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History

Singer Valve Inc.
Rotarex
Plast-O-Matic Valves, Inc.
Pace Supply Corp.
KOFLOC Corp.
Kimray
Kelly Pneumatics, Inc.
KEIHIN CO., LTD
Griswold Controls
Flomatic(R) Corporation
Cla-Val Company
Asahi Organic Chemicals Industry

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 December, 2024: 1.Cla-Val Company, 2.Kelly Pneumatics, Inc., 3.Rotarex.

Table of Contents

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List of 13 Constant Flow Valve Manufacturers

*Including some distributors, etc.

Sort by Features

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  • Company Size: largest first
  • Year Founded: oldest first
  • Year Founded: earliest first

Sort by Area

  • United States of America
  • Japan
  • Luxembourg
    • Kelly Pneumatics, Inc.
      • United States of America Address: 1611 Babcock St., Newport Beach, California, United States of America

      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.

    • Cla-Val Company
      • United States of America Address: 1701 Placentia Avenue Costa Mesa, California, United States of America

      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.

    • Flomatic(R) Corporation
      • United States of America Address: 15 Pruyn's Island Drive Glens Falls, New York, United States of America

      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.

    • Griswold Controls
      • United States of America Address: 1700 Barranca Parkway, Irvine, California, United States of America

      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.

    • Plast-O-Matic Valves, Inc.
      • United States of America Address: 1384 Pompton Avenue Cedar Grove, New Jersey, United States of America

      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.

    • Kimray
      • United States of America Address: 52 NW 42nd Street Oklahoma City, Oklahoma, United States of America

      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.

    • Admiral Valve, LLC dba CPV Manufacturing
      • United States of America Address: 503 Schoolhouse Rd, Kennett Square, Pennsylvania, United States of America

      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.

    • Singer Valve Inc.
      • United States of America Address: 2048 Industrial Blvd, Kimball, Tennessee, United States of America

      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.

    • KEIHIN CO., LTD
      • Japan Address: 1-1-6 Higashi Kanagawa, Kanagawa-ku, Yokohama-shi, Kanagawa, Japan

      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.

    • KOFLOC Corp.
      • Japan Address: 1-3 Atenoki, Kusauchi, Kyotanabe, Kyoto, Japan

      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.

    • Asahi Organic Chemicals Industry
      • Japan Address: 21st Floor Ueno Frontier Tower 3-24-6 Ueno Taito-ku, Tokyo, Japan

      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.

    • Rotarex
      • Address: 24 Rue de Diekirch, L-7440, Lintgen, Luxembourg

      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.

    • Pace Supply Corp.

      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.

Constant Flow Valve Manufacturer Ranking

*Including some distributors, etc.

Derivation Method

The ranking is calculated based on the click share within the constant flow valve page as of December 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

  1. Asahi Organic Chemicals Industry: 1,555
  2. KOFLOC Corp.: 211
  3. KEIHIN CO., LTD: 46

Newly Established Company

  1. KOFLOC Corp.: 1974 (50 years ago)
  2. Plast-O-Matic Valves, Inc.: 1967 (57 years ago)
  3. Singer Valve Inc.: 1957 (67 years ago)

Company with a History

  1. Admiral Valve, LLC dba CPV Manufacturing: 1915 (109 years ago)
  2. Rotarex: 1922 (102 years ago)
  3. Asahi Organic Chemicals Industry: 1945 (79 years ago)

Constant Flow Valve Manufacturers in United States

*Including some distributors, etc.

Global Distribution of Constant Flow Valve Manufacturers by Country

*Including some distributors, etc.

Country Number of Companies Share (%)
United States of America United States of America 8 66.7%
Japan Japan 3 25.0%
Luxembourg 1 8.3%

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List of Constant Flow Valve Products

64 products found - Page 1

64 products - Page 1

Meino

Rotary Valve CRV series

460+ people viewing

Last viewed: 1 hour ago

Response Rate
100.0 %
Response Time
43.5 hours

<Produced with our own integrated system> Nanano is particular about the production of recycling and powder equipment It is to produce and support ...

