Pressures to 150000 psi (10342 bar)
Diaphragm type air-operated valves are an efficient and economical means for “remote on-off” control of a wide range of process requirements. Diaphragm type actuators are designed to provide a dependable alternative to piston type actuators.

Autoclave Engineer’s diaphragm type air actuators feature:

• Economical diaphragm design.
• Air-to-open or -close with spring return.
• Integral connection of valve and operator for height resticted applications.
• Oversized weep holes for separation of process and air operator pressures.
• Stem position indicator optional.
• Medium actuator cycle life.

Air Operator Materials
Upper and lower housing, spring housing

• Anodized aluminum.

Diaphragm plate

• Cast ductile iron.

Technical Data
Air Operator

• Maximum allowable working pressure: 100 psi (6.89 bar)


• Allowable diaphragm temperature range: -40°F to 200°F (-40°C to 93°C)


• Area of diaphragm:

Light duty - 4.9 sq. in (31.6 sq. cm)
Medium duty - 19.6 sq. in (126.5 sq. cm)
Heavy duty - 45.66 sq. in (294.58 sq. cm)

• Approximate air usage/cycle @ 100 psi (6.89 bar):

Light duty - .007 SCF (.00019 SCM)
Medium duty - .07 SCF (.0019 SCM)
Heavy duty - .2 SCF (.0056 SCM)

Note: Isn't available for SW Valve Series size 1/4".