Protect your system from damage. Accurately monitor for water hammer and pressure spikes and be able to react quickly.

Blacoh’s patented SurgeWave™ Transient Monitoring System solves the need for pipeline operators to detect and record transient pressure events occurring in water, wastewater and petroleum pipelines. The system is unique in that it employs a system of dynamic pressure transducers and digital technology to monitor pipelines for indefinite periods of time. When a transient such as a pressure surge, pressure spike or water hammer event is detected, the system activates a high speed data recorder to record the event 100x/second.

Often, plant operators do not find out about these dangerous abnormalities until much later when it is too late. With this Blacoh SurgeWave™ Transient Monitoring System installed, it will notify designers, engineers, manufacturers and operators immediately within a few minutes of the event. They can assess pipeline performance, pressure, flow, and pump speed and perform the necessary corrections and maintenance.

Unlike conventional data loggers, SurgeWave’s high speed data collection allow operators to detect any anomalies that would’ve otherwise gone undetected with insufficient recordings. Use SurgeWave to prevent pipe fatigue, breakage and cavitation.

What is Transient Pressure?

Often referred to as “surge” or “water hammer,” a transient pressure is a wave phenomenon that accompanies a rapid change of fluid velocity in a pipeline. It can be caused from a sudden start/stop of pump or the closing of a valve, and is often heard as a large bang in the pipes (water hammer). These pressure variations can be positive or negative and have a magnitude several times the normal or maximum operating pressure, resulting in dangerous system damage if not mitigated or monitored. The duration of the pressure spike can be anywhere from several hundredths of a second to a few minutes. Blacoh’s patented SurgeWave™ Transient Monitoring System makes it possible for a user to capture these pressure fluctuations, address the pressures loads and protect their pipeline systems.


  • High speed data recorder instantly detects and records transient pressures up to 100 times per second
  • Capable of capturing positive and negative pressures
  • Software, website and mobile app provide graphical analysis of recorded data
  • Alert when any pressure transient is detected
  • Set the limits of the system’s normal operating pressure
  • Receive email alerts if boundaries are exceeded
  • Daily summary report of operations


  • Portable and easy to install on any pipeline transporting fluid
  • Wireless communication via WiFi or cellular
  • Integration with SCADA systems
  • Synchronize multiple units via GPS for precise timing


  • Actuated Valves, Pressure Reducing Valves, Pressure Relief Valves, Pump Control Valves, Air/Vacuum Valves, Check Valves
  • Pump Suction/Discharge, Constant/Variable Speed
  • Back Flow Preventers
  • Surge Vessel and Pulsation Dampener Liquid Level


  • Leaks and ruptures
  • Faulty or insufficiently placed air valves
  • Faulty valve actuators
  • Isolated surge chambers
  • Faulty or inadequate pumps
  • Poor pipeline management procedures
  • Electrical failures
  • Pulsations and oscillations from unstable pressure


Perfect for remote locations where cellular service is limited, data is stored locally on an internal USB drive. Multiple inputs are provided for large piping networks with plug in cables for quick setup. Power consumption is very low, making the GUARDIAN ideal for solar powered applications.

  • WiFi communication to laptop
  • Data stored locally to USB drive
  • Up to 8 inputs, 2 outputs
  • Plug in transducer cables
  • Power: 160 mA @ 12 VDC
Laptop with software
Pelican storage case
Pressure transducer
Transducer cable
Mounting feet
WiFi antenna
GPS antenna
12V battery cable
AC adaptor
Spare fuse


Designed for locations with cellular service, the DEFENDER is ready to go with hard wired cable connections. All system data is stored on remote cloud servers and can be accessed anytime from anywhere via the Blacoh Surge website or mobile app.

  • Cellular communication to web/mobile app
  • Data stored to cloud servers
  • 2 inputs
  • Hard wired transducer cables
  • Power: 500 mA @ 12 VDC
Pressure transducer
Transducer cable

Cellular antenna
AC adapter


  • 1) The Blacoh subsea valve monitoring system provides verification of subsea valve closure through patented transient wave analyses.
  • 2) Blacoh water flood pressure monitoring system provides computer surge modeling of  water flood systems and include sizing of Blacoh surge vessels and control valves.
  • 3) Blacoh crude oil pumping transient monitoring system provides pressure surge alarms and help identify pipeline blockage location.  Blacoh's patented SurgeWave™ computer system records changes in wave speed and reflection to locate crude oil pipeline blockage.


Properly Mitigating System Shaking & Water Hammer. Surge analysis software helps protect against hydraulic transient

Performance Guarantees Confirmed Via Proof of Design, Part 1

Performance Guarantees Confirmed Via Proof of Design, Part 2