RD-35FW type
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This is a [calm] series in which the main body and main part of the water pressure reducing valve [calm] are made of stainless steel.
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).

Download materials

Download materials

Common to all product symbols

RD-35FW Catalog

RD-35FW Price list

RD-35FW outline drawing

RD-35FW Instruction Manual

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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Notation on catalogs and websites

RD44N-F □

Contains characters that indicate pressure classification and options.

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