4 models listed

CRV-150-Rotary Valve CRV series
CRV-150-Rotary Valve CRV series
CRV-200-Rotary Valve CRV series
CRV-200-Rotary Valve CRV series

KOFLOC Corp.

Fluid measurement control equipment Flow control valve

620+ people viewing

Last viewed: 4 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
16.5 hours

Flow rate control valves are generally needle valves that adjust the opening of a flow path with a small orifice using a needle-like or rod-like ne...

10 models listed

MODEL KSFV-100 SERIES-Fluid measurement control equipment Flow control valve
MODEL KAFV-100 SERIES-Fluid measurement control equipment Flow control valve
MODEL 2412 SERIES-Fluid measurement control equipment Flow control valve
MODEL 2412M SERIES-Fluid measurement control equipment Flow control valve
MODEL 2450 SERIES-Fluid measurement control equipment Flow control valve
MODEL 2420 SERIES-Fluid measurement control equipment Flow control valve

Enomoto Kogyo

Mini rotary valve (fixed flow valve)

480+ people viewing

Last viewed: 3 hours ago

Our mini -rotary valve is a stable manufacturing line by improving the weaknesses of the conventional "butterfly valve", improving the crushing eff...

2 models listed

2S rotary valve-Mini rotary valve (fixed flow valve)
200A rotary valve-Mini rotary valve (fixed flow valve)

Nippon Flow Cell

Set flow rate Fixed a fixed flow valve lincole valve

1620+ people viewing

Last viewed: 3 hours ago

Standard Response

Response Rate
100.0 %
Response Time
20.0 hours

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...

4 models listed

HST type-Set flow rate Fixed a fixed flow valve lincole valve
HSG type-Set flow rate Fixed a fixed flow valve lincole valve
HYS type-Set flow rate Fixed a fixed flow valve lincole valve
HYG type-Set flow rate Fixed a fixed flow valve lincole valve

Nippon Flow Cell

Statelined valve (setting flow rate variable type) Flowmatic valve NFV type

1020+ people viewing

Last viewed: 3 hours ago

Standard Response

Response Rate
100.0 %
Response Time
20.0 hours

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...

8 models listed

NFVT- □ NS (NBR specification)-Statelined valve (setting flow rate variable type) Flowmatic valve NFV type
NFVT-LTS (PTFE specification)-Statelined valve (setting flow rate variable type) Flowmatic valve NFV type
NFVT-L □□ (for liquid)-Statelined valve (setting flow rate variable type) Flowmatic valve NFV type
NFVT-GN □ (for gas)-Statelined valve (setting flow rate variable type) Flowmatic valve NFV type
NFVG-L □□ (for liquid)-Statelined valve (setting flow rate variable type) Flowmatic valve NFV type
NFVT-L □□ (for liquid)-Statelined valve (setting flow rate variable type) Flowmatic valve NFV type

Dainichi Hanso co.,ltd.

Feeding device Leaf shutter

100+ people viewing

Last viewed: 5 hours ago

Standard Response

Response Rate
100.0 %
Response Time
21.6 hours

■Summary The lifter shutter is a unique quantitative adjustment valve that is attached to the discharge port of a hopper or chute. The leaf opens a...

Nippon Flow Cell

Statular dialect fan setter (for fan coil unit)

790+ people viewing

Last viewed: 3 hours ago

Standard Response

Response Rate
100.0 %
Response Time
20.0 hours

Even if the primary and secondary pressure fluctuate, a certain flow rate is played. Feature ・ No other energy required for self -power ・ The rang...

3 models listed

HCT type-Statular dialect fan setter (for fan coil unit)
HCT-Y type-Statular dialect fan setter (for fan coil unit)
HCT-WA type-Statular dialect fan setter (for fan coil unit)

Musashi Engineering Co., Ltd.

Volume metering valve Volumetric metering type metered discharge valve PPV-5

110+ people viewing

Last viewed: 5 hours ago

Very Fast Response

5.0 Company Review

Response Rate
100.0 %
Response Time
4.1 hours

■Capacity metering system realizes highly accurate fixed amount dispensing This is a volumetric valve. A micrometer allows fine adjustment of the d...

