Silicone Couplers and Silicone Rubber Tubing - CMT Inc.

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Silicone Flex Fittings

Silicone Couplers and Silicone Rubber Tubing

Soft Flexible Silicone Rubber Tubing for Process Weighing Applications

Silicone Flex Fitting on Loss-in-Weight Feeder
Food-Grade Silicone Coupler on Feeder
Silicone rubber contains many highly desirable qualities for manufacturing processes, including its flexibility, biocompatibility, and resistance to temperatures, UV light, radiation, and ozone. Silicone's unique properties make it particularly useful in the chemical, pharmaceutical, aerospace, and biomedical industries. Silicone rubber is one of the most commonly used synthetic rubbers on the market. It is composed of silicone bonded with hydrogen, carbon, and oxygen to create cross-linked polymers reinforced with silica, creating a unique synthetic elastomer that offers mechanical and chemical characteristics for the most rigorous applications.

We offer two different styles of silicone flex fittings: straight sleeves and doughnut couplers.
Silicone Flex Fitting Features
Silicone Flex Fitting Features

Features and Advantages

Silicone Benefits and Advantages

  • High Temperature Resistance Compared to Other Common Rubbers
  • Excellent Thermal Stability
  • Can withstand long-term, continuous use even at 200°C (392°F)
  • Repels Water and Forms Tight Seals
  • Excellent Electrical insulation
  • Carbon Black Additives Increase Electrical Conductivity
  • Flexible at Low Temperatures, Stiffens up at Higher temperatures
  • Contact with Steam Causes Little or No Deterioration
  • Red Silicone Flame Retardant (Only Available in Straight Sleeve)
  • Low Chemical Reactivity
  • Temperature Resistance:  -76 °F to 392 °F  (-60 °C to 200°C)
  • Maximum Surge Temperature:  428 °F  (220 °C)
  • Elongation to failure:  240%
  • Color: Translucent White
Silicone Coupler Flex Connector
Bulk Bag Unloader with Silicone Coupler on a Particle Crusher

Standard Silicone Couplers

flex fitting and flex connector chart

Black Anti-Static Silicone Couplers

flex fitting and flex connector chart

Silicone Applications

  • Industrial and Process Equipment
  • Weighing Applications
  • Screw Feeders and Vibratory Feeders with Load Cells
  • Sound and Vibration Dampening Equipment
  • Belts and Weigh Belt Feeders
  • Hoppers on Load Cells
Silicone Rubber Tubing on Loss-in-Weight Feeder

Chemical Resistance of Silicone

Silicone Couplers Have High Resistance to:
  • Ozone
  • Aging
  • Air
  • Gas
  • Most Fluids
  • Oxidadation
  • Ultraviolet Light (UV)
  • Corona Discharge
  • Cosmic Radiation
  • Ionising Radiation and Weathering in General

Silicone Couplers Have Average Resistance to:
  • Lie

Silicone Couplers Have Low Resistance to:
  • Oil, Oily Products, Coffee Oil
  • Gasoline
  • Acids

Dimensions of Silicone Coupler

Silicone Rubber Tubing Dimensions
Standard Silicone Coupler
Asymmerical Silicone Rubber Tubing Dimensions
Asymmetrical Silicone Coupler

Available Options

Available Shapes

Straight Sleeves
Straight Sleeve Flex Connector
Our Straight Sleeve Flex Fittings are suitable for applications involving identical top and bottom diameters.

Applications Include: Sifters, Screeners, Hoppers, Feeders, Bin Dischargers, Conveyors, and Packing and Filling Equipment.
Doughnut Couplers
Bellowed Flex Connector
Our Doughnut Coupler Flex Fittings are Suitable for Weighing Applications that Involve Equipment on Load-Cells.

Applications include: Loss-in-Weight Feeders and Batching/Dosing Equipment.

Available Fittings

Worm Clamps
flex connector hose clamp for flex fittings
Our Quick Release Worm Clamps offer a tilting worm drive housing. These quick release worm clamps are ideal for rapid application and removal during process equipment cleaning and maintenance.
Tri-Clamp Assembly
flex connector tri-clamp assembly for flex fittings
Stainless Steel Tri-Clamp Fittings are commonly used for connecting Process Line Equipment in the Food, Beverage, and Pharmaceutical Industries. These Fittings Quickly Create a Leak-Proof Connection to Allow for Easy Assembly, Routine Maintenance and Inspection.
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220 Crompton St
Charlotte, NC 28273
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