What Hydro Instruments does

Hydro Instruments is a privately held US manufacturer founded in 1978 and headquartered in Telford, Pennsylvania, specializing in vacuum-based gas chlorination and chemical metering equipment for water treatment and industrial process applications. Its core product architecture centers on a family of vacuum regulators and gas feed systems (Series 200 through 6000) that deliver chlorine, ammonia, sulfur dioxide, and carbon dioxide at precisely controlled rates, complemented by liquid feed systems (V-RAD, Conventional Vacuum), automatic control valves (OV-110, OV-1000, CV-230), a PID controller (HC-220), residual chlorine analyzers (RPH-250/260, RAH-210/280), a water quality monitor (WQM-100), a turbidimeter (TH-4000), and gas leak detection alarms (GA-180, GA-171). A key technical differentiator is the manufacturing approach: PVC bodies are machined from solid blocks rather than injection molded, which the company claims eliminates residual stresses that lead to cracking and warping; vacuum regulators use tantalum alloy springs under lifetime warranty, double O-ring sealed diaphragms, and silver inlet stems on Teflon seats. All electronic instrumentation is built on a modular circuit board platform with RS-485 Modbus communication, optional MicroSD data logging, and isolated 4-20mA outputs for SCADA integration.

The company sells directly to customers via its website and toll-free phone line (1-888-384-9376), with a quote-based pricing model and large inventory enabling same-day shipping of standard equipment. Its primary customer segment is municipal drinking water and wastewater utilities, with secondary exposure to power generation, food and produce processing, flour milling, swimming pools, oil and gas hydraulic fracturing, pulp and paper, aluminum refining, mining (cobalt and gold extraction), poultry farming, and automotive assembly plants. Hydro Instruments is ISO 9001:2015 and ISO 14001:2015 certified, is an Associate Member of The Chlorine Institute, Inc., and ships products globally to installed bases in Chile, Colombia, Mexico, Jordan, Saudi Arabia, and New Zealand. Revenue is generated almost entirely through one-time hardware sales of capital equipment and accessories; there is no disclosed recurring software, service, or consumables revenue stream.

Name

Hydro Instruments

Legal name

Hydro Instruments

Website

https://hydroinstruments.com

Company type

Private

Founded year

1978

Operating status

Operating

Headcount range

51–100 employees

Short description

Hydro Instruments is a Telford, Pennsylvania-based manufacturer, founded in 1978, of vacuum-based gas chlorination systems, control valves, residual analyzers, and gas leak detectors sold directly to municipal water utilities and industrial customers worldwide.

Ownership category

akta.pro rank

Product category

Water Treatment Equipment

NAICS

Measuring, Dispensing, and Other Pumping Equipment Manufacturing (333914), Pump and Compressor Manufacturing (33391), Totalizing Fluid Meter and Counting Device Manufacturing (334514), Fluid Power Valve and Hose Fitting Manufacturing (332912)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Pumps & Pumping Equipment (3561), Totalizing Fluid Meters & Counting Devices (3824)

akta.pro primary industry

Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ)

akta.pro secondary industries

Chemigation/Fertigation Injection Systems (Injectors, Dosing Pumps, Venturi Systems) (AFABAHAL), Monitoring & Control (Dosing Systems, Remote Monitoring, Sensors) (BPABAJAK)

Keywords

• Gas chlorination equipment
• Water treatment systems
• Chemical feed equipment
• Residual chlorine analyzers
• Gas leak detection

Headquarters

HQ city

Telford

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Hardware Sales - Gas Chlorination Equipment: Hydro Instruments generates revenue primarily through the sale of physical gas chlorination equipment including vacuum regulators, gas feed systems, control valves, analyzers, gas alarms, and accessories. Products are sold directly to municipal, industrial, and commercial customers worldwide.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Hydro Instruments manufactures vacuum-based gas chlorination systems and chemical metering equipment used for precise chlorine, ammonia, and sulfur dioxide dosing in municipal drinking water treatment, wastewater treatment, and industrial applications. Its product portfolio includes gas feed systems (Series 200 through 6000), liquid feed systems, automatic control valves, PID controllers, residual chlorine analyzers, water quality monitors, turbidimeters, gas leak detectors, and supporting accessories such as vaporizers, changeover systems, and manifolds.

