Control Valve

ZRV Type V-adjustable Ball Valve

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Pneumatic V-adjustable Ball Valve Pneumatic V-adjustable Ball Valve Electric V-adjustable Ball Valve Electric V-adjustable Ball Valve

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Category : Control Valve. Tags : control valve, rotary actuator control valve

ZRV type V-adjutment ball valve (Pneumatic / Electric), disk with V type slot, which produce shear force with hard seal seat relative rotation to shut fiber to avoid jamming. It realizes to adjust pressure, flow, temperature, liquid level and other parameter. It has flow ability, high adjustment precision , large adjustment, good sealing, light weight and other feature. It can be used in mostly situation except small size, angular, three way connection. It is best produce instead of importing product, especially applicant to adjust mud and including fiber medium and including micron solid suspended matter . It is widely used in paper making, sugaring , petroleum , chemical, metal and other industry automatic control system.

V-adjustable ball valve Standard Specification

Body type: Straight casing ball vavle
Spool type: V opening sphere
Nominal size: DN50 ~300 NPS 2〞~12〞
Nominal pressure: PN16 ~40 CLASS 150LB ~300LB
Connection: flange: Flange FF, RF, RTJ, wafer and so on
Packing: V type PTFE, Flexible graphite
Seal gasket: Metal+graphite
Actuator: Pneumatic : pneumatic piston actuator, pneumatic diagragm actuator
Electric:DTR series, 3810 series
Surface painting: Green color, acrylic acid polyurthene ceramic paint.

V-adjustable ball valveModel Establishment

Z Actuator R Structure Nominal pressure Body material Nominal diameter
Z series control valve S: Pneumatic piston
J: Pneumatic diaphragm
D:Electric DTR
R: Electric 3810
R Rotary V: Standard V-adjustment
VF:Soft seal V-adjustment
PN16=16
CL150LB=
150 LB
C=WCB
LC=LCB
P=CF8
PL=CF3
R=CF8M
RL=CF3M
D=Special material
DN50= DN50
NPS2〞=NPS2〞
Example: Pneumatic piston V-adjustment ball valve, Pressure PN16, Body material WCB, Nominal diameter DN100, Model: ZSRV-16C DN100

V-adjustable ball valve Performance

Flow characteristic Approximate equal percentage
V-adjustable ball valve Approximate equal percentage
Adjustment scope Full chamber type 200:1 
Rated CV Hard seal CV 32~3700  Soft seal CV 32~3550
Travel Full open 90°
Allowable leakage Hard seal :IV (0.01% Rated capacity)  Soft seal:VI(Bubble level)
intrinsic error % Pneumatic ±2 Electric ±2.0
Hystersis % Pneumatic ≤1.5 Electric ≤1.0
Dead zone % Pneumatic ≤0.6 Electric ≤1.0
Note Parameters in performance sheet is based on the control valve with positioner and PTFE packing .

V-adjustable ball valve Selected parameter

Norminal diameterDN(mm) 25 40 50 65 80 100 125 150 200 250 300
Rated flow coefficient Cv Hard seal 32 78 90 160 250 360 610 1120 1850 2950 3700
Soft seal 32 78 90 150 240 345 580 1080 1800 2800 3550
Double action pneumatic actuator Air supply pressure 400KPa  
Modle Torque(N.M) PTFE packing, metal seal allow different pressure Unit:MPa  
ATD75 46.5 1.72 0.83 0.53 0.30 0.16              
ATD88 73.2   1.33 1.33 0.49 0.28              
ATD100 106         0.48 0.16            
ATD125 221         0.82 0.45 0.25 0.19        
ATD160 453           0.81 0.52 0.40 0.13      
ATD200 850             0.9 0.69 0.60 0.42 0.31  
Single action pneumatic actuator Air supply pressre 400KPa  
Model Torque(N.M) PTFE packing, metal seal allow different pressure Unit:MPa  
ATS88 44 0.60 0.24 0.16 0.08                
ATS100 60.7 1.10 0.49 0.31 0.17 0.08              
ATS125 126   1.21 0.79 0.44 0.25 0.06            
ATS160 269         0.56 0.20 0.10 0.08        
ATS200 467         0.81 0.56 0.31 0.24        
ATS240 880             0.9 0.69 0.46 0.24 0.17  
Electric actuator    
Model Torque(N.M) PTFE packing, metal seal allow different pressure Unit:MPa  
3810R-10 100 1.7 0.5 0.3 0.16              
3810R-30 300         0.48 0.25          
3810R-50 500           0.9 0.5 0.4 0.13    
3810R-100 1000                 0.7 0.38 0.2

V-adjustable ball valve Selected Actuator

         Model / Type Pneumatic piston Actuator Full electric type electric actuator
AT series 3810L series
Double action, single action Built-in control box, intelligent integration
Usage Adjustment, on-off Adjustment
Supply gas pressure or supply electric voltage Air supply pressure(spring scope) 400 Kpa G Power: AC 200V±10%  50Hz
Or power: AC 380V±10% 50Hz
Connector Air tube adapter: RC1/4 Normal type:wire intake  2-PF(G1/2〞)
Exd:Installing protective sleeve PF(G3/4〞)
Direct action Gas pressure increase disk anti-clockwise rotaion,valve close put signal increase disk anti-clockwise rotation, valve close
Reaction Gas pressure increase disk clockwise rotaion,valve open Input signal increase disk clockwise rotation, valve open
Input signal 40~20mA.DC(with electric pneumatic valve positioner) Input/output: 4~20mA.DC
Lag ≤1%FS(with positioner) ≤0.8%FS
Linearity 2%FS(with positioner) +1%FS
Working temperature -10℃~+70℃ Standard type: -10℃~+60℃
With spacer heater : -35℃~+60℃
Exd: -10℃~+40℃
Coating Green, acrylic polyurethane enamel Blue, acrylic polyurethane enamel
Option parts Electric-Pneumatic (Pneumatic-pneumatic)valve positioner,LFT,Valve position transmitter,solenoid valve,limited switch Space heater (normal type)
Note : Not standard configuration,need to state specially to custom

Selected Standard type material and inside struction

Chart 1: Body:WCB 
Body WCB LCB WC9
Seat 304 304 304
Disk 304 304 304
Gasket 316+ graphit /PTFE
Bushing 304 304 304
Bonnet WCB LCB WC9
Packing PTFE/ Flexible graphit
Packing gland 304 304 304
Clamp WCB WCB WCB
Stem 304 304 304
Bolt 45 40MnB 25Cr2Mo1VA
Nut 35 35 25Cr2Mo1VA
V-adjustable ball valve Internal structure Body: Stainless steel
Body CF8 CF8M CF3M
Seat 304 316 316L
Disk 304 316 316L
Gasket 316+ Graphit/PTFE
Bushing 304 316 316L
Bonnet CF8 CF8M CF3M
Packing PTFE/ Flexible graphit
Packing gland 304 316 316L
Clamp CF8 CF8M CF3M
Stem 304 316 316L
Bolt 304 316 316L
Nut 304 316 316L
Note:
  • Above is standard structure, seat is metal to metal, PTFE soft seat is VI seal option. We also provide STL coating strim.
  • Stardard body material is WCB and SS, We can provide many kinds alloy material to be used in high corrosive situation.