PressureMatic Pilot Valves 

Introduction

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

• High and low pipeline pressure sensing
   
• Linebreak

Key Features

• Field adjustable high and low pressure set points
   
• Manual or automatic reset on pilot valve
   
• Extended sensing pressure capability through interchangeable range springs
   
• Positive piston stop; limits piston travel against overpressure
   
• Secondary piston seal with safety vent
   
• Input connection 1 1 Ú2 or 2 NPT threaded or flanged
   
• Hex body for practical field installation
   
• Maximum working pressures to 6000 psig
   
• Temperature limits: Process –50°F to +392°F (–46°C to +200°C). Ambient –50°F to +212°F (–46°C to +100°C)

• High set points (increasing) to 6000 psi. Low set points (decreasing) to 10 psi
   
• Aluminum housing with sealed cover
   
• Stainless steel or Impreglon™ coated carbon steel body
   
• Electroless nickel plated process piston with TFE seal; no diaphragm to rupture
   
• No brass or bronze components
   
• Special trim options, coatings and bellows piston for corrosive applications
   
• Nitrile seals standard, high temperature fluoroelastomer seals optional for higher temperatures
   
• Repeatability is ± 2% of set point (or ± 5 psi if greater)

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