Emerson FISHER T208 Series Manuel d'installation - Page 2
Parcourez en ligne ou téléchargez le pdf Manuel d'installation pour {nom_de_la_catégorie} Emerson FISHER T208 Series. Emerson FISHER T208 Series 4 pages. Tank blanketing vapor recovery regulator
Également pour Emerson FISHER T208 Series : Manuel d'installation (4 pages), Manuel d'instruction (12 pages)
Imprimer la page
T208 Series
Additionally, physical damage to the
regulator could result in personal injury
and property damage due to escaping
fluid. To avoid such injury and damage,
install the regulator in a safe location.
Clean out all pipelines before installation of the
regulator and check to be sure the regulator has not
been damaged or has collected foreign material during
shipping. For NPT bodies, apply pipe compound to the
external pipe threads. For flanged bodies, use suitable
line gaskets and approved piping and bolting practices.
Install the regulator in any position desired
otherwise specified, but be sure flow through the body
is in the direction indicated by the arrow on the body.
It is important that the regulator be
installed so that the vent hole in the
spring case is unobstructed at all times.
For outdoor installations, the regulator
should be located away from vehicular
traffic and positioned so that water, ice
and other foreign materials cannot enter
the spring case through the vent. Avoid
placing the regulator beneath eaves or
downspouts, and be sure it is above the
probable snow level.
Overpressure Protection
Recommended pressure limitations are stamped on
the regulator nameplate. Vapor recovery regulators are
used to maintain a constant inlet (blanket) pressure
with the outlet flowing to a system whose pressure is
lower than that at the inlet. The recovery regulators
are not intended to be used as an ASME certified
relief device for overpressure protection on a tank.
They are to be used as part of a gas blanketing
system to control outflow of blanketing gas under
normal conditions and collect tank vapors for the
vapor disposal reclamation system. Provide alternate
methods of emergency overpressure protection.
Startup
The regulator is factory set at approximately
the midpoint of the spring range or the pressure
requested, so an initial adjustment may be required
to give the desired results. With proper installation
completed and relief valves properly adjusted, slowly
open the upstream and downstream shutoff valves.
*Recommended Spare Part
1. For proper operation to achieve the published capacities at low setpoint, the spring case barrel should be installed pointed down as shown in Figure 1.
2. Use for optional external square head adjusting screw assembly recommended for 62 to 172 mbar / 0.9 to 2.5 psig, 90 to 310 mbar / 1.3 to 4.5 psig and 0.26 to 0.48 bar /
3.8 to 7 psig spring ranges only.
2
, unless
(1)
Note
Adjustment
To change the control pressure, perform the
following procedure.
For internal flat circular adjusting screw:
1. Remove the closing cap (key 22).
2. Use a 25 mm / 1-inch hex rod or flat screwdriver to
turn the adjusting screw (key 35) either clockwise
to increase control pressure or counterclockwise to
decrease control pressure. The regulator will go into
immediate operation. To ensure correct operation,
always use a pressure gauge to monitor the vapor
recovery pressure when making adjustments.
3. After making the adjustment, replace the closing
cap gasket (key 25) and install the closing
cap (key 22).
For external square head adjusting screw:
1. Loosen the locknut (key 20).
2. Turn the adjusting screw (key 35) either clockwise
to increase control pressure or counterclockwise
to decrease control pressure. Always use pressure
gauge to monitor the vapor recovery pressure when
making adjustments.
3. After making the adjustment, tighten the
locknut (key 20).
Taking Out of Service (Shutdown)
▲
To avoid personal injury resulting from
sudden release of pressure, isolate the
regulator from all pressure before
attempting disassembly.
Parts List
Key
Description
1
Body
2
Cap Screw
3
Spring Case
4
Lower Casing
5*
Orifice
6
Spring
7
Diaphragm Head
8
Pusher Post
9
Diaphragm Gasket
10* Diaphragm
11*
Body Seal O-ring
12* Insert Seal O-ring
13* Disk Assembly
14
Stem
16
Lever Assembly
17
Machine Screw
18
Guide Insert
19
Upper spring seat
(2)
20
Lock Nut
(2)
22
Closing Cap
23
Hex Nut
24
Cap Screw
25* Closing Cap Gasket
WARNING
Key
Description
26
Vent Assembly
27
Pipe Plug
(Type T208 only)
30* Stem Seal O-ring
(Type T208M only)
31* Throat Seal O-ring
(Type T208M only)
34
Machine Screw
(Type T208M only)
35
Adjusting Screw
36
Washer
38
Cap Screw
41
Back Disk Spring
42* Back Body Seal O-ring
43
Back Body Cap
44
Disk Spacer
45* Diaphragm Head Gasket
46
Nameplate
47
Drive screw
48
Flow arrow
49
Backup Ring
50
Lower Spring Seat
51
NACE Tag (not shown)
52
Tag Wire (not shown)