The Series 629 wet/wet differential pressure transmitter with optional 3-way valve is the ideal product for monitoring differential pressures on HVAC equipment such as water chillers, coils, heat exchangers, and pumps. This optional integral valve manifold simplifies installation by allowing the installer to isolate or combine the pressures on the high and low pressure ports. The valve manifold is also an excellent maintenance tool by providing the capability to perform maintenance on the transmitter without interrupting the process. Bleed ports are provided on the valve manifold to alleviate possible trapped air in the lines. The 3-way valve manifold is machined entirely from brass and is completely assembled to the 629 transmitter when ordered together.

Dwyer Instruments Inc.
P.O. Box 373
Michigan City, IN 46361
Toll-free: (800) 872-9140
Fax: (219) 872-9057