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ESOV Series Swing Check Emergency Shut-Off Valves

Spring Assisted Swing Check with Fusible Link; 150# and 300# ANSI Flanged Connections 2" to 16"
ESOV Series High Pressure, Compact On Off Valve

 

Description

Assured Automation’s ESOV series ANSI flanged swing-check valves with fusible links are designed to provide a simple yet effective method of closing in an emergency or hazardous situation.
The valves are designed with an external spring load and held in the open position with the fire-sensitive fusible link. The valve will automatically close when the link melts due to fire or high temperatures. The external lever rotates the hinge pin which directs the disc into the flow of the liquid, gas or vapor.

 

Operation

Swing Check ESOV Operation
The disc is on a swing arm and is held open by the lever and fusible link. When the link fusible metal on the link melts, the spring pulls the lever causing the disc to swing down and close on the seat.
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Features & Benefits

  • Local and/or remote actuation
  • Fire-Safe fusible link
  • Economical solution for required safety
  • Can be used in horizontal and vertical service
  • All valves are factory tested to API 598
  • Back pressure ensures a tight seal between the disc and seat
  • Once closed, the valve can ONLY be reset manually as a safety feature

Specifications

Materials
  • Body - Carbon steel or Stainless Steel
  • Disc and Hanger Arm - Carbon Steel
  • Seat - API 598 Trim 8 or 10
  • Cover Seal - Graphite
End Connections Temperature Range:
  • -20°F to 450°F
Maximum Pressure:
  • 150#: 275 psig
  • 300#: 740 psig

Cross Section / Materials of Contruction

cross section of ESOV high pressure coaxial valve

Typical Applications

  • Refineries
  • Petrochemical
  • Off-shore oil rigs
  • Chemical process equipment
  • Water and Waste applications
  • Superheated steam lines on ships

Remote Triggers

Pneumatic Cylinder

Electro-Magnet


Interactive Demo

buy an ESOV Series Emergency Shut-Off Valve

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Please contact us to verify any information that is critical to your application..