ARO 650719-C Manual del usuario - Página 3

Navegue en línea o descargue pdf Manual del usuario para Bomba de agua ARO 650719-C. ARO 650719-C 8 páginas. 2" diaphragm pump u.l. listed, 1:1 ratio, metallic

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GENERAL DESCRIPTION

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.

AIR AND LUBE REQUIREMENTS

EXCESSIVE AIR PRESSURE. Can cause pump

WARNING

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.

INSTALLATION

IMPORTANT

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.

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

650719-C (en)

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

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.

OPERATING INSTRUCTIONS

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.

MAINTENANCE

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.

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