Pressure Vacuum Relief Valve Model 550

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Model 550 Pressure Vacuum Relief Valves are advanced designs for vent-to-atmosphere applications. This relief valve provides protection against positive or vacuum over pressure and prevents air intake, evaporative losses of product and helps contain odorous and potentially explosive vapors.

Technical Data

Sesco SKU:tp-054 Category: Brand:

Available on backorder

Description

Model 550 Pressure Vacuum Relief Valves are advanced designs for vent-to-atmosphere applications. This relief valve provides protection against positive or vacuum over pressure and prevents air intake, evaporative losses of product and helps contain odorous and potentially explosive vapors.

The pressure vacuum relief valve maintains a tight seal until system pressure or vacuum exceeds the set pressure of the valve. When over pressure occurs, the weighted pallet lifts, breaking the seal between the seat and pallet, allowing vapors to pass through the valve orifice and relieving the pressure or vacuum buildup. The valve reseals upon relief and remains sealed.

 

Features & Benefits

• Externally coated with Ameron Amershield Aliphatic polyurethane coating at no additional cost Provides excellent chemical, impact and abrasion resistance.
• 316 Stainless Steel pallet as a standard for additional corrosion resistance as opposed to other manufacturers that offer aluminum pallets. FEP Teflon pallet seals for long service life to meet any type application.

• High flow capacity maximizes cost effectiveness.
• Fully field replaceable pallet and seat assemblies without need for special tools or complex procedures which eliminates the need to send out for rebuilding or total valve replacement (Can be maintained by in house maintenance personnel).

 

Valve Settings Range

  • Sizes Available: 2″ (50 mm) , 3″ (80 mm), 4″ (1 DO mm) through 12″ (300 mm).
  • Pressure: 2.0 to 69.0 mbar 2.0 (with 60.3 mbar increments)
  • Vacuum: 2.0 to 79.7 mbar (with 2.2 mbar increments)