Emerson Fisher SR5, Инструкция по эксплуатации

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Specifications
The Specifications section on this page provides the ratings and other specifications for the Type SR8. The following information
is stamped on the nameplate fastened on the regulator at the factory: type; body size; maximum inlet, outlet and differential
pressure; maximum pressure above setpoint; maximum temperature; spring range; cage type; trim and diaphragm material.
Body Sizes, Inlet and Outlet Connection Style
1/2, 3/4, 1, 1-1/2, 2 and 3 in. /
15, 20, 25, 40, 40 x 25, 50 and 80 mm
End Connection
(4)
Tri-Clamp
®
Sanitary connections
Body Pressure/Temperature Ratings
(1)
MAXIMUM
TEMPERATURE
MAXIMUM INLET
PRESSURE
MAXIMUM OUTLET
PRESSURE
°F °C psig bar psig bar
150 65 210 14.5 210 14.5
275 135 180 12.4 180 12.4
400 204 160 11.0 160 11.0
Maximum Operating Pressures
(1)(3)
See Table 1
Set Pressure Ranges
See Table 2
Maximum Differential Pressures
(1)
See Table 3
Regulator Temperature Capabilities
(1)
See Table 4
Pressure Registration
Internal
Vacuum Protection Option
Maximum Vacuum Pressure
14 psig / 0.96 bar (vacuum)
Service Media
1/2, 3/4, 1 and 1-1/2 x 1 in. / 15, 20, 25 and
40 x 25 mm: Steam, Gas and Liquid
1-1/2 in. / 40 mm full port: Steam and Gas only, Liquid
not recommended
2 and 3 in. / 50 and 80 mm: Steam, Gas and
Liquid Service
Options
Vacuum protection
Pressure loaded spring case
T-handle adjusting screw
Pressure Loaded Spring Case Option
Maximum Loading Pressure
1/2, 3/4 and 1 in. / 15, 20 and 25 mm bodies:
135 psig / 9.3 bar
1-1/2 in. / 40 mm body:
100 psig / 6.9 bar
2 and 3 in. / 50 and 80 mm bodies:
75 psig / 5.2 bar
1/4 NPT tapped vent connection
Certifications Available Upon Request
FDA approved elastomers/plastics
Material and Functional Test Certificates
USP Class VI approved elastomers/plastics
(2)
1. The pressure/temperature limits in this Instructional Manual and any applicable standard or code limitation should not be exceeded.
2. Contact your local Sales Office for details on available constructions.
3. Maximum pressure to prevent damage to internal parts and leakage to atmosphere.
4. End connection clamps and gaskets to be supplied by the user.
Principle of Operation
Pressure in the controlled system (regulator outlet pressure)
registers beneath the diaphragm of the regulator and
opposes the force provided by the predetermined spring
compression. When regulator spring force exceeds
diaphragm force exerted by the outlet pressure, the spring
will keep the valve plug open to permit additional flow to the
downstream system. As downstream demand decreases the
outlet pressure will increase. This increase registers on the
diaphragm and the valve plug moves closer to the orifice to
decrease the flow rate.
Installation
Clean out all pipelines before installation of the regulator
and check to be sure the regulator has not been damaged
or collected foreign material during shipping. The regulator
may be installed in any position desired. However, to ensure
self-draining (from outlet to inlet) the regulator should be
installed with the spring case in the upright vertical position.
The arrow on the body indicates flow direction.
The piping flange to regulator end connection flange clamps
and gaskets are supplied by the user. Clamp gaskets must
be compatible with the system requirements. Install and
tighten clamps to manufacture’s specifications.
Note
It is important that the regulator be installed
so that the vent hole in the spring case is
unobstructed at all times.
Tri-Clamp
®
is a mark owned by Tri-Clover Incorporated.
2
Type SR5