Emerson Fisher 630 Series Instruction Manual page 3

ORIfICE SIzE
In. mm
1/8 and 3/16 3.2 and 4.8
1/4 6.4
3/8 9.5
1/2 13
Note: Maximum inlet pressure not exceeded 1500 psig / 103 bar.
1. Inlet pressure must not exceed the sum of the actual outlet pressure setting and the maximum allowable pressure drop. For example, with an outlet pressure setting of 200 psig / 13.8 bar
and a 3/8 in. / 9.5 mm orifice with a maximum allowable pressure drop of 500 psid / 34.5 bar d, the maximum inlet pressure is 700 psig / 48.3 bar.
2. Nitrile (NBR) valve disks are normally furnished for pressure drops to 200 psi / 13.8 bar, differential. For better erosion resistance, Nylon (PA) valve disks are normally furnished for
higher pressure drops. Some erosion of valve disks occurs at all pressure drops due to solid particles in the flow stream. The rate of erosion is higher with large amounts of impurities in the
flow stream and with high pressure drops. Valve disks and other regulator parts must be inspected periodically for erosion and damage and must be replaced as necessary.
Table 2. Type 630 Regulator Outlet Pressure Ranges and Maximum Outlet Pressures
OUTlET PRESSURE RangE
REgUlaTOR
COnSTRUCTIOn
psig
3 to 10
8 to 20
low-Pressure
17 to 30
27 to 40
27 to 50
46 to 95
90 to 150
High-Pressure
150 to 200
200 to 275
275 to 500
1. Damage to internal parts of the regulator may occur if outlet pressure exceeds the actual pressure setting by amounts greater than those shown in this column.
2. For outlet pressure settings to 25 psig / 1.72 bar only. For pressure settings over 25 psig / 1.72 bar, outlet pressure is limited by maximum emergency outlet pressure of 45 psig / 3.10 bar.
3. For outlet pressure settings to 350 psig / 24.1 bar only. For pressure settings over 350 psig / 24.1 bar, outlet pressure is limited by maximum emergency outlet pressure of 550 psig / 37.9 bar.
4. Leakage or bursting of pressure-containing parts may occur if outlet pressure exceeds these values.
RElIEf ValVE
COnSTRUCTIOn
low-Pressure
High-Pressure
1. Leakage or bursting of pressure-containing parts may occur if inlet pressure exceeds these values.
To avoid overpressure, provide an
appropriate overpressure protection
device to ensure that none of the limits
listed in Specifications section, Tables 1
through 3 will be exceeded.
Regulator or relief valve operation below the limits
specified in Specifications section, Tables 1 through 3
does not preclude the possibility of damage from external
sources or from debris in the gas line. Inspect the
regulator for damage after any overpressure condition.
Table 1. Maximum Allowable Inlet Pressures and Pressure Drops
MaXIMUM allOWaBlE
InlET PRESSURE
(1)
Polytetrafluoroethylene
psig bar
1500 103
1000 69
750 51.7
SPRIng PaRT
nUMBER
bar
0.21 to 0.69 0W019227022
0.55 to 1.38 0W019127022
1.17 to 2.07 0W019027022
1.86 to 2.76 0Y066427022
1.86 to 3.45 0W019227022
3.17 to 6.55 0W019127022
6.21 to 10.3 0W019027022
10.3 to 13.8 0Y066427022
13.8 to 19.0 1J146927142
19.0 to 34.5 1K370927082
Table 3. Type 630R Relief Pressure Ranges
RElIEf (InlET)
PRESSURE RangE
psig bar
3 to 8 0.21 to 0.55
6 to 17 0.41 to 1.17
15 to 22 1.03 to 1.52
20 to 35 1.38 to 2.41
35 to 50 2.41 to 3.45
30 to 70 2.07 to 4.83
50 to 95 3.45 to 6.55
75 to 175 5.17 to 12.1
150 to 250 10.3 to 17.2
MaXIMUM allOWaBlE PRESSURE DROP
nylon (Pa) and
(2)
fluorocarbon (fKM) Disk
(PTfE) Disk
psig bar psig
1500 103
1000 69
200
500 34.5
250 17.2
MaXIMUM OPERaTIng
OUTlET PRESSURE
psig bar
10 0.69
20 1.38
30 2.07
40 2.76
50 3.45
95 6.55
150 10.3
200 13.8
275 19.0
500 34.5
MaXIMUM allOWaBlE
PaRT nUMBER RElIEf (InlET) PRESSURE,
0W019227022
0W019127022 Relief Pressure Setting Plus
0W019027022 Maximum Allowable Buildup of
0Y066427022
1J146927142
0W019127022
Relief Pressure Setting Plus
0W019027022
Maximum Allowable Buildup of
0Y066427022
1J146927142
Startup
Starting up the unit consists of opening the upstream
block valve, introducing gas pressure. Use gauges to
monitor pressures during startup.
The range of allowable pressure settings is marked
on the nameplate. If a pressure setting beyond the
nameplate range is required, substitute an appropriate
spring selected from Table 5. Be sure to change the
nameplate to indicate the new pressure range.
630 Series
nitrile (nBR)
bar psig
600
13.8
500
250
MaXIMUM OUTlET MaXIMUM EMERgEnCy
PRESSURE
OVER SETPOInT
(1)
psig bar
20 1.38
20 1.38
(2) (2)
Limited by Maximum
Emergency Outlet Pressure
200 13.8
200 1.38
(3) (2)
MaXIMUM EMERgEnCy
InlET (CaSIng) PRESSURE
psig / bar
psig
75
25 psig / 1.72 bar
550
250 psig / 17.2 bar
Disk
(2)
bar
41.4
34.5
17.2
OUTlET (CaSIng)
PRESSURE
(4)
psig bar
66 4.55
550 37.9
(1)
bar
5.17
37.9
3