Safety Valves, Control Valves（Control Side, Thread Connection Type：Rc）

Safety Valve, Relief Valve AL-150 Series

YOSHITAKE

[Features]
・ It is a versatile type that supports fluids such as steam, air, water, and oil
・ The pressure division was subdivided, and ultra-precise finishing by advanced technology was realized to pursue the best performance
・ Main parts (valve body, valve seat) and adjustment spring are made of stainless steel, and SCS14A (equivalent to SUS316) with excellent corrosion resistance is used for main parts
・ The sealed structure prevents fluid from leaking to the outside

Relief Valve AL-52F-95 Series for Hot water Equipment

YOSHITAKE

Attached to the piping system of a hot water heat exchanger, when there is a rise in pressure in the system due to the expansion of the water or pressure rise due to the abnormality, it will be used for the purpose of ensuring the safety of the equipment.

[Features]
▪ A diaphragm with a large effective pressure area is used in the pressure receiver, so the spouting amount during initial operations is considerable, and spouting at start and end pressure is stable.
· The water contact part and mechanical part are separated by a diaphragm and are therefore hygienic.
· A manual lever is attached, so actuation, level check and drainage from the whole system are easily performed.
· The diaphragm has superior durability as it is made from heat resistant and water resistant synthetic rubber.
▪ The AL-72F relief valve uses parallel screws in the exit connection that makes piping easy with the cap nut.
▪ The AL-52S relief valve has superior corrosion resistance properties because its valve seat is made from stainless steel. This makes it suitable for use in electric water heaters.

AF-17N Air Vent Valve

VENN

Building equipment, housing and hot water boiler products with main bodies made from bronze and are complaint with government specifications

[Features]
· Small air vent valve to be used in a pipe, hot water boiler, fan coil, small/medium pressure tank, solar system, or others.
· Operates stably due to the BBC (bubble dispersion) method, so water entrainment discharge does not occur.
· The bronze made main body is compliant with government specifications.
· Besides having a female screw shape, the vent is also available with union fitting, and tube fittings.
· Compact and capable up to 1.0MPa.
▪ Equipped with manual shut-down mechanism.

Air Vent, 11-AV Series

YOSHITAKE

Operates at a greater output across a wide range of pressures. The free-floating lever is less prone to wearing. The valve body and valve seat are made of highly durable hardened chrome steel.

CAD ：

2D

Relief Valve, AL-260 Series

YOSHITAKE

[Features]
・ Main parts are made of stainless steel, and all wetted parts are made of corrosion resistant material
・ By adopting a dashpot structure, it has a great effect on lines with large pulsations and pressure fluctuations
・ Chattering and hunting are reduced
・ It has stable operation against back pressure changes during continuous blowing

Pressure Reducing Valves for Hot and Cold Water / Oil/Air, GD-6 Series

YOSHITAKE

Small, and lightweight, with constant secondary pressure accuracy even at small capacities.

CAD ：

2D

RD-40, 41 Type Pressure-Reducing Valve (for Steam) Mini-Benten

VENN

For use in food machinery, medical equipment, laundry equipment, and other steam-based machinery

[Features]
- A direct-acting, pressure-reducing valve that is ideal for precise control of steam pressure for various equipment.
- Compact and lightweight; optimum for integration into devices.
- Optimal for items that need to be free of rust, such as food, kitchen equipment, medical equipment, laundry machines, and air conditioners (humidifiers).
- Stainless steel body suitable for higher-grade vapor lines.
- Provides large flow rates (heat) required when starting up equipment.
- Main body is made of bronze or stainless steel; main parts are made of stainless steel for clean vapor.
- Secondary side pressure can be smoothly adjusted with the manual handle on the automatic lock mechanism.
- Uses SUS316L bellows and a built-in strainer for high reliability.

Pressure Reducing Valve for Steam, Gas and Liquid, RD-3H Series

VENN

[Features]
· Pilot type direct-acting, pressure-reducing valve that is used in non-controllable, small flow-rate locations. It has good pressure-control with excellent wide pressure range adjustment characteristics. The main parts are made from SUS (for steam).
· Note: These valves differ for use with stream, air, vapor, and liquid.

