Kohler 20--2800 kW manual Natural or LP Gas Fuel Systems

6.7Natural or LP Gas Fuel Systems

Natural and LP (liquified petroleum) gas fuel systems should be designed and installed in accordance with the requirements of NFPA 54, National Fuel Gas Code, and all applicable local codes. Various types of gas fuel systems are available as follows:

DLP Gas Vapor (Figure 6-5 and Figure 6-6)

DLP Gas-Liquid Withdrawal (Figure 6-7)

DCombination Natural Gas and LP Gas (Figure 6-8 and Figure 6-9)

DNatural Gas (Figure 6-10)

DCombination LP Gas or Natural Gas and Gasoline (Figure 6-11)

The engine-mounted components of all these systems are similar and usually include a carburetor, secondary gas regulator, electric gas fuel solenoid shutoff valve, and flexible fuel connector.

2 5

3

1 2 3 4

1. Carburetor 5

2.Secondary regulator

3.Solenoid valve

4.Pressure gauge

5.Primary regulator (supplied by gas supplier or installer)

Figure 6-6 Typical LP Gas Vapor-Withdrawal System

1 2 3 4

1

4

TP-5700-6

1.Primary regulator (supplied by gas supplier or customer)

2.Pressure gauge

3.Solenoid valve

4.Secondary regulator

5.Carburetor

Figure 6-5 LP Gas Vapor Fuel System

1.Carburetor

2.Converter (vaporizer)

3.Solenoid valve

4.LP gas filter (supplied by gas supplier or installer)

Figure 6-7 LP Gas Liquid Withdrawal System

30 Section 6 Fuel Systems TP-5700 7/93