Size 80mm Stainless Steel Material China Standard Floating Ball Valve
Usage
The valve is composed of valve body, ball, stem, handle and other parts, by turning the handle to rotate the stem
90°, the stem drives the ball to rotate 90° to realize opening and closing.
The valve can be used for opening and closing of pipelines and equipment with corrosive media
Connect size
| Type | DN | L | D | D1 | D2 | b-f | Z-Φd | H |
| Q41F-16P | 15 | 130 | 95 | 65 | 45 | 14-2 | 4-Ф14 | 88 |
| 20 | 140 | 105 | 75 | 55 | 14-2 | 4-Ф14 | 91 |
| 25 | 150 | 115 | 85 | 65 | 14-2 | 4-Ф14 | 97 |
| 32 | 165 | 135 | 100 | 78 | 16-2 | 4-Ф18 | 105 |
| 40 | 180 | 145 | 110 | 85 | 16-2 | 4-Ф18 | 120 |
| 50 | 200 | 160 | 125 | 100 | 16-2 | 4-Ф18 | 126 |
| 65 | 220 | 180 | 145 | 120 | 18-2 | 4-Ф18 | 152 |
| 80 | 250 | 195 | 160 | 135 | 20-2 | 8-Ф18 | 170 |
| 100 | 277 | 215 | 180 | 155 | 20-2 | 8-Ф18 | 202 |
| 125 | 320 | 245 | 210 | 185 | 22-2 | 8-Ф18 | 250 |
| 150 | 360 | 280 | 240 | 210 | 24-2 | 8-Ф23 | 279 |
| 200 | 403 | 335 | 295 | 265 | 26-2 | 12-Ф23 | 322 |
Material of main parts
| Part Name | Material |
| Body | CF8 |
| Stem,Ball | F304 |
| O-ring,Packing | PTFE |
Technical parameters
| Nominal pressure | 1.6 ,2.5MPa |
| Nominal diameter | DN15-DN200mm |
| Temperature | ≤150℃ |
| Mediun | Water, Oil, Gas |
| Design marking | GB/T 12237 |
| Face to Face | GB/T 12221 |
| Inspection and testing | GB/T 26480 |
Instructions for storage, installation and use
1. This product should be kept in a dry warehouse and is strictly prohibited to be stored in the open air.
2. Long-term storage, regular maintenance.
3. This product can be installed in any position of pipeline or equipment, but it should be convenient to open and close.
4. Before installation, the pressure test should be carried out to meet the requirements before installation.
5. The pipe and valve cavity should be cleaned before installation.
6. The product shall not be subjected to a large external force after installation.
7. The position of the handle indicates whether the valve is open or closed. The handle opens when it is flat with the pipe axis, and closes when it is perpendicular to the pipe axis.
8. The operating conditions shall be consistent with the performance specification requirements.
Possible faults and troubleshooting methods
| Possible faults | The cause of the failure | Fault elimination method |
| Leakage of sealing surface | 1. The middle flange bolt is loose. 2. Damage to sealing surface. | 1. Tighten the middle flange bolt evenly. 2. Repair the sealing surface or replace the parts. |
| Packing leakage | 1. Insufficient packing. 2. The packing is not tightly pressed. | 1 Add filler. 2. Press the packing tightly. |
| Leakage at the middle mouth | 1. The middle flange pad is damaged or invalid. 2. Middle flange bolts are not tightened. | 1. Replace the middle flange pad. 2. Tighten the middle flange bolt evenly. |
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Size 80mm Floating Ball Valve Stainless Steel Material Images
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