Ammonia Feed

Ammonia Feed Systems for Water Treatment

How do water treatment facilities maintain proper disinfection levels throughout an entire drinking water distribution system? While primary disinfection at the treatment plant is essential, maintaining a stable disinfectant residual as water travels through miles of pipelines is equally important. Without effective secondary disinfection, disinfectant levels can dissipate before water reaches consumers, potentially compromising water quality and safety.

Ammonia feed systems play a critical role in addressing this challenge. By introducing ammonia into treated water, utilities can form chloramines, which act as a longer-lasting disinfectant residual than free chlorine alone, helping maintain stable water quality throughout distribution networks.

To support chloramination, utilities rely on dependable ammonia gas feed systems that provide accurate dosing and reliable performance. The good news is that Hydro Instruments designs ammonia feed systems that enable water treatment professionals to precisely control ammonia gas feed while maintaining safety, efficiency, and system stability.

If you’re interested in equipment with robust engineering and operator-friendly designs, connect with our specialists about high-quality ammonia gas feed systems.

Systems & Components
Cylinder and Manifold Mounted

Information & Features
  • Vacuum type Ammonia gas feed systems and components available up to 1000 PPD (20 Kg/h)
    • Vacuum feed systems can be provided with automatic feed rate control using our Omni-Valve automatic control valve.
  • Series 6000 direct injection / pressure feed Ammonia systems available up to 500 PPD (10 Kg/h)
    • Direct injection / pressure feed systems can be provided with automatic feed rate control using our Omni-Valve automatic control valve.
  • A full range of pressure manifold accessories for Ammonia gas handling are available
  • Consult Hydro Instruments for equipment selection and system design.
Product Downloads
Ammonia Product Series

Related Products

OV-110

Automatic Control Valves

OV-110 & OV-1000 Omni-Valve, CV-230 Control Valve

  • Proportional, Set Point, or Compound Loop Control options
  • Available feed rates up to 1000 PPD NH3
  • OV-110
  • OV-1000
  • CV-230

GA-180 Gas Alarm

Gas Leak Detection

GA-180 Gas Alarm

  • Multiple gas sensor options
  • Simple operation and calibration
  • GA-180
  • GA-171

Ammonia Ejectors

Ammonia Ejectors

  • Available up to 1000 PPD NH3
  • Multiple nozzle sizes to match feed capacity and/or hydraulics

Manual Feed Rate Control

Manual Feed Rate Control

  • Meter panel and flow tube with reliable and repeatable rate valve control

Series 900 Automatic Switchover

Switchover Systems

Series 900 Automatic Switchover

  • Vacuum regulators have an integral switchover mechanism designed to automatically switch from a depleted gas source to a full one
  • Minimizes operator interaction
  • Up to 500 PPD Ammonia gas feed
  • Series 900

Why Ammonia Feed Systems Are Important in Water Treatment

Accurate ammonia dosing is essential for maintaining the correct chlorine-to-ammonia ratio required for stable chloramine formation. This is where ammonia feed systems become critical. High-quality ammonia gas feed equipment ensures that ammonia is introduced into the water treatment process at precisely controlled rates, helping operators maintain optimal conditions for chloramine production.

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Reliable ammonia gas feed systems also contribute to operational consistency. With precise metering and dependable equipment, operators can maintain stable chemical dosing while minimizing system disruptions or fluctuations that could affect water quality.

Where Ammonia Feed Systems Are Used

Ammonia feed systems are widely used in a variety of water treatment and industrial applications where chloramination or ammonia dosing is required. Their flexibility and reliability are particularly valuable in facilities that must maintain consistent chemical feed rates and dependable disinfection processes.

Municipal Drinking Water Treatment Plants

Municipal water treatment plants are among the most common users of ammonia gas feed systems. In these facilities, ammonia is introduced after primary chlorination to create chloramines for secondary disinfection.

Reliable ammonia gas feed equipment ensures that dosing remains precise and consistent, which is essential for maintaining stable chloramine residuals and complying with drinking water regulations.

Water Distribution Systems

Ammonia feed systems may also be used within water distribution networks themselves. In some cases, utilities introduce ammonia at booster stations or strategic points in the system to maintain chloramine residuals in areas where disinfectant levels might otherwise decline.

Using dependable ammonia gas feed systems allows operators to carefully manage disinfectant concentrations throughout the network, supporting water quality and public health.

Industrial Water Treatment Processes

Industrial facilities that treat water for process use may also rely on ammonia gas feed equipment. In these environments, controlled ammonia dosing can support disinfection processes, cooling water treatment, or other chemical management applications.

Features of Hydro Instruments’ Ammonia Gas Feed Equipment

Hydro Instruments is known for manufacturing high-quality chemical feed solutions for water treatment professionals. Our ammonia feed systems, in particular, are engineered to deliver precise dosing, dependable performance, and long-term durability in demanding environments.

Precise Metering

Hydro Instruments ammonia gas feed systems are designed to deliver precise metering, allowing operators to maintain the correct ammonia feed rate for their specific application. These precise feed rates help ensure stable chlorine-to-ammonia ratios, which are critical for producing effective chloramine disinfectants while avoiding undesirable chemical imbalances.

Durable Construction

Water treatment facilities require equipment that can withstand demanding operating conditions. Hydro Instruments ammonia gas chlorination system is built using high-quality materials designed to resist corrosion and ensure long-term reliability. This helps reduce maintenance requirements and supports dependable operation even in continuous-use environments.

Operator-Friendly Design

Ease of operation is another important consideration for water treatment professionals. Hydro Instruments designs ammonia feed systems with operator-friendly features that simplify installation, monitoring, and maintenance.

Built With Safety in Mind

Given the risks an accidental gas release can cause during the water treatment process, the design of an ammonia gas feed system must prioritize safety to meet industry standards. For that reason, our ammoniators are made with special corrosion-resistant materials to withstand constant exposure to ammonia.

Additionally, to reduce the likelihood of leaks, we’ve created our ammoniators without pressurized chemical lines. Instead, they use vacuum-based technology to feed gas, which adds an extra layer of protection not present in traditional systems.

Compatibility With Water Treatment Infrastructure

Hydro Instruments ammonia feed systems are designed to integrate seamlessly with existing water treatment infrastructure. Whether facilities are upgrading older ammonia gas feed equipment or implementing a new ammonia gas chlorination system, Hydro Instruments provides solutions that work within modern treatment environments.

Do you want to take your water treatment processes even further? Consider pairing the ammonia gas feed system with the CS-110 automatic changeover system and the GA-180 gas alarm.

Warranty

Organizations that utilize ammonia feeding systems in their operations demand reliable, long-lasting equipment, and a warranty provides confidence in the system’s long-term performance. The Hydro Instruments’ gas ammoniators are among the longest-lasting in the market, meaning that you can rest assured you’re getting the highest-quality systems available. We stand behind the performance of our ammonia gas feed systems — and you can, too.

Partner With Hydro Instruments for Reliable Chemical Feed Solutions

Hydro Instruments is committed to delivering high-performance ammonia gas feed equipment that water treatment professionals can trust to contribute to stable water quality, regulatory compliance, and efficient plant operations. If you are implementing a new system or upgrading existing equipment, know that we will provide the reliable solutions you need.

Contact us today to learn more about our ammonia gas feed systems or to request a quote!

Need a different type of solution? Consider our vacuum liquid feed system, Series 300 gas vacuum system, or the Series 800 gas feed system.