Sentry Saf-T-Vise STV-XH1 Instruction manual

Original Instructions
Installation, Operation
&Maintenance Manual
Saf-T-Vise STV-XH1
Insertable Tool Holders
S-CM-IOM-00605-1 03-22

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-XH1 3
Table of Contents
Safety Information .........................................4
General Safety Precautions .................................5
General Description ........................................6
Specications ..............................................6
STV-XH1 Diagrams...................................................7
Installation and Operation ..................................7
Maintenance ...............................................8
Inspecting the Safety Cap ............................................8
Prepping the Tool Holder for Reinstallation ...........................8
Cleaning the Rod/Probe Shaft ........................................8
Changing a Coupon .................................................10
Troubleshooting ...........................................11
Leaks................................................................11
Locking Collet .......................................................11
Service Parts List ...........................................12
STV-XH1-TF44 Series .................................................12
STV-XH1-TF3KH44 Series.............................................12
STV-XH1 and STV-T4-XH1 ............................................13
Standard Warranty .........................................14
Customer Support..........................................15

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-XH1 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-XH1 Series is an insertable tool holder designed to hold rod-style coupons at pressures up to
10,000 psig [689 barg]. The equipment has two process connection options: an API 2-1/16” 10000# ange or a Ø2.938
bolt circle designed to mate with an Aceco ball valve ange. The API version connects to an API ange of the same size
and pressure class.
Both the lower body and upper body assembly are constructed from a solid piece of bar stock of 410 stainless steel
as standard, with other materials available upon request. The graphite-lled PTFE seal provides excellent chemical
inertness and low friction during insertion/retraction of the coupon holder rod.
The holder is designed with a patented locking collet, which secures the rod 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 out of the pipeline while under pressure allows for pigging
without bringing the line down.
The STV-XH1 series is designed to insert and retract coupon holders with the STV-T4-XH1 insertion/retractor tool (sold
separately).
Specications
Parameter STV-XH1-TF44 STV-XH1-TF3KH44
Weight 15 lbs [6.8 kg] 46 lbs [20.6 kg]
Materials Lower Body and Upper Body Subassembly: 410 Stainless Steel
Seals: Graphite-lled PTFE
Insertion Pressure (MOP) 10000 psi at 100°F
(689 bar at 38°C)
Pressure Rating (MAP)
Temperature Rating Max: 450°F (232°C)
Min: 0°F (-18°C)
Process Connection Flanged with 2.938”B.C. API 2-1/16” 10000 Class Flange
Insertion Depth Up to 132”
Rod OD 1/4” OD
Holder Types Coupon holder (Rod-style only)

Saf-T-Vise STV-XH1 7
Installation
Prior to installing the STV-XH1, ensure that the sealing surfaces are cleaned and free of debris. Then, place the
appropriate seal or ring joint on the mating ange.
With the coupon holder rod inserted through the body, place the STV-XH1 up against the mating ange. Install the
ange bolts, tightening them down in a star pattern.
For the Aceco ange version (STV-XH1-TF44), it is recommended to use the indicated 12-Point ange head cap screws
as these are the only standard screws with a head diameter small enough to not interfere with the lower body.
The API ange version (STV-XH1-TF3KH44) can accommodate hex bolts without interference issues. Insertion and
retraction of the rod under pressure requires use of the retractor tool, the STV-T4-XH1. Information on initial setup can
be found in the Saf-T-Vise STV-T Series Insertion Tools manual.
Operation
This tool is designed to work with the STV-T4-XH1 retraction tool. Details on the insertion and retraction operation of
this product can be found in the IOM for the STV-T series.

8 Sentry Equipment Corp
Maintenance
ÂNOTE
All maintenance procedures assume the Saf-T-Vise STV-XH1 insertable tool holder has been properly removed from the line.
See the Saf-T-Vise STV-T Series Insertion Tools manual for instructions.
Inspecting the Safety Cap
Remove safety cap from holder and ensure the red indicator is still in good condition.
If the indicator is faded, brittle, or missing, return the cap to the factory for indicator repair
Prepping the Tool Holder for Reinstallation
The rod should be cleaned each time the tool holder is removed from the line. This helps prevent buildup on the rod
and damage to the seal.
Tools needed
Clean rag
Cleaner/solvent
320 grit sandpaper or other ner grit paper
Medium crescent wrench
Molykote 55 lubricant or other ne viscosity lubricant
1. Remove the holder from the line.
2. Loosen the locking collet bolt and slide the rod to the fully inserted position (until the stop hits the top of the body).
Leave the locking collet loose so the rod can be spun inside the body.
3. Clean the exposed rod with 320 grit or ner sandpaper using a rotational motion.
4. When the exposed rod is cleaned of external debris, wipe the rod with a clean rag and solvent to remove any
leftover debris.
5. Slide the rod to the fully retracted position and repeat the steps to clean the remaining rod.
6. When the rod is thoroughly clean, wipe the rod with Molykote 55 lubricant or other ne viscosity lubricant.
Cleaning the Rod/Probe Shaft
Tools needed
Medium crescent wrench
Permanent marker
Hex key set
Small pick or screwdriver
Clean rag
New seal set for holder (P/N 6-05514G)
Molykote 55 lubricant or other ne viscosity lubricant
Anti-seize lubricant
320 grit or ner sandpaper
Cleaner/solvent

