172-65391MA-08 (VS1A) 7 Oct 2021
5
Specifications
DO NOT use for toxic, flammable or otherwise hazardous fluids.
This product is an air vent that discharges air from water piping system.
Use only for water and/or air. This product is for intended use only.
Improper use may result in such hazards as damage to the product or
malfunctions that may lead to serious accident.
WARNING
Install properly and DO NOT use this product outside the recommended
operating pressure, temperature and other specification ranges.
Improper use may result in such hazards as damage to the product or
malfunctions which may lead to serious accidents. Local regulations
may restrict the use of this product to below the conditions quoted.
CAUTION
Use only under conditions in which no freeze-up will occur. Freezing
may damage the product, leading to fluid discharge, which may cause
burns or other injury.
CAUTION
Refer to the product nameplate for detailed specifications.
* Maximum allowable pressure (PMA) and maximum allowable temperature (TMA) are PRESSURE
SHELL DESIGN CONDITIONS,
NOT
OPERATING CONDITIONS.
** Valve No. is displayed for products with options. This item is omitted from the nameplate when there
are no options.
*** This is applicable only during the initial discharge of air. Once the valve closes, it will remain closed
even if the differential pressure is within this range.
Configuration
Nominal Diameter
Maximum Allowable
Pressure*
Maximum Allowable
Temperature (TMA)*
Maximum Differential
Pressure***
Maximum Operating
Temperature
Valve No.**
Production Lot No.
Model
No. Name
1
Body
2
Cover
3
Float
4
Valve Seat
5
Valve Seat Gasket
6
Cover Gasket
7
Cover Bolt
8
Nameplate
9
Connector
10
Screw
11
Spring Washer
12
Guide Plate
