Guide to Choosing Tecalemit Pneumatic Pumps for Fluid Transfer

Many fluid transfer systems underperform due to improper pneumatic pump selection. Understanding core parameters—particularly pump ratio—is essential for maximizing efficiency in diverse industrial applications.

The pump ratio, representing the relationship between air piston area and hydraulic piston area, determines a pump's pressure amplification capability. This critical specification dictates the output pressure achievable from a given air supply:

• 1:1 ratio: Delivers equal output pressure to input (100 psi input yields 100 psi output)
• 3:1 ratio: Triples input pressure (100 psi becomes 300 psi)
• 5:1 ratio: Quintuples input pressure (100 psi generates 500 psi)

Ideal for transferring light fluids like lubricants and cleaning agents over short distances (under 30 meters). These cost-effective units offer simplicity and reliability in low-pressure applications.

The versatile choice for medium-viscosity fluids (hydraulic oils, gear lubricants) with moderate transfer distances (approximately 45 meters). Provides optimal balance between pressure and flow rate for general industrial use.

Essential for viscous materials (heavy greases, sealants) requiring extended transfer distances (60+ meters). Delivers sufficient pressure to overcome system resistance in centralized lubrication or elevated delivery systems.

Pump capacity represents the volumetric flow rate, but actual performance depends on multiple variables:

Manufacturers specify capacity under standardized conditions:

• 87 psi (6 bar) air supply
• SAE 30 test oil
• 20°C ambient temperature
• Unrestricted outlet

Seven key elements influence practical capacity:

1. Pump Design: Dual-action pumps typically deliver 1.5-1.8× the capacity of single-action models
2. Fluid Properties: Viscosity variations with temperature significantly impact flow characteristics
3. Air Supply: Pressure fluctuations directly affect output performance
4. System Configuration: Single-line versus centralized distribution networks present different flow dynamics
5. Piping Geometry: Diameter reductions and extended runs increase hydraulic resistance
6. Elevation Changes: Vertical lift requirements demand additional pressure
7. Component Selection: Fittings, filters, and accessories contribute to system losses

• Fluid characteristics at operating temperature
• Required flow rate and pressure specifications
• Total system head requirements (including elevation and friction losses)
• Conduit sizing and material compatibility
• Environmental operating conditions

Proper selection based on these parameters ensures optimal system efficiency, reduced operational costs, and enhanced productivity. Technical consultation during the specification process helps identify the most appropriate pump configuration for each unique application.