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Safety Relief Valves

Safety valve is a part for releasing the pressure generated in the piping. There are a wide variety of items such as a type that can drain water, such as a relief valve of a hot water heat exchanger, and a universal type that can handle oil and steam in addition to water. A variety of safety valves, such as a sealed structure that does not leak easily and a type that uses a synthetic rubber diaphragm with excellent heat and water resistance, are available. It is an indispensable item for a wide range of work sites such as repairing water heaters and piping work for boilers.

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  1. bronze sheet metal
  2. safety valve for steam
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35 Item(s)

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  1. Safety Valve AL Series
    YOSHITAKE Safety Valve AL Series
    Versatile type that supports fluids such as steam, air, water, and oil. We pursued the highest performance by subdividing pressure categories and realizing precision finishing with advanced technology. Advanced technology, high-grade materials, and a simple mechanism have realized amazing durabil... Read More
    Specification  Safety relief valve, sealed type  Type  Lifting type  Connector  JIS Rc  Material (Valve / Valve Seat)  Stainless steel (SCS14A)  Applicable Pressure (MPa)  0.05～1.0  Suitable Temperature (℃)  5～220  Material (spring box)  bronze  Material (Adjustment spring)  stainless steel 
    Rating:
    96%
    (5)
    from S$249.90
    Min. 2 days
  2. Relief valve for hot water equipment
    YOSHITAKE Relief valve for hot water equipment
    It is mainly used as a relief valve for hot water heat exchangers with an operating pressure of 100 kPa or less. With the manual lever, you can quickly operate, check the water level, and drain water.
    Nominal Diameter (B)  3/4  Highest Temperature (℃)  100  Connector  JIS R3/4×JIS Rc1/2  Nominal Diameter (A)  20  Suitable Fluid  Cold and hot water  Material (valve box)  bronze 
    Rating:
    91%
    (52)
    from S$58.99
    Min. 2 days
  3. Relief valve
    Kane Kogyo Relief valve
    DE is used in combination with the secondary side of KRME / KRMJ. It is used to relieve overpressure caused by hot water expansion of hot water equipment and to protect equipment. Since the diaphragm type is adopted, reliable and stable operation can be obtained. * Only standard products are avai... Read More
    Pressure (kPa)  Start blowing: 95 (standard product) 
    Rating:
    100%
    (3)
    from S$63.99
    Min. 2 days
  4. Safety Relief Valve SL38 Fukutaro
    VENN Safety Relief Valve SL38 Fukutaro
    Sealed type safety relief valve with bronze spring case, SCS main part, and SUS spring with excellent corrosion resistance. Can be used for 3 fluids: steam, gas, and liquid. (Metal sheet type) * * Do not adjust (change) the set pressure. In the unlikely event that adjustment is required, a skille... Read More
    Specification  CAC-SCS, general purpose  Fluid Temperature (℃)  225 or less  Mounting Direction  Upright mounting  End Connection  JIS Rc thread  Cap Type  Without lever 
    Rating:
    60%
    (1)
    from S$229.90
    Min. 2 days
  5. SL35N-F New Standard Compliant Hot Water Equipment Relief Valve [97kPa Setting]
    VENN SL35N-F New Standard Compliant Hot Water Equipment Relief Valve [97kPa Setting]
    Specification  Blown pressure: 92kPa or more  Material  (Main body) CAC406, (Diaphragm) FKM  Nominal Diameter  20A  Nominal Diameter (B)  3/4  Nominal Diameter (A)  20  Fluid Temperature (℃)  5～100  Suitable Fluid  Cold / hot water 
    Rating:
    96%
    (5)
    from S$59.99
    Min. 2 days
  6. New Standard Compliant Hot Water Equipment Relief Valve 190kPa Set
    VENN New Standard Compliant Hot Water Equipment Relief Valve 190kPa Set
    A diaphragm type relief valve for small hot water boilers and electric water heaters. It is used as a relief valve for pressure due to thermal expansion and as a relief valve on the secondary side of the pressure reducing valve.
