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42146 HWY 290 Business
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Linear Diaphragm Operators Models 501-4
501-6
501-12
501-18
501-25
   
     
  MODEL 501-12 LINEAR DIAPHRAGM OPERATOR

GARZO Linear Diaphragm Operators are small diameter spring opposed rolling diaphragm operators suitable for gas compressor applications. The series 501 operators are designed specifically to be used in various industrial applications. The rolling diaphragm creates the perfect seal for friction free cylinders. It is a durable, flexible membrane shaped like a top hat with the peak of the hat resting against the end of the piston and the brim clamped between the forward and rear cylinders. Inside the cylinder this forms a long-lasting frictionless sealed cushion of air between the piston head and the cylinder wall. The fabric reinforced elastomer rolling diaphragms are produced exclusively for GARZO to our exacting standards. Standard diaphragm material design allows for operation of the cylinders in temperatures from -31°F to 248°F. Custom diaphragm material design allows for operation of the cylinders in temperatures from -121°F to 500°F.
501-12 LDO

The operators are designed to withstand many corrosive elements. The piston and body of the operators are made from 100% aluminum castings which resist galvanic corrosion and eliminate the need for painting. The diaphragm is a Dacron fabric, Buna-n impregnated, molded rolling diaphragm. The diaphragms are designed and manufactured to withstand repeated use in industrial applications, and the fabric prevents the elastomer from stretching in over pressure conditions. The spring has been electro zinc plated. The piston rod is a large diameter 300 series stainless steel. All other parts are either plated or stainless steel, making the operator suitable for offshore salt water, natural gas, and sour gas service.

GARZO linear diaphragm operators are designed using INSTRUMENT SOCIETY of AMERICA recognized spring rates. The GARZO operators have strokes that follow a true linear progression. A properly sized GARZO spring opposed diaphragm operator has as much force on the forward stroke as it does on the return stroke.

FEATURES
  • Super Sensitivity
  • Absolutely No Lubrication Required
  • Low Hysteresis
  • No Blow-By Leakage - 100% Leak Testing
  • Solid Aluminum Construction
  • Ease of Maintenance
  • Wide Temperature Variations
  • Designed For Use With Air or Sour Gas
SPECIFICATIONS
  • Cylinders 100% Cast Aluminum
  • Piston 100% Cast Aluminum
  • Rod 303 Stainless Steel
  • Diaphragm Buna-N with Dacron Fabric
  • Spring Zink Plated

501-2

501-2

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