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Location:Home > Product Center > Ball Valve > VQ340F、VQ340H、VQ340YWorm gear flange type V-type ball valve
VQ340F、VQ340H、VQ340YThe worm gear flange type V-type ball valve is a kind of rotary ball valve with metal core or metal to polytetrafluoroethylene seal. It combines the Zui good control characteristics of ball valve and butterfly valve, and can be used as control regulating valve and shut-off valve.
VQ340F、VQ340H、VQ340YThe worm gear flange type V-type ball valve is a kind of rotary ball valve with metal core or metal to polytetrafluoroethylene seal. It combines the Zui good control characteristics of ball valve and butterfly valve, and can be used as control regulating valve and shut-off valve. The main features of manual V-type ball valve are as follows:
(1) the integral valve body without any pipe joint is not affected by pipe or bolt stress. Since the valve body has no pipe joint, the pressure shell will not be affected by pressure "mutation";
(1) it has a V-shaped valve body, which can ensure the control accuracy in the whole range even under the condition of small flow rate or high viscosity medium;
(3) the leakage proof and durable valve seat is lined with PTFE cup-shaped or O-ring with stainless steel inner core at its outer diameter. The valve seat is made of tungsten cobalt cemented carbide with large cross-section. The structure of the valve seat is further enhanced by an alloy corrugated spring;
(4) when the flange V-type ball valve is closed, the wedge-shaped shear effect occurs between the V-notch and the valve seat, which not only has the self-cleaning function, but also can prevent the ball core from sticking. The manual V-type ball valve is especially suitable
Nominal pressure PN(MPa) | Test pressure | Applicable media | Applicable temperature | |
---|---|---|---|---|
Shell test | Sealing test | |||
1.6 | 2.4 | 1.76 | Water, oil, gas and high viscosity, fiber, solid particles and other media | -28℃~550℃ |
2.4 | 3.75 | 2.75 | ||
4.0 | 6.0 | 4.4 | ||
Application specification | Connecting flange | JB79-59 GB20592-97 AMSI B16.5 | ||
Inspection and test |
Part name | Valve material | |
---|---|---|
Valve body and cover | WCB | CF8 |
seal ring | 2Cr13+nitridation | 304+nitridation |
sphere | 2Cr13+Hard lattice | 304+Hard lattice |
Valve seat and stem | 2Cr13 | 304 |
shim | Flexible graphite + stainless steel | Flexible graphite + stainless steel |
Stud bolt | 35CrMoA | 1Cr18Ni9Ti |
Nominal pressure Or pressure level |
Nominal diameter | |||||||
---|---|---|---|---|---|---|---|---|
(mm) | (in) | L | L1 | d | d1 | H1 | H | |
PN1.6MPa | 25 | - | - | - | 64 | 38 | 57 | 200 |
40 | - | - | - | 82 | 49 | 63 | 205 | |
50 | - | 124 | 62 | 100 | 60 | 92 | 225 | |
65 | - | 145 | 72.5 | 120 | 75 | 100 | 235 | |
80 | - | 165 | 82.5 | 131 | 89 | 108 | 260 | |
100 | - | 194 | 97 | 158 | 113 | 117 | 270 | |
125 | - | 210 | 105 | 180 | 140 | 140 | 320 | |
150 | - | 229 | 114.5 | 216 | 164 | 177 | 340 | |
200 | - | 243 | 121.5 | 268 | 205 | 200 | 390 | |
250 | - | 297 | 148.5 | 326 | 259 | 252 | 420 | |
300 | - | 338 | 169 | - | 300 | 270 | 510 | |
PN2.5MPa | 25 | - | - | - | 64 | 38 | 57 | 200 |
40 | - | - | - | 82 | 49 | 63 | 205 | |
50 | - | 124 | 62 | 100 | 60 | 92 | 225 | |
65 | - | 145 | 72.5 | 120 | 75 | 100 | 235 | |
80 | - | 165 | 82.5 | 131 | 89 | 108 | 260 | |
100 | - | 194 | 97 | 158 | 113 | 117 | 270 | |
125 | - | 210 | 105 | 180 | 140 | 140 | 320 | |
150 | - | 229 | 114.5 | 216 | 164 | 177 | 340 | |
200 | - | 243 | 121.5 | 268 | 205 | 200 | 390 | |
250 | - | 297 | 148.5 | 326 | 259 | 252 | 420 | |
300 | - | 338 | 169 | - | 300 | 270 | 510 | |
CLASS150 | 25 | - | - | - | 64 | 38 | 57 | 200 |
40 | 11/2 | - | - | 82 | 49 | 63 | 205 | |
50 | 2 | 124 | 62 | 100 | 60 | 92 | 225 | |
65 | 21/2 | 145 | 72.5 | 120 | 75 | 100 | 235 | |
80 | 3 | 165 | 82.5 | 131 | 89 | 108 | 260 | |
100 | 4 | 194 | 97 | 158 | 113 | 117 | 270 | |
125 | 5 | 210 | 105 | 180 | 140 | 140 | 320 | |
150 | 6 | 229 | 114.5 | 216 | 164 | 177 | 340 | |
200 | 8 | 243 | 121.5 | 268 | 205 | 200 | 390 | |
250 | 10 | 297 | 148.5 | 326 | 259 | 252 | 420 | |
300 | 12 | 338 | 169 | - | 300 | 270 | 510 |
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