Pressure reducing valve (for water / liquid / door-to-door water supply), constant flow valve, water hammer preventer RFC-44N type Check valve for door-to-door water supply (for water / hot water)
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-240) Pressure Resistant Performance Leaching Performance Backflow Prevention Performance Durability Performance
specification
| Product code | RFC44N-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.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 | 0.025MPa |
| Set flow rate / symbol | L: 9, 12, 15, 20, 25, 30 L / min M / H: 9, 12, 15, 20, 25, 30, 35, 40 L / min |
| Check valve closing pressure | 3kPa or more |
| End connection | P (male union fitting): JIS R3 / 4 screw (for both P and V) B (female union fitting): JIS Rc3 / 4 screw (built-in movable core for both P and V) |
| Mounting posture | Horizontal / vertical freedom (excluding strainer cap upward) |
| accessories | Union fittings (pipes, nuts, gaskets)The outlet side union fitting has a built-in constant flow valve. (Check valve is built into the main body) , heat insulation case (self-extinguishing) test gag, joint for pressure gauge (for secondary side, main body already installed)The pressure gauge fitting can be used in combination with the opposite plug. |
| strainer | 60 mesh |
| Material body | CAC406 |
| Material diaphragm | Chlorine water resistant EPDM |
| Material disc | Chlorine water resistant EPDM |
- 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.)
- We also manufacture the RFC-45SUN type with a water stopcock.
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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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