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Double Valve Product List

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[Instruction Manual] High Control Reliability Double Valve 'RSe Series'

[Instruction Manual] High Control Reliability Double Valve 'RSe Series'

"Necessary conditions for the use of this product" as well as "disconnection and movement," "disposal," etc. are included!

This document is the instruction manual for the dual pressure safety recovery control high reliability double valve "RSe Series." It includes information on "product identification," as well as "service, repair, and maintenance," and "initial operation and functioning." It contains important information for safe and proper assembly and initial operation. We encourage you to read it. [Contents (partial)] ■ About this document ■ Safety notes ■ Product identification ■ Necessary conditions for using this product ■ Contents of packaging *For more details, please refer to the PDF document or feel free to contact us.

  • Other safety equipment
  • valve
  • Double Valve

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Outside-in mounting coupling

Outside-in mounting coupling

Air sweep that completely solves powder blockage (bridge and rat hole) problems. It is effective when welding or bolting installation is not possible.

This is a set of couplings and lock nuts that can be easily installed from outside the hopper for air sweep. It is effective when air sweep cannot be installed with welding or bolting.

  • Powder Supply Device
  • Double Valve

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Data 'Safe Return Dual Pressure Application RSe Series Valve'

Data 'Safe Return Dual Pressure Application RSe Series Valve'

Publication of pilot supply conversion, valve failures, and safety system resets!

This document is an integration guide for using the "5/2 RSe series double valve" in safety return dual pressure applications. The aim of this document is to provide guidance on the connection, operation, and monitoring methods when using the 5/2 RSe for safety return dual pressure applications. It includes "Important Notes for Calculating Safety Distances," as well as information on "Loss of Supply Pressure During Operation" and "Cautions, Warnings, and Standard Guarantees." [Contents (partial)] ■ Introduction ■ Pulse Testing ■ Important Notes for Calculating Safety Distances ■ RSe Wiring (Pin Configuration) ■ Pilot Supply Conversion *For more details, please refer to the PDF document or feel free to contact us.

  • Other safety equipment
  • valve
  • Double Valve

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Data "Safety Exhaust Double Valve RSe Series"

Data "Safety Exhaust Double Valve RSe Series"

We provide various safety valves used for various safety features! Information on exhaust time and flow rate during failure is included.

This document is the integration guide for the "3/2 RSe Series Safety Exhaust Double Valve." In this document, we will focus specifically on the "3/2 RSe Series Valve" from ROSS Controls. This series is utilized for safe air exhaust functions and uses magnetic proximity sensors (PNP) to output feedback to external monitoring safety control systems. [Contents (partial)] ■ Introduction ■ Pulse Testing ■ Exhaust Time and Flow Rate in Case of Failure ■ RSe Wiring (Pin Configuration) ■ Pilot Supply Conversion *For more details, please refer to the PDF document or feel free to contact us.

  • Other safety equipment
  • valve
  • Double Valve

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Data "Hydraulic Shut-off & Tank Return Safety Valve System HBB Series"

Data "Hydraulic Shut-off & Tank Return Safety Valve System HBB Series"

Notice, Warning, Standard Guarantee, etc.! HBB Series Valve System Integration Guide

This document is an integration guide focusing on the "HBB Series Valve System." It includes information on "tank return flow and tank return flow during failure," as well as "valve operation" and "monitoring of operational failures." This series is utilized for safe hydraulic shutdown and tank return functions, and it outputs feedback to an external monitoring safety control system using a PNP inductive position switch. [Contents (partial)] ■ Introduction ■ Pulse Testing ■ Tank Return Flow and Tank Return Flow During Failure ■ HBB Wiring (Pin Configuration) ■ Pilot Supply Conversion *For more details, please refer to the PDF document or feel free to contact us.

  • Other safety equipment
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Data "Hydraulic Shut-off & Load Holding Safety Valve System HBH Series"

Data "Hydraulic Shut-off & Load Holding Safety Valve System HBH Series"

Focusing on the HBH series valve system! Includes information such as stopping time for calculating safety distance.

