Characteristics
Manual damper for regulating amount of gas. Various types are prepared.
Specifications
| Pressure | Under 20kPa |
| Temperature | Under 60℃ |
| Accessories | Mate Flange The flange conforms to JIS 5K. |
HDG Type

Outline drawing / Dimensions

| Type | A | B | C | D | D′ | E | Mass(kg) |
| HDG-20 | Rc 3/4 | 70 | 47 | 60 | 160 | 88 | 1.0 |
| HDG-25 | Rc 1 | 0.9 | |||||
| HDG-32 | Rc 11/4 | 75 | 57 | 66 | 166 | 99 | 1.1 |
| HDG-40 | Rc 11/2 | 80 | 63 | 69 | 169 | 105 | 1.3 |
| HDG-50 | Rc 2 | 85 | 76 | 76 | 176 | 108 | 1.7 |
| HDG-65 | Rc 21/2 | 90 | 93 | 85 | 185 | 135 | 2.1 |
| HDG-80 | Rc 3 | 100 | 106 | 92 | 192 | 149 | 2.6 |
| HDG-100 | Rc 4 | 120 | 134 | 107 | 207 | 178 | 4.2 |
※D’ dimension is TSL type.
※Fluid temperature under 400℃ is for Model TSL.
HDGF Type

Outline drawing / Dimensions

| Type | A | B | C | D | D′ | E | F | G | Mass(kg) |
| HDGF-40 | 40A(JIS5K) | 80 | 120 | 98 | 198 | 95 | 15 | 4 | 5.0 |
| HDGF-50 | 50A(JIS5K) | 85 | 130 | 103 | 203 | 105 | 15 | 4 | 5.9 |
| HDGF-65 | 65A(JIS5K) | 90 | 155 | 115 | 215 | 130 | 15 | 4 | 8.1 |
| HDGF-80 | 80A(JIS5K) | 100 | 180 | 128 | 228 | 145 | 19 | 4 | 10.7 |
| HDGF-100 | 100A(JIS5K) | 120 | 200 | 139 | 239 | 165 | 19 | 8 | 14.1 |
※F’ dimension is TSL type.
※Mass represents the mass with companion flange,bolts and nuts and packing all installed.
Download of DXF data
※ Download procedure
- Put the cursor on the model designation of the outline drawing you want to download, and click the right button of the mouse.
- Select “Save Target As (A)” on the menu.
- Select a location to save, and click “Save.”
※ Some security software does not permit downloading. If that happens, set the securities to “OFF” before downloading.
Characteristic(△P=1kPa)


Differential pressure correction factor
| Differential pressure(kPa) | Factor |
| 0.05 | 0.22 |
| 0.1 | 0.32 |
| 0.25 | 0.50 |
| 0.50 | 0.71 |
| 1.00 | 1.00 |
| 1.50 | 1.22 |
| 2.00 | 1.41 |
| 3.00 | 1.73 |
| 4.00 | 2.00 |
| 5.00 | 2.24 |
| 6.00 | 2.45 |
| 7.00 | 2.65 |
| 8.00 | 2.83 |