PIG-SIG v Instruction Manual 5-07

8/20/2019 PIG-SIG v Instruction Manual 5-07

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TDW Pub No. 00-3795-0384

Revised April 2007

PIG-SIG

V

Scraper Passage Indicator Installation and Operation and Instructions


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© Copyright 2007

All rights reserved

T.D. Williamson, Inc.

NOTICE

Any operation involving work on pipe containing liquids or

gases under pressure is potentially hazardous. It is necessary,

therefore, that correct procedures be followed in the use of

this equipment to maintain a safe working environment.

No person should use this equipment who is not fully trained

in the procedures stated in this manual, and who is not fullyaware of the potential hazards connected with work on pipe

containing liquids or gases under pressure.

The purchaser of this equipment is responsible for the manner

in which this equipment is used and the training and compe-

tence of the operators.

Should any difficulty arise at any time in the use of this

equipment, please contact TDW immediately.

For Parts and Service:

10727 E. 55th Pl.

Tulsa, OK 74146

In the U.S. toll free 800-571-7447

Phone (918) 447-5100

Fax (918) 664-7091

E-mail: [email protected]

Visit TDW's Website at

www.tdwilliamson.com

™ Trademark of T.D. Williamson, Inc. in the UnitedStates and foreign countries.

® Registered trademark of T.D. Williamson, Inc., in theUnited States and foreign countries.

Magnalube® is a Registered trademark of Saunders En-terprises, Inc

Magnalube G™ is a Trademark of the Dupont Corp.

Dow Corning® is a Registered trademark of DowCorning


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Table of Contents

Title Page

Section I: Introduction

1.0 Purpose 1

2.0 Description 1

3.0 Safety 4

Section II: Installation on a Pipeline Under Pressure

1.0 Nipple Installation 7

2.0 Installing the Plug 93.0 Recovering the Plug 16

Section III: Installation on a Pipeline not Under Pressure

1.0 Introduction 19

2.0 Installation 19

Section IV: Maintenance 23

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TDW Pub No. 00-3795-0384

April 2007

Installation and Operation of

TDW PIG-SIG

V Scraper Passage Indicator

Section I: Introduction

1.0 Purpose

The purpose of this manual is to

provide instructions for the instal-

lation, operation and preventive

maintenance of the TDW PIG-

SIG® V Scraper Passage Indica-

tor:

• on a plug assembly already

set in a pipeline.

• on a line under pressure;

•

on a line not under pressure.

2.0 Description

The TDW Scraper Passage Indi-

cator (PIG-SIG V) is a device that

is installed on a pipeline to detect

the passage of a pig or sphere.

The PIG-SIG V indicator has atrigger that extends into the pipe-

line through a welded fitting that

has been tapped. When a pig

passes, the trigger is tripped, acti-

vating the signaling mechanism.

Signaling mechanisms available

include a flag indicator, electricalindicator, and combination flag

and electrical indicator. PIG-SIG

V indicators are interchangeable

with all PIG-SIG indicators now

in the field.

This makes it possible to use

these units as conversion kits as

well as complete PIG-SIG Indica-

tors.

The PIG-SIG V indicator isweatherproof and corrosion resis-

tant. All parts are manufactured

from Stainless Steel. The flag

indicator offers high visibility.

The PIG-SIG Plug Assembly can

be installed on or removed from a

pressured pipeline using a TDWT-101 series Drilling Machine

and accessories. In some cases, a

T-101 XL drilling machine may

be required. This manual ad-

dresses the T-101b and T-101b

XL.

The PIG-SIG V indicator is avail-able in various combinations of

operation, indication and materi-

als of construction, depending on

piping requirements, including:

• All PIG-SIG V units are

omni-directional

•

Flag Indicator with man-ual reset flag

• Electrical Indicator with

auto reset (to be available

soon)

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• Combination electrical

auto reset with manual

reset flag indicator (to be

available soon)

• Because of stainless steel

construction, any model is

suitable for environmentally

harsh conditions.

