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DESCRIPTION
The CT (Control, Throttling) Series Flex Tube® has been an industry standard for over five decades in fluid level control. Its simplicity, reliability, ease of maintenance, and rugged construction have made it popular where downtime for repairs could be critical to processes or where minimum maintenance is desirable. (For Flex tube Principle, see page 2. of PDF file)
The general purpose pilot enclosure is suitable for many exposed applications. All exhaust gas is vented inside the enclosure and then to the atmosphere through a screened vent connection.
The pilot cover plate is gasketed and the pressure gauges are of corrosion-resistant materials.
The weather proof pilot enclosure has been developed to provide a weather-tight pilot enclosure to completely protect the control from the elements and even hose cleaning operations. In addition, it allows hazardous exhaust gases to be vented through piping to a safe release area.
An optional Acrylic or Pyrex Sight Glass can be included in Hammer Union models to aid in calibration and operational verification.
Specifications
| Operating Mode | Pneumatic Throttling Direct or Reverse (reverse action obtained by rotating control head 180°). |
| Process Connection | Steel; MNPT, grooved, ANSI flange, ACME thread hammer union. |
| Working Pressure | 0 to 1500 psi |
| Temperature Limits | 250°F (with solid PVC displacers), 175°F (on sight glass models and acrylic displacers) high temperature aluminum displacers and Pyrex sight glasses are available. Consult factory. |
| Enclosures | General Purpose: Die cast aluminum, gasketed cover, screened vent. Weatherproof: molded fiberglass polyester, GE Lexan Margard® Window, quick release latches, knockout seal provision. |
| Supply Pressure | 20 to 30 psi |
| Supply Connection | 1/4” FNPT |
| Output Connection | 1/4” FNPT |
| Gas Consumption | 35 SCFH average at full bleed Assuming 1 snap per minute. |
| Flexture Tube | 304 S.S. |
| Displacers | (See Displacer section in PDF) |
ADDITIONAL INFORMATION
Note:
1. Polycarbonate sight glasses are limited to 175°F. For higher temperatures pyrex glasses are available (consult the factory). Pyrex glasses are also recommended for service involving H2S, aromatics such as benzene and toluene, and for service involving undersaturates. Esters, halogenated hydrocarbons, ketone are not compatible. Further chemical resistance information is available from the factory.
2. *Dimensions are worst case and vary slightly from size to size.
Note: Dimensions – Inches to the nearest tenth (millimeters to the nearest whole mm), each independently dimensioned from respective engineering drawings.
| Typical Envelope Dimensions for both General Purpose and Weatherproof Flextube options |
| Parts |
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