General Pump
MK 40/45/50 Series

Vendor: General Pump

Coupling Type: Pressure Washer Couplings, Equipment & Accessories

Description:

MK 40/45/50 Series

Coupling Category:

Industrial Pumps

FEATURES

• A “New Generation” Pump
• Triplex Plunger Pump, available in 3 flows
• Low-high pressure packing design with integrated cooling system
• High volumetric efficiency suction/delivery valves featuring new spherical design of sealing areas
• Splash lubrication
• Available with external gear box in 1500/1800 RPM, positionable on left or right
• SAE “D” hydraulic drive available
• Includes drain/priming valve kit
• Gear Ratios: 1500 RPM=2.65:1, 1800=3.29:1

MATERIALS

• Pump body in cast iron
• Manifold made of spheroidal cast iron, nickel treated
• Self adjusting spherical roller bearings on crankshaft
• Forged steel connecting rods with antifriction bearings
• Crankshaft made of nitrided, hardened and tempered alloy steel
• Cast iron piston guide, nickel treated
• Solid ceramic plungers
• Stainless steel valves
• Product Group: V

COMMON SPECIFICATIONS

• Maximum Inlet Pressure: 45 PSI
• Maximum Fluid Temperature: 140° F
• Inlet Port Thread: 2" NPT
• Discharge Port Thread: 1" NPT-F
• Shaft Diameter: 2.165"/55 mm
• Stroke: 2.835"/72 mm
• Pump Dimensions: 32.64" x 29.38" x 14.25"
• Crankcase Oil Capacity 456.5 oz. (13.5 liters)
• Shipping Weight: 833 lbs./378 kg

MODEL	GPM/LPM	PSI/BAR	RPM	BORE	HP
MK40A	40.0 GPM/151 LPM	5800 PSI/400 BAR	1500/1800 RPM	1.575 in./40 mm	159
MK45A	50.0 GPM/190 LPM	4350 PSI/300 BAR	1500/1800 RPM	1.722 in./45 mm	149
MK50A	62.0 GPM/235 LPM	3625 PSI/250 BAR	1500/1800 RPM	1.969 in./50 mm	154

Note: All models come standard with crankshaft on right side (when facing manifold).