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CN | EN

Lining Ball Valve（Pneumatic）

Technical Parameters

Product model: Q641F46

Nominal diameter: DN50~DN600mm

Nominal pressure: PN1.0 MPa ~1.6MPa

Applicable temperature: -29℃~150℃

Applicable medium: concentrated acid, sulfuric acid, aqua regia

Product Details

Product Design Features

The lining ball valve uses a ball with a circular hole as the opening and closing member, and the ball rotates around the center line of the body with the stem to open and close the valve. The special molding process is adopted to make the sealing surface dense and good; besides, with the combination of V-type PTFE padding, the valve is made to reach zero leakage. The ball and the stem are cast as one piece, which eliminates the possibility that the stem punches out of the pressure-bearing part due to the pressure change, thereby ensuring the safety in use. The ball valve with a fluoroplastic lining layer has extremely high chemical stability, and thus it is suitable for any strongly corrosive chemical media. With the full-pass floating ball valve structure, it can close the component leakage in the entire pressure range, so that the pipeline system carries out pipeline cleaning and pipeline maintenance。


The lining ball valve is designed specially to control the opening and closing of various strong corrosive media, and it is widely used in the oil industry, the chemical industry, the dyeing industry, the pesticide industry, the acid and alkali industry, and other industries. It is the optimal choice for an anti-corrosion valve at present.


Main overall connection dimensions

DN(mm) Dimensions Flange size
PN1.6MPa PN2.5MPa
L H L1 D D1 D2 n-φd D D1 D2 n-φd
15 130 185 140 95 65 46 4-14 95 65 46 4-14
20 140 191 140 105 75 45 4-14 105 75 56 4-14
25 150 193 140 115 85 65 4-14 115 85 65 4-14
32 165 212 164 140 100 76 4-18 140 100 76 4-18
40 180 217 164 150 110 84 4-18 150 110 84 4-18
50 200 260 190 165 125 99 4-18 165 125 99 4-18
65 220 293 210 185 145 118 4-18 185 145 118 8-18
80 250 323 247 200 160 132 8-18 200 160 132 8-18
100 280 382 276 220 180 156 8-18 235 190 156 8-22
125 320 468 348 250 210 184 8-18 270 220 184 8-26
150 360 510 378 285 240 211 8-22 300 250 211 8-26
200 400 655 524 340 295 266 12-22 360 310 274 12-26
250 630 / / 405 355 319 12-26 425 370 330 12-30
300 750 / / 460 410 370 12-26 485 430 389 16-30


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