serves as the authorized replacement for AP12562

It is designed for use with preprinted circular charts and standard ink pen configurations

Failures are often caused by diaphragm wear

This is an electronic sensor designed specifically for the digital logic of the L71XX series

minimizing labor time during maintenance calls

Spence Engineering D550 Pilot THPU32HP7Y serves as the authorized replacementThe Spence Engineering D550 Pilot is a heavy duty, spring operated pressure pilot designed to interface with Type E and Type C main valves for high accuracy steam regulation. Constructed with a rugged cast iron body, this normally closed pilot is specifically engineered for secondary pressure control in steam heating systems and industrial vapor applications. It features a 5 50 PSI spring range, allowing contractors to field adjust delivery setpoints