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J.L. Wingert DB-5HD Dome Bottom Bypass Feeder

Sale price $708.67 Regular price $859.00

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Product Overview

The J.L. Wingert DB-5HD Dome Bottom Bypass Feeder is a durable and efficient solution for introducing treatment chemicals into closed-loop heating, cooling, and process water systems. Designed for commercial and industrial applications, this chemical bypass feeder helps maintain proper water chemistry, reduce corrosion and scale formation, and improve overall system performance. With its heavy-duty carbon steel construction and dome-bottom design, the DB-5HD provides reliable operation while simplifying chemical treatment procedures.

Engineered by J.L. Wingert, this feeder is ideal for HVAC systems, chilled water loops, boiler systems, and industrial water treatment programs where consistent chemical dosing is essential for equipment protection and long-term efficiency.

Why Choose the J.L. Wingert DB-5HD?

Maintaining proper water treatment chemistry is critical for protecting piping, pumps, heat exchangers, and other system components. The DB-5HD provides a safe and convenient method for introducing treatment chemicals into circulating water systems without disrupting operations.

Key Benefits

✔ Simplifies chemical treatment programs

✔ Helps reduce corrosion and scale buildup

✔ Supports improved heat transfer efficiency

✔ Durable carbon steel construction

✔ Dome-bottom design for easier maintenance

✔ Suitable for commercial and industrial applications

✔ Easy chemical loading and system integration

✔ Long service life with minimal maintenance

Key Features

Dome Bottom Vessel Design

The dome-bottom construction promotes improved drainage and minimizes residue buildup inside the vessel, making routine maintenance and cleaning more efficient.

Heavy-Duty Carbon Steel Construction

Built for demanding environments, the DB-5HD is manufactured from durable carbon steel to provide years of dependable performance in commercial and industrial water systems.

Easy Chemical Charging

The feeder allows operators to safely introduce corrosion inhibitors, scale inhibitors, biocides, and other treatment chemicals directly into a closed-loop system.

Compact and Efficient Design

The DB-5HD offers an excellent balance of capacity and footprint, making it suitable for a wide range of installations where space may be limited.

Reliable System Protection

When incorporated into a comprehensive water treatment program, the feeder helps maintain optimal water quality and system efficiency.

Common Applications

The J.L. Wingert DB-5HD is commonly used in:

HVAC Systems

  • Chilled water systems
  • Hydronic heating systems
  • Closed-loop HVAC applications
  • Heat pump systems

Boiler Water Treatment

  • Low-pressure boiler systems
  • Closed-loop heating systems
  • Mechanical room installations

Commercial Buildings

  • Office buildings
  • Hospitals
  • Schools and universities
  • Hotels and resorts

Industrial Facilities

  • Manufacturing plants
  • Process cooling systems
  • Industrial water treatment applications

Technical Specifications

Specification Details
Model DB-5HD
Manufacturer J.L. Wingert
Feeder Type Dome Bottom Bypass Feeder
Vessel Capacity 5 Gallons
Construction Material Carbon Steel
Maximum Working Pressure 200 PSI
Maximum Operating Temperature 200°F
Inlet Connection 3/4" FNPT
Outlet Connection 3/4" FNPT
Closure Type Quarter-Turn Closure

Compare J.L. Wingert Dome Bottom Bypass Feeders

Feature DB-2HD DB-5HD DB-12HD
Vessel Capacity 2 Gallons 5 Gallons 12 Gallons
Maximum Pressure 200 PSI 200 PSI 200 PSI
Maximum Temperature 200°F 200°F 200°F
Construction Carbon Steel Carbon Steel Carbon Steel
Closure Type Quarter-Turn Quarter-Turn Quarter-Turn
Best For Small Systems Medium Systems Large Systems
Chemical Treatment Capability Yes Yes Yes

Which Bypass Feeder Is Right for Your System?

Application Size Recommended Model
Small Closed Loops DB-2HD
Medium Commercial Systems DB-5HD
Large Commercial & Industrial Systems DB-12HD


The DB-5HD is often the preferred choice for medium-sized commercial facilities requiring reliable chemical treatment and easy maintenance.

How a Bypass Feeder Works

A bypass feeder is installed on a side-stream loop connected to the primary water system. Water enters the feeder vessel, where treatment chemicals are introduced and mixed before returning to the system. This process allows operators to safely add chemicals without shutting down equipment or interrupting system operation.

Proper chemical treatment helps reduce corrosion, prevent scale formation, and maintain efficient heat transfer throughout the system. For facilities seeking dependable water treatment performance, the DB-5HD offers a practical and proven solution.

Ideal For

This feeder is frequently selected by:

  • Water treatment professionals
  • HVAC contractors
  • Mechanical contractors
  • Facility managers
  • Building engineers
  • Industrial maintenance teams

Need Help Selecting the Right Bypass Feeder?

Not sure if the DB-5HD is the best option for your application?

Our specialists can help you:

  • Select the proper feeder size
  • Determine chemical treatment requirements
  • Recommend compatible accessories
  • Provide volume pricing
  • Answer installation questions

👉 Request a Quote Today

Or call (623) 624-5662 to speak with a product specialist.

Frequently Asked Questions

1. What types of systems can use this feeder?

The feeder is commonly installed in HVAC systems, hydronic heating systems, chilled water loops, boiler systems, and industrial process water applications.

2. What is the vessel capacity?

The DB-5HD has a nominal vessel capacity of 5 gallons.

3. What is the maximum operating pressure?

The feeder is rated for operation up to 200 PSI.

4. Can the feeder be used with corrosion inhibitors?

Yes. The DB-5HD is designed to accommodate a variety of water treatment chemicals, including corrosion inhibitors, scale inhibitors, and biocides.

5. Why is water treatment important in closed-loop systems?

Proper water treatment helps protect equipment, improve efficiency, reduce maintenance costs, and extend system life.

Download Resources:

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Click Here for the Manual

Click Here for the Specifications