Play manufacturer video for Fisher 3990 Atmospheric Vacuum Breaker, 45° Ledge Mount, 1/2 in Male Inlet
$223.97
The Fisher 3990 is an atmospheric vacuum breaker designed for 45° ledge mounting with a 1/2 in male NPT inlet.
System limits are 40°F minimum to 140°F maximum temperature and 200 psi maximum static pressure.
Product Weight:
3.5 lbAtmospheric vacuum breaker
Provides the atmospheric vacuum breaker function specified for model 3990.
45° ledge mount
Configured for 45° ledge mounting.
1/2 in male NPT inlet
Uses a 1/2 in male NPT inlet.
System limits
Temperature range is 40°F minimum to 140°F maximum, with 200 psi maximum static pressure.
Product type
Atmospheric vacuum breaker
Mounting
45° ledge mount
Inlet
1/2 in male NPT
Temperature limit
40°F minimum to 140°F maximum
Pressure limit
200 psi maximum static
Weight
3.5 lb
Certifications & Compliance
Documents
Frequently Asked Questions
The Fisher 3990 is an atmospheric vacuum breaker.
It has a 45° ledge-mount configuration.
It uses a 1/2 in male NPT inlet.
The temperature limit is 40°F minimum to 140°F maximum, and the pressure limit is 200 psi maximum static.
The shipping weight is 3.5 lb.
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