This document is the integration guide for the "HBH Series Valve System." This series is utilized for safety hydraulic shut-off and load holding functions, and it outputs feedback to an external monitoring safety control system using an inductive position switch (PNP). It provides detailed explanations using photos and diagrams on topics such as "HBH Wiring (Pin Arrangement)" and "Operation and Monitoring Requirements of the HBH Series Valve System." Please take a moment to read it. [Contents (Partial)] ■ Introduction ■ Pulse Testing ■ Stop Time for Safety Distance Calculation ■ HBH Wiring (Pin Arrangement) ■ Pilot Supply Conversion *For more details, please refer to the PDF document or feel free to contact us.

  • Other safety equipment
  • valve
  • Double Valve

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Data "Reference Data on Aerodynamics" *Free of Charge

Data "Reference Data on Aerodynamics" *Free of Charge

A professional in air pressure control equipment explains it clearly! It includes the principles and laws of aerodynamics, basic terminology and symbols, as well as how to determine the response time of valves.

"Aerodynamics" is the study of the mechanical properties of gases. The commonly used "compressed air" is employed in industrial applications that handle gases, and the mechanical properties of high interest are pressure, volume, and temperature. This document explains the principles and laws of aerodynamics, basic terminology, symbols, how to determine the response time of valves, and a flowchart at Cv=1. The content is designed to be easy to understand for beginners. 【Table of Contents (Partial)】 ■ Principles of Aerodynamics ■ Flow Coefficient ■ Explanation of Terms Used ■ Standard Testing ■ Response Time of Valves ■ Flowchart at Cv=1 ★ We are celebrating our 100th anniversary. Our company manufactures and sells pneumatic control valves and other pneumatic machinery and accessories. In addition to safety valves, double valves, and single valves, we also offer high-performance solenoid valves. Please feel free to contact us regarding our products. *You can view it immediately from the download. Feel free to reach out with any inquiries.

  • valve
  • Double Valve

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[Useful Materials for Machine Safety] Methods for Risk Assessment and Examples of Judgment Criteria

[Useful Materials for Machine Safety] Methods for Risk Assessment and Examples of Judgment Criteria

We will introduce a new risk assessment method for conducting risk assessments on machines/equipment that use hydraulic energy!

【Useful Materials for Machine Safety】Methods of Risk Assessment and Examples of Judgment Criteria ★ "Machine safety" refers to the practice of anticipating potential accidents that may occur when using machinery and taking measures to enhance safety in order to prevent such accidents from happening. ★ ~ The Importance of Risk Assessment for Pneumatic and Hydraulic Equipment ~ To ensure the safety of pneumatic and hydraulic machinery, risk assessment is the first step! This document introduces key points to consider when conducting a risk assessment for machines/equipment that use pneumatic and hydraulic energy. 1. General methods of risk assessment as outlined in standards such as ISO 12100 2. The pressure of the power source and the strength (energy) of the machine 3. Operating conditions of the equipment and machinery And more.

  • Hydraulic Equipment
  • Double Valve

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[Technical brochure available] "Pneumatic Safety" in Machine Safety

[Technical brochure available] "Pneumatic Safety" in Machine Safety

Explaining air pressure safety in this one book! A technical booklet on safety-related devices against misoperation and unintended activation (5 chapters in total) is now available.

ROSS provides a range of products specialized in safety, represented by items such as "L-O-X," "EEZ-ON," "P.O. Check," and "Double Valve," as well as application circuit technology for constructing pneumatic systems using these devices. When designing machinery, it is essential to implement inherently safe design strategies that anticipate mistakes and failures. A useful tool in this regard is risk assessment. This book explains pneumatic safety in machine safety. [Table of Contents] ■ Chapter 1 Safety of Control - It doesn't end with just electrical wiring. ■ Chapter 2 Lockout/Tagout (LOTO) and Energy Isolation ■ Chapter 3 ANSI Z244 - Monitored Power Systems ■ Chapter 4 Risk Assessment and Pneumatic Systems ■ Chapter 5 Q&A *Technical pamphlet available! *For more details, please visit our website for materials or feel free to contact us. https://rossasia.co.jp/column/

  • valve
  • Double Valve

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Hydraulic Cut-off & Tank Return Safety Valve "HBB Series"

Hydraulic Cut-off & Tank Return Safety Valve "HBB Series"

The pipe sizes are compatible with 1/2” to 1-1/4”! Redundant valve system with external monitoring specifications.

