Pressure Vacuum Relief Valve

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450 PVRV

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.

Features

  • Pressure setting:
    o 0.5 to 20.0 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 25.5 in. H20 (0.5 increments)
    o (2.0 to 87.0 mbar – 2.2 mbar increments)
  • Vacuum setting:
    o 0.5 to 10.5 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 15.5 in. H20 (0.5 in. increments)
    o (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)

Technical Specs
Data Sheets

550 PVRV

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.

Features

  • Pressure setting:
    o 0.5 to 16.0 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 26.0 in. H20 (0.5 increments)
    o (2.0 to 69.0 mbar – 2.2 mbar increments)
  • Vacuum setting:
    o 0.5 to 10.5 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 15.5 in. H20 (0.5 in. increments)
    o 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)

Technical Specs
Data Sheets

800 Inline Vent Valve

Applications
ENARDO Series 800 In-Line Vent Valves prevent the escape of light ends of crude by maintaining pressure in the storage tank. This valve is installed directly into the vent line exhaust.

Features

  • Pressure setting: 1.0 to 16.0 oz./sq. in. (0.5 increments) (4.3 to 69.0 mbar, 2 mbar increments)
  • Vacuum setting: 0.4 oz./sq. in. (1.7 mbar)
  • Advanced composite thermoplastic material for superior resistance to corrosion, freezing and sticking
  • Housing material: cast aluminum
  • Size: 2" (50 mm) through 4" (100 mm)
  • Connections: Slip-on flanges to accept pipe end

Technical Specs
Data Sheets

850 PVRV - Pipe Away

Applications
The Series 850 is part of ENARDO's line of high-performance pressure vacuum relief valves and is designed with features that exceed the performance of standard valves on the market, particularly in very cold ambient conditions and applications involving sticky materials. The Series 850 provides pressure and vacuum relief in applications that require hazardous vapors to be piped away rather than released into the atmosphere.

Features

  • Pressure setting:
    o 0.5 to 32.0 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 55.0 in. H20 (0.5 in. increments)
    o (2.0 to 138.0 mbar – 2.2 mbar increments)
  • Vacuum setting:
    o 0.5 to 32.0 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 55.0 in. H20 (0.5 in. increments)
    o (2.0 to 138.0 mbar – 2.2 mbar increments)
  • Advanced PPS composite thermoplastic pallet and seal material for superior resistance to corrosion, freezing and sticking
  • Patented Saber Guide (U.S. Patent No. 591330) valve system provides for smooth valve stroke during operation and reduces valve wear
  • Housing material: aluminum, ductile iron, stainless steel, carbon steel
  • Size: 2" (50 mm) through 12" (300 mm)

Technical Specs
Data Sheets

851 Pressure/Vacuum Relief Pipe Away

Applications
ENARDO’s Series 851 is an advanced design for pipe-away applications. This high-performance valve utilizes the latest technologies to provide protection against positive overpressure, prevent air intake and evaporative loss of product, and help contain odorous and potentially hazardous vapors. The Series 851 offers features that exceed the performance of standard valves on the market, particularly in very cold ambient conditions and applications involving sticky materials.

Features

  • Pressure or vacuum setting:
    o 0.5 to 32.0 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 55.0 in. H20 (0.5 in. increments)
    o (2.0 to 138.0 mbar – 2.2 mbar increments)
  • Advanced PPS composite thermoplastic pallet and seal material for superior resistance to corrosion, freezing and sticking
  • Patented Saber Guide (U.S. Patent No. 591330) valve system provides for smooth valve stroke during operation and reduces valve wear
  • Housing material: aluminum, ductile iron, stainless steel, carbon steel
  • Size: 2" (50 mm) through 12" (300 mm)

Technical Specs
Data Sheets

860 Spring Loaded PVRV Pipe Away

Applications
The Series 860 is part of ENARDO’s line of high-performance pressure vacuum relief valves and is designed with features that exceed the performance of standard valves on the market, particularly in very cold ambient conditions and applications involving stick materials. Designed for pipe-away applications, this valve provides protection against positive or vacuum overpressure, prevents air intake and evaporative loss of product, and helps contain odorous, hazardous and potentially explosive vapors. The 860 valve is designed with a spring-loaded pallet which is designed to handle higher pressure settings than standard dead-weight loaded valves - up to 15 psi for tanks with higher maximum allowable working pressures.

