We supply complete Koomey units and BOP control solutions (accumulator, HPU, remote panels, hoses & fittings). Drawings and FAT documents are available on request—share working pressure and control requirements for configuration and pricing.
Koomey Unit Executive Summary for Procurement Managers
A BOP Control Unit, universally known as a Koomey Unit, is a critical hydraulic system designed to operate Blowout Preventer (BOP) stacks. For effective procurement, buyers should verify compliance with API Spec 16D, confirm accumulator volume against BOP stack closing requirements, and prioritize spare-part interchangeability to minimize non-productive time (NPT). Key components include accumulator bottles, triplex pumps, and air-operated pumps.
Please provide the product specifications you require, and we will provide you with a complete design solution.
Direct Sourcing Desk Email: [info@rigrs.com]
Full Technical Component Database: [rigrs.com]
Enterprise Procurement Hotline: [+86 18615995257]
OEM Koomey Unit Parts & Replacement Components
We stock and supply a comprehensive range of fully interchangeable replacement parts for standard BOP accumulator units to eliminate your rig non-productive time (NPT):
Accumulator Bladders & Bottles: 11 Gallon / 15 Gallon cylindrical accumulator bottles rated at 3,000 psi and 6,000 psi.
Pressure Switches & Transducers: High-precision, explosion-proof sensors for automatic pump start/stop control.
Nitrogen Gas Precharge Tools: Complete N2 charging manifolds and gauge assemblies compliant with drilling safety standards.
BOP Control Unit Parts are essential components that enable Blowout Preventers (BOPs) to operate effectively under high-pressure and challenging well conditions. When assembled into a complete unit, these components supply hydraulic power and directional fluid control to the BOP system, supporting well-control integrity and operational efficiency.
In oilfield drilling, an Inside BOP Control Unit is vital for well control and kick prevention in offshore, deepwater, and land drilling environments. These control units include several critical parts—each contributing to the system’s overall functionality.
For a procurement specialist. Whether you are sourcing a complete system or Koomey unit parts, the technical benchmark remains the same: Reliability under extreme pressure.
API 16D Koomey Unit Engineering Configurations
| Standard Station Count | Accumulator Bottles (11 Gal) | Primary Power (Voltage) | Secondary Power (Pneumatic) | Application Profile |
| 2-Station Unit | 4 to 6 Bottles | 220V/380V/460V Ex-proof | 100-125 psi Air Supply | Workover Rigs & Shallow Wells |
| 4-Station Unit | 8 to 12 Bottles | Custom 3-Phase Industrial | Dual Air Pump Backup | Medium Depth Onshore Drilling |
| 6-Station Unit | 16 to 24 Bottles | Global Rig Power Adaptive | Multi-Pneumatic Booster | Heavy Duty Land Rigs & Jackups |
| 8 to 12 Stations | 32+ Bottles Custom | Dual Triplex Pump Systems | High-Flow Air System | Ultra-Deep Wells & High-Pressure BOPs |
Common BOP Control Unit Parts
Below is an in-depth look at the BOP Control Unit parts, including Koomey Unit Parts, commonly used in drilling operations.
1. Hydraulic Power Pack (Pump System)
Function:The hydraulic power pack is the source of hydraulic pressure that operates the BOP control system. It converts mechanical power into hydraulic energy for valve control, accumulator charge, and pressure regulation.
Key Technical Specifications:
Pressure Capacity: Typically 5,000–15,000 psi
Flow Rate: 40–100 GPM (gallons per minute)
Motor: AC or DC motors depending on the application (typically 15–50 hp)
Fluid Type: Mineral oil, synthetic oil, or biodegradable hydraulic fluid
Temperature Range: -20°C to 50°C (-4°F to 122°F)
Application:Used in offshore drilling rigs to provide hydraulic pressure to the BOP.Critical in high-pressure, deepwater and onshore drilling operations.
2. Accumulator Unit (Hydraulic Reservoir)
Function:The accumulator unit stores hydraulic fluid under pressure and releases it when needed, maintaining consistent hydraulic pressure in the control system. It plays a critical role in maintaining the integrity of the BOP and allowing rapid response during kick situations.
Key Technical Specifications:
Pressure Rating: 5,000–15,000 psi
Capacity: Typically between 200–1,000 gallons depending on the system’s size
Accumulator Bottles: Carbon steel, high-strength alloy, or stainless steel
Fluid Type: Hydraulic fluid or water-based fluids
Application:Used in deepwater rigs for BOP control.Provides immediate fluid discharge to close the BOP in an emergency.Ensures continuous operation during rig shutdowns or emergency situations.
3. Control Panel (Operator Interface)
Function:The control panel is the interface where operators can manually or remotely control the BOP system. It provides real-time monitoring and control of all essential parameters such as pressure levels, valve status, and emergency shutdown functions.
Key Technical Specifications:Display: LCD/LED screens showing real-time data
Inputs: Push-button controls, touch screens, or joystick inputs
Pressure Monitoring: Continuous monitoring of hydraulic fluid pressure and valve status
Emergency Shutdown: Configurable alarm and shutdown features
Application:Installed in drilling control rooms for continuous operation.Operated by drilling engineers and rig supervisors to monitor and control the BOP.
4. High-Pressure BOP Control Valves & Manifold Assembly
Function:Control valves manage the flow of hydraulic fluid to the BOP stack. These valves regulate the opening and closing of BOP components, such as rams, shear rams, and pipe rams, depending on pressure and operational conditions.