The "HBB Series" is a redundant 3/2 valve system for external control that meets the needs and requirements for safe hydraulic shut-off and tank return for machines equipped with hydraulic control. By introducing a hydraulic double valve, not only is machine safety improved, but it also standardizes hydraulic safety solutions and simplifies complex circuit designs. The test port included in the double valve allows for quicker troubleshooting and reduces machine downtime, enabling improved operational efficiency and cost savings. 【Features】 ■ Shuts off hydraulic supply pressure and returns secondary side pressure to the tank ■ Equipped with a relief valve on the inlet side ■ Maximum flow rate is 50 gpm (189 l/min) *For more details, please refer to the PDF document or feel free to contact us.

  • Hydraulic Equipment
  • Double Valve

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【Data】Comparison of the safety of monitor-equipped double valves with other valves.

【Data】Comparison of the safety of monitor-equipped double valves with other valves.

Achieving safe press processing! Introducing the safety of double valves with monitors.

This document introduces how double valves with monitors ensure safety compared to conventional single valves and double valves without monitors. In the control valves of press machines, by introducing double valves with monitors, accidents that cannot be prevented by workers alone can be avoided, ensuring high safety. With our double valves, monitors can be retrofitted, so if you are using double valves without monitors, please consider upgrading to those with monitors to enhance safety. [Contents] ■ Differences between single valves and double valves without monitors during machine failures - ON failure - OFF failure ■ Differences between without monitor and with monitor *For more details, please refer to the PDF document or feel free to contact us.

  • valve
  • Double Valve

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[Information] Let's introduce a double valve with a monitor based on European and American standards.

[Information] Let's introduce a double valve with a monitor based on European and American standards.

Upgrade your safety management! Introducing the double valve with a monitor.

This document introduces "monitor-equipped double valves" as an example of enhancing safety management standards. The monitor attached to the double valve has the function of detecting malfunctions and preventing restarts. If the press machine operates while malfunctioning, there is a possibility of accidents; however, the monitor can prevent accidents by cutting off the electrical and pneumatic circuits within the double valve. Our company offers a wide range of products that meet global standards, so if you have any concerns about safety, please feel free to consult us. [Contents] ■ The changing awareness of safety management in Japan ■ Comparison of safety management between the United States, Europe, and Japan ■ "Monitor-equipped double valves" that guarantee high safety *For more details, please refer to the PDF document or feel free to contact us.

  • valve
  • Double Valve

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[Information] Creating a Safe Environment through Workplace Risk Assessment

[Information] Creating a Safe Environment through Workplace Risk Assessment

The key is to "quantify"! An introduction to risk assessment in the workplace and operations.

This document introduces the specific methods and points of caution for conducting risk assessments in the workplace and during operations. "Risk assessment," which refers to the process of identifying, clarifying, and evaluating risks present in the field, is extremely important for the operation of machinery and systems. To achieve a truly safe workplace, it is necessary to conduct risk assessments based on extensive knowledge and the latest information. [Contents] ■ What is risk assessment? Check the methods and points of caution - The necessity of risk assessment - How to conduct a risk assessment - Points of caution in risk assessment ■ High risk! Risk assessment of control valves *For more details, please refer to the PDF document or feel free to contact us.

  • valve
  • Double Valve

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Is it dangerous to take MTTF at face value? The relationship between MTTF and reliability.

Is it dangerous to take MTTF at face value? The relationship between MTTF and reliability.

The lifespan of a product is a major selection point! Introducing the relationship between product reliability and MTTF.

This document introduces the relationship between product reliability and MTTF (Mean Time to Failure). MTTF is often used as an indicator to understand the lifespan of a product. If the MTTF of a product is known, one can grasp the average lifespan of that product. Additionally, while utilizing MTTF as one of the indicators, it is important to be aware that theoretically, there is approximately a 63% probability of failure occurring before reaching the MTTF. [Contents] ■ Reliability indicating the probability of the product operating ■ Relationship between MTTF and reliability ■ Reference URL *For more details, please refer to the PDF document or feel free to contact us.

  • valve
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[Data] Strengthening factory competitiveness with monitor-equipped double valves.