Product overview

Hydro Instruments is a manufacturer of gas chlorination systems and chemical metering equipment, in operation since 1978. The product portfolio centers on vacuum-based gas feed systems (Series 200 through 6000) for precise chlorine, ammonia, and sulfur dioxide dosing, complemented by liquid feed systems (V-RAD and Conventional Vacuum Systems). Process control is managed through automatic control valves (OV-110, OV-1000, CV-230) and the HC-220 PID controller. Water quality monitoring includes residual analyzers (RPH-250, RPH-260, RAH-210, RAH-280), the WQM-100 Water Quality Monitor, and TH-4000 Turbidimeter. Safety is addressed through the GA-180 and GA-171 Gas Alarms. Supporting accessories include vaporizers, the CS-110 Changeover System, Chlorsafe Valve Closure System, Vent Arrestor, manifolds, tubing, and calibration columns. All electronic products include RS-485 Modbus communication and optional MicroSD data logging capabilities.

Differentiator

Problem solved

Functional benefit

Segments11 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Grundfos: Grundfos is a major pump and dosing equipment manufacturer that complements and competes with Hydro Instruments' vacuum ejector and feed system business, while serving a much broader water and HVAC portfolio that overlaps with the same utility and industrial customers.
• Xylem: Xylem is a broad water technology incumbent offering treatment, dosing, and monitoring solutions that overlap with Hydro Instruments' water treatment equipment portfolio, though Xylem operates at far greater scale across multiple water and wastewater verticals.
• Siemens Water Solutions: Siemens' water solutions business supplies water treatment process control, instrumentation, and disinfection systems that overlap with Hydro Instruments' analyzers, PID controllers, and chlorination automation offerings, particularly for municipal and industrial plant operators.
• Pentair: Pentair is a broad water and pool treatment equipment incumbent whose commercial/industrial water treatment offerings (including dosing, filtration, and chlorination) compete with Hydro Instruments across pools, food processing, and industrial water segments.

Direct peers

• De Nora: De Nora manufactures on-site chlorine generation, dosing, and water disinfection equipment, overlapping with Hydro Instruments' gas chlorination franchise while also extending into alternative disinfection technologies serving the same municipal and industrial customers.
• Severn Trent Services (Capital Controls): Severn Trent Services' Capital Controls brand is a direct competitor in vacuum gas chlorination and SO2 feed systems, targeting municipal drinking water and wastewater utilities with the same core product categories as Hydro Instruments.
• Wallace & Tiernan (Evoqua Water Technologies): Wallace & Tiernan, now part of Evoqua, is one of the most established chlorination and disinfection equipment brands globally, directly competing with Hydro Instruments' gas chlorinators, analyzers, and control valves in municipal and industrial water treatment.
• ProMinent Group: ProMinent is a global manufacturer of chemical metering/dosing pumps, controllers, and sensors — the same core functional categories as Hydro Instruments' V-RAD liquid feed, OV/CV valves, and analyzers, serving overlapping municipal and industrial water treatment buyers.
• ChlorKing: ChlorKing is a niche manufacturer of commercial and municipal pool chlorination systems, overlapping with Hydro Instruments' swimming pool and commercial disinfection customer use cases though with a more specialized focus on salt-chlorine and on-site generation technologies.

Emerging players

• ECD (Electro-Chemical Devices): ECD manufactures residual chlorine analyzers and water quality instruments that overlap directly with Hydro Instruments' RPH and RAH analyzer lines, targeting the same municipal and industrial buyers for instrumentation-only purchases.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/hydro-instruments

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Hydro Instruments