    Included Accessories  Insulation case (self-extinguishing)  Material (Main Unit)  CAC406  Nominal Diameter (A)  20  Fluid Temperature (℃)  5～100  Suitable Fluid  Cold / hot water  Material (Diaphragm)  FKM 
    Rating:
    85%
    (4)
    from S$64.99
    Min. 2 days
  7. Lifting safety valve (B)
    YOSHITAKE Lifting safety valve (B)
    from S$249.90
    Min. 6 days
  8. Relief valve for hot water equipment + AL-72F-95
    YOSHITAKE Relief valve for hot water equipment + AL-72F-95
    It is mainly used as a relief valve for hot water boilers and hot water heat exchangers with an operating pressure of 100 kPa or less. A parallel screw is used for the outlet connection, and piping can be done easily with a bag nut.
    Type  Relief valve for hot water equipment  Nominal Diameter (B)  3/4  Highest Temperature (℃)  100  Connector  JIS R3/4×JIS G1/2  Nominal Diameter (A)  20  Suitable Fluid  Cold and hot water  Material (Diaphragm)  FKM (Viton)  Material (valve box)  CAC 
    from S$64.99
    Min. 5 days
  9. Lifting safety valve (D)
    YOSHITAKE Lifting safety valve (D)
    from S$249.90
    Min. 6 days
  10. Relief valve for hot water equipment + AL-68-97
    YOSHITAKE Relief valve for hot water equipment + AL-68-97
    Water supply law standard compliant product. It is mainly used as a relief valve for hot water heat exchangers with an operating pressure of 100 kPa or less. Due to the sealed structure, there is no leakage to the outside even if the diaphragm is damaged.
    Type  Relief valve for hot water equipment  Nominal Diameter (B)  3/4  Highest Temperature (℃)  100  Connector  JIS R3/4×JIS Rc1/2  Nominal Diameter (A)  20  Suitable Fluid  Cold and hot water  Material (Diaphragm)  FKM (Viton)  Negative Pressure Performance (kPa)  -12 or less  Material (valve box)  CAC 
    from S$149.90
    Min. 5 days
  11. Relief valve for hot water equipment (valve seat SUS) + AL-52FS-95
    YOSHITAKE Relief valve for hot water equipment (valve seat SUS) + AL-52FS-95
    It is mainly used for hot water heat exchangers with an operating pressure of 100 kPa or less. Since stainless steel is used for the valve seat, it has excellent corrosion resistance.
    Type  Relief valve for hot water equipment  Nominal Diameter (B)  3/4  Highest Temperature (℃)  100  Connector  JIS R3/4×JIS Rc1/2  Nominal Diameter (A)  20  Suitable Fluid  Cold and hot water  Material (Valve Seat)  SUS  Material (Diaphragm)  FKM (Viton)  Material (valve box)  CAC 
    from S$87.99
    Min. 6 days
  12. Rc3 / 8 " boost valve
    ESCO Rc3 / 8 " boost valve
    Maximum Flow Rate (L/min)  1000  Withstand Pressure (MPa)  1.5  Pressure Setting Range (MPa)  0.2～1.0  Supply pressure range (MPa)  0.1～1.0  Screw diameter Rc  3/8 
    from S$1,299.00
    Min. 3 days
  13. Rc3 / 8 " Pressure reducing valve with air filter
    ESCO Rc3 / 8 " Pressure reducing valve with air filter
    Mass (g)  590  Maximum Operating Pressure (MPa)  1.0  Withstand Pressure (MPa)  1.5a  Pressure Setting Range (MPa)  0.05～0.85  Filtration (μm)  0.3  Screw diameter Rc  3/8" 
    from S$219.90
    Min. 3 days
  14. Rc1 / 2 " boost valve
    ESCO Rc1 / 2 " boost valve
    Maximum Flow Rate (L/min)  1900  Withstand Pressure (MPa)  1.5  Pressure Setting Range (MPa)  0.2～1.0  Supply pressure range (MPa)  0.1～1.0  Screw diameter Rc  1/2 
    from S$1,899.00
    Min. 3 days
  15. Rc 1 " Pressure reducing valve (with air filter / bracket)
    ESCO Rc 1 " Pressure reducing valve (with air filter / bracket)
    Mass (g)  2050  Maximum Operating Pressure (MPa)  1.0  Withstand Pressure (MPa)  1.5  Mounting Screw  Rc1"  Pressure Setting Range (MPa)  0.05～0.85  Filtration (μm)  5  Auto Drain Specification  None  Pressure Gauge  Φ425mm 
    from S$349.90
