Pressure reducing valve (for water / liquid / door-to-door water supply), constant flow valve, water hammer preventer RD-46N type pressure reducing valve for detached house <for buried piping> (for water / hot water)
The performance as a pressure reducing valve is equivalent to that of the RD-44N and 45SN types.
- Where to use
- Detached housesBuried piping
Major features
- Uses chlorine water resistant EPDM.
- It is a low noise type.
- Vertical and horizontal piping is possible. (Excluding strainer cap upward)
Water Supply Law Performance Standard Certification Registered Product (E-157) Pressure Pressure Performance Leaching Performance Durability Performance
specification
| Product code | RD46N-F □Please refer to "How to represent product symbols" |
|---|---|
| Valve type | Pressure reducing valve for door-to-door water supply |
| Nominal diameter | 20 (3/4) |
| Applicable fluid | Tap water / hot water |
| Fluid temperature | 5 to 90 ° C (5 to 40 ° C when using tube end core) |
| Primary side applied pressure | 1.0MPa or less |
| Secondary adjustment pressure range (set pressure) | L: 0.05-0.12MPa (0.08MPa) M: 0.11 to 0.23MPa (0.20MPa) H: 0.22 to 0.30MPa (0.25MPa)If the set pressure exceeds 0.3MPa, please contact us.For other set pressures, refer to "How to represent product symbols". |
| Nameplate color | L: green M: Blue H: Red |
| Maximum decompression ratio | 10: 1 |
| Minimum differential pressure before and after the valve | 0.02MPa |
| Rated flow rate | 50L / min (differential pressure 0.1MPa or more) |
| End connection | P: JIS R3 / 4 union fitting (for both P and V)Other end connections and models are as follows. ● Model code B: Female union fitting: JIS Rc3 / 4 (Built-in movable core for both P and V) Model example “RD-46N type MB” ● Model code C: Male / female union fitting: JIS R3 / 4 × Rc3 / 4 (Built-in movable core for both P and V) Model example "RD-46N type MC" |
| Mounting posture | Horizontal / vertical freedom (excluding strainer cap upward) |
| accessories | Union fittings (pipes, nuts, gaskets) |
| strainer | 60 mesh |
| Material body | CAC406 |
| Material diaphragm | Chlorine water resistant EPDM |
| Material disc | Chlorine water resistant EPDM |
- Pressure gauge fittings are not included. (It will be plugged.)
- Please contact us for the test gag for water pressure test (1.75MPa or less).
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Frequently Asked Questions and Explanations
What is the useful life (the number of years recommended for replacement)?
The service life of pressure reducing valves for door-to-door water supply is 8 years after regular inspections, maintenance, and replacement of consumable parts, but this may vary depending on usage conditions.
Does the pressure reducing valve generate noise due to deterioration over time?
Noise tends to be higher due to disc damage (bite) and benza damage over time.
Is it necessary to install a pressure reducing valve for water supply for each house in all the units of an apartment house?
Not all units have it. It is not necessary to install it if the water pressure is not high on the upper floors.
Inquiries about this product
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