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Constant Flow Valve Product List and Ranking from 5 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

Constant Flow Valve Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. ケイヒン Kanagawa//others
  2. 横田製作所 Hiroshima//Industrial Machinery
  3. 流体工業 Tokyo//Testing, Analysis and Measurement
  4. ETO Co., Ltd. Kanagawa//Machine elements and parts
  5. 5 富士精工 Kanagawa//Automobiles and Transportation Equipment
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Constant Flow Valve Product ranking

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. Direct-acting constant flow valve "Uniflow Valve UF Series" 横田製作所
  2. Constant Flow Valve "FVG Series" 流体工業
  3. Valve - Constant Flow Valve (Control Valve) ケイヒン
  4. 4 Needle-type constant flow valve "NSPW/NFFW series" ケイヒン
  5. 4 Constant Flow Valve Series ETO Co., Ltd.

Constant Flow Valve Product List

1～8 item / All 8 items

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Needle-type constant flow valve "NSPW/NFFW series"

Needle-type constant flow valve "NSPW/NFFW series"

For reducing environmental impact! This control valve features a simple structure that achieves long life, high durability, and maintenance-free operation.

The "NSPW/NFFW series" is a constant flow valve (flow control valve) that can be used with water and other special fluids (such as seawater and corrosive fluids). It does not require a power supply or external operation, allowing for flow control with just this unit, which maintains a constant flow rate on the secondary side. Its simple structure ensures long life and high durability. It has a long track record in various devices, factory equipment, and oil plants. Additionally, a low flow type "FPC series" is also available. 【Features】 ■ Usable with water and other special fluids ■ Maintains a constant flow rate regardless of pressure differential changes before and after the valve ■ Simple structure ■ Achieves long life, high durability, and maintenance-free operation ■ Suitable for reducing environmental impact, such as water conservation measures and preventing overflow *For more details, please refer to the PDF materials or feel free to contact us.

  • valve

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Needle Type Flow Control Valve "FPC Series"

Needle Type Flow Control Valve "FPC Series"

Achieving long lifespan, high durability, and maintenance-free! Ideal for water-saving measures!

The "FPC Series" is a valve that maintains a constant flow rate on the secondary side regardless of pressure fluctuations on the primary side. Due to its simple structure, it offers high longevity and durability. It is suitable for reducing environmental impact, such as water-saving measures and preventing overflows. We also offer a high flow rate type, the "NSPW/NFFW Series." If you are considering using it with special fluids other than water (such as seawater or corrosive fluids), please feel free to consult us. 【Features】 ■ Maintains a constant flow rate regardless of pressure differential changes across the valve ■ Simple structure ■ Achieves long life, high durability, and maintenance-free operation ■ Suitable for reducing environmental impact, such as water-saving measures and preventing overflows *For more details, please refer to the PDF document or feel free to contact us.

  • valve

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Valve - Constant Flow Valve (Control Valve)

Valve - Constant Flow Valve (Control Valve)

Supports small to large flow rates! This is a constant flow valve series with long life, high durability, and maintenance-free features.

We offer a variety of valves that can achieve a constant flow rate regardless of pressure fluctuations. By receiving the fluid pressure with a piston and adjusting the passage area based on the balance with spring force, a constant flow rate can be maintained. Furthermore, since it is self-sustaining and can maintain a constant flow rate, there is no need for a power supply or system setup. We have a lineup of flow rates ranging from 0.7 to 2000 L/min (with separate consultation available for 2100 to 10000 L/min), suitable for water, oil, and other fluids. These valves are applicable for various uses, including ballast water treatment and tanker shipments. 【Features】 ○ Capable of maintaining a constant flow rate regardless of pressure fluctuations ○ Self-sustaining, eliminating the need for a power supply or system ○ Extensive lineup from 0.7 to 2000 L/min ○ Usable for water, oil, and other fluids ○ Available in various materials ● For more details, please contact us or download the catalog.

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  • valve

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Direct-acting constant flow valve "Uniflow Valve UF Series"

Direct-acting constant flow valve "Uniflow Valve UF Series"

Proven performance! Introducing freely adjustable flow settings and a constant flow control valve!

