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Figure 10

High Capacity Cast Iron Safety Relief Valves


3/4 x 1 to 3 x 3 in. (20 x 25 to 80 x 80mm)


Series Figure 10 High Capacity Iron Cast Safety Valves are ASME Section IV safety relief valves designed for industrial and commercial low pressure steam heating boilers and associated equipment. Standard pressure settings for saturated steam service are 5 thru 15psi. The Figure 10 valve features tight shutoff, sharp popping and closing action and a high degree of repeatability. The valve inlet and body are one integral casting assuring proper alignment of disc, seat and spindle for smooth action. The disc is located by a disc guide which in turn is held in place by a zinc plated wave spring. The entire assembly is contained by a combination bonnet/compression screw. The simplicity of the design means dependability and low cost.

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Disclaimer: Watts product dimensions in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

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