Flowserve Valtek Beta Positioners for Control Valves - Manual (Page 14)

24-14 Flowserve Corporation, Valtek Control Products, Tel. USA 801 489 8611
Table III: Linear Actuator Follower Arms
Actuator Stroke Spud Follower
Size (inch) (inch) Arm Kit
25 1 /
4
2.00 10043879 * (3)
25 3 /
8
2.00 10043879 * (3)
25 1 /
2
2.00 10037613
25 3 /
4
- 1 1 /
2
2.00 10037613
50 1 /
4
2.00 10053538 (3)
50 3 /
4
- 1 1 /
2
2.00 10037613
50 3 /
4
- 1 1 /
2
2.62 10044111
50 3 2.62 10037614
100 / 200 3 /
4
- 3 2.62 - 2.88 10037614
100 / 200 3 /
4
- 4 3.38 - 4.75 10037615
100 / 200 5 - 8 3.38 - 4.75 10037616
* Requires the use of stem clamp number 10043664
(3) Use short-stroke positioners with: 25 sq. in. actuator,
1 / 4 , 3 / 8 with
stroke; 50 sq. in. actuator, 1 / 4 -inch stroke.
Ordering Information
The following information is provided to order a new Beta
positioner or to adapt an existing positioner from one
application to another.
Linear Actuators
When ordering a positioner for a linear actuator, select
two part numbers; one each from Tables 2 and 3.
Table II: Positioner Model with 3-15 psi
or 4-20 mA span for Linear Actuators (1)
Air P/P NT 3000
Action Module I/P Module
Air-to-Open (2) 10005334 10121770
Air-to-Close 10005338 10121771
Air-to-Open (2) 10005376 10121773
Air-to-Close 10005377 10121750
(1) Can be split ranged 2:1 or 3:1 without additional parts. Also
available are positioner models with 6-30 psi or 10-50 mA
span and the same split ranges.
(2) The cam can be turned over in the field for opposite air action.
Stroke
Stand.
Short
Rotary Actuators
When ordering a positioner for a rotary actuator, select
two part numbers; one from Table IV and one from Table
V which includes part numbers for the follower arm.
Table IV: Positioner Model with 3-15 psi
or 4-20 mA span for Rotary Actuators (1)
Valve Installed P/P NT 3000
Type Cam (4) Module I/P Module (5)
Valdisk or Shear Stream
B (4) 10005708 10121775
C (4) 10005709 10121776
MaxFlo
Air-to-Open B (eq. per.) 10050189 10121783
Air-to-Close B (eq. per.) 10099969 10123232
Air-to-Open C (Linear) 10050192 10123230
Air-to-Close C (Linear) 10099974 10123833
(1) Can be split ranged 2:1 or 3:1 without additional parts. Also
available are positioner models with 6-30 psi or 10-50 mA span
and the same split ranges.
(4) The cam can be turned over in the field to the opposite side “B”
or “C”. To select the correct positioner model choose either “B”
or “C” from the “Cam Characteristic” chart in Table I.
(5) FM/CSA Explosion Proof and Intrinsically Safe rating.
Actuator Size Follower Arm
(Square-inches) Part Number
25 10034715
50 10034714
100 / 200 10033767
When installed on a rotary valve, the signal vs. C
V
rela-
tionship can be equal percentage or linear, based on air
action as well as cam characteristics. See Table 1.
Several kits are available to convert the Beta positioner
control signal from either pneumatic to I/P, or from I/P to
pneumatic.
Table VI: Conversion Kits (1)
Module Number
I/P to Pneumatic 10033937
Pneumatic to I/P
(FM/CSA Exp. Proof. I.S.) 10121462
(Cenelec I.S. w/M20 connection) 10124651
(Cenelec I.S. w/1/2" NPT connection) 10124602
(Cenelec Exp. Proof w/M20 connection) 10125444
(Cenelec Exp. Proof w/1/2" NPT connection) 10128543
(1) Conversion kits include I/P or pneumatic module, two screws
(item 67 or 73), two O-rings (item 69), and a standard gauge
(item 6). See Figure 17 for reference to item numbers.
Table V: Follower Arms - Rotary Actuators