• The first step in selecting a valve is determining its function. • Review Cv or pressure drop when considering one valve versus another. • Don’t overlook maintenance requirements when specifying a ...

When refrigeration systems are exposed to low ambient conditions, the condensing pressure (head pressure) will fall. If the head pressure gets too low, the metering device will not have enough ...

This article deals with low ambient head pressure controls containing charged domes. Their function is to keep a proper condensing pressure at the metering device for proper feeding of the evaporator.

Miniature diaphragm pumps and valves can be tailored to meet market objectives. Photo by RONI RAMOS The increased demand for medical therapies and treatments to be administered at home—or even on the ...

Our company is getting low and unpredictable cycle life out of our diaphragm valves. This problem has caused us to implement standard operating procedures for frequent replacement of the diaphragms, ...