Direct Acting Steam Pressure Reducing Valve - RE1 Type

MIYAWAKI

[Features]
・ Ultra compact and lightweight design, about half the size and weight of conventional products
・ Reliable operation, effective in saving energy and improving productivity
・ Increased rated flow rate by devising original orifice plate
・ The control bellows by original device has excellent durability
・ The handle is made of special plastic, easy to grip and shape with excellent heat dissipation
・ Sharp and simple design. Plus forged body is perfect for beautiful styling
・ Improved gaskets make maintenance easier
・ One of the attractions of this performance is that it is inexpensive
[Applications]
・ Cleaning / apparel industry
・ Food industry / dyeing industry
・ Ideal for heating equipment, sterilizers, rubber vulcanizers, etc.

Safety Valve, Relief Valve AL-140 Series

YOSHITAKE

[Features]
・ It is made entirely of stainless steel, SCS14A (equivalent to SUS316) with excellent corrosion resistance is used for the main part
・ The sealed structure prevents fluid from leaking to the outside

Safety Relief Valve, AL-150L Series

YOSHITAKE

[Features]
· The main parts (valve body and seat) and adjustment springs are made of stainless steel; in particular, the main parts use SCS14A (equivalent to SUS316) which has excellent corrosion resistance.
· With lift valve lever types, discharge inspections can be performed manually at a pressure that is 75% or more of the discharge pressure.

CAD ：

2D

Pressure Reducing Valves for Hot and Cold Water, GD-28-NE Series

YOSHITAKE

Corrosion-resistant materials are used in the liquid-contacting parts. Superior chlorine resistance against running cold and hot water. The top section can be disassembled unidirectionally, allowing for internal inspection.

CAD ：

2D

Pressure Reducing Valve for Water Supply, GD-55-80 Series

YOSHITAKE

Used for supplying water to a hot-water heat exchanger while maintaining a predetermined water supply pressure. Besides the pressure reducing function, the valve includes a backflow prevention function, a negative-pressure operation function, a pressure balancing function, and a strainer.

CAD ：

2D

Pressure Reducing Valve for Water Supply, GD-56-80 Series

YOSHITAKE

It's used for the purpose of water supply of hot water for the heat exchanger, and then used maintaining a predetermined water supply pressure. In addition to the pressure reducing function, a backflow prevention function, a negative-pressure operation function, a pressure balancing function, and a strainer are built in.

CAD ：

2D

RP-7, Pressure-Reducing Valve (for Steam) Benten

VENN

For steam cleaning of food equipment, disinfection equipment, cleaning equipment, etc.

[Features]
· Compact pilot-operated pressure-reducing valve used in equipment and devices with a relatively low flow rate.
· Compact and lightweight (up to 50%, compared to other in-house products); device integration is supported.
· Adoption of a piston guide structure and special seal ring makes control stable from lower flow rates to the maximum rated flow rate.
· Manual handle control with auto locking mechanism makes pressure adjustment easy.
· Compact design.

RD-43N, Pressure Reducing Valve for Door-to-Door (for Water / Hot Water), Benkei

VENN

A pressure-reducing valve for use in small-capacity, door-to-door water and hot water supply pipes installed inside studio apartments, etc.
· For larger capacity and general complex housing, use types RD-44N, 47N, etc.

[Features]
· Utilizes chlorine water-resistant EPDM.
· Sanitary design that prevents pooling of liquids.
· Reliable construction from low-to-high differential pressure.
· These are non-disassembly type pressure-reducing valves for safe and secure construction.
· Post-construction hydraulic testing can be performed with the reducing valve installed.
· Utilizes a new, simple test gag method.

FD-6N, Fixed Flow Rate Valve (for Individual Resident Water Supply/Hot Water Supply), Benkei

VENN

In addition to mainly being used in central hot water supply systems for housing complexes, high-rises, and the like, this fixed flow rate valve is also used in water supplying systems. This adjustable valve automatically restricts flow rates so that flow rate is fixed in response to fluctuations in primary side pressure.

[Features]
• By using this fixed flow rate valve, it becomes possible to appropriately distribute supplied water and hot water volumes to each residence.
• As a result, system design and construction work are simplified, energy and water are saved, and water hammer is reduced.
• Mounting position can be changed to any orientation.
• Wide working differential pressure range.
• The simple structure takes advantage of rubber elasticity to maintain a stable flow rate.

