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 550

Pressure Vacuum Relief Valve

Applications

ENARDO’s Series 550 Pressure Vacuum Relief Valve is ideal for routine service for vent-to-atmosphere applications. The Series 550 provides protection against positive or vacuum overpressure, and prevents air intake and evaporative losses of product while helping to contain odorous and potentially explosive vapors. For high-performance applications and severe service, see the ENARDO Series 950 Vent-to-Atmosphere Pressure Vacuum Relief Valve.

Features

• Pressure setting:
  • 0.5 to 16.0 oz./sq. in. (0.5 oz. increments)
  • 1.0 to 26.0 in. H₂0 (0.5 increments)
  • (2.0 to 69.0 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)

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• Review Certifications & Approvals