Emerson Y692VB Datenblatt PDF herunterladen (Seite 3)

Bulletin 71.3:Y692VB

INLET PRESSURE

CONTROL PRESSURE (VACUUM)

ATMOSPHERIC PRESSURE

Type Y692VB

B2579

VACUUM

BEING LIMITED

VACUUM

PUMP

























Figure 2. Type Y692VB Operational Schematic

INLET PRESSURE

CONTROL PRESSURE (VACUUM)

ATMOSPHERIC PRESSURE

Type Y692VB

B2579

VACUUM

BEING LIMITED

VACUUM

PUMP



An increase in vacuum (decrease in absolute pressure)

beyond the setpoint registers on the diaphragm,

opening the disk. This permits body inlet pressure to

enter the system and restore the controlled vacuum

to the setpoint. On the Type Y692VB, the pressure

at the regulator body outlet registers directly into the

diaphragm casing. The Type Y692VBM has a control

line connecting the diaphragm casing to the vacuum

being controlled and an O-ring stem seal blocking the

throat allowing for registration only through the control

line connection (outlet body pressure may or may not

be the same as the pressure in the diaphragm casing).

Installation

The versatility of the Y692VB Series vacuum breakers

permits a wide variety of installations. The body may

be mounted in any position (360° rotation possible)

relative to the spring and diaphragm cases by loosening

the union nut and rotating the diaphragm casing. The

spring case can be rotated to t the orientation required.

Any mounting position provides excellent performance.

When exposed to the weather, the spring case port

should be protected by an optional umbrella vent or

should be pointed downward to allow condensate to

drain. On indoor installations, this port should be piped

outdoors if used in hazardous gas service.

1 2 3 4 5 6 7 8

Kommentare zu diesen Handbüchern

Keine Kommentare

Emerson Y692VB Datenblatt Seite 3

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Nein Emerson Y692VB