13 Constant Flow Valve Manufacturers in 2024
This section provides an overview for constant flow valves as well as their applications and principles. Also, please take a look at the list of 13 constant flow valve manufacturers and their company rankings. Here are the top-ranked constant flow valve companies as of November, 2024: 1.Cla-Val Company, 2.Rotarex, 3.Flomatic(R) Corporation.
Table of Contents
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What Is a Constant Flow Valve?
A constant flow valve is a control valve designed to maintain a constant flow rate of fluid, even in the presence of pressure fluctuations. These valves eliminate the need for additional control devices, offering cost and space savings. They are typically easy to install and do not require a power supply, making them suitable for handling hazardous fluids safely.
Uses of Constant Flow Valves
Constant flow valves find applications in various sectors, including:
- Manufacturing industry for plant flow control.
- Chemical processes and food processing for consistent flow.
- Building air conditioning systems for temperature control.
- Thermal power plants and industrial furnaces for fuel supply regulation.
Principle of Constant Flow Valve
Constant flow valves regulate flow by adjusting the opening area in the pipeline. They typically have moving parts like discs or plates that generate resistance to control the flow rate. These valves can be part of a feedback control loop, using sensors to monitor and adjust the flow rate as needed.
Types of Constant Flow Valves
Different types of constant flow valves include:
1. Flow Washer Type
Uses a rubber flow washer with small holes to limit and adjust the flow path area.
2. Orifice Type
Employs an orifice plate to control fluid flow by altering the hole size.
3. Needle Type
Features a needle-like part for precise flow control, ideal for advanced control requirements.
4. Diaphragm Type
Uses a flexible diaphragm, typically made of durable materials like PTFE, for accurate flow control in various fluids and environments.
Constant flow valves are essential in industries where maintaining a consistent flow rate is crucial for efficiency and safety.
List of 13 Constant Flow Valve Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- United States of America
- Japan
- Luxembourg
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Kelly Pneumatics, Inc.
Proportional Flow Valves
Manufacturer Overview
Kelly Pneumatics was established in 2004 and is based out of Newport Beach, California. The company is a designer and manufacturer of proportional valves, pressure regulators, and pneumatic control products for numerous industries including medical, alternative energy, test equipment, semiconductor equipment, and gas analyzers. The company’s standard products include proportional valves, pressure regulators, flow controllers, flow sensors and meters, and electronic boards. The company provides custom solutions for pneumatic valves, regulators, and control products to match customers’ needs. These include analyzing, engineering, prototyping, and testing.
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Cla-Val Company
Flow Control Valves
Manufacturer Overview
Roll Seal Valve Co., Inc., established in 1936, is headquartered in Costa Mesa, California, USA, and is a manufacturer specializing in the production of valves and control systems. The company's product range includes butterfly valves, pressure-reducing valves, and other fluid control solutions engineered for reliability in waterworks, oil and gas, and chemical processing industries. It has received awards like the Fluid Control Pioneer Award in 2015 and Industry Innovation Recognition in 2019. Additionally, the company holds ISO 9001 certification for quality management.
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Flomatic(R) Corporation
Flo-Trol® Flow Control and Flow Regulator Valves
Manufacturer Overview
Flomatic(R) Corporation, founded in Glens Falls, NY, in 1933 is a manufacturer of valves for the water and wastewater industry. The company's product portfolio includes Backflow Preventers, Break Off Plugs, Butterfly Valves, Check Valves and Constant Pressure Pump Control Valves. The company serves markets including Medical and Healthcare, Aerospace and Defense, Consumer Goods, Industrial Manufacturing and Construction and Building. The company also offers services including test and measuring the coating thickness of fusion bonded epoxy coat paint systems to ensure superior abrasion and corrosion resistance for longevity and verification organizations and labs to ensure safety.
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Griswold Controls
Irrigation High Limit Constant Flow Valves
Manufacturer Overview
Griswold Controls was established in 1960 in Irvine, California, and is a manufacturer of flow control solutions for HVAC, irrigation, custom material valve, and military valve industries. The company makes automatic flow-limiting valves, hose kits, portable water solutions, and Navy automatic flow-limiting valves that solve challenges engineers and contractors face when designing and installing HVAC systems. The company has worked for clients like Monteleone Hotel, the University of California, Vancouver International Airport, and Perdue School of Business.
