Jordan Valve Mark 128PQC Series Control Valve - Manual (Page 6)

Table 2: Replacement Packing and Trim Assembly Part Numbers
Port Diameter
TFE Ring Packing and Heat-Treated
44OC SST Valve Plug and Cage
TFE V-Ring Packing, Nitronic 50 SST
Valve Plug and Cage, and Inconel
X750 Packing Spring
ln mm
Mark 128PQC 17-7PH SST
Packing Spring
Mark 128 PQC
1/4 6.5 15A2611X012 15A2611X042
3/8 9.5 15A2611X022 15A2611X052
1/2 12.7 15A2611X032 15A2611X062
M
ark
128PQC S
erieS
C
ontrol
V
alVe
-6-
Figure 3: Stem and Diaphragm Assembly Dimensions
Valve
Design
Dimension A
Fail-Open Fail-Close
ln. mm ln. mm
Mark
128PQC
2.72 69.1 2.46 62.5
15
4 2
34
35
33
16
A
Dimension
A
Dimension
Fail Close Assembly
Fail Open Assembly
16 33
35
34
2
4
15