1. Flag Assembly

2. Plug Assembly

3. Nipple

4. Teflon Lubricant

5. Lubricant

2

31

4 5

Figure 1. PIG-SIG V

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Shown in Figure 1 are the com-

ponents of the manual reset flag

indicator model. Within each

type, the PIG-SIG V indicator is

available in a number of varia-tions, including such options as

O-ring material and material used

in plug construction. A number of

extension lengths up to 9 feet are

available to elevate the indicator.

The PIG-SIG V indicator can be

installed on a line under pressure,

without taking the line out of ser-

vice, using the TDW T-101, T-

101a or T-101b Drilling Ma-chines. A special plug holder with

a 1-inch drive will be required to

install the PIG SIG V indicator.

2.1 Specifications

A. THREAD-O-RING™ Nipple Material

Figure 2. THREAD-O-RING™ Nipple

Material Specification:Size & Grade: 2 NPS XXS, ASTM A 333 Grade 6 seamless steel pipe.

Tensile Requirements: 35,000 psi SMYS – 60,000 psi SMYS

Impact Requirements: 13 ft-lbs min Avg. 3 Specimens

10 ft-lbs min One Specimen Only

Impact Temperature: -50 º F

Chemical Require-

ments:

Composition Percentage:

Carbon: 0.30 max; Manganese: 0.29-1.06; Phosphorus:

0.025 max; Sulfur: 0.025 max; Silicon: 0.10 min

Test Report: Certified test reports furnished per ASTM A 530

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2.2 Pressure-Temperature Ratings

Pressure-Temperature Ratings for

PIG-SIG V Scraper Passage Indicator

THREAD-O-RING™

Nipple

(Does not include allowance for corrosion.)Pressures are in pounds per square inch, gauge (psig)

Piping Code

B31.3 B31.4 B31.8

Temp.

F

F=.72 F=.72 F=.60 F=.50 F=.40

-50

-20 to

250

3743 3743 3120 2600 2080

300 3159 3620 3017 2514 2011

350 3493 2911 2425 1940

400 3369 2808 2340 1872

450 3072 3246 2246 1872 1497

500 2985

Note: O-Ring material selection must be suitable for service fluids and

temperature requirements.

3.0 Safety

3.1 General

Make sure the safety features and

operating procedures of the drill-

ing machine are understood. Do

not attempt to make a tap or set a

PIG-SIG plug assembly withouthaving a complete understanding

of the drilling machine and of the

precautions of working on pres-

surized lines.

3.2 Protective Clothing

Protective clothing is recom-

mended whenever workingaround machinery. Suggestions

are: hard hat, gloves, safety gog-

gles, safety shoes, garments to

cover exposed areas of skin, and

the appropriate breathing appara-

tus when the potential for toxic

atmosphere exists.

3.3 Warnings and Cautions

The purpose of Warnings and

Cautions in this manual is to call

the operator’s attention to possi-

ble danger of injury to personneland/or property damage to equip-

ment and deserves careful atten-

tion and understanding.

A. WARNING: Indicates a po-

tentially hazardous situation

which, if not avoided, could

result in death or serious in-

jury and damage to equip-

ment.

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B. CAUTION : Indicates a poten-

tially hazardous situation

which, if not avoided, may re-

sult in personal injury and

damage to equipment. It mayalso be used to alert against

unsafe practices.

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Section II: Installation on a Pipeline Under Pressure

1.0 Nipple Installation

1.1 Tapping Requirements

A. A THREAD-O-RING nipple

can be welded to the pipeline

then tapped through, using a

T-101 Drilling Machine and a

1-7/16-inch drill.

CAUTION: The PIG-SIG plug as-

sembly can be damaged, and

may not operate properly, ifthe THREAD-O-RING nipple

is not installed correctly, or

the opening in the pipe is too

small.