    Min. 3 days
  16. Rc 1 " Pressure reducing valve (with air filter / bracket)
    ESCO Rc 1 " Pressure reducing valve (with air filter / bracket)
    Mass (g)  2050  Maximum Operating Pressure (MPa)  1.0  Withstand Pressure (MPa)  1.5  Mounting Screw  Rc1"  Pressure Setting Range (MPa)  0.05～0.85  Filtration (μm)  5  Auto Drain Specification  None 
    from S$349.90
    Min. 3 days
  17. Rc 3/8 " Pressure reducing valve (with air filter / bracket)
    ESCO Rc 3/8 " Pressure reducing valve (with air filter / bracket)
    Mass (g)  360  Maximum Operating Pressure (MPa)  1.0  Withstand Pressure (MPa)  1.5  Mounting Screw  Rc3/8"  Pressure Setting Range (MPa)  0.05～0.85  Filtration (μm)  5  Auto Drain Specification  Normally open 
    from S$229.90
    Min. 3 days
  18. Rc 1/2 " Pressure reducing valve (with air filter / bracket)
    ESCO Rc 1/2 " Pressure reducing valve (with air filter / bracket)
    Mass (g)  660  Maximum Operating Pressure (MPa)  1.0  Withstand Pressure (MPa)  1.5  Mounting Screw  Rc1/2"  Pressure Setting Range (MPa)  0.05～0.85  Filtration (μm)  5  Auto Drain Specification  None 
    from S$229.90
    Min. 3 days
  19. Rc3 / 8 " Air tank for booster valve
    ESCO Rc3 / 8 " Air tank for booster valve
    Material  Stainless steel  Tank Capacity (L)  10  Maximum Operating Pressure (MPa)  2.0  Mounting Screw  IN：3/8"、OUT：1/2"  Suitable Fluid  Compressed air 
    from S$789.90
    Min. 3 days
  20. Rc 3/8 " Pressure reducing valve (with air filter / bracket)
    ESCO Rc 3/8 " Pressure reducing valve (with air filter / bracket)
    Mass (g)  360  Maximum Operating Pressure (MPa)  1.0  Withstand Pressure (MPa)  1.5  Mounting Screw  Rc3/8"  Pressure Setting Range (MPa)  0.05～0.85  Filtration (μm)  5  Auto Drain Specification  Normally open  Pressure Gauge  Φ375mm 
    from S$229.90
    Min. 3 days
  21. Rc1 / 4 " boost valve
    ESCO Rc1 / 4 " boost valve
    Maximum Flow Rate (L/min)  70  Withstand Pressure (MPa)  1.5  Pressure Setting Range (MPa)  0.2～1.0  Supply pressure range (MPa)  0.1～1.0  Screw diameter Rc  1/4 
    from S$669.90
    Min. 3 days
  22. Rc3 / 8 " boost valve
    ESCO Rc3 / 8 " boost valve
    Maximum Flow Rate (L/min)  1000  Withstand Pressure (MPa)  1.5  Pressure Setting Range (MPa)  0.2～1.0  Supply pressure range (MPa)  0.1～1.0  Screw diameter Rc  3/8 
    from S$1,299.00
    Min. 3 days
  23. Rc 3/4 " Pressure reducing valve (with air filter / bracket)
    ESCO Rc 3/4 " Pressure reducing valve (with air filter / bracket)
    Mass (g)  660  Maximum Operating Pressure (MPa)  1.0  Withstand Pressure (MPa)  1.5  Mounting Screw  Rc3/4"  Pressure Setting Range (MPa)  0.05～0.85  Filtration (μm)  5  Auto Drain Specification  None 
    from S$239.90
    Min. 3 days
  24. Rc 3/8 " Pressure reducing valve (with air filter / bracket)
    ESCO Rc 3/8 " Pressure reducing valve (with air filter / bracket)
    Mass (g)  360  Maximum Operating Pressure (MPa)  1.0  Withstand Pressure (MPa)  1.5  Mounting Screw  Rc3/8"  Pressure Setting Range (MPa)  0.05～0.85  Filtration (μm)  5  Auto Drain Specification  None 
    from S$159.90
    Min. 3 days
  25. Rc1 / 4 " boost valve
    ESCO Rc1 / 4 " boost valve
    Maximum Flow Rate (L/min)  230  Withstand Pressure (MPa)  3.0  Pressure Setting Range (MPa)  0.2～2.0  Supply pressure range (MPa)  0.1～1.0  Screw diameter Rc  1/4 
    from S$669.90
    Min. 3 days
  26. Relief valve for hot water equipment +DE
    Kane Kogyo Relief valve for hot water equipment +DE
    DE is used in combination with the secondary side of KRME / KRMJ. It is used to protect equipment as a sign of overpressure due to hot water expansion of hot water equipment. Since the diaphragm type is adopted, reliable and stable operation can be obtained.
