Product Overview

ManualsBrandsKMC Controls ManualsDampers1/2" Two-Way Globe Zone Control Valve with Normally Open, Spring Return Actuator, 24 VAC (4.0 Cv)

Table Of Contents

Features

◆ Choice of tri-state/oating or proportional fail-in-

place or two-position (NO or NC) spring-return

fail-safe

◆ Compact size

◆ Spring-return fail-safe actuators feature easy

manual override, visual position indication, UL

listing for plenum installations, and heat-resistant

lead wires

◆ Non-fail-safe actuators feature manual override

(with 3 mm hex wrench), visual position indica-

tion, and are CE compliant and UL listed

Description 1

Models 1

Features 1

Speciﬁcations 2

Accessories/Repair Parts 3

Dimensions 4

Description

These globe zone control valves are designed to

regulate the ow of hot or chilled water to such

applications as VAV terminal unit reheat coils, fan

coil units, and induction units. The compact design

of these units allows easy installation within small

enclosures.

Valve bodies, available in 1/2 to 1" line sizes, are all

normally open. The actuator determines the fail po-

sition. Actuators have position indication and man-

ual override. Replacement actuators can be installed

on the valve bodies without tools.

Speciﬁcations and design subject to change without notice.

VEZ-41/42/43 Series

2-Way, NPT, Zone Control Valves (

⁄2 to 1")

With Tri-State

or Proportional

Actuator

With 2-Position

Fail-Safe

Actuator

Use this chart to select the desired model of valve:

Models

Actuator

A: 10–0 VDC (closed-open) Proportional (MEP-3516)

B: 0–10 VDC (closed-open) Proportional (MEP-3511)

F: Tri-State, 24 VAC, Floating (MEP-3510)

M: NO, 2-pos., 24 VAC, Spring Return (MEP-3503)

N: NC, 2-pos., 24 VAC, Spring Return (MEP-3501)

P: NO, 2-pos., 120 VAC, Spring Return (MEP-3504)

Q: NC, 2-pos., 120 VAC, Spring Return (MEP-3502)

(NOTE: Actuators “A,” “B,” and “F” are fail-in-place)

Size/Cv

02A: 1/2"; 1.0 Cv

02B: 1/2"; 2.5 Cv

02C: 1/2"; 4.0 Cv

03A: 3/4"; 4.1 Cv

04A: 1"; 7.0 Cv

Control Type

1: Normally Open (actuator “M” or “P” only)

2: Normally Closed (actuator “N” or “Q” only)

3: Fail in Place (actuator “A,” “B,” or “F” only)

VEZ-4 X YYY MB Z

Summary of content (4 pages)

PAGE 1
VEZ-41/42/43 Series 2-Way, NPT, Zone Control Valves (1⁄2 to 1") Description With 2-Position Fail-Safe Actuator These globe zone control valves are designed to regulate the flow of hot or chilled water to such applications as VAV terminal unit reheat coils, fan coil units, and induction units. The compact design of these units allows easy installation within small enclosures. Valve bodies, available in 1/2 to 1" line sizes, are all normally open. The actuator determines the fail position.
PAGE 2
Specifications Valve Body Service Actuators All Proportional Hot or chilled water, up to 50% glycol Connections Female NPT Seat Style Metal to metal Valve Body Rating ANSI Class 125 24 in-lb. (105 N•m) torque 24 VAC Power, 50/60 Hz, 2.5 VA, 34 sec. running time, 9 oz. (0.25 kg) 24 VAC, 50/60 Hz, 0.8 VA, 150 sec. running time, 9 oz. (0.25 kg) 24 VAC or 120 VAC, 60 Hz, 9.8 VA, 35 sec. running time, 1.18 lb. (0.54 kg) Tri-State Max. Inlet Pressure 125 psig (862 kPa) Max.
PAGE 3
400 300 200 80 90 100 70 60 50 40 30 20 8 9 10 Differential Pressure ∆ p ( kPa) 60 50 40 30 100 80 20 10 8 .0 ) Cv = 7 1" (25 .1 ) Cv = 4 " (20 4 / 3 ), 5 1/2" (1 = 2.5 (15) Cv 1/2" 30 25 20 16 10 8 1 6 5 4 3 1/2" (15) Cv 6 5 4 3 2 = 1.0 1 0.8 0.6 0.5 0.4 3 2 0.3 11 1 0.8 Flow Rate ( m 3 /hr) Flow Rate (gpm) 60 50 40 0.2 0.6 0.5 0.4 0.3 0.1 0.08 0.06 0.05 2 0.2 0.04 0.03 70 60 50 40 30 20 8 9 10 7 6 5 4 3 2 1 0.
PAGE 4
Dimensions Dimensions in inches (mm) and weight in pounds (kg) 3.4 (85.2) Two-Position Fail-Safe Actuator Actuator Weight lb. (kg) 1.18 (0.54) 4.4 (111) Tri-State or Proportional Actuator 2.3 (58) 2-7/8 (73) 3-1/4 (82) Actuator Weight lb. (kg) 1-7/8 (48) 0.56 (0.25) 3-1/4 (83) NOTE: Minimum access space recommended is 8-inches (200 mm) above the actuator and beside the terminal plug. Valve Body (see table) C Valve Body Size Inches (mm) A B C Weight lb. (kg) 0.5 (15) 2.76 (70) 1.63 (41.