5.1 student book © 2005 propane education & research council 5.1 designing & installing...

5.1 Student Book © 2005 Propane Education & Research Council

5.1

Designing & Installing Dispenser

Transfer Systems

• Consult local jurisdictions for applicable codes, standard

and legal requirements

• This material is not an exhaustive treatment of the subject

and does not preclude other procedures to enhance safe

LP-gas operations

• This publication is not intended nor should it be construed

to

1. Set forth procedures which are the general custom or

practice in the propane industry

2. Establish the legal standards of care owed by

propane distributors to their customers

3. Prevent the reader from using different methods to

implement applicable codes, standards or legal require-

ments.

CETP Program Disclaimer

• This training material was designed to be used as a

resource only and does not replace federal, state, local,

or company safety rules.

• The user of this material is solely responsible for the

method of implementation.

• The Propane Education and Research Council, the

National Propane Gas Association and Industrial Training

Services, Inc. assume no liability for reliance on the

contents of this training material.

• Issuance of this material is not intended to nor should it be

construed as an undertaking to perform services on be-

half of any party either for their protection or for the

protection of third parties.

CETP Program Disclaimer

5.1.1 Student Book © 2005 Propane Education & Research Council Page 1

To successfully plan the installation of a propane dispenser, select appropriate dispenser configuration and associated equipment, and to determine the proper location for the dispenser, it is necessary to examine the installation site and to fully understand how the disperser will be used and operated.

In this module you will:

1. Identify the types of containers to be filled at the dispenser

2. Determine the dispenser tank size and orientation

3. Determine the location for the dispenser and other factors affecting dispenser component selection

5.1.1Determining Disperser Application, Operating Requirements & Proper

Location


Identifying the types of containers to be filled at the dispenser

Figure 1. Vapor Cylinder & Motor Fuel Cylinder

Determining

• the types of propane containers that will be serviced

• a good estimate of the volume of propane usage on a weekly basis

will lead to a better dispenser design and installation while avoiding wasted time and expense that can arise out of poor pre-installation planning.


Figure 2. Sample Disperser Installation

Planning Form (Front)


Determining the dispenser tank size and orientation

Courtesy Clean Fueling Technologies

Figure 3a. Vertical Motor Fuel DispenserWith Pump & Meter Cabinet

Courtesy Meeder Equipment Co.

Figure 3b. Horizontal DispenserWith Pump & Meter Cabinet


Figure 4. Sample Disperser Installation Planning Form (Back)

Selecting the proper sized tank(s) for the dispenser installation is crucial for cost-efficient delivery routing and reliable service.

Appropriate sized tank(s) is also important where local jurisdictional authority approval or fire safety analysis and/or installation permits are required.


Determining the location for the dispenser and other factors affecting dispenser component selection

NFPA 582004

ASME stationary tank separation distance requirements are listed in Table 6.3.1

Note: Distancesare for aggregatewater capacity.


NFPA 582004

ASME stationary tank separation distance requirements are listed in Table 6.3.1

Note: Distances are for aggregate water capacity.


NPFA 58 Provisions for Vertical Tanks

Compliance requirements:

• Consultation with the tank manufacturer and strictly following their prescribed installation instructions

• Knowing the prevailing local conditions with respect to earthquake potential and the effects of high winds

• Communicating these actions to the local authority having jurisdiction during pre-installation planning


Figure 5. Probabilistic Seismic Hazard Maps, U.S. Geological Surveyhttp://eqhazmaps.usgs.gov/html/graphics.html


(Support I-Beams)

Courtesy of Manchester Tank

Figure 6. Vertical Tank Specification Drawings & Foundation Partial Detail(Not the manufacturer’s actual foundation plan.)


Identifying available site electrical supply specifications

The planning and installation of electrical service to a propane dispenser should be coordinated with the installation site owner or operator and a licensed electrical contractor.

1. Is the available power supply single-phase or 3-phase?

2. Where is the connection point to the existing power supply;are there open breaker panel slots for the dispenser?

3. Will existing electrical connections need to be modified to meet NFPA 58 requirements for ignition source control?

4. Does the location have a history of electrical service problems due to low-voltage, “brown-outs” or other factors?


As the dispenser installation planning nears completion, attention should be given to other equipment and accessories needed for dispenser operating requirements.

5.1.1 Student Book © 2005 Propane Education & Research Council Pages 10-12

Time to See If You Got the Key Points of This Module…

• Complete the Review on pages 10 & 11.

• See if you are ready for the Certification Exam by checking off the performance criteria on page 12.

5.1 student book © 2005 propane education & research council 5.1 designing & installing...

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