Straight Pattern/OS&Y Flat glass Gage Valves

1500 lb. ANSI rating - Pressures to 4000 psi @ +100°F (27600 kPa @ +38°C)
Temperature Ranges from -20°F to +750°F (-29°C to +399°C)

The 500 series includes models 520R and 530R with these standard features:

Straight pattern
Outside screw and yoke
Solid shank vessel connection
Gage connection
Model 520R - Union
Model 530R - Rigid
Ball Check Shutoff
Threaded renewable seat
Backseating stem

A variety of optional features are available when specified.

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 conform to AISI or ASTM Specifications.

ASME Boiler Code

Series 500 valve sets that are acceptable for ASME Boiler Code are available as an option. Valve sets with this option are supplied with ball check shutoffs omitted.

Center-to-Center Dimensions
Model	Dimension X Inches (cm)	Dimension Y Inches (cm)
520R	6-3/8 (16.8)	4-1/8 (11.1)
530R	4-3/8 (11.7)	2-1/8 (6.0)

For Standard/Optional Features, click here.