B411DN – Double acting Actuator 400 series

Actuators-B type -Gemini’s 400 Series Pneumatic Actuators were the first in the ball valve industry to offer direct actuator to valve mounting. This patented design eliminated the need for bulky bracketry which lacked
precise alignment and rigidity required for long trouble fee service life

Designed to operate on 50 – 125 psi for double-acting models and 75 – 125 psi for spring-return models. Index (or Cycle) time is approximately 1/2 to 1 second depending on model.

The 400 Series Pneumatic Actuators are suitable for Gemini’s 76, 86 & 96 Series Barstock Ball Valves which are now part of our General Industrial Series. The later introduction of the General Industrial Series Pneumatic Actuators (500 Model) provided a cost savings over the 400 Series by manufacturing the body from a standard shape extrusion and providing a simplified visual position indicator. The 400 Series Pneumatic Actuators today continue to have a following of loyal customers based upon it’s history of performance and customer satisfaction.

Temperature
Pneumatic Actuators are designed tooperate in ambient temperatures between -20° F (-28.0°C) and +350°F (+175°C). Care must be taken to assure that the moisture content of the air supply is sufficiently low to
prevent icing within the actuator.

Air Supply

Sufficient air delivery must be available at the actuator to ensure dependable operation. The following precautions should be observed: Air supply should be clean and dry.
When dirty or wet air is a problem; a filter / separator should be specified;  these units are most effective when installed as closely as possible to the actuator. A filter, when used, should permit a minimum flow of 4 scfm at an upstream pressure of 60 psi. Eliminate severe restrictions to air  flow (certain solenoid valves & fittings). The most restricted passage must have an area no smaller than .003” square, the area of 1/16” diameter orifice. If more than a single actuator is to be supplied by an individual pilot, the minimum passage requirement applies per actuator. Tubing: For short runs up to 5 feet 5/32” I.D. is suitable, 1/4” I.D. will serve up to 30 feet. For longer runs, use 3/8” I.D. or larger.

Accessories

Solenoid pilot valves and limit switches are available. Please see our literature or contact us direct.

• Port Connections: 1/8” N.P.T.
• Materials of Construction
• BODY, END CAPS: : Aluminium with Teflon® Impregnated Hard Anodized (PolyLube®) Sufaces
• SPRING MODULES: Aluminium with Teflon® Impregnated Hard Anodized (PolyLube®) Sufaces
• SHAFT / DRIVER & EXTERNAL TRIM: 300 Series Stainless Steel

Mounting kits: