Safety relief valve, safety valve, relief valve SF-15 type safety valve (full volume type)
- Where to use
- Pressure vesselSteam boiler
specification
| Product code | SF15-C □The pressure classification symbol is entered in □. |
|---|---|
| format | Full quantity formula |
| Cap format | With lever |
| Nominal diameter | 40-150 (1 1/2-6) |
| Applicable fluid | air |
| Set pressure range | 0.1-1.0MPa |
| Fluid temperature | -5 to 235 ° C |
| End connection | Entrance: JIS 10K RF flange (thickness depends on dimension table)Flange standard (entrance x exit) JIS B8210 10K x JIS B2220 10K, ASME / JPI class 150 x 150 are also manufactured. Exit: JIS 10K FF flangeFlange standard (entrance x exit) JIS B8210 10K x JIS B2220 10K, ASME / JPI class 150 x 150 are also manufactured.For the outlet side flange, we also manufacture RF flanges. |
| Mounting posture | Upright mounting |
| Material body | SCPHWe also manufacture the main body made of SCS. However, the set pressure range depends on the nominal diameter. |
| Material Valve body | SUS or SCSFor steam, it is a split valve body. |
| Material Valve seat | SUS or SCSFor steam, it is a split valve body. |
- For nominal diameters 15 to 25, refer to SF-19, 19L, 20, 20L types.
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Frequently Asked Questions and Explanations
Please tell me the difference between the head type and the full volume type. (Answer details include a video)
There is a difference in the amount of blowout between the lift type and the total amount type. Either one can be used as long as the required amount of blowout is satisfied.
What is the purpose of the safety valve lever? (There is a video in the answer details)
This is to check if the safety valve can be operated and if there is any abnormality (sticking). (Operate when the pressure on the inlet side is 75% or more of the set pressure.)
Please tell me how to select the safety valve with lever and without lever.
As a general rule, select no lever (sealed type) for fluids that adversely affect the surroundings when the safety valve operates, such as flammable / toxic and liquid. If it is necessary to check the operation of the safety valve by operating the lever, select the one with a lever.
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