The "Uniflow Valve UF Series" is a direct-acting constant flow valve that automatically maintains a specified flow rate regardless of fluctuations in primary pressure, thanks to its built-in control functions. By adopting a balanced structure, the flow setting operation requires low torque and is independent of the supply pressure. Its unique pressure reduction mechanism allows for a very small allowable cavitation coefficient to be set. With the built-in lift-type adjustment valve, it enables flow control that is close to linear characteristics, combining the functions of constant flow and an adjustment valve, making it a user-friendly automatic control valve suitable for various applications. 【Features】 ■ Excellent constant flow characteristics (variable constant flow type) ■ Extremely low operating torque ■ Simple direct-acting design ■ Cavitation characteristics ■ Flow control characteristics ■ High performance *For more details, please refer to the PDF materials or feel free to contact us.

  • Other pumps
  • Flow Control

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Constant Flow Valve Series

Constant Flow Valve Series

We conduct various tests based on your quantity and specifications! Manufacturing your original products.

We would like to introduce the "Constant Flow Valve Series" handled by Eto Co., Ltd. This control valve self-adjusts the flow rate regardless of the inlet water pressure. It does not require any power source such as electricity and can always provide a constant flow rate (it is not a variable flow type). We will propose types and shapes according to the application, flow rate, and usage environment. Please feel free to consult us when needed. 【Product Lineup】 ■ Micro Constant Flow Valve [12–120g/min] ■ Small Flow Constant Flow Valve [0.1–1.0L/min] ■ SP Constant Flow Valve [2–100L/min] *For more details, please download the PDF or feel free to contact us.

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  • Water Hydraulic Equipment
  • Flow Meter
  • Weighing Control

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Desalination Control Valve *Case study collection available!

Desalination Control Valve *Case study collection available!

A constant flow valve capable of controlling flow rates from 0.7 to 10,000 L/min! For seawater desalination systems, refineries, and flow meter/pump protection!

Our company offers a "constant flow valve" that supports both "long lifespan and high durability" due to its simple structure. No power supply is required. We have the "FPC series" for small flow rates and the "NSPW/NFFW series" that can handle flow rates up to 10,000 L/min. Currently, we are providing a "reference document" that includes explanations of features and functions, as well as case studies on the implementation of seawater desalination systems, oil refineries, and fire protection equipment. [Contents (excerpt)] ■ Structure and operating principle of the constant flow valve ■ Features and functions of the constant flow valve ■ Our product lineup ■ Case studies *You can view detailed information immediately from the [Download] section.

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  • 4.jpg
  • valve
  • Flow Control

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Control valve for residential equipment - constant flow valve

Control valve for residential equipment - constant flow valve

Essential for flow control and water saving in water heaters and toilets! Numerous delivery achievements to major housing equipment manufacturers!

The constant flow valve discharges a constant amount of water regardless of fluctuations in inlet water pressure. - Spring-type constant flow valve Set flow rate: 10 to 22 L/min - Diaphragm-type constant flow valve Set flow rate: 0.1 to 22 L/min ■ Additionally, it can accommodate very small flow rates from a few grams per minute to several tens of grams per minute, as well as large flow rates of over 50 L/min. ▼ For more details, please contact us or request documentation.

  • Flow Control
  • valve

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Constant Flow Valve "FVG Series"

Constant Flow Valve "FVG Series"

No need for power supply, air pressure, or regulators! Maintains a constant flow rate even when fluid pressure fluctuates.

The "FVG Series" is a self-operated constant flow valve that operates based on the pressure difference between primary and secondary pressures. No external inputs such as power supply or air pressure are required at all. It easily controls a constant flow even with pressure changes. Additionally, we offer other products such as the variable flow type constant flow valve "NFVT Series" for small flow rates and the all-metal flow meter equipped constant flow valve "MP-NFVT Series." 【Features】 ■ No need for power supply, air pressure, or pressure gauges ■ Free to change the set flow rate ■ Can be manufactured for gases ■ Accurate precision (within ±2% F.S.) ■ Quick response speed *For more details, please refer to the PDF document or feel free to contact us.

  • Other inspection equipment and devices
  • valve

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