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Material & Actuator Selection for V Port Ball Valves

1. Material selection of V port ball valves

Technical Drawing

G.A drawing of V port ball valves

Technical G.A drawing of a V port ball valve, trunnion mounted with RF flange ends.

seating design for V port ball valves

Seating designs for V port ball vlve: metal seated, soft seated, high-temp. structure.

See more specifications of trunnion mounted V port ball valves. Also see the dimensional data sheets for RF flanged type and wafer type respectively.

Material Specification

Item No.Part Name
1Ball
2O-Ring
3Seat
4Screw
5Retainer
6Body
7Gasket
8Bolt
9Bottom Cap
10O-Ring
11Gasket
12Bottom Stem
13Bearing
14Bearing
15Upper Stem
16Stem Packing
17Gland Flange
18Bolt
19Nut
The illustration & part name of a typical trunnion mounted V port ball valve.

 

Part NameMaterial
BodyASTM A216 WCB, ASTM A217 WC6, ASTM A351 CF8/ CF8M
StemASTM A182 F304/ F316
RetainerASTM A351 CF8/ CF8M
SeatPTFE, SS304, SS316, SS316+STL, SS316+Cr
PackingPTFE, Graphite
O-RingNBR, Fluorin Rubber
The conventional material specification for trunnion mounted V port ball valves.

2. Flow characteristics and actuator selection

Flow Characteristics

flow characteristic cure of V port ball valves

The flow characteristic curve of V port ball valves: Equal Percentage.

Flow Coefficient Cv
DN253240506580100125150200250300350400
Cv27477011017028041075098017202900380070009800
The flow coefficient Cv(at fully-open position) of Metals Valve's V port ball valves.

 

DN253240506580100125150200250300
Soft Seated6.46.46.04.83.23.02.41.21.31.10.90.6
Metal Seated6.05.84.23.72.42.31.41.20.90.80.70.4
The allowable pressure drop for Metals Valve's V port ball valves with pneumatic actuators. Unit: MPa(Air Supply = 0.6MPa).

Pneumatic Actuator

Wafer type V port ball valve with pneumatic actuator

A wafer type V port ball control valve, 150LB 6″, trunnion mounted with pneumatic actuator.

FunctionAngle-travel for throttling or on-off services.
StructurePneumatic Cylinder Type, Spring Return Type(Double Acting)
Actuator TypeDirect Action, Reverse Action.
Air Supply0.6 MPa(G)
ConnectionRc 1/4"
ActionDirection action: air to valve shut; Reverse action: air to valve open.
Intrinsic Error±2%(with positioner), ±5%(without positioner)
Hysteresis1%(with positioner); 5%(without positioner)
Hysteresis Erro1%(with positioner); 3%(without positioner)
Ambient Temp.-20~80℃
AccessariesE/P, P/P-Positioner; Air-Set; Solenoid Valve; Limit Switch, etc.
The technical specification of pneumatic actuators.

 

Double ActingPAD075PAD092PAD105PAD125PAD140PAD160PAD190PAD210PAD270
Torque(N*m)60.4136.3197.3308526802129215792463
Single ActingPAS091PAS125PAS140PAS190PAS210PAS240PAS270PAS300PAS400
Torque(N*m)71.2159.5281.77068601270203325633026
Pneumatic actuators for V port ball control valves: Models & Output Torque

Electric Actuator

Wafer type V port ball valve with electric actuator

A wafer type V port ball control valve, electric actuator operated, 4″ 300LB.

FunctionElectric actuators for throttling and on-off applications.
StructureSolid State Electric Type
Power Voltage220 VAC
Resolution±1%
Hysteresis2% FS
Ambient Temperature-20~80℃
Optional AccessoriesTorque Switch, Space Heater, Junction Box, Potentiometer, etc.
The technical specifications of electric actuators.

 

Actuator TypeEA010EA020EA040EA060EA100EA150EA200EA250
Torque(N*m)1002004006001000150020002500
Travel Angle0~90°0~90°0~90°0~90°0~90°0~90°0~90°0~90°
Acting time(s)3030303030456075
The electric actuators for V port ball valves: Types & Output Torque Values.

Actuator Selection

DNPneumatic ActuatorElectric Actuator
Double ActingSingle Acting
25PAD075PAS091EA010
32PAD075PAS091EA010
40PAD092PAS125EA010
50PAD092PAS125EA010
65PAD092PAS125EA010
80PAD105PAS140EA020
100PAD105PAS140EA020
125PAD125PAS140EA040
150PAD140PAS192EA060
200PAD160PAS200EA100
250PAD190PAS240EA150
300PAD210PAS270EA200
350PAD270PAS270EA250
400PAD270PAS270EA250
The actuator(both pneumatic and electric) configuration table for trunnion mounted V port ball valves. Applicable pressure ratings: 1.6MPa ~ 4.0MPa(150LB~300LB). Others are available upon request.
CATEGORY AND TAGS:

Technical

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