Option Reduced Bore Type (/R1) (*1) - YOKOGAWA DY025 User Manual

9.4.3 OPTION REDUCED BORE TYPE (/R1) (*1)

This option is the same as standard specification except the following items.
Model Code (Note 2)
A
B
Measurable minimum Refer to table 9.5.1.
flow velocity
Range of measurable Refer to table 9.5.2.
flow velocity
(Note 1) For detailed accuracy, see "SIZING". Not available for /LT.
Not available for /SF1, /SS1
(Note 2) Flange type only: JIS10K,20K (BJ1,BJ2) and ANSI150,300 (BA1,BA2,BS1,BS2)
MS Code [*] of "DY***-" means flange piping size.
(Note 3) High process temperature version (/HT) and Multi-variable type (/MV) for DY025/R1 and DY040/R2 are not available.
Flange piping size R1 Detector size
(A) (inner dia.) (B)
DY025
15 (14.6) (mm) (Note 3)
DY040 25 (25.7) (mm)
DY050 40 (39.7) (mm)
DY080 50 (51.1) (mm)
DY100 80 (71) (mm)
DY150 100 (93.8) (mm)
DY200 150 (138.8) (mm)
Reduced bore type (Option Code: /R1, /R2)
[Pressure Loss]
R2 Detector size
(inner dia.) (B) R1: about 15% increases to standard type.
R2: about 28% increases to standard type.
see P.9-18
15 (14.6) (mm) (Note 3)
25 (25.7) (mm)
40 (39.7) (mm)
50 (51.1) (mm)
80 (71) (mm)
100 (93.8) (mm)
9-11
9. GENERAL DESCRIPTION
T10-1.EPS
IM 01F06A00-01E