- High capacity with full bore design
- Reliable performance because of precise machining and heat treatment on trim parts
Japan, Yoshitake
YOSHITAKE AF-1 Safety and Relief Valve
Made in Japan
Manufacturer: Yoshitake
Model: AF-1
Specifications
| Features | For steam, full bore, screwed, lever | |
|---|---|---|
| Type | Safety valve | |
| Specifications | Product type | Full bore type safety valve |
| Nominal size | 20A (3/4″) – 50A (2″) | |
| Application | Steam | |
| End connection | Inlet: JIS R screwed, Outlet: JIS Rp screwed | |
| Working pressure | 0.18 – 1.6 MPa | |
| Max. temperature | 220 degree(C) | |
| Material | Body | Ductile cast iron |
| Spring case | Ductile cast iron | |
| Valve and valve seat | Stainless steel | |
Remarks
* Rp is parallel screw applicable to taper pipe thread.
Dimensions and Weights
| Size (Inlet x Throat x Outlet) | L (mm) | H1 (mm) | Weight (kg) |
|---|---|---|---|
| 20A(R1 x 15 x Rp1) | 47 | 67 | 3 |
| 25A(R1-1/4 x 19 x Rp1-1/4) | 50 | 79 | 4.2 |
| 32A(R1-1/2 x 26 x Rp1-1/2) | 62 | 92 | 7.2 |
| 40A(R2 x 30 x Rp2) | 70 | 108 | 10.5 |
| 50A(R2-1/2 x 38 x Rp2-1/2) | 89 | 123 | 18.5 |
*The nominal size and the connection size are different.
About flow rate
Selection data：
Dimensional drawing
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