YOSHITAKE Safety Valves, Control Valves

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.

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

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

Safety Relief Valve AL-300/AL-301 Series

YOSHITAKE

[Features]
▪Mainly used in safety relief values after pressure reducing valves and in safety valves such as small boilers and various pressure containers and instruments.
· The AL-301 has stainless steel main components (valves and valve seats), so it offers superior corrosion resistance and durability.

CAD ：

2D

Pressure Reducing Valve (For Steam / Low Pressure) GP-1000 Series

YOSHITAKE

[Features]
▪ SHASE-S106 conforms to standards of pressure reducing valve (Air Conditioning and Health Engineering Society).
· The spherical shape of the main valve has excellent sealing properties to reduce valve seat leakage significantly (corresponding to the ANSI class IV) .
· Compared with conventional pressure reducing valves, workability and durability are significantly enhanced.

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

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

Safety Relief Valve AL-300T/AL-301 T Series

YOSHITAKE

[Features]
・ Fluoropolymer disc is used for the valve, so it has excellent seat airtightness
・ The main part (valve body / valve seat) of AL-301T is stainless steel, which has excellent corrosion resistance and durability

CAD ：

2D

Safety Relief Valve, AL-4T Series

YOSHITAKE

[Features]
· Mainly used as a safety relief valve downstream of a pressure reducing valve, safety valve for various pressure vessels and instrumentation equipment, and relief valve for pumps.
· Fluororesin disks are used in AL-4T valve parts for superior valve seat sealing.

Intake Valve - Automatic Intake Valve - VB-10 Series

YOSHITAKE

[Features]
• This valve increases atmospheric pressure by applying air to the pipe from which it is difficult to drain the water. Consequently, water is easily drained during water drainage operations.
• As a 60-mesh strainer is built into the valve, there are no blockages due to scale.
• In addition, even if water leaks due to blockage, water can be stopped by tightening the cap.
• As the highest temperature is 95°C, warm water is also supported.
• Can be mounted in both vertical and horizontal directions (Downward facing not possible).

Intake and Exhaust Valves, TAV-2 Series

YOSHITAKE

Quickly prevents air from being sucked back when negative pressure occurs. Automatically works in response to air intake and exhaust requirements.

CAD ：

2D

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-16L Series

YOSHITAKE

[Features]
・ All materials other than valve discs, gaskets and L-shaped hose fittings (TA-16L) 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
[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 (Steam), GP-1000H Series

YOSHITAKE

[Features]
・ It reacts extremely sensitively to fluctuations in primary pressure and changes in flow rate, and can maintain the secondary pressure constant
・ The pressure can be easily regulated and has a wide set pressure range
・ It complies with SHASE-S106 pressure reducing valve (The Society of Heating, Air-Conditioning and Sanitary Engineers of Japan) standards

Pressure Reducing Valve (Steam), GP-1000S Series

YOSHITAKE

[Features]
・ It complies with SHASE-S106 pressure reducing valve (The Society of Heating, Air-Conditioning and Sanitary Engineers of Japan) standards
・ Since the main valve has a spherical shape, it has excellent sealing performance and the amount of valve seat leakage is significantly reduced (Compliant with ANSI Class IV)
・ When compared with conventional pressure reducing valves, workability and durability are significantly enhanced

Pressure Reducing Valves (Hot and Cold Water, Oil, Air), GD-200/GD-200H Series

YOSHITAKE

A high-capacity type that can also handle high pressures. Optimal for use as industrial equipment.

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.

Door-to-Door Water Supply Pressure Reducing Valve Fitting, JO-36UP/JO-36UV 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-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

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