B. The nipple must be welded so

that it is on the top centerline

of the pipe and perpendicular

to it.

1.2 Welding Instructions

A. Weld procedures and welders

should be qualified to current

API 1104, API 1107 or ASME

Section IX.

B. Low hydrogen electrodeAWS-E-XX18 is recom-

mended for use with TDW fit-

tings. The use of low-

hydrogen electrodes is specifi-

cally recommended by certain

welding specialists when the

nipple is to be welded to pipe-

lines operating in a high mois-

ture area and/or a temperature

below 50º F. Use of AWS-E-

XX18 electrodes helps avoid

cracks that can result from

stress produced during solidi-

fication of weld metal and

help avoid hydrogen-induced

cracking. Consult the manu-

facturers of such electrodes for

proper care and use.

C. Clean all weld edges thor-

oughly. Remove all paint, dirt,

rust, oil, etc., from the weld

areas.

D. Position the nipple so that it is

on the top centerline of the

pipe and perpendicular to the

surface of the pipe.

E. If moisture is on the line, dry

the area where the nipple will

be located to remove the mois-

ture before installation isstarted. This is important in a

high-moisture area.

F. For proper weld penetration a

root gap should be introduced

between the weld-end of the

nipple and surface of the pipe.

A 3/32-inch (0.094) root gapis recommended. DO NOT

WELD INSIDE of the nipple

and be careful to prevent ex-

cessive weld penetration in-

side the nipple to help avoid

tapping problems. The length

of the nipple varies according

to pipe wall thickness. For in-stallation on 6-inch and larger

pipe, the sum of the nipple

length, root gap, and pipe wall

thickness should be 4-1/4- to

4-1/2-inches. If that combina-

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tion of values exceeds 4-1/2-

inches, grind some off the

weld-end of the nipple, obtain

a shorter nipple, or decrease

the amount of root gap.WARNING: Follow estab-

lished welding stan-

dards when welding

the nipple onto the

line. Improper weld-

ing can cause rupture

of the pipeline during

or after welding.G. Upon completion of welding,

remove the cap from the nip-

ple.

H. Clean internal and external

threads of the nipple.

I. Inspect the welded area inside

the nipple. Remove any loose

weld spatter or bead.

J. The weld area should be al-

lowed to cool before tapping

the line. Normally, it will cool

sufficiently while the tapping

equipment is being prepared.

1.3 Tapping the Line

A. Apply thread sealant to the

external pipe thread of nipple

and thread tapping valve onto

nipple. The valve must be

rated to at least line pressure,

and must have a minimum

through-bore of 2-1/16-inch to permit passage of the TDW

PIG-SIG plug assembly.

CAUTION: Do not over- tighten the

valve. Over-tightening can

swage the nipple diameter too

small to install the PIG-SIG

plug assembly

B. After the valve has been in-

stalled, check the nipple forswaging (distortion) caused by

possible over-tightening of the

valve. Using a special

THREAD-O-RING™ gauging

tool, insert a dummy plug

without O-Ring through the

valve and into the fitting. If

the plug threads into the fit-ting, the nipple has not been

distorted. If it does not turn,

the fitting is distorted and will

not accept the threads of the

PIG-SIG plug.

C. When taking tapping meas-

urements, as prescribed in thedrilling machine manual, an-

other measurement is required,

which will be used in setting

the plug. Measure from the top

of the valve to the top of the

PIG-SIG nipple, as shown in

Figure 3. Label this measure-

ment “E” and retain for usewhen setting the PIG-SIG

plug.

Figure 3. Measurement E

D. Prepare T-101b drilling ma-

chine with a 1-7/16th inch

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drill, install and tap through

pipe, following instructions in

drilling machine manual.

E. Close tapping valve, bleed

pressure and remove drillingmachine.

WARNING: Vent pressure bleeder

valve away from work

area and personnel.

Stand clear of vent

when bleeder valve is

opened. Otherwise,

personal injury may

result from blowing

material.

