Direct Activated Pressure Reducing Valve
Size Range : 1/2″ to 3″ Screwed / Flanged
Silent Features
- The gate is designed for opening status, which will not fluence the water supply function under unstable inlet pressure condition.
- When the outlet pressure responds directly to the pressure control chamber and the setting pressure, it responds quickly and adjusts the pressure accurately.
- Pressure Adjusting Range : 1 ~ 5 kgf/cm2, 4 ~ 9 kgf/cm2, (special order is needed for other range)
- Valve Body Testing Pressure : 24 kgf/cm2
- Maximum Applied Pressure : 16 kgf/cm2
- Pressure needed form fully-closed gate to fully-opened
- gate 1 kgf/cm2 (1 kgf/cm2 = 14.2 psi)
- Applied Temperature : -15 ~ 80 °C
- Applied Condition : Fluid & Air
| Dimensions : (All Dimensions are in mm) | ||||||
| Valve Model | Valve Size | L | H | CV | Weight Approx. | |
| MM | Inch | |||||
| 4M-SDF – 15 | 15 | 1/2″ | 61 | 70.5 | 2 | 0.532 |
| 4M-SDF – 20 | 20 | 3/4″ | 71 | 74 | 6 | 0.656 |
| 4M-SDF – 25 | 25 | 1″ | 81 | 83 | 8 | 0.887 |
| 4M-SDF – 32 | 32 | 1.1/4″ | 90.5 | 121 | 16 | 1.289 |
| 4M-SDF – 40 | 40 | 1.1/2″ | 110.5 | 125.5 | 18 | 2.261 |
| 4M-SDF – 50 | 50 | 2″ | 115 | 125.5 | 21 | 2.642 |
| 4M-SDF – 65 | 65 | 2.1/2″ | 158 | 134 | —- | On Req. |
| 4M-SDF – 80 | 80 | 3″ | 180 | 141 | —- | On Req. |
| No. | Description | Material | Qty. |
| 01 | Body | CF8 / CF8M | 01 |
| 02 | Bonnet | CF8 / CF8M | 01 |
| 03 | Plug | CF8 / CF8M | 01 |
| 04 | Plug V – Seal | NBR / Viton | 01 |
| 05 | Sealing Spacer Seat | NBR / Viton / PTFE | 01 |
| 06 | Piston | S. S. 304 / 316 | 01 |
| 07 | Bonnet Cover | CF8 / CF8M | 01 |
| 08 | Diaphragm | NBR / Viton / PTFE | 01 |
| 09 | End Cover | CF8 / CF8M | 01 |
| 10 | Spring | Spring Steel | 01 |
| 11 | Spring Guide | Brass / S. S. 410 | 01 |
| 12 | Diaphragm Washer | S. S. 304 / 316 | 01 |
| 13 | Adjusting Piston Bolt | S. S. 304 / 316 | 01 |
| 14 | End Cover O – Ring | NBR / Viton | 01 |
| 15 | Cover for O – Ring | NBR / Viton | 01 |
| 16 | Bonnet Fitting Bolt Bonnet Fitting Washer | S. S. 304 / 316 | 06 |
| 17 | Adjusting Bolt | S. S. 304 / 316 | 01 |
| 18 | Adjusting Nut | S. S. 304 / 316 | 01 |
