The TAC-Invensys MK-2690 pneumatic valve actuator if for proportional pneumatic control of 1/2" to 1-1/4" VB-111 and VB-9xxx series valves. The TAC-Invensys MK-2690 features a compact size with 6 in.2(39 cm2) effective area, a rugged die cast aluminum housing, and a replaceable beaded molded neoprene diaphragm.
Product Specifications
| Actuator Inputs Compatible With |
Proportional pneumatic signal. |
| Start Point |
Non-adjustable. |
| Air Connections |
1/8" FNPT located on side of housing. |
| Actuator Outputs (Mechanical) |
Stroke, 1/2" (12.6 mm) nominal. |
| Ambient Temperature Limits |
Shipping, -40 to 220° F (-40 to 104°
C).
Operating, -20 to 220° F (-29 to 104° C). |
| Humidity |
5 to 95% RH, non-condensing. |
| Location |
NEMA Type 1 indoor only. |
| Maximum Air Pressure |
30 psig (207 kPa). |
| Spring |
Retracts actuator shaft and raises
valve stem on loss of air pressure. Springs provided in AV-400 linkage (order
separately). |
| Spring Ranges |
|
| Nominal
Spring Range* |
*Nominal (no load) condition, spring
ranges based on 1/2" (13 mm) maximum stroke, provided by AV-400 linkage (order
separarely). |
|
psig (Spring Color Code) |
3 to 7 (Yellow)
5 to 10 (Black)
8 to 13 (Blue) |
|
kPa |
21 to 48
34 to 69
55 to 90 |