Kmc-controls VCZ-44 Series Bedienungsanleitung PDF herunterladen (Seite 2)

VEZ-41/44 Series, 2-Way/3-Way, NPT, Pneumatic Zone Control Valves 2 Installation Guide

Diverting

Asthevalvestemmovesdownward,theow

throughVCZ-44portsAB-Adecreasesandtheow

throughportsAB-Bincreases.Asthevalvestem

movesupward,theowthroughportsAB-Ain-

creasesandtheowthroughportsAB-Bdecreases.If

thereisalossofsignalpressure,theactuatorreturns

the valve to its normal position—the valve fails with

ow to port A.

Mixing

Thethree-wayVCZ-44zonevalvesarediverting

valves.However,theymaybeusedasmixingvalves

whenconnectedinthereturnowasshowninthe

diagrambelowandifsystemanddierentialpres-

suresarewithinthegrayareaofthechartbelow.

Bypass Coil

Three-Way Valve in Return Flow

AB A

Pressure

(See

Chart)

COM

14.5 (100)

11.6 (80)

20.3 (140)

17.4 (120)

8.7 (60)

5.8 (40)

4.3 (30)

94 (650)

2.9 (20)

14.5

(100)

(200)

43.5

(300)

(400)

72.5

(500)

(600)

101.5

(700)

116

(800)

130.5

(900)

System Pressure in psi (kPa)

Differential Pressure in psi (kPa)

Allowable Mixing Applications

3-Way Valve Applications

Connection

Connectthemainairsupply(30psimax.)tothe1/8"

NPTportonthetopoftheactuator.

1/8" NPT

Air Connection

Ring Nut to

Valve Body

Mounting Actuator on Valve Body

REMOVE Black

Plastic Attachment

Support Ring

if Present

1 2 3

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