To Next PageTo Next PageWhy is my Graco Husky 1050 exhausting air with fluid?
If the exhaust air contains the fluid being pumped, it could be due to a ruptured diaphragm (and backup). Another cause may be a loose diaphragm shaft bolt or damaged diaphragm shaft bolt o-ring. In any of these cases, replacement of the damaged parts or tightening the loose bolt is required.
What to do if Graco Husky 1050 Water Pump cycles but won't prime?
If your Graco Water Pump cycles but doesn't prime, several issues could be the cause. The check valve ball might be severely worn or wedged in the seat or manifold, or the seat itself could be severely worn. Another possibility is a clogged outlet or inlet, or a closed inlet or outlet valve. Loose inlet fittings or manifolds, and damaged manifold o-rings can also prevent priming. You should unclog any blockages, open any closed valves, and tighten any loose fittings. If components are worn or damaged, they should be replaced.
Why does my Graco Husky 1050 Water Pump operate erratically?
Erratic operation of your Graco Water Pump could be caused by several factors. The suction line may be clogged, or the check valve balls may be sticky or leaking. A ruptured diaphragm, a restricted exhaust, or damaged/worn pilot valves and air valve can also lead to this issue. Other potential causes include a damaged air valve gasket, an erratic air supply, or icing of the exhaust muffler. Inspect and clear any clogs, and replace any damaged or worn parts. If there is a restriction, remove it. If the air supply is erratic, repair it. For exhaust muffler icing, use a drier air supply or a low ice muffler.
What to do if Graco Husky 1050 will not cycle or stops after one cycle?
If your Graco Water Pump won't cycle, or cycles once and stops, this could be due to a few reasons. The air valve might be stuck or dirty, or the check valve ball could be severely worn and wedged in the seat or manifold. A worn, damaged, or plugged pilot valve, or a damaged air valve gasket could also be the cause. Additionally, the check valve ball may be wedged into the seat due to overpressurization, or the dispensing valve may be clogged. If you have a remote air control model, the air tubing could be plugged. Clear any blockages, relieve pressure and clear the valve, and replace any damaged components.
Why does my Graco Husky 1050 Water Pump leak air externally?
External air leaks in your Graco Water Pump may stem from several sources. Check if the air valve or fluid cover screws are loose and tighten them. A damaged diaphragm or air valve gasket can also cause leaks, requiring replacement. In remote air control models, ensure the remote air pressure isn't higher than the pump air pressure; regulate it to be equal to or less than the main air.
Why is there air bubbles in fluid from my Graco Husky 1050?
Air bubbles in the fluid from your Graco Water Pump could be due to a loose suction line. Another cause may be a ruptured diaphragm (and backup). Loose manifolds, damaged seats, or manifold o-rings, as well as a damaged diaphragm shaft bolt o-ring, can also introduce air into the fluid. Pump cavitation, or a loose diaphragm shaft bolt are other potential causes. Tighten any loose connections, replace any damaged components, reduce pump speed or suction lift to address cavitation.
Why does my Graco Husky 1050 cycle at stall or fail to hold pressure?
If your Graco Water Pump cycles at stall or fails to hold pressure, it is probably due to worn check valve balls, seats, or o-rings, which will need to be replaced.
Why does my Graco Husky 1050 leak fluid externally from joints?
Fluid leaks from the joints of your Graco Water Pump could be due to loose manifold screws or fluid cover screws. Worn out manifold o-rings can also cause leaks. Therefore, you should tighten any loose screws and replace worn o-rings.
Why does my Graco Husky 1050 exhaust excessive air at stall?
Excessive air exhaust at stall in your Graco Water Pump can be attributed to several issues. The air valve cup or plate might be worn, or the air valve gasket could be damaged. Also, damaged pilot valves, worn shaft seals or bearings, damaged or loose air tubing (in remote air control models), or remote air pressure being higher than pump air pressure (in remote air control models) can cause this problem. Replace any worn or damaged components and ensure proper air pressure regulation.
General| Type | Air-Operated Double Diaphragm Pump |
|---|---|
| Maximum Fluid Pressure | 125 psi (8.6 bar) |
| Maximum Solid Size | 1/8 in (3.2 mm) |
| Maximum Flow Rate | 50 gpm (189 l/min) |
| Fluid Inlet Size | 1 in npt(f) |
| Fluid Outlet Size | 1 in npt(f) |
| Maximum Suction Lift | 20 ft (6.1 m) |
| Wetted Materials | Aluminum, Polypropylene, Stainless Steel |
| Diaphragm Materials | Buna-N |
| Max Flow Rate | 105 GPM (397.5 LPM) |
| Power Source | Pneumatic |
Identifies risks from flammable fumes and ignition sources in the work area.
Covers safe operating practices, fatigue, and general equipment handling precautions.
Details hazards from pressurized systems, materials, fluids, and required personal protective equipment.
Steps to safely relieve system pressure before performing maintenance or repairs.
Instructions for repairing, rebuilding, or replacing air valve and diaphragm assemblies.
Procedures for servicing check valves, manifolds, and associated o-rings.
Guidance on proper torque values and patterns for reassembling pump components.
Quick reference table for pump part numbers, kits, and descriptions.
Details on center sections, air valves, fluid covers, and manifolds.
Information on seats, check balls, diaphragms, and manifold o-rings.
Lists available accessories, specialized kits, and related items for the pump.
Key operating parameters including pressure, flow rates, speed, and displacement.
Details fluid temperature range, pumpable solids, and inlet/outlet sizes.
Provides sound power/pressure levels and pump weight by material.
Lists wetted part materials and their compatibility with pump construction.
