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PRODUCT DETAIL

Stainless Steel Cylinder

All stainless steel cylinders are made of stainless steel.It has high precision stainless steel, high corrosion resistance characteristics.Suitable for high ph environment.

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Pneumatic Valve.jpgPneumatic Valve.jpg

 

 

PRODUCT FEATURES:

 

1 STAINLESS STEEL BODY The all-SS housing is ideal for sanitary, pulp and paper, marine and a variety of other applications where corrosion-resistance is crucial. 
2 HEAVY-DUTY PINION  The one-piece stainless steel alloy shaft has precision machined gear teeth for precise operations.
3 BEARINGS  Replaceable top and bottom PTFE pinion bearings ensure low friction, stability up to 400°F and corrosion resistance. 
4 TRAVEL STOPS  Travel adjustment of +/- 4° is available on all models. 
5 ACCESSORY MOUNTING  NAMUR and ISO mounting allows for the easy factory or field installation of solenoids, switches and positioners. 
6 STAINLESS STEEL PISTONS  Durable, precision cast pistons provide full engagement with the pinion. Quality seals and guides provide high thrust stability with minimal friction. 
7 NAMUR SHAFT The slotted shaft, along with the NAMUR bolt pattern, allows for direct mounting of NAMUR standard switches and positioners. 
8 ACTUATOR MOUNTING  ISO 5211 standard design provides direct mounting of most ISO pad valves, including FLOWX® valves. 
9 SPRING CARTRIDGES  The heavy duty spring cartridges are designed for easy conversion of a double acting actuator to a spring return actuator, or to modify the torque output depending on air pressure. 
10 SOLENOID MOUNTING  The PN-SS series actuator is designed for direct mounting of NAMUR solenoid valves without additional piping. 

 

 

Pneumatic Valve.jpgPneumatic Valve.jpg

 

 

DOUBLE ACTING ACTUATOR OVERVIEW:

 

•All listed output torques are expressed in inch pounds of torque (in. lbs.).

•Charts for available air pressure are expressed in pounds per square inch (P.S.I.).

•FLOWX® actuators offer ±4° adjustment in the open and closed positions on all models.

 

 

DOUBLE ACTING ACTUATOR SIZING:

 

1. Establish the valve manufacturer’s breakaway or seating/unseating torque, then add 20% as a safety factor (e.g. 115 in. lbs. valve breakaway torque x 20% = 138 in. lbs.).

2. Determine available air pressure to the actuator (e.g. 60 P.S.I.).

3. Refer to the chart, find the 60 P.S.I. column and scan down until a torque value greater than the valve torque is found (e.g. 141 in. lbs.). Then go to the left to determine the FLOWX® model number. In this sample case, the selected actuator would be the FLOWX-45DA. NOTE: The FLOWX® double acting actuator has no torque drop through the full 90º stroke.

 

SPRING RETURN ACTUATOR:

1. Air Stroke: When air is supplied to the actuator, the pistons compress the springs. The greater the spring compression, the less torque output the actuator can supply.
2. Spring stroke: When air is removed from the actuator, the stored energy in the springs forces the piston inward. At full compression, the spring is at its maximum torque output. This is the SPRING START. When springs are uncompressed, this is the SPRING END.
3. Fail Position: Standard FLOWX® actuators are preset for fail closed (CW) operation, but can be adjusted easily for fail open (CCW) rotation.


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