RD-25SN, 50SN Series Pressure-Reducing Valve for Water Service

VENN

A pressure reducing valve for supplying water to small boilers and electric water heaters. Can be freely mounted horizontally or vertically.

[Features]
- Chlorine water-resistant EPDM for improved durability (RD-50SN series).
- Low-noise type (RD-50SN series).
- Mounting position can be changed to any orientation (except with strainer cap upwards).

SL-35N/35HN Type, Relief Valve for Hot Water Equipment

VENN

Diaphragm type relief valve for small hot water boilers and electric water heaters. Used as a relief valve for pressure caused by thermal expansion and on the secondary side of pressure reducing valve.

Pressure Reducing Valve for Water, Liquid, Air, Gas, RD-20, 20N Series, [Heisei]

VENN

[Features]
· A stainless steel, small-size pressure reducing valve that can be used for both liquid and gas supply pipes—especially in rust-intolerant places where bronze cannot be used. In addition, it can be used for stainless steel piping in door-to-door water supply systems.
· Stainless steel and synthetic rubber are used for the liquid-contacting parts and spring casings for excellent corrosion resistance.
· The carefully designed flow channel, utilization of square spring, etc., provide a significant size and weight reduction.
· Freely adaptable installation positon.
· Easy to maintain.
· Can be used for liquid and gas, with a primary side pressure of 2.0 MPa.

AF-4 Series Air Vent Valve

VENN

The equipment is used in building facilities and factory facilities, etc. It is an air vent valve for fluids. It automatically discharges the air that accumulates in the pipes and the air inside an airtight tank and makes the fluid flow smoothly.

[Features]
▪ Due to the improved airtightness, it has adopted the swing valve body.
▪ The amount of air discharged from the equipment is comparatively large.
▪ It has a simple structure that allows easy handling.
· AF-4CN is a rust-resistant nylon-coated product.

AF-10 Series, Air Vent Valve

VENN

A stainless steel air relief valve with excellent corrosion resistance and durability, with a strainer built-in to the main body, and with air intake and exhaust functions.

[Features]
· Easy design installation possible with the built-in strainer.
· Stainless steel with superior corrosion resistance and durability.
· The discharge port can be freely rotated 360°, so installation is simple.
· Equipped with a manual shut-down control.

Relief Valve, AL-250 Series

YOSHITAKE

[Features]
・ Since it is entirely made of stainless steel, it has excellent corrosion resistance and durability
・ By adopting a dashpot structure, it has a great effect on lines with large pulsations and pressure fluctuations. Chattering and hunting are reduced
・ It has stable operation against back pressure changes during continuous blowing

CAD ：

2D

Safety Relief Valve, AL-140T Series

YOSHITAKE

[Features]
・ Since it is entirely made of stainless steel, it has excellent corrosion resistance and durability
・ A soft seat is used for the main part, and it has excellent airtightness in the valve seat
・ It is ideal for applications where valve seat leakage cannot be tolerated
・ The sealed structure prevents fluid from leaking to the outside

CAD ：

2D

Safety Relief Valve, AL-150TML Series

YOSHITAKE

Uses a lift valve lever mechanism for manually performing blowout inspections. The valve body/valve seat and adjustment spring are made from stainless steel. Anti-corrosive SCS14A is used in the main parts.

Safety Relief Valve, AL-150TR Series

YOSHITAKE

A handle-operated valve for changing the pressure easily. Usable as a relief valve.

[Features]
· The AL-150 is a handle-operated valve for changing the pressure easily. Therefore, this valve can be used as a relief valve.
· Soft seats are utilized in the main parts for a superior valve seat airtight performance.
· Optimal for applications in which valve seat leaks are unacceptable.
· The main parts (valve body and seat) and adjustment springs are manufactured from SCS14 stainless steel (SUS316 EQUIV) with excellent anti-corrosive properties.
· The sealed construction prevents fluid from leaking outside.

Safety Relief Valve, AL-150T Series

YOSHITAKE

[Features]
· Soft seats are utilized in the main parts for a superior valve seat airtight performance. Optimal for applications in which valve seat leaks are unacceptable.
· The main parts: valve body, seat. and adjustment springs are made from stainless steel. Anti-corrosive SCS14A is used for the main parts.
· The sealed construction prevents liquid from leaking outside.