    Maximum Operating Temperature (℃)  Antifreeze 0-100  Suitable Fluid  Clean water 
    from S$129.90
    Min. 23 days
  27. Rc3 / 8 " Air tank for booster valve
    ESCO Rc3 / 8 " Air tank for booster valve
    Material  Stainless steel  Tank Capacity (L)  5  Maximum Operating Pressure (MPa)  2.0  Mounting Screw  IN：3/8"、OUT：3/8"  Suitable Fluid  Compressed air 
    from S$569.90
    Min. 3 days
  28. Rc 1/4 " Pressure reducing valve (with air filter / bracket)
    ESCO Rc 1/4 " Pressure reducing valve (with air filter / bracket)
    Mass (g)  200  Maximum Operating Pressure (MPa)  1.0  Withstand Pressure (MPa)  1.5  Mounting Screw  Rc1/4"  Pressure Setting Range (MPa)  0.05～0.85  Filtration (μm)  5  Auto Drain Specification  None 
    from S$119.90
    Min. 3 days
  29. Lifting safety valve (F)
    YOSHITAKE Lifting safety valve (F)
    Discontinued
  30. SL38-D3K3 0.3MPa Fukutaro Bronze / SCS Safety Relief Valve
    VENN SL38-D3K3 0.3MPa Fukutaro Bronze / SCS Safety Relief Valve
    A sealed type safety relief valve with excellent corrosion resistance for the bronze spring case, main part SCS, and spring SUS. It can be shared with three fluids: steam, gas, and liquid. (Metal sheet type)
    Setting Pressure (MPa)  0.3  Fluid Temperature (℃)  225 or less  Mounting Direction  Upright mounting  Suitable Fluid  Vapor, gas, liquid  End Connection  JIS Rc thread  Cap Type  Without lever 
    Discontinued
  31. Lifting safety valve (A)
    YOSHITAKE Lifting safety valve (A)
    Discontinued
  32. Lifting safety valve (C)
    YOSHITAKE Lifting safety valve (C)
    Discontinued
  33. Lifting safety valve (E)
    YOSHITAKE Lifting safety valve (E)
    Discontinued
  34. Safety relief valve (set pressure 0.8MPa)
    VENN Safety relief valve (set pressure 0.8MPa)
    Specification  CAC-SCS, general purpose  Material (Main Unit)  SCS13 (stainless steel cast steel)  Type  Lifting type  Nominal Diameter  25  Material (Case)  Spring case: CAC406 (bronze casting)  Setting Pressure (MPa)  0.8  Fluid Temperature (℃)  225 or less  Pressure Setting Range (MPa)  0.05～1.0  Suitable Fluid  Vapor, gas, liquid  End Connection  JIS Rc thread  Cap Type  Without lever  Material (Valve Member)  SCS13 (stainless steel cast steel)  Lift l (mm)  0.6  Valve Seat Diameter D (Φmm)  23  Connection d (inch)  1 
    Discontinued
  35. Relief valve for water heater
    YOSHITAKE Relief valve for water heater
    A relief valve for hot water equipment such as simple hot water boilers with a working pressure of 100 kPa or less and small-scale hot water boilers with a working pressure of 200 kPa or less. Since it has a manual lever, you can quickly check the operation and water level, and drain the water in... Read More
    Nominal Diameter (B)  3/4  Type of Connection  Inlet / JIS R, Outlet / JIS Rc  Nominal Diameter (A)  20  Maximum Operating Temperature (℃)  100  Suitable Fluid  Cold and hot water 
    Discontinued
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