Powers 593 Series Flowrite II Heavy Duty Bronze Globe Control Valves - Manual (Page 14)

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TABLE 3
VALVE
ASSEMBLY VALVE 46 ACTUATOR 46 SPRING 4C ACTUATOR 4C SPRING SPRING STEM VALVE
TYPE ACTION SIZE PART # PART# PART # PART# QUANTITY PART # TRAVEL (in)
WM N/A 1/2 672-022D 672-615 672-648D 672-646 6 672 636 1/8
N/A 1/2 672-022D 672-642 672-648D 672-646 6 672 636 1/8
N/A 3/4 672-022D 672-615 672-648D 672-646 6 672 636 3/16
N/A 3/4 672-022D 672-642 672-648D 672-646 6 672 636 3/16
N/A 1 672-022D 672-615 672-648D 672-646 6 672 636 1/4
N/A 1-1/4 672-022D 672-615 672-648D 672-646 4 672 636 5/16
N/A 1-1/2 672-022D 672-615 672-648D 672-646 4 672 636 5/16
N/A 2 672-022D 672-615 672-647D 672-646 4 672 636 5/16
MI N/A 2-1/2 672-671D 672-642 672-465D 672-646 6 672636B 5/8
N/A 3 672-671D 672-642 672-465D 672-646 6 672636B 3/4
N/A 4 672-671D 672-642 672-465D 672-646 6 672636B 1
*4X Actuators add 6 Springs #672-645.
MODIFICATION DATA TABLES
These tables provide actuator design information with regard to the
specific valve type and size. Use this information to determine
which springs to use, the number of springs required, and spring kit
part numbers.
These are the correct preload adjustments when mounting an
actuator on a valve or changing stems:
5 psi for NO assemblies
7-10 psi for NC assemblies
Use these pressure and the "Valve Travel" data to properly adjust the
stem length of your actuator/valve assembly.
Example:
Change a
Single Seat Stainless Trim reduced port 1/2A size valve, with a
normally open actuator assembly (593 VE A50 NO)
to a
Single Seat Stainless Trim 1/2" size valve with a Normally Closed
assembly (593 SS 050 NC).
1. Look up the references to the type of valve you want. In this
case, refer to the SS Valve Type, Table 4.
2. You need a new stem, part #672636A. You also need four
#672-615 springs.
3. Now install the new parts. Refer to the section on Changing
Actuator Action from DA to RA.
4. Also consult the section Changing Springs on a Reverse Acting
Actuator. See Figure 3A & B for Typical 4 Spring Installation
for symmetrical spring orientation.
TABLE 2
VALVE ASSEMBLY VALVE 46 ACTUATOR 46 SPRING 4C ACTUATOR 4C SPRING SPRING STEM VALVE
TYPE ACTION SIZE PART # PART# PART # PART# QUANTITY PART # TRAVEL (in)
SI NO 2-1/2 672-672D 672- 642 672-466D 672-646 6 672-636B 5/8
NO 3 672-672D 672 -642 672-466D 672-646 6 672-636B 3/4
NO 4 672-672D 672 -642 672-466D 672-646 4 672-636B 1
NC 2-1/2 672-024R 672 -642 672-465R 672-646 6 672-636C 5/8
NC 3 672-024R 672 -642 672-465R 672-646 6 673-636C 3/4
NC 4 672-024R 672 -642 672-465R 672-646 6 673-636D 1
*4X Actuators add 6 Springs #672-645.
TABLE 1
VALVE ASSEMBLY VALVE 46 ACTUATOR 46 SPRING 4C ACTUATOR 4C SPRING SPRING STEM VALVE
TYPE ACTION SIZE PART # PART# PART # PART# QUANTITY PART # TRAVEL (in)
VE NO 1/2A 672-022D 672-642 672-648D 672-646 6 672-636 1/4
NO 1/2B 672-022D 672-642 672-648D 672-646 6 672-636 1/4
NO 1/2C 672-022D 672-642 672-648D 672-646 6 672-636 1/4
NO 1/2D 672-022D 672-642 672-648D 672-646 6 672-636 1/4
NC 1/2A 672-024R 672-642 672-648R 672-646 6 672-636A 1/4
NC 1/2B 672-024R 672-642 672-648R 672-646 6 672-636A 1/4
NC 1/2C 672-024R 672-642 672-648R 672-646 6 672-636A 1/4
NC 1/2D 672-024R 672-642 672-648R 672-646 6 672-636A 1/4
*4X Actuators add 6 Springs #672-645.