V-adjustable ball valve

What is a V-adjustable ball valve ?

ZRV type V-adjutment ball valve, a disk with V type slot, which produces sheer force with hard seal seat relative rotation to shut fiber to avoid jamming. It realizes to adjust pressure, flow, temperature, liquid level, and another parameter. It has flowability, high adjustment precision, large adjustment, good sealing, lightweight and other features. It can be used in most situations except small size, angular, three-way connection. It is best to produce instead of importing product, especially applicants to adjust mud and including fiber medium and including micron solid suspended matter. It is widely used in papermaking, sugaring, petroleum, chemical, metal, and other industry automatic control system.

Pneumatic V-Adjustable Ball Valve
Pneumatic V-Adjustable Ball Valve
Electric Eccentric V-Adjustable Ball Valve
Electric Eccentric V-Adjustable Ball Valve

Standard Specification

Body type:Straight casing ball valve
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 diagram actuator
Electric: DTR series, 3810 series
Surface painting:Green color, acrylic acid polyurethane ceramic paint.

Model Establishment

ZActuatorRStructureNominal pressureBody materialNominal diameter
Z series control valveS: Pneumatic piston
J: Pneumatic diaphragm
D:Electric DTR
R: Electric 3810
R RotaryV: Standard V-adjustment
VF: Soft seal V-adjustment
150 LB
D=Special material
DN50= DN50
Example: Pneumatic piston V-adjustment ball valve, Pressure PN16, Body material WCB, Nominal diameter DN100, Model: ZSRV-16C DN100


Flow characteristicApproximate equal percentage
Adjustment scopeFull chamber type 200:1
Rated CVHard seal CV 32~3700  Soft seal CV 32~3550
TravelFull open 90°
Allowable leakageHard seal: IV (0.01% Rated capacity)  Soft seal: VI(Bubble level)
intrinsic error %Pneumatic ±2Electric ±2.0
Hysteresis %Pneumatic ≤1.5Electric ≤1.0
Dead zone %Pneumatic ≤0.6Electric ≤1.0
Note Parameters in the performance sheet are based on the control valve with positioner and PTFE packing.

Selected parameter

Normal diameterDN(mm)2540506580100125150200250300
Rated flow coefficient CvHard seal3278901602503606101120185029503700
Soft seal3278901502403455801080180028003550
Double action pneumatic actuatorAir supply pressure 400KPa
ModleTorque(N.M)PTFE packing, metal seal allow different pressure Unit: MPa
Single action pneumatic actuatorAir supply pressure 400KPa
ModelTorque(N.M)PTFE packing, metal seal allow different pressure Unit: MPa
Electric actuator
ModelTorque(N.M)PTFE packing, metal seal allow different pressure Unit: MPa
3810R-1001000   0.70.380.2

Selected Actuator

         Model / TypePneumatic piston ActuatorFull electric type electric actuator
AT series3810L series
Double action, single actionBuilt-in control box, intelligent integration
UsageAdjustment, on-offAdjustment
Supply gas pressure or supply electric voltageAir supply pressure(spring scope) 400 Kpa GPower: AC 200V±10%  50Hz
Or power: AC 380V±10% 50Hz
ConnectorAir tube adapter: RC1/4Normal type: wire intake  2-PF(G1/2〞)
Exd: Installing protective sleeve PF(G3/4〞)
Direct actionGas pressure increase disk anti-clockwise rotation, valve closeput signal increase disk anti-clockwise rotation, valve close
ReactionGas pressure increase disk clockwise rotation, valve openInput signal increase disk clockwise rotation, valve open
Input signal40~20mA.DC(with electric pneumatic valve positioner)Input/output: 4~20mA.DC
Lag≤1%FS(with positioner)≤0.8%FS
Linearity2%FS(with positioner)+1%FS
Working temperature-10℃~+70℃Standard type: -10℃~+60℃
With spacer heater: -35℃~+60℃
Exd: -10℃~+40℃
CoatingGreen, acrylic polyurethane enamelBlue, acrylic polyurethane enamel
Option partsElectric-Pneumatic (Pneumatic-pneumatic)valve positioner, LFT, Valve position transmitter, solenoid valve, limited switchSpace heater (normal type)
Note: Not standard configuration, need to state especially to custom
Scroll to Top