Hamilton Sundstrand Company Gas Fuel Metering Valve HFG2.0 User Manual

 

4 HFG2.0 

USER 

GUIDE

 

 

 

 

North American Certifications 

CSA Class I, Div 1, Group B, C, D; T4 

 

European Directive Compliance (CE Mark) 

 

EEx d, IIB+H

2

; T4  

97/23/EC Pressure Equipment Directive (PED)  
94/9/EC Potentially Explosive Atmospheres (ATEX)    02ATEX6051X 
98/37/EC Machinery Directive  
89/336/EEC Electromagnetic Compatibility Directive (EMC) 

 

 

 

Actuator Housing 

6061-T6 Anodized Aluminum 

 

Valve Housing 

6061-T6 Anodized Aluminum 
316 Stainless Steel (Optional) 

 

Conduit Union 

Zinc Plated Steel 

 

Seals 

Viton and Teflon 

 

Connectors Aluminum 

 

9.7 in x7.7 in x 25.4 in 

 

100 lbs. Max (Aluminum Valve Housing, 3-piece) 
85 lbs. Max (Aluminum Valve Housing, 1-piece) 
190 lbs. Max (Stainless Steel Valve Housing, 3 piece) 

 

 

This section describes proper HFG2.0 installation. Ensure compliance 
with the factory recommendations. 

 

 

The HFG2.0 installs as part of a gas fuel system as shown in Figure 1-1. 
In this arrangement, the HFG2.0 is located downstream from two 
normally closed gas shut-off valves. 

An alternate arrangement is shown in Figure 1-2. In this installation, the 
HFG2.0 is located between two normally closed gas shut-off valves. 

 

For efficient valve operation, filter the fuel through a 40-micron absolute 
filter before it reaches the valve. This extends the time between routine 
maintenance. Locate the fuel filter as close as possible to the valve 
INLET.