50 GPM - Industrial Pneumatic Diaphragm Pump

The Husky 1050 is an industrial grade air-operated diaphragm pump with a Santoprene diaphragm that is great for handling applications involving antifreeze, detergents, motor oil, hydraulic fluid, cutting oil, water, and wastewater transfer. Center section of the pump is designed as one piece to prevent air leaks and provide increased efficiency. The air valve is engineered to deliver stall-free, low pulsation operation for smooth and rapid changeover.
 

Features:

• Longer Diaphragm Life - Up to 5x longer diaphragm life for less maintenance and downtime
• Modular Air Valve -Stall-free, low pulsation operation provides smooth and rapid changeover
• One-Piece Center Section - Eliminates air leaks for more efficient operation
• Four Bolt Joint Design - Bolted design provides even sealing pressure for leak-free operation
• Multiple Ports - Increased number of ports for installation flexibility

Husky 1050 Specifications:

• Air Exhaust Port Size (in): 3/4
• Air Exhaust Port Thread Gender: Female
• Air Exhaust Port Thread Type: NPT
• Air Inlet Size (in): 1/2
• Air Inlet Thread Gender: Female
• Air Inlet Thread Type: NPT
• Application: Industrial
• Ball Material: Santoprene
• Center Section Material: Polypropylene
• Compatible Material: Antifreeze, Detergents, Motor Oil, Hydraulic Fluid, Cutting Oil, Water - Wastewater Transfer
• Connection Type: End Flange ANSI/DIN
• Diaphragm Compatible Material: Santoprene
• Diaphragm Material: Santoprene
• Fluid Inlet Size (in): 1
• Fluid Outlet Size (in): 1
• Fluid Section Material: Polypropylene
• Manifold Configuration: End Port
• Manifold O-Ring Material: PTFE
• Material: Polypropylene
• Maximum Air Consumption (SCFM): 67
• Maximum Air Pressure (MPa): 0.86
• Maximum Air Pressure (psi): 125
• Maximum Cycle Rate (CPM): 280
• Maximum Flow Rate (GPM): 50
• Maximum Fluid Pressure (MPa): 0.86
• Maximum Fluid Pressure (psi): 125
• Maximum Operating Temperature (°F): 150
• Maximum Solid Size (in): 0.125
• Model: Husky
• Overall Height (in): 17.8
• Power Source: Air
• Seat Material: Polypropylene
• Series: 1050
• Part Number: 649029
• Standards Met: CE
• Type: Pneumatic Diaphragm Pump
• Wetted Material: Polypropylene, Santoprene, PTFE

Graco Husky 1050 Troubleshooting

Pump cycles but will not prime

• Pump is running too fast, causing cavitation before prime
  • Lower air inlet pressure
• Check valve ball is severely worn or wedged in the seat or manifold
  • Replace ball and seat
• Seat severely worn
  • Replace ball and seat
• Outlet or inlet clogged
  • Unclog it
• Inlet or outlet valve closed
  • Open the valve
• Inlet fittings or manifolds loose
  • Tighten
• Manifold o-rings damaged
  • Replace the o-rings

Pump cycles at stall or fails to hold pressure at stall

• Worn check valve balls, seats, or O-rings
  • Replace them

Pump will not cycle, or cycles once and stops

• Air valve is stuck or dirty. 
  • Disassemble and clean air valve. Use filtered air
• Check valve ball is severely worn and wedged in the seat or manifold
  • Replace ball and seat
• Pilot valve worn, damaged, or plugged
  • Replace pilot valve
• Air valve gasket damaged
  • Replace gasket
• Check valve ball is wedged into seat due to overpressurization
  • Install pressure relief kit
• Dispensing valve clogged
  • Relieve pressure and clear valve
• Air tubing is plugged (remote air control models)
  • Clear tube

Pump operates erratically

• Clogged suction line
  • Inspect; clear
• Sticky or leaking check valve balls
  • Clean or replace
• Diaphragm (and backup) ruptured
  • Replace
• Restricted exhaust
  • Remove restriction
• Pilot valves damaged or worn
  • Replace pilot valves
• Air valve damaged
  • Replace air valve
• Air valve gasket damaged
  • Replace air valve gasket
• Air supply erratic
  • Repair air supply
• Exhaust muffler icing
  • Use drier air supply or use low ice muffler (Graco part 102656)

Air bubbles in fluid

• Suction line is loose
  • Tighten.
• Diaphragm (and backup) ruptured
  • Replace
• Loose manifolds, damaged seats or manifold O-rings
  • Tighten manifold bolts or replace seats or O-rings
• Diaphragm shaft bolt O-ring damaged
  • Replace O-ring
• Pump cavitation
  • Reduce pump speed or suction lift
• Loose diaphragm shaft bolt
  • Tighten

Exhaust air contains fluid being pumped

• Diaphragm (and backup) ruptured
  • Replace
• Loose diaphragm shaft bolt
  • Tighten or replace
• Diaphragm shaft bolt o-ring damaged.
  • Replace o-ring

Moisture in exhaust air

• High inlet air humidity.
  • Use drier air supply

Pump exhausts excessive air at stall

• Worn air valve cup or plate
  • Replace cup and plate
• Damaged air valve gasket
  • Replace gasket
• Damaged pilot valve
  • Replace pilot valves
• Worn shaft seals or bearings
  • Replace shaft seals or bearings
• Air tubing is damaged or loose (remote air control models)
  • Replace tubing or secure connection
• Remote air pressure is higher than pump air pressure (remote air control models)
  • Regulate remote pilot air pressure to be equal to or less than main air

Pump leaks air externally

• Air valve or fluid cover screws loose
  • Tighten
• Diaphragm damaged
  • Replace diaphragm
• Air valve gasket damaged
  • Replace gasket
• Remote air pressure is higher than pump air pressure (remote air control models)
  • Regulate remote pilot air pressure to be equal to or less than main air

Pump leaks fluid externally from joints

• Loose manifold screws or fluid cover screws
  • Tighten manifold screws or fluid cover screws
• Manifold o-rings worn out
  • Replace o-rings

Pump leaks fluid externally through the manifold or fluid cover

• Excessive pump speed or inlet starvation
  • Replace manifold and reduce pump speed or improve pump feed