Emerson Rosemount 2051 Reference Manual page 102

Reference Data
March 2024
A.3.2 Process Connections
2051C
• 1/4–18 NPT on 2 1/8-in. centers
• 1/2–14 NPT and RC 1/2 on 2-in.(50.8mm), 2 1/8-in. (54.0 mm), or 2 1/4-in. (57.2mm)
centers (process adapters)
2051T
• 1/2–14 NPT female
• G 1/2 A DIN 16288 male (available in SST for Range 1–4 transmitters only)
• Autoclave type F-250-C (Pressure relieved 9/16–18 gland thread; 1/4 OD high pressure
tube 60° cone; available in SST for Range 5 transmitters only)
2051L
• High pressure side: 2-in.(50.8mm), 3-in. (72 mm), or 4-in. (102mm), ASME B 16.5 (ANSI)
Class 150 or 300 flange; 50, 80 or 100 mm, DIN 2501 PN 40 or 10/16 flange
• Low pressure side: 1/4–18 NPT on flange, 1/2–14 NPT on process adapter
A.3.3 2051C Process Wetted Parts
Drain/Vent Valves
316 SST or Alloy C-276
Process Flanges and Adapters
Plated carbon steel, SST CF-8M (cast version of 316 SST, material per ASTM-A743), or
CW12MW (cast version of Alloy C-276)
Wetted O-rings
Glass-filled PTFE or Graphite-filled PTFE
Process Isolating Diaphragms
316L SST or Alloy C-276
A.3.4 2051T Process Wetted Parts
Process Connections
• 316L SST or Alloy C-276
Process Isolating Diaphragms
• 316L SST or Alloy C-276
A.3.5 2051L Process Wetted Parts
Flanged Process Connection (Transmitter High Side)
Process Diaphragms, Including Process Gasket Surface
• 316L SST or Alloy C-276
Extension
102
Reference Manual
00809-0100-4101
Emerson.com/Rosemount