Circuit valve, primary pressure control valve WVMS-02 type water fall prevention valve (for water / hot water)
During operation, the valve opening is adjusted according to the passing flow rate, and the pressure of the forward pipe and return pipe is maintained at an appropriate pressure to give the air conditioner stable pressure conditions.
- Where to use
- Air conditioning equipmentAir conditioning equipment
Major features
- Stable operation can be easily obtained by adjusting the sensitivity by adjusting the needle valve opening according to the usage conditions.
- It is responsive to pressure changes and the valve closes quickly when the pump is stopped.
- The basic valve and pilot valve can be easily disassembled for easy maintenance such as adjustment, repair, and parts replacement.
- The lift limiting mechanism can limit the overflow.
specification
| Product code | WVMS02-B □The symbol of the set pressure adjustment range is entered in □. | WVMS02-L □The symbol of the set pressure adjustment range is entered in □. |
|---|---|---|
| Valve type | Water fall prevention valve | Water fall prevention valve |
| Nominal diameter | 80-200 (3-8) | 80-200 (3-8) |
| Applicable fluid | Water / hot water | Water / hot water |
| Fluid temperature | 5-60 ° C | 5-60 ° C |
| Primary side applied pressure | 1.0MPa or less | 1.0MPa or less |
| Set pressure adjustment range | L: 0.05-0.35MPa, H: 0.3-0.7MPa | L: 0.05-0.35MPa, H: 0.3-0.7MPa |
| Blow-down pressure | Set pressure adjustment range (L) 0.05 to 0.35 MPa: Set pressure x 20% or less (minimum value 0.03 MPa) Set pressure adjustment range (H) 0.3 to 0.7 MPa: Set pressure x 15% or less | Set pressure adjustment range (L) 0.05 to 0.35 MPa: Set pressure x 20% or less (minimum value 0.03 MPa) Set pressure adjustment range (H) 0.3 to 0.7 MPa: Set pressure x 15% or less |
| Accumulation | Set pressure x 10% or less (minimum value 0.03MPa) | Set pressure x 10% or less (minimum value 0.03MPa) |
| End connection | JIS 10K RF flange | JIS 10K RF flange |
| Pressure resistance test (water pressure) | 1.5MPa at water pressure | 1.5MPa at water pressure |
| Mounting posture | Upright mounting on horizontal piping | Upright mounting on horizontal piping |
| Material body | FC | FCD |
| Material Valve seat | CAC406 | CAC406 |
| Material Diaphragm disc | NBR | NBR |
| Basic valve painting inner surface | Liquid epoxy resin for water supply | Liquid epoxy resin for water supply |
- Refer to page 161 of the general catalog, page 157 for the nominal diameter selection chart, and page 175 for a schematic diagram of piping examples for the selection of water fall prevention valves.
- We also manufacture with two pressure gauges. (The maximum scale of the pressure gauge is the set pressure adjustment range L (0.6MPa), H (1.6MPa) on the primary side and 0.6MPa on the secondary side.)
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Frequently Asked Questions and Explanations
What is the purpose of the primary pressure control valve installed on the outlet side of the pump?
It is used to prevent overheating due to shutoff operation of the pump and to keep the pump discharge pressure constant.
What is a back pressure valve?
Refers to the primary pressure control valve. A regulating valve that discharges fluid in response to changes in the force on the primary side in order to maintain the fluid pressure on the primary side at a certain constant pressure.
What is the purpose of the water fall prevention valve?
Please check the details.
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