Saf-T-Vise STV-XH1 9
1. Remove the rod/shaft.
a. With the holder removed from the line, loosen the locking collet and slide the rod to the fully inserted position,
leaving 1” (2.5 cm) between the top of the holder and the adapter lock nut.
b. Tighten the locking collet bolt to 35 ft-lb (47.45 Nm).
c. Remove adapter.
– If using a at coupon, use a permanent marker to mark the rod to show where the orientation arrow points
on the shaft (reference the arrow at the top of the shaft).
– Use a medium crescent wrench to loosen the adapter lock nut.
– Remove both the adapter and the lock nut.
d. Loosen the collet and slide the shaft out of the holder.
2. Separate the upper and lower body of the holder.
a. Use a hex key to loosen (but not completely remove) the small set screw on the upper body.
Make sure the set screw is loose. Failure to loosen the set screw can cause permanent damage to the holder.
b. With the set screw loose, remove the upper body.
ÂNOTE
If the upper body is dicult to remove, stop immediately and make sure that the set screw is loose.
3. Replace the seal.
a. With the upper body removed, use a pick or small screwdriver to gently
pick out the old seal.
b. Clean the seal body of the holder with a clean rag.
c. Insert new seal:
– Coat the outside edges of the PTFE seals with Molykote 55 or
other ne viscosity lubricant by placing a dot of lubricant on your
nger, then slowly rolling your nger around the outside lip of the
seal, completely coating the outside edge.
– Push the PTFE seal straight into the holder body. Make sure to
push in straight to avoid side loading the seal.
4. Reassemble the holder.
a. Apply a small amount of anti-seize lubricant to the lower body threads where the upper body threads on.
Do not tighten the set screw until the upper and lower body of the holder are properly aligned. Tightening the set screw on
the threads will permanently damage the tool.
b. With the set screw loose, remove the upper body.
c. Thread the upper body of the holder onto the lower body.
– Tighten the upper body until it is snug against the lower body
– Tighten the set screw

10 Sentry Equipment Corp
5. Install the rod.
a. Clean the rod before installing.
– If reinstalling a used rod, thoroughly clean the rod with 320 grit or ner sandpaper using a rotational
motion, then wipe the rod with a clean rag and solvent to remove any leftover debris.
– If installing a new rod, wipe the rod down with solvent and a clean rag to remove any debris.
b. Add a small amount of Molykote 55 or other ne lubricant to the rod.
c. Wrap the threaded end of the rod with two (2) complete wraps of Teon tape to protect the seal during rod
insertion.
d. Place the rod into the holder carefully. If the rod cannot pass through the body, make sure the locking collet is
loose and oriented in the correct direction (dot on top). It is sometimes easier to completely remove the locking
collet from the body. Be careful not to lose the collet.
ÂNOTE
Each insertion collet assembly is unique to each retrieval tool. Be sure to keep the removed assembly with the specic tool
retractor.
e. Once the rod is through the body of the holder, reinstall the locking collet (if removed) with the orientation dot
facing the top of the tool, and tighten the collet.
f. Remove the protective Teon tape from the rod.
6. Finish reassembly.
a. Move rod through tool so that the last 1.5 inches are visible out the top of the holder.
b. Tighten the locking collet bolt to 35 ft-lbs (47.45 Nm).
c. Reinstall the adapter and lock nut securely on the rod.
d. The tool is now ready to go back into service.
Changing a Coupon
Tools needed
Clean rag
Cleaner/solvent
320 grit sandpaper or other ne grit paper
Medium crescent wrench
Molykote 55 lubricant or other ne viscosity lubricant
Flat tip screwdriver
1. Remove tool holder from the process pipeline by following instructions for specic insertion tool.
2. Remove old coupon or inspect the rod as needed.
3. Clean the rod.
4. Attach new coupon.
5. Reinstall the tool holder into the pipeline by following instructions for the STV-T4-XH1.