2.0 Installing the Plug

Installation of the plug is the

same for all PIG-SIG V types.

When installing an indicator as-sembly on a plug assembly al-

ready installed in a line, begin

with paragraph 4.3.

2.1 Initial Test

The PIG-SIG indicator will be

shipped partially assembled, as

shown in Figure 1.

A. Before installation, assemble

the indicator assembly cap

onto the plug assembly. Push

the cap downward until fully

seated.

B. Install the three set screws.

Tighten to 1.5 ft./lbs.

C. Set the flag and operate the

trigger a couple of times, as

shown in Figure 4, to make

sure the unit functions cor-

rectly.

CAUTION: Make sure hands and

fingers are clear of poten-

tial pinch points around

the flag when tripping orresetting the unit.

Figure 4. Check PIG-SIG Operation

D. After the test, remove the set

screws and pull cap off the

plug assembly.

2.2 Prepare Drilling Machine

A. Apply thread sealant to

adapter threads and threadadapter on to the drilling ma-

chine, as shown in Figure 5.

Figure 5. Install Valve Adapter

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B. Extend boring bar until the

retainer spring can be re-

moved.

C. Insert plug holder into boring

bar and install retainer spring.See Figure 6.

Figure 6. Insert Plug Holder

D. Install plug assembly on plug

holder. Balls in plug holder

must seat into cut-out grooves

in wall of the plug well. The plug holder must not be posi-

tioned against bottom of the

plug well. When properly po-

sitioned, there will be end play

between the plug holder and

plug. Refer to Figure 7.

Figure 7. Install PIG-SIG Plug

E. Lubricate Plug Assembly O-Ring and threads with Mag-

nalube® G™, as shown in

Figure 8.

Figure 8. Lubricate Plug and O-Ring

F. Fully retract plug assemblyinto the adapter. See Figure 9.

Make sure zero is visible on

the body tube.

Figure 9. Retract Plug Assembly

2.3 Compute Plug Setting

Distance

It is important that the distance

required to completely set the

plug be known. Measurements

are taken at this time to determine

that distance and are shown in

Figure 10.

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Figure10. Measurements

A. Measure the distance from the

adapter face to the bottom

plug thread, as shown in Fig-

ure 11.

Figure 11. Take Measurement

B. Mark this measurement on theoutside of the adapter as

shown in Figure 12. Meas-

urement B, the distance the

plug must travel to the top of

the valve, will be computed

using this mark when the drill-

ing machine is attached to the

valve.

Figure 12. Mark Measurement on

Adapter

C. Measurement E (see Figure 3),

the distance from the valve

face to the top of the PIG-SIGnipple, was taken prior to

making the tap.

D. Measurement K, a constant

7/8-inches for all PIG-SIG

models, is the distance from

the top of the PIG-SIG nipple

to the point where the plug iscompletely threaded into the

nipple.

E. Apply thread compound to the

external threads of adapter and

install drilling machine on tap-

ping valve, as shown in Figure

13.

Figure 13. Install Drilling Machine

F. Measure the distance from the

valve face to the mark made on

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the adapter. This is Measurement

B. See Figure 14.

Figure 14. Measurement B

G. The combination of measure-ments B and E is Lower-in-

Distance, the distance required

to lower the plug to the top of

the nipple. Mark this meas-

urement on the body tube as

shown in Figure 15.

Figure 15. Mark Boring bar

H. Place another mark 7/8 inches

above this first mark (Meas-

urement K). When the body

tube reaches this mark, the

plug should be set.

CAUTION: The combination ofmeasurements B, E and K

must not exceed 18 inches,

the maximum travel distance

of the T-101b Drilling Ma-

chine, or 28 inches if using

the T-101 XL. If setting dis-

tance exceeds these meas-

urements, a different tapping

machine, such as the TDW

TM 360b, will be required.

2.4 Setting the Plug A. Install bleeder valve on drill-

ing machine and leave in the

open position (Figure 16).

