PressureMatic Pilot Valves
The Bettis® PressureMatic line of pressure sensory devices are used to monitor pipeline or process pressure. They are suitable for use in high and low pressure shut down applications utilizing either a pneumatic or hydraulic signal. Set points are determined by piston size, spring rate and adjustments to the trip mechanism.
Typical Applications
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Key Features
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Field adjustable high and low pressure set points
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Manual or automatic reset on pilot valve
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Extended sensing pressure capability through interchangeable range springs
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Positive piston stop; limits piston travel against overpressure
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Secondary piston seal with safety vent
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Input connection 1 1 Ú2 or 2 NPT threaded or flanged
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Hex body for practical field installation
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Maximum working pressures to 6000 psig
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Temperature limits: Process –50°F to +392°F (–46°C to +200°C). Ambient –50°F to +212°F (–46°C to +100°C)
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High set points (increasing) to 6000 psi. Low set points (decreasing) to 10 psi
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Aluminum housing with sealed cover
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Stainless steel or Impreglon™ coated carbon steel body
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Electroless nickel plated process piston with TFE seal; no diaphragm to rupture
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No brass or bronze components
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Special trim options, coatings and bellows piston for corrosive applications
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Nitrile seals standard, high temperature fluoroelastomer seals optional for higher temperatures
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Repeatability is ± 2% of set point (or ± 5 psi if greater) |
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