Y690VB Series
2
Specifications
Body Sizes
NPS 3/4 or 1 (DN 20 or 25)
End Connection Styles
(1)
See Table 2
Maximum Allowable Inlet (Positive) Pressure
(2)
150 psig (10,3 bar)
Vacuum Control Pressure Ranges
(2)
See Table 1
Maximum Outlet (Casing) Pressure
(2)
Full Vacuum
Maximum Emergency Outlet Pressure to Avoid
Internal Parts Damage
(2)
150 psig (10,3 bar)
Spring Case Connection
1/4 NPT
Orifice Size
1/4 or 1/2-inch (6,4 or 13 mm)
Change in Vacuum Control Pressure
to Wide-Open
(2)
See Table 1
Pressure Registration
Type Y690VB:
Internal
Type Y690VBM:
External
Temperature Capabilities
(2)
Nitrile (NBR):
-20° to 180°F (-29° to 82°C)
Fluorocarbon (FKM):
40° to 300°F (4° to 149°C)
Ethylenepropylene (EPDM):
-20° to 275°F (-29° to 135°C)
Perfluoroelastomer (FFKM):
-20° to 300°F (-29° to 149°C)
Approximate Weight
19 pounds (9 kg)
Figure 2. Type Y690VB Operational Schematic
VACUUM
PUMP
VACUUM
BEing
LIMITED
POSITIVE PRESSURE OR ATMOSPHERE OR A
LESSER VACUUM THAN THE ONE BEING LIMITED
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
B2672
1. End connections for other than U.S. standards can usually be provided; consult the local Sales Office.
2. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