Figure 16. Install Bleeder Valve

B. Crack tapping valve, bleedingair off through bleeder valve.

When air has bled, close

bleeder valve.


valve away from work

area and personnel.

Stand clear of vent

when bleeder valve isopened. Otherwise,

personal injury may

result from blowing

material.

C. Open tapping valve fully.

D. Lower plug just short of the

first mark on the boring bar.The plug is just above the fit-

ting

E. Install cap on T-101 drilling

machine. See Figure 17. This

locks the feed tube and boring

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bar together, permitting the

latter to turn as it is lowered.

Figure 17. Lock Boring Bar

F. Turn drilling machine ratchet

handle clockwise to lower the

plug. See Figure 18. Turn until

plug becomes tight in PIG-

SIG nipple. Eight complete

turns equal one inch of travel.

Figure 18. Lower the Plug

G. Check second mark on body

tube to make sure plug setting

distance, as computed earlier,

has been reached.

H. Open bleeder valve. If pres-

sure bleeds off, plug is set. If

pressure does not bleed off,

plug is not properly set. Re-

check measurements to make

sure full travel distance has

been reached. If full travel dis-

tance has been reached and pressure does not bleed off,

pressure is probably leaking

around O-Ring. Close bleeder

valve and retract plug, follow-

ing instructions in paragraph

3.3. Remove and check O-

Ring.

I. If pressure does bleed down,the plug is set. Remove cap

from the top of the drilling

machine. See Figure 17.

J. Fully retract boring bar by turn-

ing feed tube counterclock-

wise. See Figure 19.

CAUTION: Do not permit boring

bar to turn, or plug will un-

thread.

Figure 19. Retract Boring Bar

K. Remove drilling machine and

tapping valve.

L. Note that the top of the plug

assembly extends 1.38 inches

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above the nipple, as shown in

Figure 20. This is normal.

Figure 20. Plug is Installed

2.5 Indicator Installation

A. Locate the three set screws (in

a separate bag) that are used in

the flag indicator body, as

shown in Figure 21.

Figure 21. Flag Indicator and Set

Screws

B. Apply a bead of Dow Corn-

ing® 111 Valve Lubricant

around the housing O-Ring, as

shown in Figure 22.

Figure 22. Apply Lubricant to O-Ring

C. Place indicator over top of the

plug and push down until fully

seated. The indicator cap will

completely cover the external

threads on the nipple. Turn the

indicator to obtain desired flag

orientation as shown in Figure

23.

Figure 23. Install Flag Indicator

C. Install the three nylon-tipped

set screws, securing the flag

indicator in place. Tighten

only to about 1.5 ft./lbs. See

Figure 24.

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Figure 24. Install Set Screws

D. Push the flag down until it

locks in the horizontal posi-

tion, as shown in Figure 37.

E. The PIG SIG V is now ready

for operation

2.6 Installing an Extension

If the indicator is installed on a 1-

to-9 foot extension, it is installed

in the same manner as just theindicator itself. Figure 25 shows

an indicator-extension combina-

tion.

Figure 25. Indicator on Extension

A. If an indicator on an extensionis used, position the provided

strip of EPDM rubber gasket

to cover the three set screws,

and secure with the provided

316 stainless steel hose clamp,

as shown in Figure 26, before

burial.

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Figure 26. Secure Extension Base

3.0 Recovering the Plug

3.1 Preparations

A. Remove the three set screwsand remove flag indicator

from the plug by pulling

straight up. Do not turn the

cap during the removal proc-

ess.

B. Install valve on nipple. Make

sure valve has a minimum bore clearance of 2-1/16th

inch. Leave valve fully open.

C. Install plug holder on drilling

machine. See Figure 27. Re-

tract boring bar fully, making

sure zero is visible on the

body tube.

