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W4100 (Boiler Feed Electric Pumps)

Introduction

To learn and see more about Boiler Feed Pumps, Please Visit the Boiler Feed Section.

The Boiler Feed Pumps (W4100 series) are equipped with Cast Iron bodies and Bronze Impellers. The pump receiver tank is made of Carbon Steel and available in Simplex or Duplex configurations.

Model	Discharge Pressure (psig)	Motor (HP)	Flow Rate (GPM)	Boiler (HP)	Receiver Capacity (Gallons) (lb/hr)	Weight (lbs)	System
W4122GF	20	1/3	3	15	30	200	Simplex System
W4132JF	30	1/2	3	15	30	260	Simplex System
W4142JF	40	1	3	15	30	265	Simplex System
W4152JF	50	2	3	15	30	275	Simplex System
W4124GF	20	1/3	6	30	30	200	Simplex System
W4134JF	30	1/2	6	30	30	260	Simplex System
W4144JF	40	1	6	30	30	265	Simplex System
W4154JF	50	2	6	30	30	275	Simplex System
W4126GF	20	1/3	9	45	45	240	Simplex System
W4136JF	30	1/2	9	45	45	300	Simplex System
W4146JF	40	1	9	45	45	305	Simplex System
W4156JF	50	2	9	45	45	315	Simplex System
W4128GF	20	1/3	12	60	60	275	Simplex System
W4138JF	30	1/2	12	60	60	335	Simplex System
W4148JF	40	1	12	60	60	340	Simplex System
W4158JF	50	2	12	60	60	350	Simplex System
W4122GDF	20	1/3	3	15	30	240	Duplex System
W4132JDF	30	1/2	3	15	30	300	Duplex System
W4142JDF	40	1	3	15	30	310	Duplex System
W4152JDF	50	2	3	15	30	330	Duplex System
W4124GDF	20	1/3	6	30	30	240	Duplex System
W4134JDF	30	1/2	6	30	30	300	Duplex System
W4144JDF	40	1	6	30	30	310	Duplex System
W4154JDF	50	2	6	30	30	330	Duplex System
W4126GDF	20	1/3	9	45	45	280	Duplex System
W4136JDF	30	1/2	9	45	45	340	Duplex System
W4146JDF	40	1	9	45	45	350	Duplex System
W4156JDF	50	2	9	45	45	370	Duplex System
W4128GDF	20	1/3	12	60	60	335	Duplex System
W4138JDF	30	1/2	12	60	60	395	Duplex System
W4148JDF	40	1	12	60	60	405	Duplex System
W4158JDF	50	2	12	60	60	425	Duplex System

Downloads

Catalog Spec Sheet (pdf)

I&M (pdf)

Product Overview

Boiler Feed Pumps Used (W4100 series - carbon steel receivers) for Boiler Feed applications, the operation of the pump is controlled by the water level control system on the boiler. When the boiler requires water, the pump switches on pumping water from the receiver into the boiler. The receiver tank also contains an internal make-up water valve actuated by a stainless steel float. If the amount of condensate being returned to the receiver tank is inadequate, additional boiler feed water is automatically added to the receiver tank.

SIMPLEX & DUPLEX - Water Level Control System on boiler is used to activate the pump.
SIMPLEX & DUPLEX - Automatic Make-up Water Valve is activated by a level float that adds additional boiler feed water to the receiver tank if required.

Features

• Fabricated steel receivers (W4100), Cast Iron (W4200), Stainless Steel (W4300)
• Simplex and duplex packages
• Bronze-fitted centrifugal pumps
• Energy-efficient 3450 RPM motors
• Automatic venting of mechanical seal
• Ceramic pump seal with carbon face
• Heavy-duty float switch
• All steel and iron receivers over 24 gallons include a threaded NPT overflow port

How It Works

For Boiler Feed units, the operation of the pump is controlled by the water level control device which is part of the boiler control package. When the boiler requires water, the pump switches on pumping water from the receiver into the boiler. On Duplex boiler feed units, an Electrical Alternator is used to activate one pump at a time in alternating fashion. The receiver tank also contains an internal make-up water valve actuated by a stainless steel float. This is used if the amount of condensate being returned to the receiver tank is inadequate.

Selection / Sizing / Capacities

• For a Boiler Feed Pump, the operation of the pump is controlled by the water level control system on the boiler. When the boiler requires water, the pump switches on pumping water from the receiver into the boiler. The receiver tank also contains an internal make-up water valve actuated by a stainless steel float. This is used if the amount of condensate being returned to the receiver tank is inadequate.
• On Duplex boiler feed pumps, an Electric Alternator is required to cycle operation between the two pumps.
• The capacity of the boiler feed pump in Gallons Per Minute (GPM) is based on the Boiler horsepower (hp).

For Example: A 15 horsepower boiler will produce up to 500 lbs/hr of steam when running at maximum load which translates to requiring 1.0 GPM of water make-up to the boiler. Using a 3:1 safety factor would require a 3.0 GPM Boiler Feed pump. The recommended receiver sizes based on boiler horsepower are shown in selection chart.

• Select a discharge pressure for the pump to overcome boiler pressure and all system back pressure including frictional piping losses. Pump discharge pressures of 20-50 PSI are available.

Dimension and Weights

Please click on individual model to see dimension.

Options

• Mechanical and Electrical Alternators
• Gauge Glass
• Thermometers
• Discharge Pressure Gauges
• Isolation valves
• Magnetic Starters with HOA Selector Switch
• 1750 RPM Motors
• Larger pumping capacities & higher discharge pressures
• Wide variety of control panels
• Oversized Receivers (45, 60 & 95 gallons)
• Stainless Steel Receivers
• High Temperature (250°F) Components

Installation and Maintenance

Place on an elevated, level and substantial foundation in a clean, dry and accessible area. Locate receiver tank inlet below lowest point of the condensate return lines.

Sample Specification

Pump(s) shall be of the centrifugal type with 2-piece closed bronze impeller, cast iron housing and stainless steel motor shaft. A flat perforated brass strainer shall be provided in the inlet of the pump.