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Anderson Greenwood, Biffi, Crosby, FCT, Keystone, KTM, Vanessa products
We are pleased to announce that from 1st of April 2018 Custom Controls will represent all Emerson isolation valve, pressure relief valve and actuation products. This adds to our existing Emerson control valve, actuator, regulator and instrumentation portfolio, creating an unrivalled range of measurement and control solutions for our New Zealand customers. More

Rosemount, Micro Motion, Daniel and Roxar products
We are pleased to announce that from 1st January 2017 Custom Controls become the New Zealand Sales Channel for Rosemount, Micro Motion, Daniel and Roxar products adding to its current Emerson portfolio and creating an unrivalled range of products and solutions for our New Zealand customers. More

Fisher® Level Loop Solutions
New liquid level controller, FISHER L2e Electric Level Controller. More


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Emerson Releases Fisher CS800 Regulators

December 12th 2010

In addition to application flexibility, the CS800 Series offers multiple overpressure protection options to meet your demands on application requirements.

Fisher CS800 Regulator

Overpressure Protection Options Available:

  • Standard Internal Relief – Relieves gas across the main diaphragm assembly to minimize downstream pressure buildup.
  • High-Capacity Internal Relief – Relieves gas across the main diaphragm assembly through a larger 2-1/2 NPT vent size to provide lesser resistance to venting gas, therefore minimizing downstream pressure build-up.
  • Token Relief – Provides a small capacity or token relief that relieves minor overpressure caused by thermal expansion or minor nicks in the orifice or disk.
  • Secondary Seat™ Protection – Provides lockup via a secondary seating and disk surface in the event that damage to the primary disk or orifice seating surface, or debris in the flow path, inhibit primary lockup. Secondary Seat protection does not provide additional overpressure protection in the event the secondary seat or disk is damaged by debris or contamination in the pipeline or from conditions that would cause the regulator to go wide open.

Related Documents


Fisher_CS800_Pressure_Regulator_Bulletin_December_2010.pdf


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