Brochure

41005 Series Heavy Duty Control Valves | 7
Numbering System
General Information
Flow Direction
Standard Trim: flow-to-open or flow-to-close
Lo-dB Trim: flow-to-open
Lo-dB Trim w/ Diffuser: flow-to-close
Anti-Cavitation Trim: flow-to-close
Body
Type: high capacity globe or angle
Body and Bonnet
Materials: carbon steel
316 stainless steel
chrome-molybdenum steel
others
Trim
Cage Type: cylindrical ported
drilled hole (Lo-dB or Anti-cav)
single or multi-stage
Plug Type: pressure balanced
Seal Rings: teflon, metal or graphite
Seat Ring: quick change
Guide: heavy cage guiding
Capacity: full area or reduced
Cv Ratio: 50:1
Flow Characteristics: linear or equal %
Actuation
Type: multi-spring diaphragm
spring diaphragm
spring-return cylinder
double-acting cylinder
handwheel (optional)
1st 2nd
Actuator Type
37 Spring Diaphragm
Air to Close
38 Spring Diaphragm
Air to Open
87 Spring Diaphragm
Air to Close
88 Spring Diaphragm
Air to Open
XX Cylinder *
5th
5
4th
0
3rd
0
2nd
1
1st
4
6th
Body Series
41 Cage Guided,
Balanced Globe
Options
A Angle
Body
EB Extension
Bonnet
C Cryogenic
* Consult factory for cylinder actuator type.
Trim Type /
Characteristic
0. Undefined
1. Standard
Cage/Linear
2. Standard
Cage/Equal %
3. Lo-dB/Anti-
Cav/Single
Stage/Linear
4. Lo-dB/Anti-
Cav/Single
Stage with
Diffuser/Linear
5. Lo-dB Multi-
Stage/Linear
Seal Type
0. Undefined
3. Pressure
Energized
PTFE Seal
Ring
4. Auxiliary
Shutoff Plug
(Pilot)
5. Metal Seal
Ring
6. PTFE Seal
Ring
9. Graphite
Seal Ring
Please consult factory
on engineered trim
options for high
temperature and
high pressure drop
applications.
6. VRT (stack)
Type S/Linear
7. VRT (partial
stack) Type
S / Modified
8. VRT (cage)
Type C/Linear
Design Series
5
9. Anti-Cav Multi
Stage/Linear