Goldstream Portable Pump Head

The GSM13 pumphead in an IEC 71 close-coupled configuration. The smaller displacement sibling to the GSM25, running 3/4 inch NPT ports and scaling from 8 GPM at 1800 RPM up to 14 GPM at 3450 RPM.. When the pumphead wears out, replace it without touching the motor.

Cast iron body, helical cut steel gears, Viton seals, 3/4 inch NPT ports. Fits IEC 71 frame motors with a 14mm keyed shaft. Self priming. No pressure relief valve — the outlet must remain open during operation. Requires an L070 shaft coupler, sold separately.

Flow Rate and Motor Guide

• 1800 RPM, 8 GPM — Cold motor oil, waste oil. Minimum 3/4 HP.
• 3450 RPM, 14 GPM — Light oils (diesel, warm ATF). Minimum 3/4 HP.
• 3450 RPM, 14 GPM — Heavier oils (cold motor oil). 1 HP to 1.5 HP recommended.

Specifications

• SKU: GSM13
• Mount: IEC 71 Close-Coupled
• Design: Positive Displacement Gear Pump
• Flow Rate: 8 GPM at 1800 RPM, 13 GPM at 2850 RPM, 14 GPM at 3450 RPM
• Self Priming: Yes
• Port Size: 3/4 inch NPT Inlet and Outlet
• Shaft Size: 14mm keyed
• Seals: Viton (high temp)
• Pressure Relief: None, outlet must remain open during operation
• Body: Cast Iron
• Gears: Helical cut carbon steel

What's in the Box

• GSM13 Cast Iron Gear Pumphead (IEC 71 Mount)
• Two (2) 3/4 inch NPT to 1 inch Hose Barbs

Note: Motor, shaft coupler (L070), handle, base, and hoses are not included. This pumphead has no pressure relief valve. Never run against a closed valve or blocked outlet. Oil lubricated only — do not pump water, gasoline, or highly flammable solvents.