Pressure reducing valve (for water / liquid / door-to-door water supply), constant flow valve, water hammer preventer RD-35FW type pressure reducing valve (for water / hot water)
With improved controllability, reliability, and corrosion resistance, it can be used in plants.
Chlorine water resistant EPDM is used as the material for the disc diaphragm.
- Where to use
- Building equipmentFactory equipment
Major features
- Uses chlorine water resistant EPDM.
- It can also be used for expulsion of red water and stainless steel piping with the main body SCS.
- Even if the diaphragm is damaged, water will not leak to the outside.
- The pressure gauge can be attached directly to the main body. (Secondary side only)
specification
Product code | RD35FW-D □The symbol of the secondary adjustment pressure range is entered in □. |
---|---|
Valve type | Pressure reducing valve |
type | For 1.0MPa or less |
Nominal diameter | 25-100 (1-4) |
Applicable fluid | Water / hot water |
Fluid temperature | 5 to 90 ° C |
Primary side applied pressure | 1.0MPa or less |
Secondary adjustment pressure range (set pressure) | L: 0.05-0.35MPa, H: 0.3-0.7MPa For the RD-36FW type with a nominal diameter of 40 to 100, we also manufacture JIS 20K RF flanges with a primary side applicable pressure of 2.0MPa or less and end connection. |
Maximum decompression ratio | 10: 1 |
Minimum differential pressure before and after the valve | 0.05MPa |
Allowable leakage amount | None (visual pressure gauge) |
End connection | JIS 10K FF Flange |
Mounting posture | Horizontal / vertical freedom When installing in vertical piping, leave a large maintenance space. |
Material body | SCS |
Material diaphragm | Chlorine water resistant EPDM |
Material disc | Chlorine water resistant EPDM |
Material parts | SUS |
Material Spring case | Nominal diameter 25-50: ADC, Nominal diameter 65-100: FC |
- We also manufacture a pressure gauge attachment only on the secondary side. (The maximum scale of the pressure gauge is the secondary adjustment pressure range L (0.6MPa) and H (1.6MPa).)
- We also manufacture products that comply with the performance standards of the Waterworks Law (RD-35NW, 35FNW, 36NW, 36FNW type).
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Frequently Asked Questions and Explanations
Please tell me how to adjust the pressure. (There is a video in the answer details)
Please see the video of the pressure adjustment method from the answer details.
What is the useful life (the number of years recommended for replacement)?
The useful life of the main unit is about 8 years, but it depends on the usage conditions and environment.
Is it possible to reduce the hydrostatic pressure (without flowing water)?
When no water is flowing (flow rate 0), the valve is closed and the secondary side holds the set pressure.
What happens if the minimum flow rate or minimum differential pressure is exceeded?
If the conditions are outside the specified range, control will be lost and operation will become unstable.
Inquiries about this product
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