Hollow Shaft 4.0 GPM Pump with Unloader and Chemical Injector

The Comet ZWD Series 1" Hollow Shaft Pressure Washer Pump has a reversible crankcase for easy right- or left-hand mounting and boasts 4.0 GPM, 4000 PSI performance. Integral unloader protects pump from overpressure, while integral chemical injector makes it a breeze to insert chemicals into your pumping system! Includes gas engine flange for drive coupling.

Features:

• Reversible Crankshaft for Easy Right or Left Hand Mounting
• Increased Fin Depth Increases Surface Area to Maximize Heat Dissipation
• Stainless Steel Unitized Check Valves
• Heat-Resistant Solid Ceramic Plungers Operating on Lubricated Packings
• Direct Drive Mounting Flange
• Reinforced Crankcase for Increased Load Capacity
• Enlarged Crankcase Increases Oil Capacity for Better Lubrication and Lower Operating Temperatures
• One-Piece Industrial-Grade Oversized Bronze Connecting Rods

Specifications

• Maximum Flow: 4.0 GPM
  
• Maximum Pressure: 4000 PSI
• Maximum Speed: 3400 RPM
• Inlet Port: 1/2" FPT
• Outlet Port: 3/8" FPT
• 1" hollow shaft
• 15 mm piston