| Items |
 Model 541 Bronze Safety Valves for Air and Non-hazardous Gas Service |
Model 542 Bronze Safety Valves for Air and Non-hazardous Gas Service |
Model 548 Bronze Safety Valves for Air and Non-hazardous Gas Service |
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| Description | Brass body and seat. | Brass body and seat. With Viton ball or flat seal. | Brass body and seat. With SS ball or flat seal. | |||
| Pressure Limit | 3 to 200 psig | 3 to 200 psig | 3 to 400 psig | |||
| Temperature Limit | -40°F to 200°F | -10°F to 300°F | -60°F to 400°F | |||
| Manufacturer | North American Safety Valve | |||||
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