In-Line Vent Valve Model 800	|	Model 850	|	Model 860
In-Line Vent Valve Model 800-PSO	|	Model 851	|	Model 960
End-of-Line Stack Vent Valve Model 900	|	Model 950	|
	|	Model 951	|	Model 850/MVC & 952/MVC
Model 450	|	Model 952	|
Model 550	|	Model 953	|	Pressure/Vacuum Relief Valve with Flame Arrestor

ENARDO Series 450

Pressure Vacuum Relief Valve

Applications

ENARDO’s Series 450 Pressure Vacuum Relief Valve is the ideal option for routine service in pipe-away applications. The Series 450 provides protection against positive or vacuum overpressure, prevents air intake and evaporative losses of products, and helps contain odorous and potentially explosive vapors. For high-performance applications and severe service, see the ENARDO Series 850 Pipe-Away Pressure Vacuum Relief Valve.

Features

• Pressure setting:
  • 0.5 to 20.0 oz./sq. in. (0.5 oz. increments)
  • 1.0 to 25.5 in. H₂0 (0.5 increments)
  • (2.0 to 87.0 mbar – 2.2 mbar increments)
• Vacuum setting:
  • 0.5 to 10.5 oz./sq. in. (0.5 oz. increments)
  • 1.0 to 15.5 in. H₂0 (0.5 in. increments)
  • (2.0 to 44.0 mbar – 2.2 mbar increments)
• Housing material: cast aluminum, carbon steel and stainless steel
• Size: 2” (50 mm) through 12” (300 mm)

• Review Data Sheet (PDF)
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• Review Certifications & Approvals