Figure 27. Install Plug Holder

D. Apply thread compound to

adapter threads and install on

drilling machine. Make sure

the adapter is the proper one

for working with a PIG-SIG

assembly and that it is long

enough to house the full

length of the plug and triggerwhen fully retracted.

3.2 Take Required Measure-

ments

A. Measure from the top of the

valve to the bottom of the 1-

inch drive hole in the plug.

The bottom of the hole is 1.06inches below the top of the

plug. Label this Measurement

N. See Figures 28 and 31.

Figure 28. Measurement N

B. Measure from the valve

adapter face to the bottom ofthe plugholder. See Figures 29

and 31.

Figure 29. Take Measurement

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C. Mark this measurement on the

outside of the adapter, as shown

in Figure 30. Measurement M, the

distance from the plug holder to

the top of the valve, will be computed after the drilling machine is

installed, using this mark.

Figure 30. Mark Measurement on

Adapter

D. Apply thread compound to the

lower threads of the adapter

and install drilling machine onthe valve.

E. Measure the distance from the

top of the valve to the mark

made on the adapter. This is

Measurement M.

F. The sum of Measurements M

and N is the distance requiredto lower the plugholder and

seat it in the recess of the plug.

See Figure 31. Mark this

measurement on the body

tube.

N

Figure 31. Measurements

3.3 Removing the Plug

A. Install bleeder valve on the

drilling machine and leave in

the open position.

B. Pressure test the drilling ma-

chine-adapter make-up to the

valve. This can be done

through the bleeder valve.

WARNING: Do not exceed pipe-

line pressure when

conducting pressure

test.

C. Lower the boring bar by turn-

ing the feed tube clockwise

until the plugholder reaches

the top of the plug. Eight revo-

lutions equal one inch of

travel. Confirm that the dis-

tance lowered should bewithin 7/8 inch of the total

lower-in distance, as marked

on the body tube.

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D. Lower the boring bar slightly

while turning the ratchet han-

dle until the plugholder aligns

with the hex drive hole in the

plug.

G. Turn the ratchet handle slowly

counterclockwise making sure

the feed tube turns at the same

rate. Turn about 16 turns to

remove the plug from the nipple.E. When aligned, continue lower-

ing boring bar until plugholder

bottoms out in the plug. This

should be about eight revolu-

tions of the feed tube. Confirm

that the lower-in distance has

been reached by checking the

mark on the body tube.

H. As the plug O-Ring seal

breaks, air will bleed through

bleeder valve. When all the air

is bled, close bleeder valve.


valve away from workarea and personnel.

Stand clear of vent

when bleeder valve is

opened. Otherwise,

personal injury may

result from blowing

material.

F. Place the cap on top of the

drilling machine, locking the

feed tube and boring bar to-

gether. See Figure 32.

I. Retract plug fully into valveadapter.

J. Close tapping valve.

K. Open bleeder valve, bleeding

off all pressure.

L. Remove drilling machine and

adapter from tapping valve.Figure 32. Install Locking Cap

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Section III: Installation on a Pipeline

not under Pressure

1.0 Introduction

This section provides instructionsfor the installation of the TDW

PIG-SIG® V Scraper Passage In-

dicator in pipelines or pig traps

not under pressure and where

there is no product flow.

A THREAD-O-RING nipple may

be installed over a pre-cut open-ing in the pipe, or the opening

may be cut using a drilling ma-

chine with a 1-7/16-inch drill af-

ter the nipple has been welded to

the pipe. A pre-cut opening must

be 1-7/16- to 1-1/2-inch diameter

through the pipe wall, and the

bore of the nipple must be coaxialwith the hole cut in the pipe to

within 1/64-inch. No part of a

THREAD-O-RING nipple may

extend inside the pipe for rein-

forcement or for any other pur-

pose. If additional reinforcement

is required, THREAD-O-RING

nipples can be provided for at-

tachment to various types of inte-

grally reinforced connections.

