Electric V-Type Control Ball Valve
Electric V-Type Control Ball Valve
Electric V-Type Control Ball Valve

Electric V-Type Control Ball Valve

  • V-notch ball, metal or metal-to-PTFE seat, for regulating and tight shut-off
  • DN25-DN400, PN1.6-6.4 MPa, wafer or flanged per JB79-59
  • Self-cleaning wedge shearing action prevents ball jamming in fibrous media

Category

Overview

ZDRV Electric V-Type Control Ball Valve is a rotary ball valve with a metal seat, or a metal-to-PTFE sealing combination. It integrates the superior control characteristics of ball valves and butterfly valves into one unit, and can be used both as a regulating valve and as a shut-off valve. Its main features are:

  • One-piece valve body with no pipe connections, free from pipeline or bolting stresses; the pressure-retaining shell is not affected by sudden pressure changes;
  • A V-shaped ball that ensures accurate control across the full range even at low flow rates or with high-viscosity media;
  • The leak-tight, durable seat is lined at its outer diameter with a PTFE cup seal or O-ring with a stainless steel core; the seat is made of tungsten-cobalt hard alloy with a large cross-section, and its structure is further reinforced by an alloy corrugated spring;
  • When the valve closes, the V-notch and the seat produce a wedge shearing action, which provides a self-cleaning function and prevents the ball from jamming; it is particularly suitable for pipelines subject to scaling or freezing, and for media containing fibers and solid particles.

Suitable for high-viscosity fluids, suspensions, pulp and other dirty or fibrous media. The valve is directly coupled to the actuator, offering compact structure, small size, light weight, low flow resistance and stable, reliable operation. On request, the actuator can be configured with UNIC, PSQ, HQ, DHL series electric actuators, or GTX and AL series pneumatic piston actuators.

Technical Parameters

Nominal Diameter DN (mm) 25~400
Nominal Pressure PN (MPa) 1.6~6.4
Nominal Pressure Ps (MPa) Shell Test 2.4~9.6
Seal Test 1.76~7.0
Material / Code C P R
Main Parts Body WCB ZG1Cr18Ni9Ti ZGOCr18Ni12Mo2Ti
Ball & Stem 2Cr13 ZG1Cr18Ni9Ti ZG0Cr18Ni12Mo2Ti
Stem 2Cr13 1Cr18Ni9Ti 0Cr18Ni12Mo2Ti
Seat Ring PTFE, stainless steel, hard alloy
Packing PTFE, flexible graphite
Service Conditions Suitable Media Water, steam, oil Nitric acid type Acetic acid type
Suitable Temperature -28~400℃ -28~500℃
Actuator Model CH, 3410R, UNIC, PSQ, HQ, DHL and other series of electronic electric actuators
Connection Type Wafer type and flanged type, flanges to JB79-59 standard

Actuator Technical Parameters

Basic Error
Hysteresis
Dead Band
Input Signal
Output Signal
≤±2% of full travel ≤±2% of full travel ≤0.8% of full travel 4~20 mA DC 4~20 mA DC

Flow Characteristics & Performance Data

Nominal Diameter DN (mm)
25
32
40
50
65
80
100
125
150
200
250
300
350
400
Rated Flow Coefficient Cv 32 43 78 90 160 250 360 610 1120 1850 2950 3700 7195 11466
Nominal Pressure PN (MPa) 1.6, 2.5, 4.0, 6.4
Flow Characteristic Approximate equal percentage (refer to typical characteristic curves), linear characteristic
Ball Rotation Angle (°) 0° to 90° (adjustable)
Allowable Leakage Class Soft seal: zero leakage; Hard seal: ≤0.001% of rated Cv Soft seal: Class VI micro-bubble; Metal seal: ≤0.065% of rated Cv
Operating Time (s/90°) 8.5~30 36~60
Rangeability 250:1 300:1

Overall Dimensions

Nominal Diameter DN (mm)
Dimensions (mm)
Wafer
Flanged
L
H1
H2
D
D
D1
D2
q
Z-Φd
25 64 110 85 65 14 4-14 102 277 60
40 82 145 110 85 16 4-18 114 305 75
50 100 160 125 110 16 4-18 124 364 95
65 120 180 145 120 18 4-18 145 379 105
80 131 195 160 135 20 8-18 165 389 120
100 158 215 180 155 20 8-18 194 402 140
125 180 245 210 185 22 8-18 213 426 165
150 216 280 240 210 24 8-23 229 453 185
200 268 335 295 265 26 12-23 243 473 205
250 326 405 355 320 30 12-25 297 540 240
300 460 460 410 375 30 12-25 338 590 290
350 470 – – – –   –    
400 525 – – – –   –    

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