MC307BTWV3 - PV THRD.SP 7#VSK8V

MC 307 Pressure Relief Vent
The MC 307 Pressure Relief Vent is a stainless steel,
pressure actuated unit that is engineered to limit excessive
internal pressure to 130 percent of tank design. The
standard model vent set at 25 PSIG will exhaust 26,700
SCFH at 32.5 PSIG and conforms to the emergency
venting requirement code for MC 307 tanks having a total
exposed surface area up to 700 square feet.
The stainless steel valve seat is equipped with a
replaceable Tef-O-Sil O-Ring. The unit doubles as an
unloading device, since the valve body is tapped 3/4”
NPT to accommodate the addition of inlet fittings for
air unloading of transports. Provision is also made for a
pressure gauge to be attached to the vent body.
An optional incorporation of a small vacuum section in
the valve seat is also available upon request. It should
be noted that this section, due to its limited size, may
not be adequate enough to prohibit tank implosion. For
additional vacuum protection, refer to “Girard Magnetic
Vacuum Breakers” for tank transports.
The entire vent is designed to be easily removed from the
tank vehicle for inspection and cleaning.