Emerson Hytork XL Series - Actuator to Valve Installation; Bi-directional Travel Stops Adjustment

March 2024
Safety Guide
DOC.SG.HX.1 Rev. 2
6
3. Refer to Table 1 on applications where the spring stroke of
spring-return actuators is pneumatically operated.
Table 1. Maximum Pressure on Spring Stroke of
Spring-Return Actuators
Spring Set
Maximum Pressure on Spring Stroke
of Spring-Return Actuators
S20 6.9 barg / 100 psig
S30 6.2 barg / 90 psig
S40 5.5 barg / 80 psig
S50 4.8 barg / 70 psig
S60 4.1 barg / 60 psig
S70 3.4 barg / 50 psig
S80 2.8 barg / 40 psig
S90 2.1 barg / 30 psig
S1C 1.4 barg / 20 psig
4. Dew point should be at least 10 K below
ambient temperature.
5. For subzero applications take appropriate measures.
6. Mentioned pressure levels are “gauge pressures”.
Gauge pressure is equal to absolute pressure minus
atmospheric pressure.
3.2.2 Operating Temperature Range
1. Using standard seals and grease the operating temperature
range is -20 to +80 °C / -4 to +176 °F as indicated on the
product label.
2. Other media and temperatures may be used but consult
your local Emerson sales oce for conrmation as
to suitability.
Section 3: Hytork XL-Series Actuators
Hytork XL-Series Actuators