Data Sheet

Bulletin 71.1:1301
6





liters

   
(1)
   Liters  Liters  Liters  Liters
200 to 500 psig / 13.8 to 34.5 bar
1K156027142, Silver
200
500
13.8
34.5
1.12
- - - -
4.2
- - - -
1.73
- - - -
6.5
- - - -
2.24
1.99
8.5
7.5
2.64
2.58
10.0
9.8
1. Inlet pressure greater than 1000 psig / 69.0 bar is not recommended for water service.
Table 6. Type 1301G Regulating Capacities — Water
(1)










       
(1)

(1)
10 to 75 psig / 0.69 to 5.2 bar
1D387227022, Blue
25
50
75
1.7
3.4
5.2
0.056
0.065
0.073
0.048
0.057
0.066
0.043
0.052
0.061
0.040
0.050
0.058
0.037
0.046
0.055
0.032
0.041
0.051
0.029
0.038
0.049
50 to 150 psig / 3.4 to 10.3 bar
1B788527022, Silver
75
150
5.2
10.3
0.068
- - - -
0.064
0.089
0.059
0.084
0.057
0.080
0.054
0.078
0.050
0.075
0.047
0.074
100 to 225 psig / 6.9 to 15.5 bar
1D4651270142, Red
150
225
10.3
15.5
- - - -
- - - -
0.083
0.100
0.080
0.097
0.078
0.095
0.076
0.094
0.074
0.092
0.074
0.091
1. Inlet pressure greater than 1000 psig / 69.0 bar is not recommended for water service.
Table 7. Type 1301F C
V
Coefcients
(1)
— Incompressible Fluid
Table 8. Type 1301G C
V
Coefcients
(1)
— Incompressible Fluid










      
(1)

(1)

(1)
200 to 500 psig / 13.8 to 34.5 bar
1K156027142, Silver
200
500
13.8
34.5
0.095
- - - -
0.094
- - - -
0.092
0.106
0.091
0.105
0.089
0.104
0.088
0.103
0.088
0.103
1. Inlet pressure greater than 1000 psig / 69.0 bar is not recommended for water service.
Maximum Allowable Pressure Drop for Liquid
Pressure drops in excess of allowable will result in choked
owandpossiblecavitationdamage.Chokedowisthe
formationofvaporbubblesintheliquidowstreamcausing
aconditionatthevenacontractawhichtendstolimitow
through the regulator. The vena contracta is the minimum
cross-sectionalareaoftheowstreamoccurringjust
downstream of the actual physical restriction. Cavitation
andashingarephysicalchangesintheprocessuid.The
change is from the liquid state to the vapor state and results
fromtheincreaseinuidvelocityatorjustdownstreamof
thegreatestowrestriction,normallytheregulatororice.
To determine the maximum allowable pressure drop for water:
ΔP (allow) = K
m
(P
1
)
where,
ΔP = pressure drop across the
regulator, psi
K
m
 = valverecoverycoefcient
P
1
= absolute inlet pressure, psia
Todeterminemaximumallowablepressuredropforuids
other than water, use other Fisher
®
sizing methods or contact
yourlocalSalesOfceforassistance.

Optional materials are available for applications
handling sour gases. These constructions comply
with the recommendations of NACE International sour
service standards.
The manufacturing processes and materials used by
Emerson Process Management Regulator Technologies, Inc.
assurethatallproductsspeciedforsourgasservicecomply
with the chemical, physical, and metallurgical requirements
of NACE MR0175 and/or NACE MR0103. Customers have
the responsibility to specify correct materials. Environmental
limitations may apply and shall be determined by the user.

UsetheSpecicationssectiononpages2and3tocomplete
the Ordering Guide on page 8. Specify the desired selection
wherever there is a choice to be made. Provide your Sales
Ofcewiththisinformationwhenorderingtheregulator.