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, 3500 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.

• Specifications:
• Series: ZWD-K 4035 G
• Model Number: 6305.1850.00
• Shaft Size (Diameter): Ø 1"
• Shaft Style: Hollow Shaft - Gas Engines
• RPMs: 3400
• Inlet Connection: 1/2" FBSP
• Outlet Connection: 3/8" MNPT
• Pump Head: Brass
• Oil Capacity: 14 fl oz
• Max Temperature: 140° F
• GPM: 4.0
• PSI: 3500
• HP: 8.7
• Features:
• Brass Head
• Built-In Unloader Valve
• Increased Fin Depth Increases Surface Area to Maximize Heat Dissipation
• Stainless Steel Unitized Check Valves
• Heat-Resistant Solid Ceramic Plungers Operating on Lubricated Packings
• 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