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Schneider Electric
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VACAT_July2011 July 2011
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Valve and Actuator Catalogue
Globe Valves
MZX
The MZX is a 3 way valve utilising a compact actuator for installations with
limited space.
The valves are suitable for a wide range of mixing applications such as
heating, cooling, air handling and domestic hot water systems.
Note: suitable for operation by AVUX, AVUM and AVUE actuators only.
MZX
Max Close-off Pressure kPa
Non Spring Return Actuators
Part number
Connection
Kvs
Rangeability
AVUE5304 (1)
AVUE5354 (2)
AVUX5202
AVUM5601
220N
220N
220N
220N
MZX4402
Rp ½”
2.6
50
1180
1180
1180
1180
MZX4452
Rp ¾”
4.2
50
720
720
720
720
MZX4501
Rp 1”
8.3
50
340
340
340
340
MZX4551
Rp 1¼”
12.5
50
200
200
200
200
MZX4601
Rp 1½”
21
50
120
120
120
120
MZX4651
Rp 2”
33
50
60
60
60
60
1) direct acting
(2) reverse acting
Replacement Packing Box: 0626-9-204
Design
3-way plug valve
Pressure class
PN 16
Flow characteristic Port 2
Modified Parabolic
Flow characteristic Port 3
Linear
Stroke
12.7mm
Rangeability (Kvs/Kv min)
50
Leakage (Ports 2-1)
0.1% max.
Leakage (Ports 3-1)
0.5% max.
Max. temperature of medium
120°C
Min. temperature of medium
2°C
Max. Glycol concentration
25%
Connections
Rp internal pipe thread (BSP to BS21)
Materials
Body
Bronze: Leaded Gunmetal BS1400 LG2
Stem
Stainless steel BS970 Grade 303 S42
Plug
Copper Alloy BS2874 CZ132 or BS2871 CZ 110
Sealing
Gland O Ring
Seat Top
Integral with body
Seat Bottom
Copper Alloy BS2874 CZ 132
(½” & ¾” valves)
Seat Bottom
Leaded Gunmetal BS1400 LG2
(1” to 2” valves)
Stem Packing
PTFE Chevrons
