EML MANUFACTURING, LLC.

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FUSIBLE LOOP CHARGE PANEL

 

Fusible Loop Charge Panel

What is a fusible loop charge panel? A fusible loop charge panel is a pneumatic panel that monitors a fusible loop system for the detection of fire. The fusible loop panel also complements a fire and gas detection system. Fusible loop system are installed on offshore platforms to detect fire. The installation of the fusible loop are in accordance with API RP 14C recommendation.

The charge panel will regulate and meter a fix amount of instrument air to the fusible loop. During a fire, the heat generated by the fire will melt one or more of the fusible plug located in or near the fire. The 'melting' of the plug will cause a release of air from fusible loop through the plug. Since the release of this regulated air exceeds the amount of regulated/metered air supply, the pressure in the loop will decrease significantly. This decrease in pressure is monitored by a pressure switch on the charge panel. The signal from the switch is then utilized to signal an alarm to the Fire and Gas System.  In addition, an additional pneumatic output is tied to the deluge valve pilot valve where it is use to open the deluge valve.

We offer 3 standard panels with the following data sheet.

  Customer:               Rev Date By
  Tag#                 EML Manufacturing A 3/27/2010 BW
  Description:                       P.O. Box 41935, Houston, TX 77241      
  Project:                                      Ph 281-272-2066      
  Doc#: CHARGE PANEL DATA SHEET                  www.emlmanufacturing.com      
                                                                CHARGE PANEL  DATA SHEET    
  Model       FLCP-10     FLCP-20   FLCP-30  
  Pneumatic Supply                  
  Media       N2 / Inst. Air   N2 / Inst. Air   N2 / Inst. Air  
  Max Pressure, psig     180@150F     180@150F   180@150F  
  Connection                  
  Pneumatic Supply     1/4" FNPT     1/4" FNPT   1/4" FNPT  
  Outlet to plugs     1/4" Tube     1/4" Tube   3/8" Tube  
  Pressure Sensor     1/4" Tube     1/4" Tube   Connected To Sensor
  Volume Bottle, Note 1                  
  Size       N/A     0.5 gal (2L)   0.5 gal (2L)  
  Material       N/A     316/L   316/L  
  Design, psig     N/A     200@200F   200@200F  
  Qty       None     1   1  
  Isolation Valve     No     No   Yes  
  Drain Connection     N/A     1/4" NPT   1/4" NPT  
  Pressure Gauge                  
  Supply, 0-200psig/(kg/cm^2)   No     No   Yes - Panel Mount
  Regulated, 0-60psig/(kg/cm^2)   Yes     Yes   Yes - Panel Mount
  Loop, 0-60psig/(kg/cm^2)     No     Yes - Panel Mount Yes - Panel Mount
  Gauge Size & Material     2", 316SS     2" & 2.5", 316SS 2.5", 316SS  
  Gauge Vibration Resistance   Yes     Yes   Yes  
  Gauge Isolation Valve, 316SS   No     No   Yes - Panel Mount
  Construction                  
  Type       Plate     Panel - 4 sides enclosed Panel - 4 sides enclosed
  Sunshade       No     Optional   Optional  
  Material       316/L SS     316/L SS   316/L SS  
  Mounting        Angle Stand     Angle Stand   Angle Stand  
  Size, in (approx)     24"h x 20"w x 8"d   24"h x 20"w x 8"d 24"h x 20"w x 8"d
  Tubing Size       1/4" x 0.035"   1/4" x 0.035"   3/8' x 0.035"  
  Tubing Material     316SS Seamless   316SS Seamless 316SS Seamless
  Tubing Fittings     316SS, Double Ferule 316SS, Double Ferule 316SS, Double Ferule
  Supply Isolation Valve     Yes     Yes   Yes  
  Filter Regulator                  
  Material       316SS     316SS   316SS  
  Drain       Manual     Automatic   Automatic  
  Controls                    
  Inlet Check Valve, 316SS. Note 2.   Single     Single   Double (Two)  
  Manual Loading Valve, 316SS. Momentary. Note 3. No     Yes   Yes  
  Auto lockout valve, 316SS. Note 4.    No     No   Yes  
  Metering Orifice, 316SS.     Yes     Yes   Yes  
  Pressure Sensor                  
  Sealed Pressure Switch     Yes - Field Installed Yes - Field Installed Yes - Integral  
                       
  Note 1 - Volume bottle provides an air reservoir in the event of pneumatic supply interruption.       
  Note 2 - Check valve prevents the loss of loop/reservoir pressure in the event of pneumatic supply interruption.   
  Note 3 - Loading valve speeds up the start-up of the fusible loop.             
  Note 4 - Valve isolates pneumatic supply from loop when a plug is activated.         
  Note 5 - Explosion proof hermetically sealed pressure switch to indicate the activation of a fusible plug.    
              Switch approved for Division 1 and 2; Class I, Groups A, B, C and D; Class II, Groups E, F and G Hazardous Locations.
              ATEX approved switch is available on request.            

 

Specification for our high quality FLCP-30 charge panel includes

a         Single zone charge panel. Panel constructed out of 316/L with full depth enclosure  on top and sides.

b         Equipped with 2 liter (0.52 gallon) capacity volume bottle with double check as a back-up to interruption of air/nitrogen supply. Volume bottle constructed out of  316/L stainless steel and design for 200 psig with hydro testing. Equipped with 316SS isolation valve and drain. 

c         All 316SS filter regulator with automatic liquid drain feature. 

d         Panel equipped with 316SS quick charge button to provide quickly and efficient start-up.

e         A 316SS low pressure cutoff switch is provided to remove air/nitrogen from the loop in the event of a fusible plug activation to ensure a failsafe system.

f          Panel is equipped with an explosion proof hermetically sealed pressure switch to indicate the activation of a fusible plug. Switch approved for Division 1 and 2; Class I, Groups A, B, C and D; Class II, Groups E, F and G Hazardous Locations. ATEX approved switch is available on request.

g         Copper free aluminum pull box provided to facilitate wiring of pressure switch.

h         2.5" Vibration resistant stainless steel pressure gauge for the indication of supply pressure. Dual scale 0 to 200 psi/(kg/cm^2) range. Equipped with 316SS isolation valve mounted on front of panel with locking provision.

i           2.5" Vibration resistant stainless steel pressure gauge for the indication of regulated pressure. Dual scale 0 to 60 psi/(kg/cm^2) range.  Equipped with 316SS isolation valve mounted on front of panel with locking provision.  

j           2.5" Vibration resistant stainless steel pressure gauge for the indication of loop pressure. Dual scale 0 to 60 psi/(kg/cm^2) range. Equipped with 316SS isolation valve mounted on front of panel with locking provision. 

k         3/8" tube connection provide with 316SS inlet isolation valve with locking provision for customer's incoming pneumatic supply.

l           3/8" tube connection provide for connection to fusible loop. 1/2" tube connection available on request.

m       Tubing are 3/8"OD x 0.049" seamless 316/L stainless steel. Tube fittings are high quality double ferrule 316SS tube fittings.

n         All wetted parts are constructed out of 316 Stainless Steel to prevent corrosion and contamination of fusible loop. 

o         Air or Nitrogen supply to range from 60 to 180 psig.

p         Size is approximately 20W x 24H x 8.5D.

 

We also offer fusible plug and fusible tubing to complement our fusible loop panel.

Do contact us for your instrumentation needs.