Daiden Co., Ltd.

Marine hydraulic valve R series Motor directly connected PC operated valve MRVMD-03

160+ people viewing

Last viewed: 56 minutes ago

Standard Response

Response Rate
100.0 %
Response Time
14.7 hours

■What is the marine hydraulic valve R series? This is a proportional control rotary type operation valve designed for ships. It mainly controls the...

KOFLOC Corp.

Precision needle valve for large flow rate MODEL 2412D SERIES

20+ people viewing

Last viewed: 3 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
16.5 hours

■Target fluid ・Gas: N₂, Air, H₂, He, Ar, O₂, CO₂, etc. ・Liquid: H₂O ■Maximum flow rate ・Gas: 150 to 350L/min (Air 20℃ differential pressure 0.1...

KOFLOC Corp.

Simple needle valve MODEL 2400 2400A SERIES

20+ people viewing

Last viewed: 3 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
16.5 hours

■Target fluid Gas: N₂, Air, H₂, He, Ar, O₂, CO₂, etc. Liquid: H₂O ■Maximum flow rate Gas: 5 to 50L/min (Air 20℃ differential pressure 0.1MPa condi...

KOFLOC Corp.

Greaseless needle valve MODEL 2420 SERIES

20+ people viewing

Last viewed: 14 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
16.5 hours

■Target fluid ・Gas: N₂, Air, H₂, He, Ar, O₂, CO₂, etc. ・Liquid: H₂O ■Maximum flow rate ・Gas: 20 to 180L/min (Air 20℃ differential pressure 0.1M...

KOFLOC Corp.

Bellows needle valve MODEL 2450 SERIES

20+ people viewing

Last viewed: 4 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
16.5 hours

■Target fluid ・Gas: N₂, Air, H₂, He, Ar, O₂, CO₂, etc. ・Liquid: H₂O ■Maximum flow rate ・Gas: 5mL/min to 50L/min (Air 20℃ differential pressure ...

KOFLOC Corp.

Precision needle valve with multi-dial MODEL 2412M SERIES

30+ people viewing

Last viewed: 4 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
16.5 hours

■Target fluid ・Gas: N₂, Air, H₂, He, Ar, O₂, CO₂, etc. ・Liquid: H₂O ■Maximum flow rate ・Gas: 5mL/min to 100L/min (Air 20℃ differential pressure...

KOFLOC Corp.

Precision needle valve MODEL 2412 SERIES

10+ people viewing

Last viewed: 14 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
16.5 hours

■Target fluid ・Gas: N₂, Air, H₂, He, Ar, O₂, CO₂, etc. ・Liquid: H₂O ■Maximum flow rate ・Gas: 5mL/min to 100L/min (Air 20℃ differential pressure...

KOFLOC Corp.

Diaphragm type air operation valve MODEL KAFV-100 SERIES

30+ people viewing

Last viewed: 3 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
16.5 hours

■Target fluids: pure water, chemical solutions, corrosive gases, etc. ・Special welded structure leaves no contamination and no need to worry about...

KOFLOC Corp.

Diaphragm type solenoid valve MODEL KSFV-100 SERIES

30+ people viewing

Last viewed: 3 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
16.5 hours

■Target fluids: pure water, chemical solutions, corrosive gases, etc. ・Special welded structure leaves no contamination and no need to worry about...

KOFLOC Corp.

Primary pressure variable gas flow controller MODEL 2204 SERIES

30+ people viewing

Last viewed: 1 hour ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
16.5 hours

■Target fluid Gas: N₂, Air, H₂, He, Ar, O₂, CO₂, etc. ■Maximum flow rate ・Gas: 10mL/min~10L/min (Air20℃) ・Inlet side (primary side) Able to mai...

KOFLOC Corp.

Secondary pressure variable gas flow controller MODEL 2203 SERIES

20+ people viewing

Last viewed: 3 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
16.5 hours

■Target fluid Gas: N₂, Air, H₂, He, Ar, O₂, CO₂, etc. ■Maximum flow rate ・Gas: 10mL/min~20L/min (Air20℃) ・Outlet side (secondary side) Able to ...

