Sentry Saf-T-Vise STV-LP1 Instruction manual

Original Instructions
Installation, Operation
&Maintenance Manual
Saf-T-Vise STV-LP1 & Saf-T-Vise STV-LP2
Insertable Tool Holders
S-CM-IOM-00505-2 3-22

2 Sentry Equipment Corp
Do not install, maintain, or operate this equipment without reading, understanding, and following the
appropriate Sentry Equipment Corp instructions. Otherwise, injury, damage, or both may result.
Copyright
© 2022 by Sentry Equipment Corp. All rights reserved. All product and company names are property of their respective
owners. This document contains proprietary information. No part of this document may be photocopied or reproduced
without the prior written consent of Sentry Equipment Corp.
Limit of Liability
Sentry Equipment Corp, its employees, agents, and the authors and contributors to this document specically disclaim
all liabilities and warranties, express or implied (including warranties of merchantability and tness for a particular
purpose), for the accuracy, currency, completeness, and/or reliability of the information contained herein and/or for the
tness for any particular use and/or for the performance of any material and/or equipment selected in whole or part
with the user of/or in reliance upon information contained herein. Selection of materials and/or equipment is at the
sole risk of the user of this publication.
Note
The information contained in this document is subject to change without notice.

Saf-T-Vise STV-LP1 & Saf-T-Vise STV-LP2 3
Table of Contents
Safety Information .........................................4
General Safety Precautions .................................5
General Description ........................................6
Specications ..............................................6
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Operation..................................................7
Insertion ............................................................7
Retraction ...........................................................9
Maintenance ...............................................10
Inspecting the Hand Insertion Knob..................................10
Prepping the Tool Holder for Reinstallation ...........................10
Cleaning the Rod/Probe Shaft ........................................10
Changing a Rod/Shaft and Replacing a Seal ..........................11
Changing a Coupon/Checking Probe End ............................14
Troubleshooting ...........................................14
Leaks................................................................14
Locking Collet .......................................................15
Standard Warranty .........................................16
Customer Support..........................................17

4 Sentry Equipment Corp
Safety Information
Please read the entire manual before attempting to unpack, set up, or operate this product. Pay careful attention to all
Warnings, Cautions, and Notes. Failure to do so could result in serious personal injury and/or equipment damage.
Use of Hazard Information
If multiple hazards exist, the signal word corresponding to the greatest hazard shall be used.
Denitions
DANGER indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION, used with the safety alert symbol, indicates a
hazardous situation which, if not avoided, could result in
minor or moderate injury.
NOTICE is used to address practices not related to personal
injury.
ÂNOTE
Information that requires special emphasis.
ÂTIP
Alternate techniques or clarifying information.
SHALL:
This word is understood to be mandatory.
SHOULD:
This word is understood to be advisory.

Saf-T-Vise STV-LP1 & Saf-T-Vise STV-LP2 5
General Safety Precautions
Product Selection, Installation, and Use
Improper selection, installation, or use can cause personal injury or property damage. It is solely the responsibility of users,
through their own analysis and testing, to select products suitable for their specic application requirements, ensure they are
properly maintained, and limit their use to their intended purpose.
Follow proper local, state, and federal regulations for proper installation and operational requirements.
Always use caution and common sense when working with any chemical. Read the product label and Material Safety Data
Sheets (MSDS) carefully and follow the instructions exactly.
Potential Equipment Hazards
Hot surfaces! This equipment may have very hot surfaces. If an operator contacts a hot surface, injury may occur. Use
protective clothing to prevent injury. If other equipment comes in contact with a hot surface, damage to the equipment may
occur. Ensure the area around this equipment is kept clear to prevent damage from occurring.
High pressures! This equipment may contain uids at very high pressures. Prior to installing, removing or maintaining this
equipment, ensure that the equipment is isolated from all connecting piping, the equipment is depressurized, the contents
have been drained, and the equipment is cool.

