Secondary Containment

TS-SCCM - Highlight.psd

Secondary Containment

The secondary containment monitoring (SCM) system detects leaks in double-wall piping, tanks, and containment sumps. The system utilizes the siphon/vacuum port of a submersible turbine pump to draw a vacuum on these interstitial spaces. The vacuum levels are then continuously monitored to detect any potential leaks in these double-wall containments.

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Up to four different interstitial spaces can be connected to each submersible turbine pump using a combination of single and dual channel TS-SCCM secondary containment control modules and secondary syphon ports. The secondary containment control module collects information on all interstitial spaces and delivers it to an EVO Series ATG for reporting and alarms.

Vital System Monitoring

The control module gathers system status, replenish rate, alarm, and diagnostic information. It will trigger the ATG to alarm when a vacuum cannot be maintained or when liquid is detected in an interstitial space, with optional positive submersible turbine pump shut-down upon alarm.

Highly Accurate

Secondary containment monitoring utilizes pattended AUTO-LEARN® technology to learn the actual interstitial space being monitored based on the vacuum flow rate through a calibrated orifice for precise leak detection.

Complete Kit

All components necessary for installation including syphon check valve, vacuum hose, fittings and other installation accessories are available from Franklin Fueling systems. SCM is compatible with FE PETRO® brand submersible turbine pumps as well as Red Jacket® STPs.


Secondary containment monitoring uses the syphon port of the submersible turbine pump to draw and maintain a vacuum on the secondary containments of lines, sumps, tanks and vapor lines. During installation a calibrated leak is introduced during the AUTO-LEARN® process which allows the system to learn the vacuum characteristics of each containment space. The vacuum level is continuously monitored and compared to established leak rates to ensure that the secondary containment is tight.


  • Operating vacuum level: -2 to -6 inHg
  • Available software option on EVO™ 550, EVO™ 5000, EVO™ 600, and EVO™ 6000.
  • TS-420IB, TS-RLY and TS-ACI modules and the TS-SCM software option must be ordered and installed in the tank gauge ATG.
  • Requires TS-SCCM secondary containment control module consisting of pressure sensor(s) and solenoid valve(s).
  • Requires syphon check valve to connect to STP manifold.
  • Containments to be monitored must terminate inside the submersible turbine pump containment.
  • Installer must verify the vacuum limitation of each containment with its manufacturer prior to installation.


  1. Secondary containment control module
  2. Vacuum line to secondary contained pipe
  3. Pipe fitting with integrated test port
  4. Secondary contained pipe
  5. Vacuum line to secondary contained tank
  6. Tank installation kit
  7. Line weight (included with tank install kit)
  8. Syphon check valve
  9. EVO™ 550, EVO™ 5000, EVO™ 600,  or EVO™ 6000 with SCM software


  • Meets all requirements of California AB2481.
  • National Work Group approved.

Secondary Containment Control Modules

Model Number Description
TS-SCCM/1 Single channel secondary containment control module
TS-SCCM/2 Dual channel secondary containment control module
TS-SCMCAL Leak generator kit, one per station
VS-SCCM/1 220 VAC single channel secondary containment control module
VS-SCCM/2 220 VAC dual channel secondary containment control module

Secondary Containment Installation Kits

Model Number Description
TSP-SCLSI Product, vapor line and sump containment install kit
TSP-SCTK2 Tank containment install kit for 2" NPT risers, in-tank hose sold separately
TSP-SCTK2B Tank containment install kit for 2" BSP risers, in-tank hose sold separately
TSP-SCTK4 Tank containment install kit for 4" NPT risers, in-tank hose sold separately
TSP-SCTK4B Tank containment install kit for 4" NSP risers, in-tank hose sold separately

Secondary Containment Accessories

Model Number Description
TSP-SCBRB ¼" NPT barbed fittings (Qty 5)
TSP-SCBRBT ¼" NPT barbed T-fitting
TSP-SCCLP Hose clamps (Qty 5)
TSP-SCTB25 25' vacuum hose
TSP-SCTB50 50' vacuum hose
TSP-SCTB100 100' vacuum hose
400137908 Syphon check valve, alcohol-gasoline compatible (when ordered with STP/IST)
TSP-SCVLV Schrader valves (Qty 5)