Справочник Пользователя для Ingersoll-Rand aro 650718-c

y Loctite® is a registered trademark of Henkel Loctite Corporation y ARO® is a registered trademark of Ingersoll-Rand Company y 262™, 271™ and 572™ are trademarks of Henkel Loctite Corporation y

y Kynar® is a registered trademark of Arkema Inc. y Viton® is a registered trademark of the DuPont Company y

Notice that the material inlet / outlet manifolds may be 
removed and rotated 180° to facilitate various mounting 
applications.
If the body of the pump must be rotated, remove the end 
covers and manifolds and index it so the bolts line up 
properly. NOTE: The arrow on the end caps must always 
point upward for optimum performance.
When the diaphragm pump is used in a force-feed situa-
tion, it is recommended that a check valve be installed at 
the air inlet to keep material out of air line in the event of 
diaphragm failure.
Secure diaphragm pump legs to a suitable surface to in-
sure against damage by excessive vibration.

The pump should never be operated at pressures exceed-
ing 50 p.s.i.g. (345 kPa) inlet air pressure. This pump is 
equipped with a pressure relief valve on the material out-
let manifold which will open at 40 +/-4 p.s.i. (2.76 bar) to 
relieve pressure increases in the outlet hoses / plumbing 
caused by thermal expansion or other external forces.
Disconnect the air supply from the pump if it is to be in-
active for a few hours.

Refer to the part views and descriptions as provided on 
pages 4 through 7 for parts identifi cation and service kit in-
formation.

Certain ARO “Smart Parts” are indicated which should be 
available for fast repair and reduction of down time.
Service kits are available to service two separate 
diaphragm pump functions: 1. AIR SECTION, 2. FLUID 
SECTION. The Fluid Section is divided further to match 
typical active Material Options.
Provide a clean work surface to protect sensitive internal 
moving parts from contamination from dirt and foreign 
matter during service disassembly and reassembly.
Keep good records of service activity and include the 
pump in preventive maintenance program.
Before disassembling, empty captured material in the 
outlet manifold by turning the pump upside down to 
drain material from the pump.

y

y

y

y

y

y

y

y

y

y

y

The ARO U.L. listed pump for pumping petroleum products, 
offers high volume delivery even at low air pressures and 
easy self-priming. This model is designed specifically for 
transfer, bulk unloading or fueling applications. It includes a 
pressure relief valve (per U.L. Specifi cation 79) which restricts 
the fl uid outlet pressure to under 50 p.s.i. (3.4 bar). The relief 
valve can be plumbed to return the bleed off  fuel to the stor-
age container.

and property damage. The air supply must be limited 
to 50 p.s.i.g. (3.4 bar) maximum inlet air pressure.
The air supply line or hose to the pump should be ad-
equately sized to carry a sufficient volume of air to the 
pump. The material inlet supply tubing should not be too 
small or restrictive which will inhibit material flow. The 
outlet material volume is governed not only by the air 
supply but also by the material volume available at the 
inlet.
Air supply provided should be filtered to provide clean 
dry air. A filter capable of filtering out particles larger 
than 50 microns should be used on the air supply. There 
is no lubrication required other than the “O” ring lubricant 
which is applied during assembly or repair.
If lubricated air is present, make sure that it is compatible 
with the “O” rings and seals in the air motor section of the 
pump.

Requirements for the installation are included in the 
Flammable and Combustible Liquids Code, NFPA No. 30, 
Automotive and Marine Service Station Code, NFPA No. 
30A and the National Electric Code, ANSI / NFPA No. 70.
A fl uid return hose which is compatible with the fl uid be-
ing pumped must be installed to the relief valve on the 
outlet manifold to return fl uid back to the supply tank or 
pump inlet.
The pump must be grounded to prevent static discharge. 
Grounding may be accomplished through the legs or to 
the ground lug provided on the pump.

y

y

y

y

y

y