Caleffi 519502A Differential Pressure Bypass ValveThe Differential Pressure Bypass Valve is the essential solution for protecting fixed speed circulating pumps. The Caleffi 519502A model features a 3 4 inch nominal size brass body designed for durable performance, with a temperature range of 32 to 230 Deg F and a pressure rating up to 150 PSI. This by pass valve helps balance pressure differences and prevent pump overload in domestic and radiant heating systems. Constructed for reliability, the valve

Designed to fit Bradford White 229-51230-06 installations

DPDT contact arrangement to handle two circuits

Compact dimensions: 3-1/2 in W x 2-3/16 in D x 2-1/4 in H

The Caleffi Z141000 is a 24V normally open valve actuator with 6-inch wire leads

It delivers dependable valve positioning for reliable zone heating and cooling

Enclosure & material: NEMA 1

Self-closing

The universal design works across compatible equipment

Universal compatibility with 201CRD/102CRD/EZ/99FRD oil burners

The module's rugged construction supports long-term reliability in varying temperatures

one-stop replacement

safe performance across a wide range of applications