62-VNA 系列常差分继电器，62-VNA
62-VNA 系列常差分继电器简单介绍
The ability to maintain constant-differential pressure drop across a built-in needle valve ensures a constant volumetric flow rate Maintains constant bubbling rate in liquid level applications,eliminating the problems of typical conventional bubbling systems The ability to produce reasonable purge rates eliminates the need for a supply regulator Epoxy powder coating provides improved corrosion resistance
62-VNA 系列常差分继电器（Constant-Differential Relays）的详细介绍
Features & Benefits
The ability to maintain constant-differential pressure drop across a built-in needle valve ensures a constant volumetric flow rate
Maintains constant bubbling rate in liquid level applications,eliminating the problems of typical conventional bubbling systems
The ability to produce reasonable purge rates eliminates the need for a supply regulator
Epoxy powder coating provides improved corrosion resistance
Description
The Series 62-VNA Constant-Differential Relays serve as air-flow controllers maintaining a constant air purge for each setting of an integral needle valve.
By maintaining a constant-differential pressure drop across a built-in needle valve (for any flow setting up to 2.1 cu. ft. of air per hour), Series 62 Relays ensure a constant volumetric rate of flow, regardless of variations in process or supply pressure.
