March 2015
Rosemount DP Flow
Rosemount 1595 Conditioning Orifice Plate
Rosemount 1595 Conditioning Orifice combines a flow conditioner with an orifice plate into a highly
accurate primary element.
Requires only 2 diameters of straight pipe run upstream and downstream from most flow disturbances
Suitable for most gas, liquid, and steam applications
Available in 2 to 24-in. (50 - 600 mm) line sizes
Additional Information
Specifications:
Dimensional Drawings: page 229
Installation and Flowmeter Orientation: page 189
Ordering information
Table 1. Rosemount 1595 Conditioning Orifice Plate Ordering Table
★ The Standard offering represents the most common options. The starred options (★) should be selected for best delivery.
__The Expanded offering is subject to additional delivery lead time.
Model Product description
1595 Conditioning Orifice Plate
page 168
Plate type
P Paddle, Square Edged
(1)(2)
U
Universal, Square Edged
Line size
020 2-in. (50 mm)
030 3-in. (76 mm)
040 4-in. (100 mm)
060 6-in. (150 mm)
080 8-in. (200 mm)
100 10-in. (250 mm)
120 12-in. (300 mm)
140 14-in. (350 mm)
160 16-in. (400 mm)
180 18-in. (450 mm)
200 20-in. (500 mm)
240 24-in. (600 mm)
Flange rating
★
★
★
★
★
★
★
★
★
A1 ANSI Class 150 Raised Face (not compatible with standard ASME B16.36 Orifice Flanges)
A3 ANSI Class 300 Raised Face
A6 ANSI Class 600 Raised Face
A9 ANSI Class 900 Raised Face
AF ANSI Class 1500 Raised Face
AT ANSI Class 2500 Raised Face
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165
Rosemount DP Flow
Table 1. Rosemount 1595 Conditioning Orifice Plate Ordering Table
★ The Standard offering represents the most common options. The starred options (★) should be selected for best delivery.
__The Expanded offering is subject to additional delivery lead time.
(1)
D1
(1)
D2
(1)
D3
(1)
D4
(1)
D5
(1)
D6
(1)
R3
(1)
R6
(1)
R9
(1)
RF
(1)
RT
Material type
DIN PN 10 (only available with Plate Type P)
DIN PN 16 (only available with Plate Type P)
DIN PN 25 (only available with Plate Type P)
DIN PN40 (only available with Plate Type P)
DIN PN 63 (only available with Plate Type P)
DIN PN 100 (only available with Plate Type P)
ANSI Class 300 Ring Joint (only available with Orifice Plate Type code U and requires Plate Holder code PH)
ANSI Class 600 Ring Joint (only available with Orifice Plate Type code U and requires Plate Holder code PH)
ANSI Class 900 Ring Joint (only available with Orifice Plate Type code U and requires Plate Holder code PH)
ANSI Class 1500 Ring Joint (only available with Orifice Plate Type code U and requires Plate Holder code PH)
ANSI Class 2500 Ring Joint (only available with Orifice Plate Type code U and requires Plate Holder code PH)
March 2015
★
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S 316/316L Stainless Steel
M Alloy 400
H Alloy C-276
Orifice plate thickness Plate type P Plate type U
A 0.125-in. Line sizes 2 to 4-in. (50 to 100 mm) Line size 2 to 6-in. (50 to 150 mm)
B 0.250-in. Line sizes 6 to 12-in. (150 to 300 mm) Line size 8 to 12-in. (200 to 300 mm)
C 0.375-in. Line sizes 14 to 20-in. (350 to 500 mm) N/A
D 0.500-in. Line size 24-in. (600 mm) N/A
Beta ratio
020 0.20 Beta Ratio
040 0.40 Beta Ratio
050 0.50 Beta Ratio
065 0.65 Beta Ratio (0.60 beta ratio for Line Size option 020 only)
Options (include with selected model number)
Extended product warranty
WR3 3-year limited warranty
WR5 5-year limited warranty
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★
Flow calibration
WD Discharge Coefficient Verification (full 10 points)
Plate holder
(1)
PH
Plate Holder for Universal Type Orifice Plate for use with RTJ flange or section
166
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March 2015
Rosemount DP Flow
Table 1. Rosemount 1595 Conditioning Orifice Plate Ordering Table
★ The Standard offering represents the most common options. The starred options (★) should be selected for best delivery.
__The Expanded offering is subject to additional delivery lead time.
Special cleaning
P2 Cleaning for Special Services
Special inspection
QC1 Visual and dimensional Inspection with certification
QC7 Inspection and performance certificate
Material traceability certification
Q8 Material Certification per ISO 10474 3.1-B and EN 10204 3.1
Code conformance
(3)
J5
NACE MR-0175/ISO 15156
Country certification
J1 Canadian Registration
Typical model number: 1595 P 060 A3 S A 040
(1) Currently available up to 12-in. (300 mm) line size.
(2) For use with a plate holder device in RTJ type flanges or orifice fittings.
(3) Materials of Construction comply with metallurgical requirements within NACE MR0175/ISO for sour oil field production environments. Environmental limits
apply to certain materials. Consult latest standard for details. Selected materials also conform to NACE MR0103 for sour refining environments.
