Engineering Data

Technical Specifications

Comprehensive hydraulic performance data, water distribution analysis, and installation parameters for all Fenix fire sprinkler models — backed by UL and FM certification testing.

1. Hydraulic Performance — Flow Rate vs. Pressure

K-Factor = 5.6 (80 metric). Formula: Q = K × √P where Q is flow in LPM and P is pressure in bar.

  • Actual Flow Rate (LPM)
  • Minimum Required (LPM)
0.51.01.52.03.04.06.08.012.0Pressure (bar)0255075100Flow Rate (LPM)

0.5 bar

18.5 LPM

1.0 bar

26.2 LPM

1.5 bar

32.1 LPM

2.0 bar

37.1 LPM

3.0 bar

45.5 LPM

4.0 bar

52.5 LPM

6.0 bar

64.3 LPM

8.0 bar

74.3 LPM

12.0 bar

90.9 LPM

2. Response Time Index (RTI) Comparison

RTI measures thermal sensitivity. Lower RTI = faster activation. QR sprinklers (RTI ≤ 50) activate significantly faster than SR (RTI ≥ 80).

RTI Values by Product Series

SRQR020406080RTI (m·s)½

Time to Activation vs. Ambient Temperature

At rated temp. 68°C, gas temperature ramp rate: 5°C/min

  • QR Response Time (s)
  • SR Response Time (s)
304050576880100Gas Temp (°C)04590135180Time (s)

3. Water Distribution Coverage Comparison

Maximum and minimum allowable coverage areas per NFPA 13 and FM installation requirements.

  • Max Coverage (m²)
  • Min Coverage (m²)
Pendent (SR/QR)Upright (SR/QR)Sidewall (SR/QR)Conventional (SR/QR)Concealed (SR/QR)06121824Area (m²)

4. Multi-Pattern Water Distribution

Radial water distribution comparison across sprinkler types — top-down view showing discharge intensity by direction.

  • Conventional
  • Pendent
  • Sidewall
  • Upright
NNEESESSWWNW

5. Design Density by Hazard Classification

Required water application density and design area per NFPA 13 for different hazard occupancies.

  • Density (mm/min)
  • Design Area (m²)
Light HazardOrd. Group 1Ord. Group 2Extra Hazard 1Extra Hazard 205101520Density (mm/min)060120180240Design Area (m²)

6. Complete Product Specifications Table

CodeNameTypeResponseK-FactorMin Pres.Max Pres.CoverageThreadTemp Range
FE0001Pendent SRPendentStandard5.60.5 bar12 bar≤20.9 m²1/2" NPT57–93°C
FE0002Pendent QRPendentQuick5.60.5 bar12 bar≤20.9 m²1/2" NPT57–93°C
FE0003Upright SRUprightStandard5.60.5 bar12 bar≤20.9 m²1/2" NPT57–93°C
FE0004Upright QRUprightQuick5.60.5 bar12 bar≤20.9 m²1/2" NPT57–93°C
FE0005Sidewall SRSidewallStandard5.60.5 bar12 bar≤9.3 m²1/2" NPT57–93°C
FE0006Sidewall QRSidewallQuick5.60.5 bar12 bar≤9.3 m²1/2" NPT57–93°C
FE0007Conventional SRConventionalStandard5.60.5 bar12 bar≤20.9 m²1/2" NPT57–93°C
FE0008Conventional QRConventionalQuick5.60.5 bar12 bar≤20.9 m²1/2" NPT57–93°C
FE0009Concealed SRConcealedStandard5.60.5 bar12 bar≤20.9 m²1/2" NPT57–93°C
FE0010Concealed QRConcealedQuick5.60.5 bar12 bar≤20.9 m²1/2" NPT57–93°C