[Data] Strengthening factory competitiveness with monitor-equipped double valves.

Introducing various features of world-class double valves with monitors!

This document introduces various features of world-class monitored double valves. The control valves mounted on press machines in primarily metal pressing factories must have a safe mechanism, as they are responsible for the ON/OFF operation of the press machines. Our company offers a variety of double valves that boast world-class safety performance. It is also possible to install monitors on existing double valves, so please feel free to consult with us. [Contents] ■ Why are monitored double valves safe? ■ Improvement of cost performance and consideration for the environment *For more details, please refer to the PDF document or feel free to contact us.

  • valve
  • Double Valve

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Understanding the flight method (unofficial) of category-specific architecture.

Understanding the flight method (unofficial) of category-specific architecture.

Introducing a way to understand the flight-style (unofficial) specifications of each category in SO13849-1 architecture!

Among the four items that determine the Performance Level (PL) of ISO13849-1, there is the category (Categories). It is divided into five levels: B, 1, 2, 3, and 4, according to the specified architecture, with the required safety functions becoming stricter at each level. This is a simplified (informal) method to understand the safety levels of the specified architecture. In this document, we will convey a simple way to understand the surface aspects of this safety category using airplanes. [Contents] ■ Category B ■ Category 1 ■ Category 2 ■ Category 3 ■ Category 4 *For more details, please refer to the PDF document or feel free to contact us.

  • Hydraulic Equipment
  • Double Valve

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Let's check the laws and regulations to protect the workplace environment!

Let's check the laws and regulations to protect the workplace environment!

Let's check what laws and regulations have been established to protect the workplace environment where we work!

This document introduces the "Labor Safety and Health Act," which serves as the foundation for protecting workplace environments. The "Labor Safety and Health Act," established in 1972, aims to ensure the safety and health of workers in the workplace and promote the creation of a comfortable work environment by implementing comprehensive and planned measures to prevent labor accidents. This includes establishing hazard prevention standards, clarifying responsibility systems, and promoting voluntary activities in conjunction with the Labor Standards Act. Additionally, it includes information on the "Labor Accident Prevention Plan," which outlines key areas the government is focusing on to reduce labor accidents. [Contents] ■ About the "Labor Safety and Health Act" ■ About the "Labor Accident Prevention Plan" *For more details, please refer to the PDF document or feel free to contact us.

  • Hydraulic Equipment
  • Double Valve

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【Data】It takes more time than expected...

【Data】It takes more time than expected...

The exhaust port diameter of the ROSS high-speed manual pressure relief valve is equal to or larger than that of the inlet and outlet sides, allowing for the discharge of residual pressure at one of the fastest speeds in the industry.

Scene content: A machine maintenance technician performing regular machine maintenance during the Golden Week. Following company rules, they search for the residual pressure relief valve to shut off all power energy to the machine, cut off the supply air, and begin venting the residual pressure air in the piping. With a typical ball valve, it takes much longer than expected to vent all the residual pressure air in the piping. If one approaches the machine with the mindset of "Well, as long as it's mostly vented, it's okay," the compressed air that is still present may suddenly cause the cylinder to move.

  • Other safety equipment
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[Information] I have conducted a risk assessment for the final drive machinery!

[Information] I have conducted a risk assessment for the final drive machinery!

The HBB series is a high control reliability hydraulic control valve in category 4, PL "e" (currently obtaining third-party certification).

Content of the scene After conducting a risk assessment of the machinery, the failure of the power control element (cylinder control valve) was determined to be a significant risk. It is necessary to introduce products that meet the high safety requirements corresponding to the category/performance level. The introduced valve is a highly reliable, dual-channel redundant valve that ensures power (hydraulic) is reliably cut off even if the hydraulic cylinder control valve fails. In conjunction with the interlock, it cuts off the supply pressure and returns the power (hydraulic) of the moving mold to the tank, allowing the operator to safely perform mold changes.

  • Other safety equipment
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[Information] Usual press work

[Information] Usual press work

Is it really safe because it has a double valve? It is safer than a single valve, but a double valve only has two valve bodies inside.

