Pressure reducing valve (for water / liquid / door-to-door water supply), constant flow valve, water hammer preventer RD-38F type pressure reducing valve (for water / hot water / air / liquid)
With improved controllability, reliability, and corrosion resistance, it can be used in plants.
Major features
- The spring and spring case are also made of SUS and have excellent corrosion resistance.
- It is a low noise design.
- Even if the diaphragm is damaged, water will not leak to the outside.
- The mounting posture is free.
- The pressure gauge can be attached directly to the main body. (Secondary side only)
specification
Product code | RD38F-D □The symbol of the secondary adjustment pressure range is entered in □. |
---|---|
Valve type | Pressure reducing valve |
type | For 1.6MPa or less |
Nominal diameter | 25-50 (1-2) |
Applicable fluid | Liquid that does not corrode water, hot water, or materials |
Fluid temperature | 5 to 90 ° C |
Primary side applied pressure | 1.6MPa or lessFor the RD-38F type with a nominal diameter of 40 to 50, we also manufacture JIS 20K RF flanges with a primary side applicable pressure of 2.0MPa or less and end connection. |
Secondary adjustment pressure range (set pressure) | L: 0.05-0.35MPa, H: 0.3-0.7MPaFor the RD-38F type with a nominal diameter of 40 to 50, we also manufacture JIS 20K RF flanges with a primary side applicable pressure of 2.0MPa or less and end connection. |
Maximum decompression ratio | 10: 1 |
Minimum differential pressure before and after the valve | 0.05MPa |
Allowable leakage amount | None (visual pressure gauge) |
End connection | JIS 16K FFFor the RD-38F type with a nominal diameter of 40 to 50, we also manufacture JIS 20K RF flanges with a primary side applicable pressure of 2.0MPa or less and end connection. Flange |
Mounting posture | Horizontal / vertical freedomWhen installing in vertical piping, leave a large maintenance space. |
Material body | SCS |
Material diaphragm | NBR |
Material disc | NBR |
Material parts | SUS |
Material Spring case | SUS |
- We also manufacture a pressure gauge attachment only on the secondary side. (The maximum scale of the pressure gauge is the secondary adjustment pressure range L (0.6MPa) and H (1.6MPa).)
- For the RD-37,37F type, we also manufacture the RD-37T, 37FT type, which is compatible with temporary cleaning steam (maximum operating temperature of 130 ° C) in beer and drinking water factories.
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Frequently Asked Questions and Explanations
Please tell me how to adjust the pressure. (There is a video in the answer details)
Please see the video of the pressure adjustment method from the answer details.
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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