1. Preferred Utilities Manufacturing Corp
Fuel Oil Handling Systems
Overview
Preferred Utilities Mfg. Corp.
31-35 South Street • Danbury • CT

2. PUMC Identity
Founded in 1920 and in continuous operation since then. We are an engineering - based manufacturer of combustion and fuel handling products for industrial, institutional, and commercial power plants.
Our Core Business is Combustion Control.

3. PUMC Identity

4. Plant Wide Controller Hot Water Reset Application
2 to 10 Boiler Modulating Lead / Lag

5. New Plant Wide Controller (PWC)
Displays
Plant Overviews
Historical Trends
Alarm Summary
Setup

6. PCC-III™ Multiloop Controller
Third Generation Controller
12 year PCC II life with over 2000 installed
2 year PCC III life with over 300 already installed
There are many digital controller manufacturers, but NONE have Preferred’s in-depth and on going combustion control experience.

7. New WN Best Combustion System
Low NOx
Low Energy Consumption
Burner +
Controls +
BMS +
SCADA =
Maintained
Performance

8. Complete System Expertise

9. Typical Piping Arrangement
Emerg. Gen.
Day Tank
Vent
with Rupture Basin
Fill
Return
Supply
Suction
Pump
Main Oil Tank

10. Fuel Fill Spill Containers Model 1 In Ground Spill Container
Drains oil spilled from delivery disconnect into storage tank
Designed to handle driveway traffic
Removable bellows for easy fuel testing without pavement excavation.

11. Fuel Fill Model 2 In Wall Spill Container
For indoor storage tanks with
fill lines to building walls
Standard models from simple
box to integrated digital level
display and overfill alarming
We can customize many things: A bronze Model 2 was recently installed at Radio City Music Hall to contribute to the building’s décor.

12. In-Wall Fill Box with Sign

13. Typical Piping Arrangement
Emerg. Gen.
Day Tank
Vent
with Rupture Basin
Fill
Return
Supply
Suction
Pump
Main Oil Tank

14. Vent
Vent Caps & Bricks
Standard Tank Vent Protectors for storage tanks
Conform to Standards for the Installation of Oil Burning Equipment (NFPA No. 31)

15. Vent Vent Bricks provide a terminal for indoor storage tank vent lines
Standard masonry brick size
Fits 2" & 3" vent lines

16. Typical Piping Arrangement
Vent
Emerg. Gen.
Day Tank
with Rupture Basin
Fill
Return
Supply
Suction
Pump
Main Oil Tank

17. Anti-Syphon Valves Patented by Preferred Utilities.
UL Labeled & Listed
3 million cycles to get UL approval….

18. Anti-Syphon Valve Manifold

19. Anti-Syphon Valves
Used where fuel leaks will result in fuel being syphoned into areas which can cause a dangerous and costly situation
UL Labeled and listed
For No. 2 through No. 6 Oils
5’, 10’, 15’ or 20” Head Selection
Installed at highest point in piping

20. Fire Safety Shut-off Valves
Preferred’s Lever Gate Valve
Fully mechanical
Emergency fuel line shut-off is mandated by many codes
Fusible links open at 165F
for pipe ranges 1" - 3"
Fusomatic Valve
Replaceable fusible element
Fusible links open at 165F, May be manually opened/closed
for pipes 3/4" or 1"

21. Type 110 Fire Valve

22. Foot Valves
Ensures maintenance of pump prime by preventing oil backflow into the tank when pumps are off
Single Poppet
1/2” to 3” Size
Double Poppet
Double the protection
1-1/2” or 2” Sizes
Foot Valve Extractor Fitting
Easy Removal and Inspection of Foot Valve

23. Foot Valves

24. Typical Piping Arrangement
Vent
Emerg. Gen.
Day Tank
with Rupture Basin
Fill
Return
Supply
Suction
Pump
Main Oil Tank

25. Relief Valves Very important for use on positive displacement pumps
Sizes for 1/2” to 3”
For use with any type oil
Pressure Ranges of 5-35psi, psi, psi

26. Typical Piping Arrangement
Vent
Emerg. Gen.
Day Tank
with Rupture Basin
Fill
Return
Supply
Suction
Pump
Main Oil Tank

