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J. L. Wingert GL30-E1-1 Economy 30 Gallon Glycol Feed System with Low Level Control

Sale price $3,566.48 Regular price $4,323.00

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Product Overview

The J. L. Wingert GL30-E1-1 Economy 30 Gallon Glycol Feed System with Low Level Control is an efficient automatic make-up unit designed to maintain proper fluid levels and system pressure in closed-loop heating and cooling systems. Featuring a durable 30-gallon polyethylene reservoir, integrated feed pump, and low-level protection control, this system helps improve operational reliability while reducing maintenance requirements. As one of the most dependable glycol feeders available for commercial and industrial applications, the GL30-E1-1 provides consistent fluid replenishment for hydronic, chilled water, and process cooling systems.

Why Choose the J. L. Wingert GL30-E1-1?

Maintaining proper fluid levels and pressure is essential for protecting HVAC and process equipment. The GL30-E1-1 automatically supplies make-up fluid when needed, helping facilities maintain efficient operation while minimizing downtime and costly repairs.

Key Benefits

✔ Automatic pressure maintenance

✔ Reduces the risk of air entering the system

✔ Helps prevent corrosion and equipment damage

✔ Integrated low-level control for added protection

✔ Durable 30-gallon polyethylene reservoir

✔ Supports glycol and water treatment programs

✔ Designed for commercial and industrial applications

✔ Reduces manual monitoring requirements

Key Features

30-Gallon Polyethylene Tank

The heavy-duty polyethylene reservoir offers ample fluid storage capacity while providing excellent resistance to corrosion and chemical exposure.

Automatic Fluid Replenishment

The integrated feed pump automatically introduces make-up fluid whenever system pressure drops below desired operating levels, helping maintain optimal performance.

Low-Level Control Protection

Built-in low-level control helps protect the system by alerting operators when reservoir levels become low, reducing the risk of pump damage and operational interruptions.

Reliable Commercial Performance

Manufactured by J. L. Wingert, this glycol feed system is engineered to deliver dependable performance in demanding HVAC and industrial environments.

Designed for Closed-Loop Systems

The GL30-E1-1 helps maintain proper system pressure while reducing the risk of air infiltration, corrosion, and inefficient system operation.

Common Applications

The J. L. Wingert GL30-E1-1 is commonly used in:

Commercial HVAC Systems

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

Institutional Facilities

  • Hospitals
  • Universities
  • Schools
  • Government buildings

Industrial Facilities

  • Manufacturing plants
  • Process cooling systems
  • Industrial temperature control applications

Commercial Buildings

  • Office complexes
  • Hotels
  • Retail centers
  • Mixed-use developments

Technical Specifications

Specification Details
Model GL30-E1-1
Manufacturer J. L. Wingert
Tank Capacity 30 Gallons
Tank Material Polyethylene
Control Type Low Level Control
Application Closed-Loop Systems
Fluid Compatibility Glycol Solutions & Water
Operation Automatic Feed System
Installation Type Commercial & Industrial

Compare J. L. Wingert Glycol Feed Systems

Feature GL15-E1-1 GL30-E1-1 GL50-E1-1
Tank Capacity 15 Gallons 30 Gallons 55 Gallons
Low Level Control Yes Yes Yes
Automatic Feed Operation Yes Yes Yes
Reservoir Material Polyethylene Polyethylene Polyethylene
Recommended Application Small Systems Medium Systems Large Systems
Commercial HVAC Use Yes Yes Yes
Industrial Applications Moderate High Extensive

Which Model Is Right for Your Facility?

System Size Recommended Model
Small Closed-Loop Systems GL15-E1-1
Medium Commercial Buildings GL30-E1-1
Large Commercial Facilities GL50-E1-1
Industrial Process Applications GL50-E1-1


The GL30-E1-1 is often the preferred choice for medium-sized commercial facilities that require reliable automatic make-up capabilities without the larger footprint of higher-capacity systems.

How a Glycol Feed System Works

A glycol feed system automatically monitors and maintains fluid volume within a closed-loop system. When system pressure decreases due to fluid loss, maintenance activities, or temperature fluctuations, the unit supplies additional glycol solution or water to restore proper operating conditions.

By maintaining consistent pressure levels, the system helps improve energy efficiency, reduce maintenance requirements, and protect critical HVAC and process equipment from damage.

Ideal For

This model is frequently selected by:

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

Need Help Selecting the Right Glycol Feed System?

Not sure if the GL30-E1-1 is the best option for your facility?

Our specialists can help you:

  • Select the proper system size
  • Determine fluid storage requirements
  • Recommend 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 is the purpose of the GL30-E1-1?

The GL30-E1-1 automatically maintains fluid levels and pressure in closed-loop heating and cooling systems, helping improve efficiency and protect equipment.

2. Why is low-level control important?

Low-level control helps prevent pump damage and system interruptions by notifying operators when reservoir fluid levels become too low.

3. Can this unit be used with glycol solutions?

Yes. The system is designed for glycol-based heating and cooling systems as well as water-based closed-loop applications.

4. What size facility is this model best suited for?

The 30-gallon capacity is ideal for medium-sized commercial buildings, institutional facilities, and industrial applications.

5. Does the system operate automatically?

Yes. The integrated feed pump automatically replenishes fluid when needed to maintain proper system pressure.

Download Resources:

Click here the data sheet

Click here for the brochure

Click here for instruction sheet