The Watson McDaniel series W91 direct-operated temperature regulating valve is suited for tanks, process streams, and industrial applications. This valve is noted for its rugged housing, fully-enclosed bellows and internal over-protection temperature feature.

Available in sizes 1/2" - 2" NPT with over 14 temperature ranges
Standard 8' capillary length, available in 12', 16', 20', and 24' lengths for additional cost
Watson McDaniel series W91 direct operating pressure regulating specification sheet
Watson McDaniel series W91 direct operating pressure regulating installation, operation, and maintenance manual