Safety Relief Valve, AL-17 Series

YOSHITAKE

[Features]
・ The main part (valve body, valve seat) is made of stainless steel, so it has excellent corrosion resistance and durability
・ The down pressure can be adjusted by seat ring
・ It can support set pressures up to 1.6 MPa

Air Vent Valve TA-16CVA, Series

YOSHITAKE

Provides a stable displacement across a wide range of operating pressures (0.01–1.0 MPa). Compact design permits installation in small space. Included check valve prevents air being sucked in on inlet side, even at negative pressure.

CAD ：

2D

Air Vent Valve, TA-16 CVS Series

YOSHITAKE

[Features]
・ All materials other than valve discs, gaskets, check valves, check valve fitting are made of stainless steel
・ Wide operating pressure (0.01 to 1.0 MPa) gives stable displacement
・ Compact size allows installation in a small space
・ Excellent sealing performance because synthetic rubber is used for the valve disc
・ TA-16CVS makes it easy to connect any exhaust pipe by installing optional pipe connection parts
・ Since it has a check valve, it does not suck air even when the inlet side is under negative pressure
[Applications]
・ building equipment, factory equipment, housing complex

CAD ：

2D

Air Vent Valve TA-16 Series

YOSHITAKE

Provides a stable displacement across a wide range of operating pressures (0.01–1.0 MPa). Its compact size enables mounting in a narrow space.

[Features]
• All parts are made of stainless steel, except for the valve body disk, gasket, and L-hose fitting (TA-16L), which ensures excellent corrosion resistance and durability.
• The valve body disk is made of fluororubber, which ensures excellent sealing performance.
• The TA-16 can easily be connected to an exhaust pipe by mounting the optional pipe connectors.

CAD ：

2D

Air Vent Valve, TA-3/TA-6 Series

YOSHITAKE

Operates at a wide range of pressures, allowing use from low to high pressures. The valve seat uses a synthetic rubber disk, preventing leakage from the valve, but as a precautionary measure a screw has been added to mount the copper tube fitting onto the top part of the valve seat.

CAD ：

2D

Pressure Reducing Valves (Steam), GD-30S Series

YOSHITAKE

Optimal for applications such as food processing machinery and medical equipment, due to wetted parts made of stainless steel.

CAD ：

2D

Pressure Reducing Valve (Steam) GD-30 Series

YOSHITAKE

This small, lightweight, direct-acting pressure-reducing valve incorporates a stainless steel valve body and valve seat, uses an external-pressure bellows in its detection component, and has excellent durability.

CAD ：

2D

Pressure Reducing Valves (Steam), GD-6N Series

YOSHITAKE

Small, and lightweight, with constant secondary pressure accuracy even at small capacities. · The valve body and valve seat have superior durability thanks to the use of stainless steel.

[Features]
Constant secondary pressure accuracy does not change even at small capacities.
· Compact and lightweight.
· The valve body and valve seat have superior durability thanks to the use of stainless steel.
· A screen (60 mesh) is built in to protect the valve body and seat from foreign material, pipe scales, and pipe chips.

CAD ：

2D

Pressure Reducing Valve (For Cold and Hot Water) GD-24GS/GD-24GS-N Series

YOSHITAKE

A hanging metal type. A pressure reducing valve without sliding parts. Requires maintenance of consumable parts only.

Pressure Reducing Valves for Hot and Cold Water, GD-26-NE Series

YOSHITAKE

Corrosion-resistant materials are used in the liquid-contacting parts. Superior chlorine resistance and reliability for running cold and hot water. The valve utilizes pressure-balanced structure. Therefore, secondary side pressure is maintained at a fixed level without affecting the primary side pressure.

CAD ：

2D

Pressure Reducing Valves (Hot and Cold water), GD-41 Series

YOSHITAKE

Saves space and resources. Stainless steel is used for fluid-contacting parts, fluoropolymer for fluid-contacting surfaces, and special fluorine rubber for rubber parts to provide superior corrosion resistance and durability.

Door-to-Door Water Supply Pressure Reducing Valve and Directional Control Valve, CV-36UL/CV-36UK Series

YOSHITAKE

Fitting with a built-in check valve for the GD-46 / 38 series of pressure reducing valves with bypass for door-to-door water supply in housing complexes.

