Sentry Saf-T-Vise STV-HP1, Инструкция по установке, эксплуатации и обслуживанию, Страница: 6 / 16

6 Sentry Equipment Corp
General Description
The Sentry® Saf-T-Vise STV-HP1 and STV-HP3 insertable tool
holders are multi-functional tools that can be equipped to
monitor pipeline corrosion, inject chemical into the process,
or sample the pipeline medium The holders are engineered
to specific site applications with a variety of materials and
connection styles and sizes Design pressure and temperature
requirements determine the model series and sealing
technology of the holder
The holders are designed with a patented locking collet which
secures the rod/shaft within the process stream until released
by the operator A process bleeder valve is standard on holders
to allow depressurization of the holder after closure of the
process isolation valve The ability to fully retract the rod/shaft
out of the pipeline while under pressure allows for pigging
without bringing the line down
The standard Saf-T-Vise STV-HP1 and STV-HP3 models require
the use of an insertion tool
Specifications
Saf-T-Vise STV-HP1 and STV-HP3
Insertable Tool Holder Specifications
ƒ
Maximum allowable operating pressure (MAP) of 5,000 psi
at 100°F (344 7 bar at 38°C) for the STV-HP1 and 7,500 psi
at 100°F (517 1 bar at 38°C) for the STV-HP3 NOTE: Flanged units have a MAP based on the class of flange used for
process line connection and can be rated to a lower MAP
ƒ
The Teflon® seal has a process temperature range of 0°F to 450°F (-18°C to 232°C)
ƒ
The graphoil seal has a process temperature range of 0°F to 1000°F (-18°C to 538°C)
ƒ
Holder Type: Corrosion Coupon, Atomizer, Sample or Injection Quill
ƒ
316/316L SS is the standard material for process wetted components
ƒ
Connection Style: Flanged or NPT Threaded connection
ƒ Standard NPT Connection Sizes: 1/2", 3/4", 1", 1-1/2", or 2"
ƒ
Flange Connection Sizes: Customer specified (In flanged units, holder is threaded and welded to flange )
Installation and Operation
The Saf-T-Vise STV-HP1 and STV HP3 tool holders attach to a pipeline isolation valve by means of either a flanged or
NPT threaded connection A holder is installed or removed during the operation and maintenance of the equipment as
detailed in the Saf-T-Vise STV-T Series Insertion Tools manual
Upper body
assembly
Lower body
assembly
Upper body
set screw
Bleeder
valve
NPT pipeline
connection
Collet
lock bolt
Safety cap
Indicator
button
Welded stop
Rod/shaft
Safety cap
NPT threads