Frac Protection System

The NOV Frac Protection System is a safety system designed to protect against overpressure events during fracturing operations.


Protect personnel and surrounding area from pressurized fluid

Designed to protect against over-pressure events during fracing operations, the NOV Frac Protection System (FPS) protects personnel and the surrounding area from the pressurized fluid by relieving fracturing fluid into a tank.

The standard FPS skid includes a manifold section, relief tank, hydraulic power unit, and control system. This unique system is available in multiple configurations—with and without a 72-bbl flowbank tank and reduced functionality to decrease on-site footprint.

During fracing operations, the FPS is connected to the primary treatment line, and a signal from the FPS skid control system or the customer’s data van will trigger the relief valve in case of over-pressurization in the line.

Our relief valve will open the instant an over-pressure event has occurred, and up to three pressure transducers will be monitoring working pressure every 20 milliseconds upstream from the FPS. The controls system will email a report every time an over-pressure event occurs, and over-pressure relief points can be set locally or remotely while the FPS is in service.

Versatile design, allowing fit-for-purpose utilization

  • Tankless FPS: With the 72-bbl storage tank removed, this option reduces the footprint by approximately 45% while still maintaining all the benefits from the full-sized FPS. Discharge from the FPS can be routed to a discharge tank via a 3-in. 1502 connection on the FPS. 
  • Compact FPS: In this design, the 72-bbl tank and the main treatment and test isolation valves have been removed while still retaining the redundancy of the two relief valves installed in series. This option offers a 55% reduction in footprint compared to the full system while maintaining the FPS’s core functionality, ensuring reliable and repeatable operations.


  • Manifold system designed to increase safety in operation, along with reducing downtime and valve wear as they can be easily tested with water instead of frac fluid
  • Skid-mounted tank system for safe discharge of the over-pressurized frac fluid for safety and environmental protection
  • Remote access to instrumentation and control system with 24-hour access
  • Customizable system allows for customer-specific solutions
  • Built-in redundancy decreases downtime and increases efficiency; FPS can run for hours on battery power if the frac site loses power
  • Automatic reporting minimizes human error
  • System designed for offline function test of relief valve to increase the life of the valve body, gate, and seat
  • Fully integrated with our GoConnect™ remote monitoring system

Frac Protection System Dimensions

   Standard FPS Tankless FPS   Compact FPS
 Length  220 in. (559 cm)   115 in. (292 cm)  100 in. (254 cm)
 Width  90 in. (229 cm)  95 in. (241 cm)  95 in. (241 cm)
 Height 126 in. (320 cm)  95 in. (241 cm)  95 in. (241 cm)
 Estimated Weight (dry) 17,500 lb (7938 kg)  13,000 lb (5897 kg)  10,500 lb (4763 kg)

  • Frac Protection System Flyer

Three-quarter view of frac protection system outside facility
Rear view of frac protection system outside facility
Corner view of frac protection system outside facility
Side view of frac protection system outside facility

Related Products

Pup Joints

Our Anson pup joint suit any application to interconnect your flowline.

Learn more

Frac Pumpers

Designed for the increasing demands of today’s shale applications where duty cycles are extended, and reliability is key.

Learn more


We manufacture equipment engineered to meet the demands for tomorrow's well stimulation requirements while maximizing your bottom line.

Learn more

Intervention and Stimulation Aftermarket Solutions

Reduce total cost of ownership of your coiled tubing, stimulation, acidizing, wireline, sand handling, and cementing equipment with our aftermarket solutions.

Learn more

Related Tools

Intervention and Stimulation In stock Inventory

Coiled tubing, nitrogen, pressure pumping, cementing, and wireline in-stock inventory ready to ship worldwide
Learn more