Description
The 197 is an aluminium pressure vacuum valve normally used in Stage I vapor recovery systems for underground storage tanks. It regulates internal tank pressure and protects against overpressure conditions while helping to reduce fuel evaporation and environmental pollution. The valve features Viton® seals, brass poppets, and stainless steel springs and support components.
Features
- Regulates hydrocarbons storage tank pressure
- Reduces evaporation for environmental protection and product conservation
- Stage I vapor recovery compliant
- ATEX Directive 2014/34/EU and harmonized standard compliant
- Viton® seals for chemical compatibility
- Brass poppets; stainless steel springs, screws, bolts, and support
- Aluminium body and cap
- Available pressure settings: 10, 30, 50 mbar
- Available vacuum settings: −2.5, −10 mbar
- Female BSPP threaded connections from 1″” to 2″”
Applications
- Underground storage tank vapor recovery systems (Stage I)
- Hydrocarbon storage tank pressure regulation
- Installations requiring evaporation control and overpressure protection