Scene content: Inside the double valve, two valve bodies repeatedly open and close almost simultaneously. When one side does not close (failure) after the valve is turned off, the valve body on the functioning side closes, and the secondary side air is exhausted, causing the press to stop. However, the double valve can still operate if power is restored even when one side is malfunctioning. Air leakage occurs from the valve's exhaust port, but this "failure indication" is difficult to notice.

  • Other safety equipment
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The valve was broken...

The valve was broken...

Do you notice the malfunction? Valves without monitoring devices make it difficult to detect failures. If both valve bodies fail, the press will not stop...

Scene content As usual, the press operation was underway, but one side of the valve had already malfunctioned. The operator continued to operate without noticing the signs of one-sided failure (air leakage from the exhaust port)... When the power to the valve was turned OFF, both valve bodies failed, resulting in none of the valves closing, which meant that secondary air could not be exhausted, and the press would not stop. The operator could face a "pinching accident."

  • Other safety equipment
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The peace of mind provided by monitored valves.

The peace of mind provided by monitored valves.

Valves with monitoring devices can detect valve body failures. Operators can focus on their work with peace of mind.

Content of the scene A valve with a monitoring device performs 1) fault detection, 2) output of fault signals, and 3) prevention of restart when a failure occurs on one side. In particular, 3) ensures that the valve does not operate even if power is supplied during a fault, thereby ensuring the safety of the operator. With monitoring, the operator is freed from checking for air leaks and can focus on more productive tasks.

  • Other safety equipment
  • Double Valve

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Proposal for Reducing Compressed Air Consumption: "High-Durability Solenoid Valve for Pulse Blow"

Proposal for Reducing Compressed Air Consumption: "High-Durability Solenoid Valve for Pulse Blow"

Compressed air is one of the expensive forms of energy produced by operating a compressor. The majority of it is used in the air blow (cooling) process.

This is a poppet-type solenoid valve with high durability and high responsiveness. By rapidly turning the poppet solenoid valve ON/OFF, it is possible to intermittently blow air (cooling) and significantly reduce the amount of compressed air used. By accurately controlling the frequency (the number of ON/OFF cycles per second) and the duty cycle (the ratio of ON to OFF), it is possible to maintain sufficient blowing force required for the application while reducing compressed air usage by more than 50%. Additionally, our poppet valves are not disposable. We sell internal component sets such as O-rings and pistons, so by replacing worn parts, you can continue to use the main unit. The size of the pulse blow valve is wide-ranging, with options available up to super large diameter (65A)!

  • Pneumatic Equipment
  • Double Valve

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[Case] Material flow issues with the dry sorbent injection (DSI) method at a power company.

[Case] Material flow issues with the dry sorbent injection (DSI) method at a power company.

Installed in the trough of the screw conveyor! It continues to operate without any compliance issues.

A major coal-fired power plant in the Midwest of the United States needed to meet federal emissions standards while maximizing power output. To achieve this, the plant installed a Dry Sorbent Injection (DSI) system designed to reduce emissions of hydrochloric acid and sulfur dioxide. However, DSI technology relies on poorly flowing bulk solid materials such as hydrated lime, trona, soda ash, and sodium bicarbonate. Therefore, a "VA-51 AirSweep" was installed in the trough of the screw conveyor. As a result, the power plant has been continuously operational since the fall of 2015, with no compliance issues, thanks to the support of the DSI system and the Airsweep material activation system. *For more details, please refer to the PDF document or feel free to contact us.*

  • Emulsifier/Disperser
  • Double Valve

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[Case] Solving several fluidity issues associated with titanium dioxide treatment.

[Case] Solving several fluidity issues associated with titanium dioxide treatment.

Solve process issues! Achieve greater production capacity than expected while producing high-quality products.

To manufacture products of superior quality, international major paint and coating manufacturers needed to use a new grade of titanium dioxide (TiO2). The new material consists of finer and lighter particles, which tend to form bridges over the vibration feeder system already installed in the storage silos. Therefore, the feeder was replaced with a live bin bottom, and four "VA-12 (1-1/2") AirSweep units" were installed approximately 60 cm above the live bottom. By solving process issues using this system, we are producing high-quality products while achieving a production capacity greater than expected. *For more details, please refer to the PDF document or feel free to contact us.*

  • Emulsifier/Disperser
  • Double Valve

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[Case Study] AIRSWEEP Crash Flow Issues in Mineral Processing Plants

[Case Study] AIRSWEEP Crash Flow Issues in Mineral Processing Plants

The filling time for the Furecon bag has been reduced from 1 hour to 2 minutes! Productivity has increased by 3000%.