Key Technical Specifications:
Pressure Capacity: Typically 5,000–15,000 psi
Flow Rate: 10–80 GPM
Material: High-strength alloy or stainless steel for corrosion resistance
Actuation Type: Manual or hydraulic-actuated valves for faster response
Size: Available in 2”–6” bore sizes depending on the application
Application:Used in offshore and land drilling rigs for blowout prevention during kick conditions.Installed on the BOP stack to close the wellbore and prevent uncontrolled flow.
5. Air & Electric Driven Hydraulic Pump Units (HPU)
Our hydraulic power unit (HPU) module is designed for redundant fail-safe operations under extreme oilfield environments:
Electric Triplex Pumps: Driven by explosion-proof motors (Class I Division 1 / ATEX Zone 1 standard) for rapid system pressurization.
Air-Operated Hydraulic Pumps: High-ratio (e.g., 60:1) pneumatic pumps acting as a secondary power source when electrical power is compromised on the rig floor.
Fluid Reservoirs: Heavy-plate stainless steel or coated carbon steel tanks with high-capacity return strainers and oil level site gauges.
Function:The Koomey Unit provides hydraulic power to the BOP control system. It includes several key components, including the hydraulic pump, valves, and filters, ensuring proper hydraulic pressure for BOP activation.
Key Technical Specifications:
Pressure Rating: Up to 15,000 psi
Flow Rate: Typically 40–100 GPM
Pump Type: Triplex or duplex hydraulic pumps
Power Supply: Electric or diesel engine-driven pumps
Weight: 2,000–10,000 kg (depending on size and power requirements)
Application:Installed on offshore rigs, onshore rigs, and workover rigs.Provides hydraulic power to activate and close BOPs.
6. Filters & Valves
Function:Hydraulic filters prevent contamination of the fluid used in the BOP control system. Pressure relief valves help maintain operational limits within safe parameters.
Key Technical Specifications:Filter Capacity: Filters designed to handle high-flow hydraulic fluid with filtration levels from 10 microns to 25 microns.Pressure Relief Valves: Rated for pressures from 5,000 psi to 15,000 psi
Application:Protects hydraulic system from contamination.Ensures clean fluid flow to BOP and Koomey units.Protects system from over-pressurization during operation.
Strategic Sourcing: Key Criteria for a BOP Control Unit
When evaluating a Request for Quote (RFQ), An abnormally low purchase price can indicate compromised material quality, testing, or system redundancy. Focus on these three engineering pillars to ensure long-term value:
1 API Spec 16D Compliance
API 16D is the “gold standard” for the design, manufacture, and testing of control systems. A certified unit ensures that the hydraulic response time meets safety regulations—typically closing an annular preventer within 30 to 45 seconds.
2 Accumulator Capacity & Redundancy
The system must store enough hydraulic energy to close all BOP functions even during a total power failure.
The “Dead-Man” Standard: Procurement should verify that the accumulator volume follows the “Closing Ratio” of the specific BOP stack.
Pump Redundancy: Ensure the unit features both Electric Triplex Pumps (primary) and Air-Operated Pumps (secondary) to satisfy redundancy requirements.
3 Environmental Adaptability
Onshore: Focus on portability and footprint.
Offshore: Demand stainless steel piping, explosion-proof components, and DNV/ABS certification for maritime safety.
Technical Comparison: Standard vs. High-Spec Systems
| Feature | Standard Onshore Unit | High-Spec Offshore/HPHT |
| Design Standard | API Spec 16D | API 16D + DNV/ABS |
| Working Pressure | $3,000\text{ psi}$ ($21\text{ MPa}$) | $5,000\text{ psi}$ ($34.5\text{ MPa}$) |
| Casing Material | Carbon Steel | 316L Stainless Steel |
| Control Logic | Manual Hydraulic | Electro-Hydraulic with PLC |
| Nitrogen Precharge | Manual Monitoring | Integrated Digital Sensors |
Let RIGRS solve your procurement problems
Q: Are third-party Koomey parts safe to use?
A: Yes, provided they are manufactured to API 16D standards. High-quality aftermarket parts (like those from RIGRS) offer the same metallurgy and tolerances as OEMs but typically feature 30% shorter lead times and more competitive pricing.
Q: How do I lower the Total Cost of Ownership (TCO)?
A: Transition from “Break-Fix” to “Predictive Maintenance.” Procuring units with Integrated Smart Monitoring allows your crew to detect nitrogen leaks or pump efficiency drops before they lead to a catastrophic failure.
Q: What about H2S Service environments?
A: For sour gas operations, all pressure-containing parts must meet NACE MR0175/ISO 15156 standards to prevent hydrogen-induced cracking.
Why RIGRS is Your Preferred Partner for Drilling Safety
At RIGRS, we don’t just supply equipment; we provide peace of mind for your drilling campaign.
API Certified Manufacturing: Every BOP Control Unit undergoes 1.5x working pressure testing.
Global Logistics: We maintain a massive inventory of Koomey unit parts—from bladder sets to regulator valves—ready for immediate dispatch.
Custom Engineering: Whether it’s a skid-mounted land unit or a containerized offshore system, our engineers tailor the design to your specific rig floor layout.
Take the Next Step in Rig Safety
Optimize your procurement cycle with RIGRS technical expertise.
Looking for a Quote? [Request an RFQ for a 2026 BOP Control Unit]
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Need the proprietary RIGRS Koomey Unit Operations Manual? Contact our engineering team for a PDF copy.
Direct Sourcing Desk Email: [info@rigrs.com]
Full Technical Component Database: [rigrs.com]
Enterprise Procurement Hotline: [+86 18615995257]