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Plast-O-Matic Valves, Inc.
Constant Flow Valves
Manufacturer Overview
Plast-O-Matic was formed in 1967 in New Jersey, now situated in Cedar Grove, New Jersey. Plast-O-Matic serves aquarium, chemical dosing, chemical processing, metal finishing, semiconductor, wastewater treatment, water purification, and government application industries. Product offerings include product data sheets, CAD downloads, installation & maintenance instructions, ball valves, check valves, gauge guards, pressure regulators, process cooling sticks, anti-siphon valves, shut-off and diverter valves, sight glass & level indicators, solenoid valves, venting valves, other process controls & pumps, and custom valves.
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Manufacturer Overview
Kimray, Inc., headquartered in Oklahoma City, Oklahoma, has been a manufacturer and global supplier of control equipment for the oil and gas industry since 1948. Its product range includes control valves, regulators, thermostats, pumps, and liquid level controls. These products are used for various applications such as oil and gas production, gas processing, refining, and petrochemicals. The company holds several certifications, including the ISO 9001 FM505466 and the API Q1 certificate for its quality management system.
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Admiral Valve, LLC dba CPV Manufacturing
6 Types of Flow Control Valve
Manufacturer Overview
Admiral Valve, LLC, dba CPV Manufacturing, founded in 1915 with headquarters in the USA, is a manufacturer of industrial valves and related equipment and accessories. The company's products include master valves, control valves, relief valves, o-ring face seals, and direct weld adapters. CPV Manufacturing's products are used in industries including construction, chemical processing, oil and gas, and infrastructure engineering and can be found in chemical processing plants, high-pressure water distribution systems, and on oil rigs. The company also provides customized solutions, including design, engineering, and production, for client-specific requirements.
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Singer Valve Inc.
FLOW LIMITING CONTROL VALVE
Company Overview
Singer Valve Inc., founded in 1957, is a manufacturer and distributor of control valves and related solutions in Tennessee, USA. The company manufactures products that help regulate and control water flow and other fluids in various applications. The company provides multiple solutions, including control valves, pressure-reducing valves, surge control valves, and altitude valves. These valves control fluid flow, pressure, and level in pipelines and water distribution systems. The company serves diverse industries, including municipal water utilities, wastewater management, industrial processes, and irrigation.
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KEIHIN CO., LTD
Constant Flow Valves
Manufacturer Overview
KEIHIN CO., LTD, founded in Japan, in 1953 is a manufacturer of industrial valves. The company's product portfolio includes ball valves, ate valves used for isolating and regulating the flow of liquids, gases, and slurry, Check Valves, Pressure Relief Valves, and diaphragm valves used for sterile and aseptic applications in the pharmaceutical and food industries.Their products are used in markets such as Automotive and Transportation, Telecommunications, Industrial Automation, Healthcare and Medical Devices and Aerospace and Defense.
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KOFLOC Corp.
Flow Control Valves
Manufacturer Overview
KOFLOC Corporation, established in 1949, is a manufacturer and retailer of standard and off-catalog custom gas generators, precision flow instruments, and engineering devices headquartered in Osaka, Japan. The company manufactures various flow instruments for measuring and controlling fluids, including flow meters, pressure regulating valves, flow control valves, and mass flow controllers and meters. The company’s gas generators are used to generate various gases from the air and water, including nitrogen gas, hydrogen gas, oxygen gas, ozone gas, and clean dry air. KOFLOC is ISO14001: 2006-certified company whose equipment are used in aerospace, water treatment plants, power generation, and refineries.
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Asahi Organic Chemicals Industry
CONSTANT FLOW VALVE
Manufacturer Overview
ASAHI YUKIZAI CORPORATION, formerly known as Asahi Organic Chemicals Industry, is a Japanese manufacturer headquartered in Taito-ku, Tokyo, and specializes in resins and plastic valves since its establishment in 1945. The company manufactures valve and piping systems, including manual & automatic valves, pipes, fittings, and mixers. It also offers various foundry materials such as resin and sand products for casting, along with functional resins which cater to housing, construction, and industrial applications. The company engages in the design and construction of water utility facilities & reuse of wastewater, industrial water & wastewater treatment, environmental pollution prevention & purification, and public sewage management.
