This Armstrong 816011-111 is a standard circulating pump flange kit designed for easy maintenance and installation on compatible in-line pumps. The flanges are constructed from durable cast iron and feature 1-1/4 inch female NPT pipe connections with an EPDM gasket for a reliable seal. This two-pack kit includes all necessary hardware for connecting pumps to piping systems without shutting down flow. It is compatible with several Armstrong pump series including Astro 2 Design Envelope Compass E.2 and S&H models.

Attribute	Details
Brand	Armstrong Pumps
Model Number	816011-111
Type	Circulating Pump Flange
Key Spec	1-1/4 In FNPT
Material	Cast Iron
Gasket Material	EPDM
Flange Type	Standard
Pipe Connection	1-1/4 Inch Female NPT
Mounting Holes	2
Bolt Hole Diameter	1.5 Inches
Max Ambient Temperature	225 °F
Compatible Pump Type	In-Line Circulating Pump
Compatible Brand	Armstrong
Included Components	Flanges Hardware Kit
Number of Flanges	2
Country of Origin	USA
Package Quantity	1 Kit