1. General Equipment Identification
- Equipment Name: Rotary Internal Gear Positive Displacement Pump
- Manufacturer: Viking Pump, Inc.
- Primary Application: Liquid Transfer (Loading / Unloading / In-plant Transfer)
- Flow Direction: Bi-directional (Capable of reversing flow by changing motor rotation)
2. Operating & Performance Limits
- Flow Rate Range: 0.5 to 1,600 GPM (0.11 to 363 m³/h) depending on model and speed
- Maximum Differential Pressure: 250 PSI (17 BAR) for standard duty; up to 500 PSI (34 BAR) for high-pressure series
- Viscosity Range: 28 to 2,000,000 SSU (1 to 440,000 cSt)
- Temperature Range: -120°F to +800°F (-85°C to +425°C) with proper construction modification
3. Materials of Construction (Standard Options)
- Pump Housing / Casing: Cast Iron (ASTM A48), Ductile Iron (ASTM A536), Cast Steel (ASTM A216), or 316 Stainless Steel (ASTM A743)
- Rotor & Idler Gears: Iron, Steel, or 316 Stainless Steel (hardened options available for abrasive liquids)
- Shaft: Carbon Steel, Alloy Steel, or 316 Stainless Steel
- Idler Bushing: Carbon-Graphite, Bronze, Hardened Steel, or Tungsten Carbide
4. Shaft Sealing & Leak Prevention
- Packing: Graphite or PTFE packing with adjustable gland
- Mechanical Seal: Component or cartridge single/double mechanical seals (Viton, Kalrez, Buna-N, or PTFE elastomers)
- Sealless Option: Magnetic Drive (Mag Drive) configuration for zero-leakage applications
- Heavy-Duty Option: O-Pro® Barrier Seal system for leak prevention on viscous fluids
5. Drive & Mounting Configuration
- Drive Options: Direct motor speed, Gear reducer (Gearbox), or V-belt drive
- Mounting Type: Foot mounted on a common structural steel or channel steel baseplate
- Coupling: Spacer or non-spacer flexible coupling with OSHA-compliant coupling guard
6. Built-in Features & Connections
- Overpressure Protection: Integral (internal) pressure relief valve on the pump head (Return-to-Suction type)
- Port Configurations: 90-degree or 180-degree (In-line) ports
- Connection Types: NPT threaded, ANSI Class 150 Flanged, or ANSI Class 300 Flanged
- Temperature Control: Optional steam or hot water jackets on casing and head for melting solidifying liquids
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