6 Sentry Equipment Corp
General Description
The Sentry® Saf-T-Vise STV-LP1 and Saf-T-Vise STV-LP2 Series 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 specic 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-LP1 and Saf-T-Vise STV-LP2 Series models are designed to be inserted and retracted by
hand, without the need for a separate tool. However, the Saf-T-Vise STV-LP2 series holder comes standard with tool
threads, allowing the use of a tool for the retraction of a bent or stuck rod.
Specications
STV-LP1 STV-LP2
weight 4 to 7 lb
1.8 to 3.2 kg
10 to 35 lb
4.5 to 16 kg
materials 316 SS 316 SS;
other alloys available
insertion pressure
(MOP)
750 psi at 100°F
52 bar at 38°C
1/4 in: 1000 psi at 100°F
69 bar at 38°C
3/8 in: 750 psi at 100°F
52 bar at 38°C
1/2 in: 420 psi at 100°F
29 bar at 38°C
pressure rating
(MAP)
2000 psi at 100°F
138 bar at 38°C
4000 psi at 100°F
275 bar at 38°C
temperature rating
min/max (seals)
PTFE:
0°F / 450°F
-18°C / 232°C
PTFE: 0°F / 450°F
-18°C / 232°C
graphoil: 0°F / 1000°F
-18°C / 538°C
process connection 1 in NPT ½, ¾, 1, 1½ or 2inNPT
or ange
insertion depth 11, 17, 23, or 29 in
28, 43, 58, or 74 cm
up to 6 ft
up to 1.8 m
rod/shaft OD 3/8 in 1/4, 3/8 or 1/2 in
holder types corrosion coupon, atomizer,
sample or injection quill
Installation
The Saf-T-Vise STV-LP1 and Saf-T-Vise STV-LP2 tool holders attach to a pipeline isolation valve by means of either a
anged or NPT threaded connection. A holder is installed or removed during the operation and maintenance of the
equipment as detailed in the following sections.
Welded Stop
Rod/shaft
Lower body
assembly
Upper body
assembly
Collet
lock bolt
Manual
insertion knob
Safety
chain
Upper body
set screw
Bleeder
valve
NPT pipeline
connection
PDF Created on 7/28/2015 1:25:34 PM

Saf-T-Vise STV-LP1 & Saf-T-Vise STV-LP2 7
Operation
The Saf-T-Vise STV-LP1 and Saf-T-Vise STV-LP2 tool holders are hand insertable and retractable and do not require a
separate insertion and retraction tool.
Read instructions thoroughly before installing or using equipment. Contact your representative or factory customer service if
you have any questions. Failure to follow these instructions could result in serious injury or death.
Maintain a rm grip on the hand knob throughout the hand insertion & retraction procedures, and keep body away from the
travel path of the rod/shaft. An unsecured rod/shaft could move outwards forcefully, causing serious injury or death.
Tools needed
tape measure
permanent marker
12" adjustable wrench
anti-seize lubricant
torque wrench
Teon tape or paste
Insertion
1. Close and lock the process isolation valve to prevent incidental
opening while installing the unit.
2. Determine desired insertion depth.
a. Measure from the top of pipeline isolation valve to the desired
zone within the process.
ÂTIP
Tool compensation: Coupons are generally located ¼" from the bottom of the
process line, atomizers are located in the upper 1/3 of the line, and quills are
placed in the middle 1/3 of the process line.
b. Record measurement for use in step 3.
3. Mark desired insertion depth on rod/shaft:
a. Loosen the locking collet bolt on the holder and insert the rod/shaft to
the fully inserted position.
b. Retract the rod/shaft until the desired insertion depth is achieved
(reference recorded measurement from step 2). Desired insertion depth is
measured from the tip of the rod, compensating for attachment (see Tip),
to the bottom thread or ange of the body assembly.
c. Mark the rod/shaft with a permanent marker just above the locking
collet (above the NPT high pressure insertion tool/safety cap connecting
threads).
Locking Collet Bolt
Bleeder Valve
Safety Chain
Chain Holder