If this PIG-SIG V indicator is

replacing a PIG-SIG IV assem-

bly, remove all PIG-SIG IV com-

ponents following the instructions

in TDW Pub. 00-3795-0153, Sec-tion 4.5.

2.0 Installation

The PIG-SIG will be shipped par-

tially assembled, as shown in Fig-

ure 1.

2.1 Initial Test

A. Before installation, assemble

the indicator assembly cap

onto the plug assembly. Push

the cap downward until fully

seated.

B. Install the three set screws.

Tighten to 1.5 ft./lbs.

C. Set the flag and operate the

trigger a couple of times, as

shown in Figure 33, to make

sure the unit functions cor-

rectly.

CAUTION: Make sure hands and

fingers are clear of poten-

tial pinch points around

the flag when tripping or

resetting the unit.

Figure 33. Check PIG-SIG Opera-

tion

D. After the test, remove the set

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screws and pull cap off the

plug assembly.

2.2 Preparation

Since the PIG-SIG V indicatoroperates using magnets, it is vi-

tally important that the internal

threads of the fitting be free from

all chips left from the tap.

A. Using a “bottle” brush, clean

the internal wall and threads

of the fitting thoroughly as

shown in Figure 34.

Figure 34. Clean Internal Threads

B. Spray the internal threads with

a cleaning solvent or light lu-

bricant.

C. Apply a light coating of Mag-

nalube G to the plug body O-Ring and threads. See Figure

35.

Figure 35. Lubricate O-Ring

2.3 Installing the PIG-SIG

Body

A. Insert the plug body into the

fitting and start threads. Be

careful not to cross thread.

B. Use a 1-inch hex wrench or the

PIG-SIG V plug holder and

crescent wrench to tighten, as

shown in Figure 36. The plug

will become more difficult to

thread when the O-Ring enters

the fitting. Tighten until the plug bottoms out.

Figure 36. Tighten Plug Body

C. Note that the top of the plug

assembly extends 1.38 inches

above the nipple when set.This is normal.

2.4 Installing the Indicator

A. Apply a bead of Dow Corning

111 Valve Lubricant around

the housing O-Ring, as shown

in Figure 37.

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Figure 37. Apply Lubricant to O-Ring

B. Place indicator over top of the

plug and push down until fully

seated. The indicator cap will

completely cover the external

threads on the nipple. Turn the

indicator to obtain desired flag

orientation as shown in Figure

38.

Figure 38. Obtain Desired Flag Orien-

tation

C. Install and tighten the three

nylon tipped set screws, pro-

vided in a separate bag, to

lock the indicator in position.Tighten only to about 1.5

ft./lbs. See Figure 39.

Figure 39. Install Set Screws

D. Push the flag down until it

locks in the horizontal posi-

tion, as shown in Figure 40.

Figure 40. Set Flag

E. The PIG SIG V indicator is

now ready for operation.

2.5 Installing an Extension

If the indicator is installed on a 1-

to-9 foot extension, it is installedin the same manner as just the

indicator itself. Figure 41 shows

an indicator-extension combina-

tion.

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A.If an indicator on an extension

is used, position the provided

strip of EPDM rubber gasket

to cover the three set screws,

and secure with the provided316 stainless steel hose clamp,

as shown in Figure 42, before

burial.

Figure 42. Secure Extension Base

Figure 41. Indicator on Extension

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Section IV: Maintenance

1.0 Preventive Mainte-

nance

Once properly set in the line, the

PIG-SIG V indicator is relatively

maintenance free. Routine inspec-

tion of existing PIG-SIG V

Scraper Passage Indicators is im-

portant to continued proper op-

eration. If your PIG-SIG unit isnot working properly (indicating

pig passage) or has worked but is

not working currently, refer to

installation procedures in this in-

struction.

1.1 Flag Operation

Make sure the flag is properly positioned. When looking at the

TDW flag, the flag should be in

the folded down position. See

Figure 43. This is the proper posi-

tion before pig passage. Once the

pig has passed, the flag should be

standing up. The flag will need to

be reset before the next pig pas-

sage.

