简体中文
ENGLISH
Fisher 4660 Pneumatic High-Low Pressure Pilot
The Fisher 4660 pneumatic high-low pressure pilot activates safety shutdown systems for flowlines, production vessels, and compressors. This pilot is available with either single or dual set point capability, using switch points to maintain full output pressure when the process pressure is within the set point range. If the process pressure is outside this range, the pilot switches from full output pressure to zero output pressure. The primary switching mechanism in this pilot is a block-and-bleed relay assembly. This construction can be used in both block-and-bleed and bleed-only systems.
Features
1.Simple modular construction, plus a line of pre-packaged parts kits, makes pilot maintenance fast and easy.
2.Construction materials have been selected to protect the pilot from corrosive environments.
3.The rugged Bourdon tube sensing element and shock-absorbing switch points dampen the effects of vibration.
4.One pilot provides either a high-low function or a single switch point, whichever the application requires.
Specifications
Mounting TypeRemote
Mount, Actuator Mount
Operating Temperature
Standard Temperature
Position Control
On/Off
Process Control
Pressure
Safety Certification
SIL 3 capable
Supply Media
Air, Natural Gas
Other Configurations
Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product.
Pictures show
Application area
矿业
医药
水处理
能源
化工
矿业
医药
水处理
能源
化工
