The Parker AVR4 Series is a CSA, CE-ATEX certified, steam-heated pressure regulator that is designed to heat and/or vaporize a gas or liquid sample before entering a downstream analyzer system. Its unique design allows the operator to disassemble the regulator and electrical heat transfer components for complete cleaning and repair of the unit, thus reducing replacement costs and minimizing downtime. The regulator is highly compact, making it ideal for use in scenarios where space is limited, such as heated boxes and enclosures.
The AVR4’s body is available in 316L Stainless Steel, Monel® or Hastelloy C-22®, affording the regulator with extreme resistance to corrosion, electropolishing, and welding. Seats are available in PCTFE, PEEK™ or Vespel®, which allows for compatibility with a wide range of both inert and corrosive process fluids. These materials, combined with a convoluted Hastelloy C-22® diaphragm and Inconel® poppet, provide the AVR4 Series with maximum cycle at inlet pressures up to 3,500 psig and exceptional outlet pressure stability with changes in flow.
The AVR4 Series features an internally springless and threadless design, which reduces particle entrapment and minimizes the risk of downstream process contamination. All AVR4 Series electrically heated pressure regulators are cleaned for O2 service to ensure performance and reliability in high-purity applications where cleanliness is critical.
For a steam heated version of this pressure regulator, refer to the AVR3 Series.
Markets:
• Analytical Laboratory
• Pharmaceutical
• BioPharm
• Aerospace
• Industrial
Features and Benefits:
• Electrically heated transfer element is field-replaceable
• Unique compression member loads seal to body without requiring a threaded nozzle
• Available with a variety of seat materials for media compatibility
• Internally springless minimizes particle generation and gas entrapment
• Fully functional from vacuum to 3,500 psig
• Internal leak rate: bubble tight
• External leak rate: bubble tight
• Low internal volume (4.6 cc) reduces purge times
• Integral diaphragm stop provides additional measure of safety
• Operating temperatures up to 500°F (260°C)
• Ambient temperature range -4°F to +104°F (-20C to +40°C)
• Power requirements: 120V or 240V, 50/60 Hz
• Heater wattage: 150 or 200 watt
Applications:
• Corrosive and specialty gases
• Gas sample preparation
• Gas cabinets
• Valve manifold boxes (VMB)
• Upstream process lines
Hastelloy C-22® is a registered trademark of Haynes International, Inc.
PEEK™ is a trademark of Victrex plc.
Inconel® and Monel® are registered trademarks of Special Metals Corporation.
Vespel® is a registered trademark of DuPont Performance Elastomers L.L.C.