★
★
★
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Rosemount DP Flow
Specifications
March 2015
Performance specifications
Flow coefficient uncertainty
Table 2. Discharge Coefficient Uncertainty
Cd uncertainty
Beta ratio
(1)
With WD
calibration
β = 0.20 ±0.50% ± 0.50%
β = 0.40 ±0.50% ±1.00%
β = 0.50 ±1.00% ±1.50%
β = 0.65 ±1.00% ±1.50%
(1) For 0.65 beta and ReD < 10,000, add an additional 0.5% to the Discharge
Coefficient Uncertainty.
(2) When using the Calibration Factor (Fc) supplied.
Sizing
Contact an Emerson Process Management representative for
assistance. A Configuration Data Sheet is required prior to order
for application verification. To complete the Configuration Data
Sheet go to:
http://www3.emersonprocess.com/Rosemount/DP_Flow/Appli
cation/Pages/PCDefault.aspx
Pressure tap orientation
Orient the 1595 Conditioning Orifice Plate so that the pressure
taps are centered between any 2 (of 4) orifice bore holes. In
addition, the pressure taps should be located at 90° to the plane
of the last upstream elbow under any of these conditions:
with less than 6 upstream pipe diameters
with a 0.65 Beta
The 1595 Conditioning Orifice Plate can be used with the
following pressure taps:
(2)
Standard
Functional specifications
Service and flow range
Liquid, gas or steam turbulent flow, for pipe Reynold’s Numbers
greater than 5,000. For pipe Reynold's Numbers less than
10,000 add an additional +0.5% uncertainty to the discharge
coefficient uncertainty.
Pipe sizes
2 to 24-in. (50 to 600 mm). Contact Emerson Process
Management for other pipe sizes.
Operating limits
For line sizes 2-in. (50 mm) to 24-in. (600 mm)
Temperature Range: –320 to 1200 °F (–196 to 649 °C)
– 320 to 800 °F (–196 to 427 °C) and differential pressure up
to 800 inH20
800 to 1200 °F (427 to 649 °C) and differential pressure up to
400 inH
0
2
Maximum working pressure
Flange rating per ANSI B16.5 and DIN EN 1092-1
Physical specifications
Material of construction
Table 3. 1595 Materials of Construction
Code Description ASTM UNS DIN (W.-Nr.)
316/316L
S
SST
H Alloy C-276
M Alloy 400
A240 Gr
316/316L
B575 Gr
N10376
B127 Gr
N04400
S31600/
S31603
N10276 2.4819
N04400 2.4360
1.4401/1.4404
(1.4436/1.4435)
Corner pressure taps - all beta sizes
Flange pressure taps - all beta sizes
Radius pressure taps (D and D/2) - 0.4 beta size or smaller
Centering requirements
The 1595 should be installed so that it is centered in the pipes as
recommended by ISO-5167.
168
Flange mounting hardware
The 1595 can be used with the Rosemount 1496 Flange
Union.
Orifice type
Paddle, square-edge
Universal, square-edge
Typical orifice hole sizes
Beta is calculated by: β = dC / Pipe ID, where the calculated bore
is equal to 2 x typical orifice hole size (d
the diameter of each of the four orifice holes.
= 2d). Tab le 4 shows
C
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March 2015
Table 4. Typical Orifice Hole Sizes
Line size Pipe ID
Rosemount DP Flow
Beta (β) = 0.20dBeta (β) = 0.40dBeta (β) = 0.50dBeta (β) = 0.65
d
2-in. (50.8 mm) 2.067-in. (52.502 mm) 0.207 (5.26) 0.413 (10.49) 0.517 (13.13) 0.620
3-in. (76.2 mm) 3.068-in. (77.927 mm) 0.307 (7.80) 0.614 (15.60) 0.767 (19.48) 0.997 (25.32)
4-in. (101.6 mm) 4.026-in. (102.26 mm) 0.403 (10.25) 0.805 (20.45) 1.007 (25.57) 1.308 (32.22)
6-in. (152.4 mm) 6.065-in. (154.051 mm) 0.607 (15.42) 1.213 (30.81) 1.516 (38.52) 1.971 (50.06)
8-in. (203.2 mm) 7.981-in. (202.717 mm) 0.798 (20.27) 1.596 (40.54) 1.995 (50.68) 2.594 (65.89)
10-in. (254.0 mm) 10.02-in. (254.508 mm) 1.002 (25.45) 2.004 (50.90) 2.505 (63.63) 3.257 (82.73)
12-in. (304.8 mm) 12.00-in. (304.8 mm) 1.200 (30.48) 2.400 (60.96) 3.000 (76.2) 3.900 (99.06)
14-in. (355.6 mm) 13.124-in. (333.35 mm) 1.312 (33.32) 2.625 (66.68) 3.281 (83.34) 4.265 (108.33)
16-in. (406.4 mm) 15.000-in. (381.00 mm) 1.500 (38.10) 3.000 (76.20) 3.750 (95.25) 4.875 (123.83)
18-in. (457.2 mm) 16.876-in. (428.65 mm) 1.688 (42.88) 3.375 (85.73) 4.219 (107.16) 5.485 (139.32)
20-in. (508.0 mm) 18.812-in. (477.82 mm) 1.881 (47.78) 3.762 (95.55) 4.703 (119.46) 6.114 (155.30)
24-in. (609.6 mm) 22.624-in. (574.65 mm) 2.262 (57.45) 4.525 (114.94) 5.656 (143.66) 7.353 (186.77)
(1) For 2-in. (50.8 mm) line size, the beta (β) is 0.60.
(15.75)
(1)
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