Catalogs >
FISHER REGULATORS >
www.Fisher.comFisher™ 2100 Pneumatic and 2100E ElectricLiquid Level Switches

www.Fisher.comFisher™ 2100 Pneumatic and 2100E ElectricLiquid Level Switches
8Pages

Catalog excerpts

www.Fisher.comFisher™ 2100 Pneumatic and 2100E ElectricLiquid Level Switches - 1

Product Bulletin 32.2:2100 August 2017 Fisher™ 2100 Pneumatic and 2100E Electric Liquid Level Switches Fisher 2100 on-off pneumatic switch and 2100E electric switch sense (shown in figure 1) high or low liquid levels. Typically, these switches pneumatically or electrically operate safety shutdown systems for field processing equipment in oil and gas production applications. 2100 and 2100E switches both use a displacer‐style sensor located in an external cage that mounts on the outside of a vessel. Unless otherwise noted, all NACE references are to NACE MR0175-2002. Features n Proven Rugged Construction—The switch is isolated and sealed from the process through a corrosion‐resistant displacer and torque tube assembly for maximum reliability. The displacer can withstand up to 1‐1/2 times the maximum working pressure, allowing it to remain in the cage during hydrostatic testing. FISHER 2100 PNEUMATIC LIQUID LEVEL SWITCH n Sour Service Capability—Materials are available for applications handling sour fluids and gases. These constructions comply with the metallurgical requirements of NACE MR0175‐2002. Environmental restrictions may apply. n Application Versatility—The 2100 and 2100E switch construction comes in a left‐hand as well as a right‐hand mounting version. The explosion‐proof, hermetically sealed 2100E switch is offered as both a factory mounting and as an electric switch retrofit to the proven 2100 switch. n Installation Versatility—The displacer cage has two 1 NPT pipe plugs that you can remove and relocate for horizontal instead of vertical equalizing piping, or for installation of a bleed or drain valve. n Easy Reversibility—Switching action for both the 2100 and 2100E switches is field‐reversible from high‐level to low‐level

Open the catalog to page 1

www.Fisher.comFisher™ 2100 Pneumatic and 2100E ElectricLiquid Level Switches - 2

Product Bulletin Specifications Process Connection Size Input Signal Liquid level 153 bar (2220 psig) WOG(3): J 1 NPT internal J DN 50 (NPS 2) Schedule 80 buttwelding ends, or J DN 50 (NPS 2) Schedule 160 buttwelding ends Minimum Process Liquid Specific Gravity 0.5 (consult your Emerson sales office or Local Business Partner for specific gravities below this value) 2100 Switch Supply Pressure Connection Size 1/4 NPT internal Output Signal 2100: Equal to the supply pressure when the switch is in the normal position (flapper against nozzle) and reduced to approximately atmospheric pressure,...

Open the catalog to page 2

www.Fisher.comFisher™ 2100 Pneumatic and 2100E ElectricLiquid Level Switches - 3

Product Bulletin Specifications (continued) Construction Materials Cage: J SA216 Cast Steel (WCC), J SA216 Cast Steel (WCC) (NACE MR01752002) and J SA351 316 SST (CF8M) Displacer: J S30400 stainless steel (standard) J S31603 solution annealed stainless steel (NACE MR0175‐2002) Torque Rod & Tube Assembly: N05500 Bearing: Glass‐filled PTFE O‐Rings: Fluorocarbon Cover Gasket: 2100: Chloroprene 2100E: Silicone rubber Other Gaskets: Silicone rubber Nozzle Block Assembly (2100 only): Aluminum & stainless steel Nozzle (2100 only): Stainless steel Flapper & Clamp Assembly (2100 only): Stainless...

Open the catalog to page 3

www.Fisher.comFisher™ 2100 Pneumatic and 2100E ElectricLiquid Level Switches - 4

Product Bulletin Figure 2. Principle of Operation for High‐Level Fisher 2100 Switch SUPPLY DISPLACER TORQUE TUBE OPTIONAL BLEED ORIFICE NOZZLE FLAPPER SHUTDOWN VALVE (OR ALARM SYSTEM) OPTIONAL STREET TEE OUTPUT SIGNAL Figure 3. Construction Details of Low‐Level Fisher 2100 Switch TORQUE TUBE ASSEMBLY CAGE FLAPPER & CLAMP ASSEMBLY FLAPPER SEAT GASKET DISPLACER NOZZLE NOZZLE BLOCK ASSEMBLY

Open the catalog to page 4

www.Fisher.comFisher™ 2100 Pneumatic and 2100E ElectricLiquid Level Switches - 5

Product Bulletin Figure 4. Construction Details of Fisher 2100E Switch TORQUE TUBE ASSEMBLY ELECTRIC SWITCH ASSEMBLY GE59290 Figure 3 shows a sectional view of the 2100 switch positioned for low level activation. The nozzle, flapper, and magnet are on the opposite side of the torque tube, so that downward displacer travel moves the flapper away from the nozzle. With the 2100E switch (figure 4), rising liquid level exerts a buoyant force on the torque tube that either activates or deactivates an electrical SPDT or DPDT switch depending on the switching action desired. Falling liquid level...

Open the catalog to page 5

www.Fisher.comFisher™ 2100 Pneumatic and 2100E ElectricLiquid Level Switches - 6

Product Bulletin Figure 5. Dimensions (also see table 1) 1/4 NPT AIR CONNECTION 0N BACK (2100 SWITCH ONLY) 1 NPT TAPPED & PLUGGED 152 (6.00) Table 1. Dimensions DIMENSIONS mm

Open the catalog to page 6

www.Fisher.comFisher™ 2100 Pneumatic and 2100E ElectricLiquid Level Switches - 7

Product Bulletin 32.2:2100 August 2017

Open the catalog to page 7

www.Fisher.comFisher™ 2100 Pneumatic and 2100E ElectricLiquid Level Switches - 8

Product Bulletin 32.2:2100 August 2017 Neither Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user. Fisher is a mark owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. Emerson Automation Solutions, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of...

Open the catalog to page 8