Figure 43. Set Flag

1.2 Product Leakage

Should there be product seepage

around the flag indicator, there is

a leak around the plug O-Ring.

The PIG-SIG plug should be re-

moved and the O-Ring replaced.

Refer to paragraph 3.0 of Section

II for the proper procedure for

removing plug.

If there is potential for product

contamination (wax, sand, etc.,)

in the trigger housing, the plug

should be removed and the trigger

cavity cleaned in warm soapy

water or a mild solvent that iscompatible with Teflon.

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Product Warranty

1. Products manufactured by T. D. Williamson, Inc., are warranted free from defects inmaterial and workmanship for a period of three (3) years from the date of shipmentfrom the factory. Elastomer products are warranted for one (1) year underproper storage to be free from defects in material and workmanship. The fore-

going warranty does not apply to any items not manufactured by T.D. William-

son, including but not limited, to, electronic devices, switch components,pumps, o-rings, purchase cylinders, etc. These third party parts wil l revert backto suppliers warranty. TDW assumes no liability under this or any other war-

ranty for components not manufactured by TDW. This Warranty applies only toproducts shipped after June 30, 2000.

2. If TDW accepts any claim made under this Warranty, TDW’s liability, if any, shall belimited to, at TDW’s sole option, repair or replacement of the failed part or product, ora refund of the purchase price, less an allowance for services rendered for the prod-uct prior to the Warranty claim. TDW disclaims any and all responsibi lity for spe-cial, consequential or incidental damages arising out of or related to the sale,

use, or inability to use any products covered by this Warranty.

3. Buyer agrees not to return goods for any reason except with the prior written consent

of TDW, which consent, if given, shall specify the terms, conditions and charges upon

which any returns may be made. Materials returned to TDW for Warranty work must

have a Return Material Authorization (RMA) number, and such number must be noted

on the package at the time of shipment. Claims under this Warranty must be made in

writing within ten (10) days of any failure and sent by registered mail to: P. O. Box

3409, Tulsa, Oklahoma 74101. Any failed products or parts must be held for inspec-

tion by TDW or, at TDW’s option, returned to TDW’s factory. Customer shall prepay

shipping charges, and shall pay all duties and taxes, as applicable, for products or

parts returned to TDW for warranty service.

4. This Warranty shall not apply to any product or component which has been repaired

or altered by anyone other than TDW, or has become damaged due to misuse, negli-

gence or casualty, or has been operated or maintained contrary to TDW’s printed in-

structions and warnings.

5. The sole purpose of the exclusive remedy contained in the limited Warranty shall be

to provide repair or replacement of failed products, or to refund the purchase price of

the failed product as explained above in paragraph 2. This exclusive remedy shall not

be deemed to have failed of its essential purpose so long as TDW agrees to repair or

replace the failed product or to refund the purchase price as explained above.

6. All rights, duties, and obligations arising under this limited Warranty shall be governedby the laws of the State of Oklahoma, U.S.A., regardless of conflict of laws provisions.In the event Buyer initiates litigation under this Warranty, Buyer hereby agrees that ju-risdiction for such litigation shall be brought only in the District Court for the County ofTulsa, Oklahoma.

7. TDW reserves the right to make any changes in or improvements on its products

without incurring any liability or obligation to update or change previously sold product

and/or the accessories thereto.

8. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS ORIMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESSFOR PARTICULAR PURPOSE, WHICH ARE EXPRESSLY DISCLAIMED. TDWNEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO MODIFYTHESE TERMS AND CONDITIONS, WARRANT SPECIFIC APPLICATIONS, OR

ASSUME FOR TDW ANY OTHER LIABILITY IN CONNECTION WITH THE SALEOF ANY TDW PRODUCT OTHER THAN AS PROVIDED IN THIS WARRANTY.

PIG-SIG v Instruction Manual 5-07

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