Japan, Yoshitake
YOSHITAKE GD-43N-20 Pressure Reducing Valve For Water And Oil And Air
Made in Japan
Manufacturer: Yoshitake
Model: GD-43N-20
- Wetted parts SCS14A/SUS316 stainless steel
- Material identification for recycling
- Stable pressure control by pressure balance structure
Specifications
| Features | For water, stainless steel, flanged, Max. 2.0MPa, JWWA approval | |
|---|---|---|
| Type | Direct-acting type | |
| Specifications | Product type | Direct-acting type |
| Nominal size | 15A (1/2″) – 25A (1″) | |
| Application | Water | |
| End connection | JIS 20K RF flanged | |
| Inlet pressure | Max. 0.07 – 2 MPa | |
| Reduced pressure | 0.02 – 0.5 MPa (*) | |
| Min. differential pressure | 0.05 MPa | |
| Max. pressure reduction ratio | 10 : 1 | |
| Working temperature | 5 – 90 degree(C) | |
| Material | Body | Stainless steel (SCS14A) |
| Valve & seat | FKM and stainless steel | |
| Spindle | Stainless steel | |
| Diaphragm | FKM and PTFE | |
Remarks
* Reduced pressure
(A): 0.02-0.1 MPa
(B): 0.1-0.25 MPa
(C): 0.25-0.5 MPa
About flow rate
Selection data：
Nominal Sizes Selection Chart (For Cold and Hot Water)
When selecting the nominal size of a pressure reducing valve whose inlet pressure (P1), reduced pressure (P2), and flow rate are 0.5 MPa, 0.3 MPa, and 10 L/min, respectively, trace up vertically from the 0.2 MPa point of differential pressure before and after the valve to find intersection point (a) with the flow rate of 10 L/min. Since intersection point (a) is between nominal sizes 15A and 20A, select the larger one, 20A.
Dimensional drawing