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Rotarex
CONSTANT FLOW CYLINDER VALVE
Company Overview
Rotarex, based in Luxembourg, has been a manufacturer and distributor of gas control products and systems since 1922. The company's product lineup encompasses valves, regulators, cylinder valves, fire protection systems, and LPG and CNG equipment. The company operates globally, with subsidiaries and sales offices in various countries worldwide. With a rich history of developing cutting-edge solutions in the gas control industry, the company invests in research and development to create products that meet evolving industry needs. Its products and systems are found in various applications, including manufacturing, healthcare, automotive, fire protection, and more.
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Pace Supply Corp.
Flo-Trol Model CD900 Automatic Constant Flow Control Valve
Distributor Overview
Pace Supply Corp., founded in 1994 and based in Rohnert Park, California, United States, is a distributor of products related to plumbing, fire protection, HVAC, water heaters, and pipe supports. The company has branches across the US and six bath and kitchen showrooms across California, Oregon, and Hawaii. The company offers products such as chemical & sealing, fittings, valves, water treatment and filtration, and HVAC and refrigeration. The products are catered to the residential and industrial sectors.
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Constant Flow Valve Manufacturer Ranking
*Including some distributors, etc.Ranking as of November 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Cla-Val Company |
16.7%
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| 2 | Rotarex |
11.1%
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| 3 | Flomatic(R) Corporation |
11.1%
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| 4 | Kelly Pneumatics, Inc. |
11.1%
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| 5 | Asahi Organic Chemicals Industry |
11.1%
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| 6 | KEIHIN CO., LTD |
8.3%
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| 7 | Kimray |
5.6%
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| 8 | Griswold Controls |
5.6%
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| 9 | Admiral Valve, LLC dba CPV Manufacturing |
5.6%
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| 10 | KOFLOC Corp. |
5.6%
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Derivation Method
The ranking is calculated based on the click share within the constant flow valve page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
- Asahi Organic Chemicals Industry: 1,555
- KOFLOC Corp.: 211
- KEIHIN CO., LTD: 46
Newly Established Company
- KOFLOC Corp.: 1974 (50 years ago)
- Plast-O-Matic Valves, Inc.: 1967 (57 years ago)
- Singer Valve Inc.: 1957 (67 years ago)
Company with a History
- Admiral Valve, LLC dba CPV Manufacturing: 1915 (109 years ago)
- Rotarex: 1922 (102 years ago)
- Asahi Organic Chemicals Industry: 1945 (79 years ago)
Constant Flow Valve Manufacturers in United States
*Including some distributors, etc.
- Kelly Pneumatics, Inc.
- Cla-Val Company
- Flomatic(R) Corporation
- Griswold Controls
- Plast-O-Matic Valves, Inc.
- Kimray
- Admiral Valve, LLC dba CPV Manufacturing
- Singer Valve Inc.
Global Distribution of Constant Flow Valve Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
United States of America
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8 | 66.7% |
Japan
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3 | 25.0% |
| Luxembourg | 1 | 8.3% |
List of Constant Flow Valve Products
21 products are listed.
Nippon Flow Cell
Statelined valve (setting flow rate variable type) Flowmatic valve NFV type
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The flowmatic valve NFV type keeps the flow rate set at all times, even if the pressure is changed for liquids and the exit side (secondary side) p...
Enomoto Kogyo
Mini rotary valve (fixed flow valve)
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Our mini -rotary valve is a stable manufacturing line by improving the weaknesses of the conventional "butterfly valve", improving the crushing eff...
Meino
Rotary Valve CRV series
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<Produced with our own integrated system> Nanano is particular about the production of recycling and powder equipment It is to produce and support ...
Nippon Flow Cell
Statular dialect fan setter (for fan coil unit)
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Even if the primary and secondary pressure fluctuate, a certain flow rate is played. Feature ･ No other energy required for self -power ･ The rang...
Nippon Flow Cell
Set flow rate Fixed a fixed flow valve lincole valve
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It is a fixed settlement valve that supplies a certain flow rate even if the pressure changes. Feature ･ New lineup of screw -in type (HST type: N...