Alumina-based industrial mineral processors handle over 120,000 tons of materials annually for the refractory and abrasive industries. The rapid transfer of processed materials from storage containers to bulk bags has been an ongoing issue regarding brand identity guidelines at the factory. Therefore, a trial run was conducted for the pneumatic flow assistance system, "AirSweep System," designed to provide on-demand bulk material flow. As a result, the product eliminated all blockages near the container outlet, reduced the filling time of bulk bags from 1 hour to 2 minutes, and improved productivity by 3000%. *For more details, please refer to the PDF document or feel free to contact us.

  • Emulsifier/Disperser
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[Example] The material activation system continuously feeds the ingredients for pet food.

[Example] The material activation system continuously feeds the ingredients for pet food.

Strategically placed in the dry mix container! Flowing efficiently and safely through the processing system.

For pet food manufacturers, avoiding cross-contamination is central to the manufacturing process. "Bulk material flow issues," such as rat holes, bridging, and other material blockages, reduce the flow of materials through the processing system and increase the likelihood of cross-contamination. In 2018, research was conducted to replace the ineffective material activation system in use at the time with a new system, planning the introduction of "AirSweep." By converting pet food ingredients from vibrators and air-powered hammers to this unit, the processing system has become more efficient and safe in its flow. *For more details, please refer to the PDF materials or feel free to contact us.*

  • Other powder equipment
  • Powder Conveyor Device
  • Double Valve

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[Case Study] Achieved cost reduction by reducing wheat flour usage by 62%.

[Case Study] Achieved cost reduction by reducing wheat flour usage by 62%.

Introducing a case where the amount of flour washed away was reduced by 62% and labor was reduced by 42%!

A major manufacturer of food, food ingredients, and flavor products in the United States uses ribbon blender machines for custom mixing by ingredient batch. The company has manufacturing facilities in 25 countries around the world and was looking for ways to improve the discharge process between custom batches of raw materials. To this end, they experimentally installed eight "VA-12-TRI-TRI units" on the ribbon blender and associated hopper, aiming to streamline the cleaning process, with four units positioned on both sides of the blender, about 0.3 meters above the bottom. As a result, the company reduced the amount of flour washed away by 62% and decreased labor by 42%. *For more details, please refer to the PDF document or feel free to contact us.

  • Other powder equipment
  • Powder Conveyor Device
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[Case Study] Resolving blockages and alleviating stress in the manufacturing site.

[Case Study] Resolving blockages and alleviating stress in the manufacturing site.

A case in which significant improvements in material flow and worker safety have been confirmed.

Bunge is a U.S.-based agribusiness and food ingredient manufacturer that is working to improve the global food supply chain. They were looking for a complete and convenient way to achieve on-demand flow in the operation/process of filling rice bran into full containers. After reviewing options, they decided to implement the "AirSweep System" and installed four "AirSweep VA-06 units" at a 90-degree angle on the sloped walls of the rice bran containers. As a result, they confirmed significant improvements in material flow and worker safety. *For more details, please refer to the PDF document or feel free to contact us.*

  • Other powder equipment
  • Powder Conveyor Device
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Example: Separating sticky foods like an air knife.

Example: Separating sticky foods like an air knife.

There is no bridging happening at all! This system is being implemented in all factories in the United States.

The cheese manufacturer found themselves in a very troublesome situation. The concentrated whey protein, which has a very high moisture and fat content, tends to bridge during discharge, and due to the solidified material, a fire occurred in one of their bug houses. Bridging needed to be urgently resolved for safety reasons. Therefore, they introduced the "AirSweep USDA 135." As a result, there has been no bridging at the cheese manufacturer, and they are now implementing this system in all their facilities across the United States. *For more details, please refer to the PDF materials or feel free to contact us.*

  • Other powder equipment
  • Powder Conveyor Device
  • Double Valve

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