RESIDENTIAL AND COMMERCIAL REGULATORS FOR ABNORMAL OPERATING CONDITIONS (AOC) WITH 3 FOOT CLEARANCE INSTALLATION REQUIREMENTS.

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Transcription:

RESIDENTIAL AND COMMERCIAL REGULATORS FOR ABNORMAL OPERATING CONDITIONS (AOC) WITH 3 FOOT CLEARANCE INSTALLATION REQUIREMENTS Presented by Jon Beam Equipment Controls Company

3 FOOT ABNORMAL OPERATING CONDITIONS (AOC) REGULATOR INSTALLATION AND REQUIREMENTS Where did they come from?

WHY? DOT 192 192.353 Customer meters and regulators: Location (c) Each meter installed within a building must be located in a ventilated place and not less than 3 feet (914 millimeters) from any source of ignition or any source of heat which might damage the meter. In 2009 the NFPA 54 changed Sec. 5.7.2.3, which now states, there shall be a minimum of 3 feet of clearance from a door, window, or an ignition source and a gas meter or gas regulator relief vent.

WHY NOW? 1. At first, inspectors and Utilities were not aware of enforcing the code. 2. Regulatory agencies put pressure on Public Service Commissions (PSC) to begin enforcing this code. 3. PSC s began to pressure Utilities to come up with a solution. 4. PSC s & Utilities had to work to agree on an economical, totally safe & aesthetic solution. 5. A true team effort by everyone was required to come up with a solution!

THIS TEAM INCLUDED 1. Washington Gas Light 2. Virginia Public Service Commissions (PSC). 3. National Grid, Virginia Natural Gas, NiSource, Atlanta Gas Light in the background. 4. New York state and Pennsylvania Public Service Commissions. 5. CSA as a second party testing and witness to the regulators operation

REASONS FOR THE CODE? The following are examples of installations where meter set is in violation of the code!

The picture below shows inadequate clearances between the gas service and electric meter. The electric meter is classified as an ignition source and there shall be a minimum of 3 feet of clearance between an ignition source and a gas regulator relief vent.

ROW HOUSES

Intakes on High efficiency furnaces!

These types of installations have caused many problems for Utilities and cost thousands of dollars to fix including: 1. Relocating services. 2. Running expensive & unsightly vent lines. 3. Vent lines can affect the performance of the regulator. 4. Sometimes retrofitting buildings, such as condominiums and row houses provide no options for either of the above.

CASE STUDY TIMELINE 1. Met with Washington Gas & Virginia PSC July of 2013. 2. Did preliminary Field & Lab tests from August to October of 2013. 3. Other Utilities and PSC s were involved in the background, but we preferred to work with only 1 Utility company during this period. 4. First Field trial was installed in December of 2013. 5. To date, over 40,000 installed in the US.

DESIGN CRITERIA AGREED UPON BY ALL PARTIES TO SATISFY THE PSC AND EVERYONE INVOLVED 1. There is no US code to compare this standard to for zero clearance. 2. We decided the requirement needed to meet the CSA/ANSI Z21.80a-2005 / CSA 6.22a-2005 line regulator vent limited standard is < 2.5 cu.ft./hour. 3. We felt redundant safety was important and required. 4. Everyone had to agree it would meet the requirements. 5. MOST IMPORTANT: PF wanted to have a 3 rd party (CSA) certification to ensure our product met the standards.

SOLUTION: FE SERIES REGULATOR A NEW STYLE OF SERVICE REGULATOR FOR THE USA

SOLUTION!

SOLUTION!

SOLUTION!

FE & FEX

WHY THE FE The FE series of two stage, self-driven, spring loaded regulators are widely used in both residential and commercial installations using Natural Gas, LPG. A balanced two stage regulator results in accurate regulation and high operational reliability. They can be mounted in any position. They are designed for either direct installation to a gas meter or used in general pipeline work.

FE WE WANTED ABSOLUTE SAFETY For absolute safety, the main diaphragm consists of a double diaphragm assembly as redundant back up. The diaphragm incorporates a vent limiter inside the regulator, which limits the vent s gas flow in case of diaphragm failure. A slam shut valve is incorporated for over pressure protection. Has been used indoors and in non-vented applications in Europe and around the world for almost 20 years.

FINAL DECIDED SETTINGS OF THE REGULATORS Low Pressure Residential & Commercial Service Outlet Pressure 7" W.C Token IRV: 13" W.C. Slam Shut: 19" W.C. High Pressure Residential & Commercial Service Outlet Pressure: 2 PSIG Token IRV: 2.7 PSIG Slam Shut: 3 PSIG

THE FE IS ANSI B109.4 & ANSI Z21.80 APPROVED

PF IS A CSA-APPROVED & CERTIFIED TESTING LABORATORY & FACTORY

FE & FEX Spring Operated Low Pressure Outlet Normally Fail Open Sizes: Inlet ½, ¾, 1 Outlet - ¾, 1, 1¼, 1½ Body Materials: Die Cast Zinc/Aluminum Connections: FNPT Fully Balanced 2 stage regulation design Can be mounted in any position Inlet and Outlet Test Connections Available Maximum Inlet Pressure: 125 psig Outlet Pressure: 6 to 7.1 PSIG Accuracy Range: +/- 1 to 5% or less Lock-up Pressure: +2 to 3.5% of Set Point Maximum Capacity: 215 to 4,500 scfh OPTIONS: OPSO (High gas pressure shut-off) Slam-Shut Valve Very Accurate for fixed factor billing Available with: UPSO (Low gas pressure shut-off )

CAPACITY MODEL Nominal CAPACITY REQUIRED MIN. Inlet pressure (Psi) + Set Point for full capacity FE 885 cf/h 4.3 FEX 4,500 cf/h 7.5

2 sizes offered Maximum Inlet Pressure 125 Psi Wide Outlet Pressure Range Wide Flow Capacity Range FE FEX 885 scf/h 4,500 scf/h

INSTALLATION

FE FEATURES

INLET FILTER TO KEEP DEBRIS OUT OF THE REGULATOR Inlet filter: area (0.775 inch 2 ) 100 μm efficiency

SAFETY DEVICES FE regulators are equipped with: 1. Over Pressure Shut-Off device (OPSO) 2. Optional Under Pressure Shut-off (UPSO) OPTIONAL 1 2

SLAM SHUT FOR ULTIMATE PROTECTION New cover has a slot to use as a tool to reset the slam shut! Yellow cover "w.c / Red cover PSIG

ADDED SAFETY WITH DUAL DIAPHRAGM SAFETY DIAPHRAGM WORKING DIAPHRAGM INTERGAL VENT LIMITER

FE DIAPHRAGM ASSEMBLY Adjustable IRV Sealing ring

Thank You!