Specifications
Stock Number:
Service Pressure:
System Connection:
Temperature Range:
Dimensions:
Weight:
For use under U.S. Patents
8,720,591, 9,144,700, 9,186,533
and 9,610,466
PAV-D
Up to 175 PSIG (12 Bar)
1” NPT Male
40°F - 120°F (4.5°C - 49°C)
13.5” (W) x 7.5” (H) x 4.25” (D)
343mm (W) x 191mm (H) x 108mm (D)
7 Lbs. (3.1 Kg)
General Description
The ECS Protector Manual Vent provides oxygen venting in dry pipe fire sprinkler systems. As a fire sprinkler
system is filled with a continuous supply of nitrogen gas from the ECS Protector Nitrogen Generator System,
the ECS Protector Manual Vent allows oxygen rich gas to be vented from the fire sprinkler system. Over a
short period of time the ECS Protector Manual Vent will almost completely remove oxygen from the fire
sprinkler system (<2% oxygen).
The ECS Protector Manual Vent must be installed as shown on the engineering design documents. If a
location is not specified install the ECS Protector Manual Vent on the fire sprinkler system riser on the system
side of the main control valve. The vent is also installed to provide source gas when used in conjunction with
the ECS Protector SMART Gas Analyzer (SGA-1).
The ECS Protector Manual Vent is equipped with a levered float valve that allows oxygen to discharge but
prevents liquid water from leaking through the restricted venting orifice in the event that water enters the fire
sprinkler system. A backpressure regulator is also included to prevent total system depressurization from the
vent assembly.
The restricted venting orifice allows oxygen to be vented from the fire sprinkler system at a controlled rate to
achieve a minimum nitrogen concentration of 98%. A special fitting is provided to receive 5/32” tubing when
the vent is used in conjunction with the ECS Protector Permanent Gas Analyzer.
April 2020 - Rev 2
1
ECS PROTECTOR
MANUAL VENT
PAV-D
Engineered Corrosion Solutions • 11336 Lackland Road St. Louis, MO 63146 • Phone: 314.432.1377 • www.ecscorrosion.com
There are two models of the ECS Protector Oxygen Removal Vent,
the PAV-D and the PSV-D (PSV-DE) The units both operate as
described above but the PSV-D (PSV-DE) model includes an
electronic solenoid valve wired to a control panel that automatically
closes the vent once the desired nitrogen concentration has been
reached. The control panel is also equipped with an on/off switch
and vent button to provide a means to allow the venting process to
restart should oxygen be reintroduced into the fire sprinkler system.
