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VQ340F、VQ340H、VQ340YWorm gear flange type V-type ball valve

  • Profile:

    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.

Product overview

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

Performance specifications
VQ340F、VQ340H、VQ340YMain performance specification for worm gear flange type v-ball valve
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  
Parts material
VQ340F、VQ340H、VQ340YMain parts materials of worm gear flange type V-type ball valve
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
Dimensional drawing

 

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Connection size
VQ340F、VQ340H、VQ340YMain connecting dimensions of worm gear flange type V-type ball valve(mm)
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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