Circuit valve, primary pressure regulating valve WVM-02T type primary pressure regulating valve for fire extinguishing equipment
- Where to use
- Fire extinguishing equipment
Major features
- Stable operation can be easily obtained by adjusting the sensitivity by adjusting the needle valve opening according to the usage conditions.
- 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.
Japan Fire Equipment Safety Center Type Certification Registered Product
specification
| Product code | WVM02T-B | WVM02T-L |
|---|---|---|
| Valve type | Primary pressure control valve for fire extinguishing equipment | Primary pressure control valve for fire extinguishing equipment |
| Use | For fire extinguishing equipment | For fire extinguishing equipment |
| Nominal diameter | 50-150 (2-6) | 40-150 (1 1/2-6) |
| Applicable fluid | Fire extinguishing water | Fire extinguishing water |
| Fluid temperature | 5-60 ° C | 5-60 ° C |
| Primary side applied pressure | 1.6MPa or lessWe also manufacture primary side applicable pressure of 1.0MPa or less (JIS 10K RF flange, set pressure adjustment range of 0.3 to 1.0MPa). | 1.6MPa or lessWe also manufacture primary side applicable pressure of 1.0MPa or less (JIS 10K RF flange, set pressure adjustment range of 0.3 to 1.0MPa). |
| Set pressure adjustment range | 0.3-1.6MPa | 0.3-1.6MPa |
| Blow-down pressure | Set pressure x 15% or less | 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 16K RF flangeWe also manufacture primary side applicable pressure of 1.0MPa or less (JIS 10K RF flange, set pressure adjustment range of 0.3 to 1.0MPa). | JIS 16K RF flangeWe also manufacture primary side applicable pressure of 1.0MPa or less (JIS 10K RF flange, set pressure adjustment range of 0.3 to 1.0MPa). |
| Pressure resistance test (water pressure) | 2.4MPa at water pressure | 2.4MPa at water pressure |
| Mounting posture | Horizontal / vertical freedomWhen installing in vertical piping, leave a large maintenance space. | Horizontal / vertical freedomWhen installing in vertical piping, leave a large maintenance space. |
| Basic valve material body | FC | FCD |
| Basic valve material Main part Diaphragm disc | NBR | NBR |
| Basic valve material Main part Valve seat | CAC406 | CAC406 |
| Basic valve painting inner surface | Liquid epoxy resin for water supply | Liquid epoxy resin for water supply |
| Basic valve painting outer surface | Red (Munsell 7.5R 4/15) | Red (Munsell 7.5R 4/15) |
- We also manufacture one with a pressure gauge. (The maximum scale of the pressure gauge is the set pressure adjustment range of 0.3 to 1.6MPa (2.5MPa).)
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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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