A7 PUMP

Reliability and Waterless Sealing for Tough Chemical Applications

The Wilfley A7 pump meets and exceeds ANSI B73.1 standard. Its robust design, reliable seal, and metallurgy offer an unmatchable solution for demanding industrial and mining applications.

Main Benefits

  • Waterless Sealing Technology
  • Leakless seal operation
  • Operational abuse tolerant
  • Product dilution eliminated
  • Wear resistance material of construction
  • Heavy-Duty construction
  • Reduces maintenance cost and maximizes production time through increased mean tiem between maintenance (MTBM)
  • Excelent Solids handing capabilities
  • Longer L10 bearing life

Main Applications

  • Clean and contaminated liquids
  • Abrasive and corrosive applications
  • Crystalizing solutions
  • Uploading and downloading
  • Highly realiable equipment applications
  • Viscous liquids

 

Key Characteristics

Capacities:
Flows up to 5,000 gpm (1,136 m3/hr)

Heads:
Head up to 700 ft (213 m)

Max Working Pressure:
350 Psig (24 Bar)

Max Temperature:
400 °F (205°C)

Discharge Sizes:
From 1″ (25 mm) to 8″ (203 mm)

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Heavy duty case design with 150 lb. flanges

(300 lb. flanges available)

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Comprehensive Hydraulics

Available to meet your needs

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Pressure / temperature balance holes

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Opti-expeller

Provides superior dynamic sealing with zero operational leakage

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Solidlock® seal

Engineered for reliable static sealing

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Seal wash out capability

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Robust shaft with L3/D4 ratios

Minimized deflections and increases seal life and relability

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Frame bracked

Designed to protect bearing unit from pumpage (duplex stainless steel optional)

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Convenient lifting point

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Large sight glasses

On both sides to easy verify oil level

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303SS labyrinth seals

Prevent oil contamination

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Easy clearance adjustment

Via external adjustment bolts

Waterless Sealing: Wilfley’s Technological Advantage

The Wifley Waterless Seal Technology is proven design combining a dynamic and static seal, that excels in demanding applications and is trusted by companies all over the world.

Materials Options

  • Duplex Stainless Steels
  • Austenitic Stainless Steels
  • Nickel Alloys
  • High-Chrome Hard Irons

Seal Options

  • Wilfley Waterless Seal Technology
  • Expeller with Packing
  • Mechanical Seal
  • Solidlock
  • Drylock II and III

A7 Chemical Pump Performance Range Capacities

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A7

Frame 1

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A7

Frame 2

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A7

Frame 3

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A7

Frame 4

Precision Engineering, Proven Reliability

The A7 pumps on the right are located in the Dominican Republic in an alcohol manufacturing plant. The Wilfley Waterless Seal Technology eliminates product dilution which saves money and increases alcohol production in this facility.

 

Contact Wilfley for detailed specs, case studies, pricing and customized solutions along with answers to all your questions. We are here to help you have the best options for your unique situation and operating budget.