Straight Pattern Tubular Glass Gage Valves

Pressures to 500 psi @ +100°F (3400 kPa @ +38°C)
Temperature Range from -20°F to +500°F (-29°C to +260°C)



The N7 series includes models N7A and N7B with these design features:

A variety of optional features are available when specified.

Combinations of optional features and materials are available. Each combination is designated by the model number in the Features table. Optional materials can be specified for the valve body and trim. (Trim consists of the stem, stem packing retainer and ball check). Standard and optional materials are available for service as described by AISI or ASTM Specifications.

ASME Boiler Code

Series N7 valve sets that are acceptable for ASME Boiler Code are available as an option. These valve sets have a vertical rising ball check shutoff in the lower valve and a horizontal ball in the upper valve.

Center-to-Center and
Guard Rod Dimensions

Dimension X
Dimension Y
All Models 2





For Standard/Optional Features, click here.