Techno Roll Co., Ltd.

Split call-out roller type computer-controlled ink density adjustment device QRD system

50+ people viewing

Last viewed: 3 hours ago

Standard Response

Response Rate
100.0 %
Response Time
23.6 hours

QRD is an automatic ink density adjustment device based on a new concept in which a divided ink drawing rubber roller is driven by an air cylinder ...

Global Parts Co., Ltd.

Flow rate adjustment unit JTM-01/JTM-02

60+ people viewing

Last viewed: 3 hours ago

Response Rate
100.0 %
Response Time
40.3 hours

Flow regulation units can be used in all types of mechanical equipment that require water flow regulation. There are effective adjustment units tha...

2 models listed

JTM-01-Flow rate adjustment unit JTM-01/JTM-02
JTM-02-Flow rate adjustment unit JTM-01/JTM-02

Seiwa Giken Co., Ltd.

Small rotary valve RV

80+ people viewing

Last viewed: 4 hours ago

Response Rate
100.0 %
Response Time
37.3 hours

■Small rotary valve for small quantity supply, ideal for testing and research applications A rotary valve that can be installed in a space-saving m...

Pantos Co., Ltd.

Return fuel treatment tank (level controller)

50+ people viewing

Last viewed: 1 hour ago

Standard Response

Response Rate
100.0 %
Response Time
26.4 hours

Level control recirculation tank ideal for fuel consumption measurement of electronically controlled gasoline diesel engines A “unrivaled” precisi...

Pantos Co., Ltd.

Bubble remover

50+ people viewing

Last viewed: 3 hours ago

Standard Response

Response Rate
100.0 %
Response Time
26.4 hours

Level control recirculation tank ideal for fuel consumption measurement of electronically controlled gasoline diesel engines A “unrivaled” precisi...

JPNEXT Co., Ltd.

Rotary valve AL MZC

50+ people viewing

Last viewed: 3 hours ago

Response Rate
100.0 %
Response Time
98.4 hours

■Features of DMN-WESTINGHOUSE Rotary/diverter valves that are trusted worldwide in the bulk handling field. These rotary/diverter valves have a pro...

JPNEXT Co., Ltd.

Rotary valve AML air lock (high pressure resistance) irregular flange

60+ people viewing

Last viewed: 2 hours ago

Response Rate
100.0 %
Response Time
98.4 hours

■Features of DMN-WESTINGHOUSE Rotary/diverter valves that are trusted worldwide in the bulk handling field. These rotary/diverter valves have a pro...

JPNEXT Co., Ltd.

Rotary Valve USAL Air Lock (High Pressure Resistant) Square Flange

60+ people viewing

Last viewed: 17 hours ago

Response Rate
100.0 %
Response Time
98.4 hours

■Features of DMN-WESTINGHOUSE Rotary/diverter valves that are trusted worldwide in the bulk handling field. These rotary/diverter valves have a pro...

JPNEXT Co., Ltd.

Rotary valve BL blowing seal

60+ people viewing

Last viewed: 3 hours ago

Response Rate
100.0 %
Response Time
98.4 hours

■Features of DMN-WESTINGHOUSE Rotary/diverter valves that are trusted worldwide in the bulk handling field. These rotary/diverter valves have a pro...

JPNEXT Co., Ltd.

Rotary valve AXL MZC

60+ people viewing

Last viewed: 53 minutes ago

Response Rate
100.0 %
Response Time
98.4 hours

■Features of DMN-WESTINGHOUSE Rotary/diverter valves that are trusted worldwide in the bulk handling field. These rotary/diverter valves have a pro...

JPNEXT Co., Ltd.

Rotary Valve BXL Blowing Seal

70+ people viewing

Last viewed: 2 hours ago

Response Rate
100.0 %
Response Time
98.4 hours

■Features of DMN-WESTINGHOUSE Rotary/diverter valves that are trusted worldwide in the bulk handling field. These rotary/diverter valves have a pro...







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