27. Fuel Components Strainers Duplex Simplex
No flow interruption for routine cleaning
90° handle movement switches baskets
Handle blocks inadvertent opening of active side
Sizes from 3/4" - 6"
Simplex
Special yoke design for quick cleaning
Large basket
Sizes from 1/2" - 2"

28. Pump Sets with Multiple Pumps
Multiple pumps share common suction and discharge piping
Most common is duplex set
two 100% pumps, one for backup
control system can monitor flow, start lag pump
Triplex pump sets for large plants
three 50% pumps allow for one spare
two 100% “winter pumps” - one 50% “summer pump”

29. Strainer Close-up

30. Pump Set Leak Detector

31. Pump Set Relief Valves

32. Flow Sensor

33. Flow Control Manifold

34. Day Tank Features
Complete Tank, Rupture Basin, and Instrumentation Package
Standard & Custom Sizes
Standard: Gallons (UL Approved)
Custom: up to 2,000 Gallons
Tank/Rupture Basin Assemblies 290 Gal or Less are Doorway Accessible
UL Approved
Catalog 22, p16-17

35. Day Tanks Features Continued
UL Approved
Available with integrated rupture basin
160% of tank capacity (200% for NYC)
Includes: 4 point Level Switch, Tank Gauge, Vent Protector
Fully Tested at Factory Prior to Shipment

36. Tank Gauge D3 Tank Gauge Single Tank Applications
Wire Float Available for Limited Tank Clearance
Standard 4-20 mA output

37. Wire Float Level Sensor
Requires only 14 Inches of Head Room
Reads tanks 36 to 145 inches Tall
Buna-N Float
Requires only a 4 inch 125# Flange
Easy to Install and Calibrate
Can Be Installed in an Empty or Full Tank
Intrinsically Safe

38. Wire Float Level Sensor

39. Day Tank Level Sensor

40. Tank Gauges Digital Level Readout in Inches and Gallons
Alarm Silence, Test, and Alarm Recall Push-buttons
Analog Output for Remote Display of Level
Interface to Leak Detectors
Displays H20 for Water Leak (Outer Wall)
Displays OIL for Oil Leak (Inner Wall)
Low and Overfill Alarm Relays

41. Leak Detection Factory Mutual Approved Intrinsically Safe
Monitors for both Oil and Water
Three Detectors per Tank Gauge
Manual Testing of Unit
Completely Potted for Long Life
Fail Safe Circuitry

42. Leak Sensor Test Modules

43. Interstitial Space Leak Sensor

44. Floor Leak Detector

45. Leak Sensor

46. Leak Sensor Test Module

47. Fil-A-Larm Systems
Mounted at Tank Fill Point to Assist Truck Driver in Properly Filling Tank
Bright Lamps Indicate When Tank Is Full
Alarm Horn Sounds For No More Than 90 Sec.
Alarm Test and Alarm Silence Push-buttons
Available with Gallons Display

48. Fuel Components Tank Selector Valves Replaces confusing array
of hand valves
Simple lever operation
transfers both supply & return
lines from one tank to the other
Designed with no “blind spots” where flow could be blocked to or from the tanks
Threaded or flanged connections available

49. Back Pressure Regulating Valves
Used in a flow loop to maintain proper pressure for burners.
Type BQ for flow rates up to 390gal/hour
Standard Ranges of 26-75psi or psi
1/2” Size
Type V for higher flow rates
Standard Range of psi
1” Size

50. Pump and Heater Sets Residual Fuel Oil Waste Liquids
Steam or Hot Water
Dual Transfer Safety Heaters
Single Transfer Oil Heaters
Job Specific Engineering

51. Emergency Fuel Life Extension
Filtration to 2 microns
Water removal
Chemical treatment
Automatic controls
Doubles fuel life
Engines start reliably

52. Filtration Sets
Standard sets with options
Fuel life extension

53. Preferred Utilities Manufacturing Corp
For further information, contact...
Preferred Utilities Mfg. Corp.
31-35 South St. • Danbury • CT
T: (203) • F: (203)