Designed as a genuine PROTECH OEM replacement part

serves as the authorized replacement for AP12562

You must select and install a compatible Parker coil based on your system's voltage requirements (e

The dual-range functionality provides precise setpoint adjustments

Failures are often caused by diaphragm wear

Spence Engineering D550 Pilot THPU32HP7Y Designed as a genuine PROTECHThe 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