Pressure reducing valve (for water / liquid / door-to-door water supply), constant flow valve, water hammer preventer RD-45SUN type Door-to-door water pressure reducing valve <with water stopcock> (for water / hot water)
The ball-type water stopcock opens and closes smoothly, improving not only operability but also maintainability of pressure reducing valves and water supply equipment.
* Please check that some water utilities may provide guidance.
Major features
- Uses chlorine water resistant EPDM.
- Hygienic structure without liquid pool.
- Reliable operation from low differential pressure to high differential pressure.
- Water pressure test is possible with the pressure reducing valve installed.
- Easy and simple new test gag method adopted.
Water Supply Law Performance Standard Certification Registered Product (E-157) Pressure Pressure Performance Leaching Performance Durability Performance
specification
| Product code | RD45SUN-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: 0.20 to 0.30MPa (0.20,0.25MPa)If the set pressure exceeds 0.3MPa, please contact us.We also manufacture with a tube end core. Please 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 | For L / M / H Entrance: JIS R c3 / 4 screw Exit: JIS G 1 screw In the case of L / M / H "P" Entrance: JIS R c3 / 4 screw Exit: JIS R 3/4 thread (union fitting) |
| Mounting posture | Horizontal / vertical freedom (excluding strainer cap upward) |
| accessories | Insulation case (self-extinguishing), test gag, joint for pressure gauge (for secondary side, main body already attached)The pressure gauge fitting can be used in combination with the opposite plug. In the case of RD-45SUN type P, a union fitting (pipe, nut, gasket) is also included. |
| strainer | 60 mesh |
| Material body | CAC406 |
| Material diaphragm | Chlorine water resistant EPDM |
| Material disc | Chlorine water resistant EPDM |
| Material ball | CAC plating process |
- The pressure gauge is an optional item, and A type or D type can be selected. (The maximum scale of the pressure gauge is 0.5MPa.)
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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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