Features

  • Pressure setting:
    o 0.5 to 15.0 psi (0.5 psi increments)
    o 0.5 to 32.0 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 55.0 in. H20 (0.5 in. increments)
    o (2.0 to 138.0 mbar – 2.2 mbar increments)
  • Vacuum setting:
    o 0.5 to 15.0 psi (0.5 psi increments)
    o 0.5 to 32.0 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 55.0 in. H20 (0.5 in. increments)
    o (2.0 to 138.0 mbar – 2.2 mbar increments)
  • Patented Saber Guide (U.S. Patent No. 591330) valve system provides for smooth valve stroke during operation and reduces valve wear
  • Housing material: Aluminum, Carbon Steel, Stainless Steel
  • Size: 2" (50 mm) through 6" (150 mm)
  • Field-replaceable pallet and seat assemblies

Technical Specs
Data Sheets

900 Stack Vent Valve

Applications
ENARDO Series 900 End-of-Line Vent Valve is designed to prevent the escape of light ends of crude by maintaining pressure in the storage tank. The end-of-line vent valve is installed directly on the end of the vent line exhaust. ENARDO’s Series 900 has both pressure and vacuum relief capability.

Features

  • Pressure setting: 1.0 to 16.0 oz./sq. in. (0.5 increments) (4.3 to 69.0 mbar, 2 mbar increments)
  • Vacuum setting: 0.4 oz./sq. in. (1.7 mbar)
  • Advanced composite thermoplastic material for superior resistance to corrosion, freezing and sticking
  • Housing material: cast aluminum
  • Size: 2" (50 mm) through 4" (100 mm)

Technical Specs
Data Sheets

950 PVRV Vent to Atmosphere

Applications
The Series 950 is part of ENARDO's line of high-performance pressure vacuum relief valves and is designed with features that exceed the performance of standard valves on the market, particularly in very cold ambient conditions and applications involving sticky materials. This valve provides pressure and vacuum relief for normal venting requirements while maintaining a safe internal working pressure to prevent the routine expulsion of waste gas to the atmosphere.

Features

  • Pressure setting:
    o 0.5 to 32.0 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 55.0 in. H20 (0.5 in. increments)
    o (2.0 to 138.0 mbar – 2.2 mbar increments)
  • Vacuum setting:
    o 0.5 to 32.0 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 55.0 in. H20 (0.5 in. increments)
    o (2.0 to 138.0 mbar – 2.2 mbar increments)
  • Advanced PPS composite thermoplastic pallet and seal material for superior resistance to corrosion, freezing and sticking
  • Patented Saber Guide (U.S. Patent No. 591330) valve system provides for smooth valve stroke during operation and reduces valve wear
  • Housing material: aluminum, ductile iron, stainless steel, carbon steel
  • Size: 2" (50 mm) through 12" (300 mm)

Technical Specs
Data Sheets

951 Vacuum Relief

Applications
Series 951 is an advanced design for vent-to-atmosphere applications. This high-performance valve utilizes the latest technologies to provide protection against positive overpressure, prevent air intake and evaporative loss of product, and help contain odorous and potentially hazardous vapors. The Series 951 offers features that exceed the performance of standard valves on the market, particularly in very cold ambient conditions and applications involving sticky materials.

