Preferred Utilities Manufacturing Corp Fuel Oil Handling Systems Overview Preferred Utilities Mfg. Corp. 31-35 South Street • Danbury • CT www.preferred-mfg.com

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.

PUMC Identity

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

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

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.

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

Complete System Expertise

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

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.

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.

In-Wall Fill Box with Sign

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

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

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

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

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

Anti-Syphon Valve Manifold

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

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"

Type 110 Fire Valve

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

Foot Valves

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

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, 25-100psi, 75-300psi

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

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"

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”

Strainer Close-up

Pump Set Leak Detector

Pump Set Relief Valves

Flow Sensor

Flow Control Manifold

Day Tank Features Complete Tank, Rupture Basin, and Instrumentation Package Standard & Custom Sizes Standard: 20-620 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

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

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

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

Wire Float Level Sensor

Day Tank Level Sensor

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

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

Leak Sensor Test Modules

Interstitial Space Leak Sensor

Floor Leak Detector

Leak Sensor

Leak Sensor Test Module

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

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

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 76-150psi 1/2” Size Type V for higher flow rates Standard Range of 30-150psi 1” Size

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

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

Filtration Sets Standard sets with options Fuel life extension

Preferred Utilities Manufacturing Corp For further information, contact... Preferred Utilities Mfg. Corp. 31-35 South St. • Danbury • CT T: (203) 743-6741 • F: (203) 798-7313 www.preferred-mfg.com