Door-to-Door Water Supply Pressure Reducing Valve and Check Valve, JO-36UL/JO-36UK Series

YOSHITAKE

Standard fitting for the GD-46 / 38 series of pressure reducing valves with bypass for door-to-door water supply in housing complexes.

Pressure Reducing Valve for Door-to-Door Water Supply for Condominiums, for Use in Residential Complexes, GD-15 / GD-15C Series

YOSHITAKE

This product enables a quiet water supply, so it can be used as a pressure reducing valve for individual water supply in apartment buildings, etc. Can hold a very stable secondary side pressure on the water supply side pressure fluctuation. Small and light with a built in strainer.

[Features]
• Because the noise of the pressure reduction valve itself has been eliminated, water can be supplied even late at night without issue.
• Because the supplied water pressure has already been adjusted to a standard set pressure, there is no need for on-site pressure adjustment.
• The pressure-balancing valve structure ensures that the pressure on the secondary side is kept constant without being affected by the pressure on primary side.
• Thanks to a built-in strainer, any intermixed trash, sand, etc. is removed, preventing it from getting stuck in the valve area or flowing out to the secondary side.
• The strainer cap can be removed without using tools. Also, because the strainer and the strainer cap are combined into a single unit, it is easy to perform maintenance inspections inside the valve box without leaving the strainer in.
• Thanks to its tightly closed structure, no fluids will escape to the exterior even if the diaphragm is damaged.
• Piping can be mounted in whatever direction you like (horizontally or vertically).

Air Vent TV-2 Series for Vapor

YOSHITAKE

[Features]
▪ It prevents air from entering the Weber system. Under any type of pressure from light vacuum state to maximum operating pressure, the air is evacuated automatically under a slightly lower temperature than saturated vapor temperature.
▪ Due to the adoption of a hemispherical stainless steel valve, it is protected by using a seal with high protective properties.
▪ Due to its compact shape and light weight, it is easy to install.
▪ It has been proven to work reliably under a temperature that is slightly lower than the saturated vapor temperature of the operating pressure range.

Pressure Reducing Valve for Water Supply, GD-56R-80 Series

YOSHITAKE

Built-in backflow prevention function, negative pressure operation function, pressure balance function, automatic return water drain stopper and strainer; used mainly in hot water heat exchangers.

[Features]
· The pressure-balancing valve mechanism ensures that the pressure on the secondary side is kept constant without being affected by pressure on primary side.
· Maintenance and inspection are easy as the strainer, check valve, and strainer cap can be removed without using tools.
· The piping installation direction (vertical horizontal) is unrestricted.
· Since the drainage plug is a push operated type, it automatically returns to its original position without having to be returned manually.
· The GD-91R type pressure reduction valve uses parallel threads for connection, and thus piping can be performed easily using cap nuts.
· Valve body and the diaphragm have excellent resistance to chlorinated water.

CAD ：

2D

Lift Type Safety Valve AL-24/AL-24F Series

YOSHITAKE

[Features]
・ It uses a bronze valve box with a stainless steel valve seat so there is no risk of rust
・ Since it is a diaphragm type and has no sliding parts, it operates reliably
・ The set pressure range is as wide as 0.1 to 0.7 MPa with 1 spring, the adjusting thread is a handle type, and a butterfly nut is used for the lock nut, so the pressure can be easily changed
・ Smooth opening and closing even in continuous operation, it operates accurately with respect to the set pressure and discharges liquid
・ Stable operation can be obtained from small flow rate to large flow rate
・ According to the specifications, you can choose the material of the diaphragm and valve body from 2 types, NBR and FKM (fluoroelastomer)
・ It can be installed vertically, horizontally, top, or bottom

RD-30 Type Pressure-Reducing Valve (for Vapor)

VENN

Direct acting type general-purpose products (small and medium capacity) such as construction equipment, factory equipment, etc.

[Features]
▪ Performs stable operation from the small flow rates that cannot be controlled by pilot-operated products.
▪ Structure is little affected by dirt particles, and maintenance is easy.
▪ With use of special synthetic rubber diaphragms in multi-purpose direct-acting pressure reducing valve for pipeline and various steam equipment, it can support a wide range of applications.