Features

  • Pressure setting:
    o 0.5 to 32.0 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 55.0 in. H20 (0.5 in. increments)
    o (2.0 to 138.0 mbar – 2.2 mbar increments)
  • Advanced PPS composite thermoplastic pallet and seal material for superior resistance to corrosion, freezing and sticking
  • Patented Saber Guide (U.S. Patent No. 591330) valve system provides for smooth valve stroke during operation and reduces valve wear
  • Housing material: aluminum, ductile iron, stainless steel, carbon steel
  • Size: 2" (50 mm) through 12" (300 mm)

Technical Specs
Data Sheets

952 Vacuum Relief

Applications
Series 952 is an advanced design for vent-from-atmosphere applications. This high-performance valve utilizes the latest technologies to provide protection against positive overpressure, prevent air intake and evaporative loss of product, and help contain odorous and potentially hazardous vapors. The Series 952 offers features that exceed the performance of standard valves on the market, particularly in very cold ambient conditions and applications involving sticky materials.

Features

  • Vacuum setting:
    o 0.5 to 32.0 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 55.0 in. H20 (0.5 in. increments)
    o (2.0 to 138.0 mbar – 2.2 mbar increments)
  • Advanced PPS composite thermoplastic pallet and seal material for superior resistance to corrosion, freezing and sticking
  • Patented Saber Guide (U.S. Patent No. 591330) valve system provides for smooth valve stroke during operation and reduces valve wear
  • Housing material: aluminum, ductile iron, stainless steel, carbon steel
  • Size: 2" (50 mm) through 12" (300 mm)

Technical Specs
Data Sheets

953 Vacuum Relief Pipe Away

Applications
Series 953 is an advanced design for vent-from-atmosphere applications. This high-performance valve utilizes the latest technologies to provide protection against positive overpressure, prevent air intake and evaporative loss of product, and help contain odorous and potentially hazardous vapors. The Series 953 offers features that exceed the performance of standard valves on the market, particularly in very cold ambient conditions and applications involving sticky materials.

Features

  • Vacuum setting:
    o 0.5 to 32.0 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 55.0 in. H20 (0.5 in. increments)
    o (2.0 to 138.0 mbar – 2.2 mbar increments)
  • Advanced PPS composite thermoplastic pallet and seal material for superior resistance to corrosion, freezing and sticking
  • Patented Saber Guide (U.S. Patent No. 591330) valve system provides for smooth valve stroke during operation and reduces valve wear
  • Housing material: aluminum, ductile iron, stainless steel, carbon steel
  • Size: 3" (75 mm) through 14" (350 mm)

Technical Specs
Data Sheets

960 Spring Loaded PVRV

Applications
The Series 960 is part of ENARDO’s line of high-performance pressure vacuum relief valves and is designed with features that exceed the performance of standard valves on the market, particularly in very cold ambient conditions and applications involving sticky materials. Designed for vent-to-atmosphere applications, this valve provides protection against positive or vacuum overpressure, prevents air intake and evaporative loss of product, and helps contain odorous, hazardous and potentially explosive vapors. The 960 valve is designed with a spring-loaded pallet which is designed to handle higher pressure settings than standard dead-weight loaded valves - up to 15 PSI for tanks with higher maximum allowable working pressures.

Features

  • Pressure setting:
    o 0.5 to 15.0 psi (0.5 psi increments)
    o 0.5 to 32.0 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 55.0 in. H20 (0.5 in. increments)
    o (2.0 to 138.0 mbar – 2.2 mbar increments)
  • Vacuum setting:
    o 0.5 to 15.0 psi (0.5 psi increments)
    o 0.5 to 32.0 oz./sq. in. (0.5 oz. increments)
    o 1.0 to 55.0 in. H20 (0.5 in. increments)
    o (2.0 to 138.0 mbar – 2.2 mbar increments)
  • Patented Saber Guide (U.S. Patent No. 591330) valve system provides for smooth valve stroke during operation and reduces valve wear
  • Housing material: Aluminum, Carbon Steel, Stainless Steel
  • Size: 2" (50 mm) through 6" (150 mm)
  • Field-replaceable pallet and seat assemblies

Technical Specs
Data Sheets