8 Sentry Equipment Corp
4. Secure holder to process isolation valve connection.
a. Retract the marked rod/shaft completely into the holder and tighten the locking collet bolt to secure the rod/
shaft in the holder.
b. Apply Teon tape or paste to the process isolation valve/holder connection
c. Secure the holder to the isolation valve.
d. Tighten the locking collet bolt to 35 ft-lb (47.45 Nm). This torque will hold a rod/shaft securely up to the design
pressure of the unit.
e. Make sure that the bleeder valve is closed completely.
5. Insert rod/shaft into process.
a. Slowly open the process isolation valve. Check for leaks.
ÂNOTE
If graphoil seal leaks:
a. Close isolation valve.
b. Slowly open bleeder valve.
c. Loosen set screw that secures upper body to lower body.
d. Tighten upper body onto lower body; re-tighten set screw.
e. Close bleeder valve.
f. Resume installation.
ÂNOTE continued
If Teon seal leaks:
Close isolation valve, relieve pressure with bleeder valve, and contact your representative or factory customer service.
b. While holding the hand knob rmly, loosen the locking collet bolt.
c. Insert the rod/shaft to the desired depth (use the permanent mark made in step 3 as a reference).
d. Tighten the locking collet bolt to 35 ft-lb (47.45 Nm). This torque will hold a rod/shaft securely up to the design
pressure of the unit.
6. Install safety chain through the chain holder; do not leave any slack in the chain.

Saf-T-Vise STV-LP1 & Saf-T-Vise STV-LP2 9
Retraction
Maintain a rm grip on the hand knob throughout the hand retraction procedure, and keep body away from the travel path
of the rod/shaft. An unsecured rod/shaft could move outwards forcefully, causing serious injury or death.
1. Remove safety chain.
a. While holding the hand knob rmly, loosen the locking collet bolt.
b. Push the tool in slightly and remove the chain.
2. Retract rod/shaft from pipeline.
a. Retract the rod/shaft completely into the holder.
b. Re-tighten the locking collet bolt to 35 ft-lb (47.45 Nm).
3. Slowly close the process isolation valve.
ÂNOTE
If the process isolation valve has diculty closing, make sure that the rod/shaft
is completely retracted past the isolation valve.
4. Open the bleeder valve to relieve any trapped pressure.
Support the rod/shaft during removal from the process isolation valve to prevent bending.
5. Remove the holder from the process isolation valve.
Locking Collet Bolt
Safety Chain
Chain Holder

10 Sentry Equipment Corp
Maintenance
ÂNOTE
All maintenance procedures assume the insertable tool holder has been properly removed from the line. See “”section for
instructions.
Inspecting the Hand Insertion Knob
If the hand insertion knob is brittle or missing, contact the factory to order a replacement. Note the unit’s thread size to
ensure a correct replacement is ordered.
Prepping the Tool Holder for Reinstallation
After each use the tool holder threads should be checked and cleaned.
Tools needed
Clean rag
Pick or small screwdriver
Teon tape or paste
Anti-seize lubricant
1. Use a small pick or screwdriver to remove Teon tape from the threads of the holder and the isolation valve
connection threads.
2. After tape and debris are removed, wipe down the threads with a clean rag.
3. Reapply Teon tape and anti-seize lubricant to the holder threads.
Cleaning the Rod/Probe Shaft
The rod/probe shaft should be cleaned each time the tool holder is removed from the line. This helps prevent buildup
on the rod/shaft and damage to the seal.
Tools needed
Clean rag
Cleaner/solvent
320 grit or ner sand paper
Medium adjustable wrench
Molykote 55 lubricant or other silicone/lithium lubricant
1. Remove the holder from the line.
2. Loosen the locking collet bolt and slide the rod/shaft to the fully inserted position (until the stop hits the top of the
body). Leave the locking collet loose so the rod/shaft can be spun inside the body.
3. Clean the exposed rod/shaft with 320 grit or ner sand paper using a rotational motion.
4. When the exposed rod/shaft is cleaned of external debris, wipe the rod/shaft with a clean rag and solvent to remove
any leftover debris.
5. Slide the rod/shaft to the fully retracted position and repeat the steps above to clean the remaining rod/shaft.