Emerson Fisher 299H Series Installation Manual page 3

BoDy sIzE
Dn In.
- - - - 1-1/4
- - - - 1-1/2
50 2
1. This flange is available with a face-to-face dimension of 191 mm / 7.5 in. or 254 mm / 10 in.
outlEt (Control) PrEssurE rangE
mbar
9 to 15
(1)
12 to 22
(1)
17 to 50
(1)
40 to 99
(1)
69 mbar to 0.22 bar
0.19 to 0.41 bar
0.35 to 1.1 bar
0.97 to 2.4 bar
2.1 to 4.1 bar
1. Use a pilot supply regulator if actual inlet pressure varies more than ±1.4 bar / 20 psi and the published accuracy is required.
5. Slowly open the downstream block valve.
6. Slowly close the bypass valve, if used.
7. Check all connections for leaks.
the type VsX2 is not interchangeable
with the type VsX8 module. Each slam-
shut module requires a mating valve
body. Both slam-shut and body can be
replaced in the field. see parts list for
part numbers.
299H series adjustment
Keys are referenced in Figure 2. The only adjustment
on a 299H Series regulator is the reduced pressure
setting of the pilot control spring (key 32). Remove
the closing cap (key 29) and turn the adjusting screw
(key 36). Turning the adjusting screw clockwise into
the spring case increases the controlled or reduced
pressure setting. Turning the screw counterclockwise
decreases the reduced pressure setting. Always
tighten the locknut (key 35) and replace the closing
cap after making adjustments.
It is recommended that the 299H series
regulators use a complete matching
casing set that includes an upper case,
a lower case and spring case in the
old blank configuration or new swirl
configuration. However, these parts are
interchangeable with each other.
Table 1. Body Sizes and End Connection Styles
Cast Iron
(For types 299H and 299Hr only)
NPT
NPT
NPT and CL125 FF flanged
(1)
Table 2. Outlet Pressure Ranges
In. w.c.
3.5 to 6
(1)
5 to 9
(1)
7 to 20
(1)
16 to 40
(1)
1 to 3.25 psig
2.75 to 6 psig
5 to 16 psig
14 to 35 psig
30 to 60 psig
note
note
BoDy MatErIal anD EnD ConnECtIon stylE
Ductile Iron
- - - -
NPT
NPT, CL125 FF, CL250 RF flanged and
PN 10/16 flanged
299H
X
X
X
X
X
X
X
X
X
Taking Out of Service (Shutdown)
to avoid personal injury resulting from
sudden release of pressure, isolate
the regulator from all pressure before
attempting disassembly.
the seal and warning tag contain
important safety information, if removed
be sure to reattach before startup.
Parts list
299H Series Regulator
Key Description
1 Lower Casing, Types 299H, 299HV and 299HVR
2 Upper Casing, Type 299HV
3 Closing Cap
4 Spring Seat Delrin
Steel (High vibration or engine applications - used with key 93)
5 Adjustment Nut
6 Closing Spring
7 Pressure Equalization Spring
8* Diaphragm
9* O-ring
10 Diaphragm Post
11 Pusher Post
12 Orifice
13* Disk
14* O-ring
15* O-ring
16 Valve Stem Assembly
17 Valve Body
18 Cap Screw
19 Elbow (3 required for Cast Iron or Steel bodies; 2 required for
Ductile Iron Bodies)
*Recommended spare part.
Delrin is a mark owned by E.I. du Pont de Nemours and Co.
®
299H Series
steel
(For types 299H and 299Hr only)
- - - -
NPT
NPT and CL150 RF flanged
tyPE
299Hr, 299HV and 299HVr
X
X
X
X
X
X
X
- - - -
- - - -
WarnIng
!
(standard)
®
3