Pressure reducing valve (for water / liquid / door-to-door water supply), constant flow valve, water hammer preventer RD-16 type pressure reducing valve (for water / liquid)
By adopting a pressure balance structure for the valve body, the fluctuation of the secondary side pressure due to the change of the primary side pressure is small.
specification
| Product code | RD16-CH | RD16-CL |
|---|---|---|
| Valve type | Pressure reducing valve | Pressure reducing valve |
| Nominal diameter | 20-50 (3/4-2) | 20-50 (3/4-2) |
| Applicable fluid | Water / liquid | Water / liquid |
| Fluid temperature | 5-80 ℃ | 5-80 ℃ |
| Fluid viscosity | 700cSt or less | 700cSt or less |
| Primary side applied pressure | 2.7MPa or less | 2.7MPa or less |
| Secondary adjustment pressure range (set pressure) | 0.3-0.7MPa See applicable pressure selection diagram | 0.05-0.35MPa See applicable pressure selection diagram |
| Minimum differential pressure before and after the valve | 0.05MPa | 0.05MPa |
| Deadline boost | 0.035MPa or less | 0.035MPa or less |
| Allowable leakage amount | None (visual pressure gauge) | None (visual pressure gauge) |
| offset | Within 0.1MPa | Within 0.07MPa |
| End connection | JIS 10, 16, 20, 30K RF flangeWe also manufacture JIS 10, 16 and 20K FF flanges and ASME / JPI class 150 and 300 flanges. | JIS 10, 16, 20, 30K RF flangeWe also manufacture JIS 10, 16 and 20K FF flanges and ASME / JPI class 150 and 300 flanges. |
| Mounting posture | Upright mounting on horizontal piping | Upright mounting on horizontal piping |
| Material body | SCPH | SCPH |
| Material Valve body | SUS | SUS |
| Material Valve seat | SUS | SUS |
| Material diaphragm | NBR | NBR |
| Material disc | NBR | NBR |
- The material of the spring case is FC.
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Frequently Asked Questions and Explanations
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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