GNXH Series Sliding Vane Pumps

Innovative, Reduced-Speed Positive Displacement Pump for Non-Corrosive Liquids and Petroleum Products

Introducing a standout from the Iron Line of sliding vane pumps, these Blackmer® models are uniquely designed as the only alignment-free, low-speed positive displacement pumps on the market. Perfect for both mobile and stationary uses, the GNX Series enhances the trusted features of the legacy GX Series by integrating a commercial-grade, single-stage gearbox. This advanced gearbox is strategically placed between the motor and pump, secured with a permanent dowelled connection that establishes a robust link between the system's high-speed and low-speed sections. This design eliminates the need for realignment during initial installation or after maintenance, providing operators with increased reliability. Additionally, the GNX composite baseplate offers exceptional surface flatness, and excellent vibration damping, and reduces installation expenses.

The GNX  Series pumps are versatile and engineered to efficiently manage a variety of non-corrosive, clean industrial liquids and petroleum products. Available in sizes 2, 2.5, 3, and 4 inches, the GNX Series features a 90° port orientation.

Features and Benefits

• Alignment-Free, Low-Speed Operation: Designed to eliminate the need for realignment, these pumps feature a reduced-speed mechanism that minimizes downtime and simplifies maintenance.
• Durable Gear Reducer: Equipped with a robust, commercial-grade gear reducer offering expanded ratio options.
• Coupling-Free Design: Say goodbye to traditional couplings with this innovative setup.
• Extended Seal Life: The rotor is retained between bearings, enhancing the longevity of mechanical seals.
• Compact and Efficient: The close-coupled, inline design ensures a small footprint.
• Versatile Porting Options: Choose between 90° and 180° porting configurations to suit your needs.
• Corrosion-Resistant Baseplate: Features a pre-grouted composite baseplate with exceptional flatness (0.002” per foot) and 24 times the vibration damping of steel.

Advantages of Sliding Vane Technology:

• Self-Adjusting Design: The unique sliding vane pump design compensates for wear, maintaining flow rates consistently.
• Superior Self-Priming: Offers excellent self-priming and dry-run capabilities.
• Reliable Performance: Ensures sustained performance with trouble-free operation.
• Easy Maintenance: Vanes can be replaced without removing the pump from the piping system.
• High Suction Lift: Provides efficient suction lift and line-stripping capabilities.
• Cost-Effective: Low maintenance requirements lead to reduced life-cycle costs.