Pressure reducing valve (for water / liquid / door-to-door water supply), constant flow valve, water hammer preventer RJ-44N type pressure reducing valve with expansion pipe 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-157) Pressure Pressure Performance Leaching Performance Durability Performance
specification
| Product code | RJ44N-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 | 0.02MPa |
| Allowable leakage amount | None (visual pressure gauge) |
| Rated flow rate | 50L / min (differential pressure 0.1MPa or more) |
| Expansion and contraction amount | Shrinks from the maximum surface 12 mm |
| End connection | entrance: 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) exit: JIS G1 female thread (union fitting)As for the female thread for the expansion tube on the outlet side, we also manufacture the city thread. |
| accessories | Union fittings (pipes, nuts, gaskets), heat insulation cases (self-extinguishing properties), test gag, pressure gauge fittings (for secondary side, main body 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 RJ-45SUN type with a water stopcock.
Download materials
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
Please use this form for product questions and technical inquiries.
If you would like to contact us by phone, please contact VENN's sales office.
We will strictly manage the personal information of our customers based on our "Personal Information Protection Management Regulations" and will not use it for anything other than responding to inquiries and consultations without the consent of the customer.
Please check our privacy policy.
Please cooperate with the questionnaire
We will use your opinions as a reference to make the website easier to understand and useful, so we ask for your cooperation.
Was this page helpful?
How easy was it to find the page you were looking for on this site?
How was the page easy to understand about this site?
Thank you for your cooperation
Added to comparison table View comparison table
Added to Favorites View Favorites
Added to Download BOX Download BOX
