Crane Pumps & Systems — Barnes Brand · Piqua, Ohio · Est. 1856

Model PUMP · Weinman End Suction Pumps · Barnes

1″-10″ DischargeUp to 4,000 gpmUp to 425 ft Head0.33- 200 HP Range

The Barnes PUMP barnes pump repair parts & accessories (143451). Weinman’s versatile end-suction pumps are heavy duty, general purpose centrifugal pumps with heavy wall castings suitable for many commercial, industrial and municipal needs. Applications include condenser, chilled, and hot water systems in HVAC, process secon Series capacity up to 4,000 gpm at 425 ft head.

HP Range

0.33- 200

Max Flow

4,000 gpm

Max Head

425 ft

Discharge

1″-10″

Speed

1150, 1750, or 3450

Crane Pumps Engineering

Barnes — manufactured by Crane Pumps & Systems, Piqua, Ohio since 1856

Crane Pumps & Systems

A Crane Co. company — 165+ years of pump engineering. Barnes, Burks, Deming, and Weinman under one roof in Piqua, Ohio

Wide HP Range

0.33- 200 HP available

Expert Support

Technical sizing and compatibility help — call (781) 281-8905 or chat

Why This Product

Close-Coupled End-Suction Design — Compact and Serviceable

Close-coupled design eliminates the flexible coupling and separate bearing housing of frame-mounted pumps — fewer components, smaller footprint, and lower maintenance requirements.

Back Pull-Out — Service Without Disturbing Piping

ANSI-frame back pull-out design allows impeller, seal, and wear ring service without disconnecting suction or discharge piping — reducing service time and cost on permanently installed pumps.

Multiple Construction Options

Bronze fitted, all-bronze, all-iron, and specialty material configurations. Seal material options cover water, wastewater, chemical, and petroleum service. Flanged casing available for code-compliant installations.

NEMA-Frame Motor — Standard Interchangeability

Standard NEMA motor frame allows direct field motor replacement with any major manufacturer's motor — no custom parts or factory service when only the motor has failed.

Wide HP Range — One Series for Multiple Duties

All models in the series share casing dimensions and spare parts — changing HP requires only a motor swap, not repiping or a new pump casing.

Deming · Weinman · Burks — Crane Pumps Engineering

Deming, Weinman, and Burks end-suction pumps are manufactured by Crane Pumps & Systems in Piqua, Ohio — trusted in HVAC, industrial, and municipal applications for over a century.

Technical Specifications

Model Number	143451
Series	Weinman End Suction Pumps
Brand	Barnes
Horsepower	0.33- 200
Series HP Range	0.33- 200
Max Flow Rate	4,000 gpm
Max Head	425 ft
Discharge Size	1″-10″
Speed	1150, 1750, or 3450

Key Features

Threaded and Flanged Discharges

Bronze Impellers

Close Coupled and Frame Mounted Models

Back pull-out design on some models

Utilizes standard NEMA motors

Available Options

Standard bronze fitted

Ductile iron casing

Mechanical seals for various applications and temperatures

Packed stuffing box

External flushing

Shaft sleeves-bronze or stainless steel

Typical Applications

General Water Service

Chilled & Hot Water Systems

Cooling Tower

HVAC

Industrial Processes

Municipal Drinking Water

Sprinkler & Irrigation Systems

Important Notices

Fluid compatibility	For use with liquids compatible with pump component materials. Verify chemical, temperature, and pressure compatibility before use.
Electrical	Requires a properly sized grounded branch circuit and motor starter with correctly rated thermal overload protection.
Operating limits	Do not exceed series pressure, temperature, and speed ratings. Operation outside rated limits causes premature seal and bearing failure.
Service	Disconnect and lockout/tagout power before any service. Allow pump to cool before handling after operation.

Available Documentation

✓ Product Specification Sheet — Weinman End Suction Pumps

✓ Installation, Operation & Maintenance Manual (IOM)

✓ Repair Parts Manual

✓ Product Catalog — Product Catalogs: Close-Coupled End Suction | Product Catalogs: Frame Mounted End Suction

Need the spec sheet, IOM, or parts list? Contact PumpStop and we'll send it over.

Before You OrderConfirm HP, voltage, phase, and enclosure type are correct for your installation. All models in the Weinman End Suction Pumps share casing dimensions and spare parts — motor configuration is the only difference between models. For sizing guidance, chat or call (781) 281-8905.

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