutes
34 Minutes * (10 minutes above the desemulsifier usual optimal settling rate)
Core Fluid Dynamics Engineering Rules:
Jet Length Throw: Optimized Ø 7 mm nozzle configuration guarantees a hard kinetic scrubbing boundary radius of up to 13-14 meters.
Settling Dynamics: Smaller nozzle layout profiles restrict instant volumetric flow discharge rates, actively extending settling retention times inside the 14 m³ separation containment skips to precipitate out heavy drill solids efficiently.
Pre-Operational Requirements Checklist
System Flush: Verify that all internal mud transfer lines, manifolds, and temporary flow lines are thoroughly clear/ prewashed.
Rig Utility Check: Confirm host facility or PSV Vessel can maintain minimum required air manifold volume, continuous electrical power
limits, and structural footprint deck space clearance.
Bulk Tank Clearing: Ensure all remaining bottom mud volumes or bulk fluid slops have been systematically transferred away.
Rig Communications: Establish a direct, dedicated 2-way radio loop with the rig control room or Vessel command bridge.
HSE / Confined Space Entry: Validate all active Confined Space Entry permits, crew certifications, and chemical-resistant PPE lines.
Client Quality Baseline: Agree upon and sign off on target clean parameters (e.g., standard oil-based mud recovery vs. completion
Brine readiness benchmarks).
Field Rigging Procedure
01
Secure Base Placement
Spot the 10FT housing container on level structural pad.Tie in primary earth ground straps, host grid electrical feeds, and main high-volume air manifolds.
02
Mount Cleaning Heads
Position the ‘Wizzy’ automated wash heads securely onto internal tank ladder structures or specialized top-hatch brackets *(all delivered as part of the GTCU package).
03
Deploy All – Flo AODD
Network
Rig up the primary 3-inch diaphragm pump at tank bottom with a 2-inch suction line *(through the 3’’ to 2’’ adapter), discharging directly into the main waste skip diffuser box.
04
Establish Recovery Loops
Set up 2-inch All-Flo pumps to draw clean water from the main skip back to the GTCU tank, loop sediments out, and transfer separated solids to storage bins.
Live System Operation Workflow
Fluid Charging Phase: Prime the internal storage tank with exactly 6 m³ of fresh drill water; charge the main waste
separation skip to a 50% fill level benchmark.
Loop Balancing Phase: Initialize the manifold air supply to activate recycling diaphragm pumps. Dynamically sync
transfer flows to achieve flat fluid balances.
High-Pressure Pump Startup: Start the electric high-pressure vertical pumps with the main discharge valve closed.Gradually open the valve over time to block line water hammer spikes.
Evacuation Clearing: Energize the 3-inch All-Flo pump at stable air rates, in order to continuously draw effluent water out of the working tank floor.
Chemical Polishing Loop: Once heavy solid fractions are drawn down, introduce a concentrated 1% to 2% chemical wash desemulsifier matrix into the fluid loop to dissolve residual oil skin layers.
Rig-Down & Preventative Maintenance Protocols
Demobilization Sequences
Tank Evacuation: Fully discharge and clear the internal GTCU holding tank.
Closed-Loop Flush: Route all quick-connect transfer hoses into a single continuous loop circuit and flush with clean water.
Air Blowdown: Force compressed high-volume air through the hose loop to evacuate water pockets and prevent the rust/frost crystallization.
Rigid Maintenance Constraints
Cartridge Seals Check: Manually spin the pump shaft prior to engine start to guarantee the mechanical seals have not bound from dehydration film friction.
ATEX Hot-Work Prohibition: Without opening an Electrical Isolation Permit, never open electrical component boxes or loosen metal structural bolts inside a classified hazardous area due to mechanical frictional spark risks.
Joint Re-Greasing: Coat all structural casing joints with Total Multis Complex HV2 specialized grease compound during every maintenance teardown window.
Euromotori ECU 224 Motors v2.0
Vertical Multi-Stage Centrifugal Pump
Flowchart Diagram ECU 224 v2.0
Conclusion
Envirowaste GTC Unit 224 v2.0
Clean and Compact
Everything you need is all in one ECU 224 v2.0 unit by Envirowaste.
Secure and lockable to ensure the equipment inside is safe and unwanted dust or water is unable to enter when doors are closed.
Fitted with a breather, a system diagonally at the top of each unit to improve air circulation for excess heat and humidity.
Compact Transport
Compact and easily transported and positioned at locations (c/w forklift pockets).
Equipped with own lifting slings it makes it easy to load onboard offshore platforms, lorries and trailers, which makes movement easy and stress free.
Heavy-duty and robust for all operations on land and offshore
Safety Compliant
Compliant with explosion proof regulations.
Improves the safety of all your workers as they no longer must be inside the tank during the cleaning operation (CSE time as close to Zero).
Small footprint for site operations to secure during the cleaning process.
Electrical Control panel designed with safety in mind for easy access and use by the operators