Quick Start Guide
D103470X012
DLC3020f Digital Level Controller
April 2022
34
Table 6. Displacer and Torque Tube Materials
Part
Standard Material
Other Materials
Displacer
304 Stainless Steel
316 Stainless Steel, N10276, N04400, Plastic, and Special Alloys
Displacer Stem, Driver Bearing,
Displacer Rod and Driver
316 Stainless Steel
N10276, N04400, other Austenitic Stainless Steels, and Special Alloys
Torque Tube
N05500
(1)
316 Stainless Steel, N06600, N10276
1. N05500 is not recommended for spring applications above 232
_
C (450
_
F). Contact your Emerson sales office or application engineer if temperatures exceeding this
limit are required.
Table 7. Caged Displacer Sensors
(1)
Torque Tube
Orientation
Sensor
Standard Cage, Head, and
Torque Tube Arm Material
Equalizing Connection
Pressure Rating
(2)
Style
Size (NPS)
Torque tube arm
rotatable with respect to
equalizing connections
249
(3)
Cast iron
Screwed
1‐1/2 or 2
CL125 or CL250
Flanged
2
249B, 249BF
(4)
Steel
Screwed or optional
socket weld
1‐1/2 or 2
CL600
Raised face or optional
ring‐type joint flanged
1‐1/2
CL150, CL300, or CL600
2
CL150, CL300, or CL600
249C
(3)
316 stainless steel
Screwed
1‐1/2 or 2
CL600
Raised face flanged
1‐1/2
CL150, CL300, or CL600
2
CL150, CL300, or CL600
249K
Steel
Raised face or optional
ring‐type joint flanged
1‐1/2 or 2
CL900 or CL1500
249L
Steel
Ring‐type joint flanged
2
(5)
CL2500
1. Standard displacer lengths for all styles (except 249) are 14, 32, 48, 60, 72, 84, 96, 108 and 120 inches. The 249 uses a displacer with a length of either 14 or
32 inches.
2. EN flange connections available in EMA (Europe, Middle East and Africa).
3. Not available in EMA.
4. 249BF available in Europe only. Also available in EN size DN 40 with PN 10 to PN 100 flanges and size DN 50 with PN 10 to PN 63 flanges.
5. Top connection is NPS 1 ring‐type joint flanged for connection styles F1 and F2.
TOP AND BOTTOM CONNECTIONS,
SCREWED (S‐1) OR FLANGED (F‐1)
TOP AND LOWER SIDE CONNECTIONS,
SCREWED (S‐2) OR FLANGED (F‐2)
UPPER AND LOWER SIDE CONNECTIONS,
SCREWED (S‐3) OR FLANGED (F‐3)
UPPER SIDE AND BOTTOM CONNECTIONS,
SCREWED (S‐4) OR FLANGED (F‐4)
Figure 20. Style Number of Equalizing Connections
STYLE 1
STYLE 2
STYLE 3
STYLE 4