Pressure Vacuum Relief Valve Model 450

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Model 450 Pressure Vacuum Relief Valves are advanced designs for pipe-away 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-055 Category: Brand:

Available on backorder

Description

Model 450 Pressure Vacuum Relief Valves are advanced designs for pipe-away 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 b y in house maintenance personnel).

 

Valve Setting Range

  • Model number: Model 450
  • Sizes Available: 2″(50mm), 3″(80mm), 4″(100mm), 12″(300mm)
  • Pressure: 2.0 to 127 mbar (with 2.2mbar increments)
  • Vacuum: 2.0 to 86.2 mbar (with 2.2mbar increments)