3500B Series Vacuum Relief Valves

Main Features

Designed to offer flexibility of installation.
3500B valves for tank top mounting.
3600B valves are side mounted.
Oversized port for maximum flow.Replaceable ‘air cushion’ PTFE seating for lowest available leakage for weight-loaded valves (1 SCFH [0.03 Nm3/hr] or less at 90% of setpoint).
Pallet drip ring and self-draining housing protect the seating surface from condensate and freezing.
Side-and-center guided pallet.
Wide range of materials for service in most applications.
‘All-weather’ non-frosting and ice-resistant coating option available for valve seats and guides.
Extended service options available for high temperature and chemical applications.

Specifications

Valve Size: NPS 2 to NPS 12
Pressure Rating: ANSI 150, PN16
Process connection type: flanged
Material: aluminum, carbon steel, stainless steel
Other configurations: Contact us for more information on specifications or options for this product

Applications

These vacuum breakers are designed to protect atmospheric and low pressure liquid storage vessels, vapor recovery and process systems from excessive vacuum. They utilize weights proportional to the seat surface area to achieve the desired setting.

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