Model 5400
Pilot Operated Pressure Only Vent To Atmosphere
OBJECTIVE
The Model 5400 is designed for
use on atmospheric and low-pressure tanks to reduce environmental emissions and
product losses, when operating close to the set point.
TECHNIQUE
Under normal operating
conditions, the pallet assembly is closed providing a tight seal. In the event
the tank pressure increases due to product movement into the tank or thermal expansion
of the product and vapors, the downward force on the pallet assembly increases
providing a tighter seal. When the tank pressure reaches the set pressure of
the pilot, the pilot assembly opens eliminating the additional downward force
on the pallet assembly. The "full" tank pressure pushing upward on
the pallet assembly will cause the main valve to open. Full fl ow will be
achieved at no more than 10% overpressure. Once the overpressure is relieved
the pallet assembly will reset providing a tight seal
BODY SIZE: 2", 3", 4", 6", 8", 10",
12", 16", 18", 20", 24"
5400 TANK VENT - PILOT OPERATED