ARGUS MODEL `D` PIG VALVE
Contents
1. 2 10 9 6 SEALANTS 2n2 ncn conn nen nnnn nen nnnn nnn nn nnn nnnacannnnacennenanennenacensensnanennacaneanacannanacennananensenas 10 10 0 TROUBLESHOOTING 222222222222cs2scsscnsscessnensesenensessnensesensscesessscssensesssessesssessesensscesessscesenes 11 11 0 HOW TO ORDER PIG VALVES amp PIG VALVE SERVICE 2 2 2 02nencscscscecenenenensncsnnnenens 12 11 1 ORDERING ARGUS PIG VALVES 12 11 2 ORDERING SERVICE FOR ARGUS PIG VALVES 12 11 3 CONTACT INFORMATION 12 Figure 1 Pig Valve Orientation 4 Figure 2 Argus Pig Valve Model D c w Pressure Alert Valve Integral Equalization Valve 5 Figure 3 Argus Integral Equalization Valve 6 Figure 4 Argus Model D Entry Cap amp Lug Wrench 7 Figure 5 Top View of Argus Model D Pig Valve c w Gear Operator 82. Receiver Orientation 1 Flow Direction From Left to Right _ i Tin ir Tailpiece Stopper Downstream Position Required You Are Here Receiver Orientation 2 Flow Direction From Right to Left U Q Irl Tailpiece Stopper Upstream Position Optional You Are Here FUL Tailpiece Stopper Downstream Position Required You Are Here Figure 1 Pig Valve Orientation 6 3 MOUNTING N Prior to installation and once the flange protectors have been removed the Pig Valve should be inspected inside for foreign materials and outside for signs of tampering or damage All sealing surfaces MUST be visually inspected to ensure they are free of foreign material or damage Allow sufficient workspace around the Pig Valve for accessibility to allow for proper servicing and or removal Ensure that at least one of the accessory ports in the Pig Valve has been equipped with a bleed valve see 2 3 4 _ Pig Valve MUST be installed in the FULLY OPEN position 5 Figure 2 amp Table 1 6 _ All flange studs and nuts must be tightened as recommended by industry standards PIG VALVE MODEL D INSTALLATION OPERATION AND MAINTENANCE MN PV 004 September 2008 Page 4 A SAFETY CHAIN EZ ENTRY CAP LIFTING LUGS EQUALIZATION VALVE pee N PRESSURE ALERT VALVE A
3. INSTALLATION OPERATION AND MAINTENANCE PRESSURE ALERT VALVE 12 15 16 SAFETY CHAIN ENTRY CAP LUG WRENCH PRESSURE WARNING GROOVE Figure 4 Argus Model D Entry Cap amp Lug Wrench Unscrew entry cap so that it clears the threads and swing the cap 180 exposing the pig entry bore WARNING Objects such as pigs or ice slugs can get trapped and or ejected suddenly from the valve Ensure that the entry cap is operated from the side of the cap in front of the valve Minimize direct exposure to the valve while the cap is open Failure to follow these instructions may result in serious injury or fatality CAUTION Itis important to prevent any foreign material from entering the Pig Valve main body cavity when entry cap is removed Ensure the entry cap stays clean and free of damage when removed from Pig Valve Insert pig into Pig Valve Bullet type pigs MUST be inserted nose down Before installing the entry cap check that the sealing face and threads on the entry cap adapter are free of foreign material and burrs Make sure the o ring is not damaged replace as required Install entry cap CAUTION Do NOT over tighten the entry cap as excessive tightening can cause damage to the entry cap and or the adapter Install PAV stem by threading clockwise into body of the PAV CAUTION The PAV valve is designed to be hand tightened do NOT over tighten the PAV valve stem as excessive tightening can cause damage to
4. MN PV 004 September 2008 Page 2 PIG VALVE MODEL D INSTALLATION OPERATION AND MAINTENANCE 5 0 5 1 HANDLING AND STORAGE HANDLING Do not lift the Pig Valve by any part of the gear operator entry cap or any other accessories attached to the Pig Valve Use the attached Lifting Lugs whenever possible Care should be taken to ensure that the Pig Valves are never subjected to impact or dropped during installation storage or handling STORAGE Pig Valves should be stored in a clean dry environment and should be left on shipping pallets or in original packaging prior to installation All flange protectors should remain in place until installation of Pig Valve Pig Valves should be stored in the FULLY OPEN position prevents damage to ball and seats INSTALLATION INLET AND OUTLET PIPING Ensure the Pig Valve connections match see nameplate on Pig Valve the nominal size and pressure rating of the inlet and outlet piping connections e g 10 600 ANSI Class RF flanged connection It is the responsibility of the piping designer to address vibration thermal effects line stresses supports or any other factors that may occur due to field conditions They shall also determine if a by pass line is necessary to prevent pressure build up of flow line during the pigging operation The inlet and outlet piping connections shall be aligned in such a manner to eliminate any additional stresses due to Pig Valve installation
5. ORIENTATION Refer to Figure 1 It is RECOMMENDED to install Argus Pig Valves with the entry cap facing upward to avoid spillage of media during the insertion and removal of pigs Argus standard Pig Valves MUST be installed with the entry cap facing upward with the flow being horizontal Optional entry cap assemblies are available for vertical installation or where it is necessary to install the Pig Valve with the entry cap on its side Pig Valves equipped with the Argus Multi Pig Launcher see TB ML 002 technical bulletin MUST be installed with the Multi Pig Launcher facing upward Flow direction is indicated on the Pig Valve nameplate beside FLOW When marked L lt R flow is from the right side to the left side of Pig Valve When marked L R flow is from the left side to the right side of Pig valve NOTE Pig Valve sender type Sender if equipped with an optional tailpiece stopper MUST be installed with the tailpiece stopper in the upstream tailpiece Pig Valve receiver type Receiver MUST have the tailpiece stopper installed in the downstream tailpiece Consult factory for non standard pig stoppers MN PV 004 September 2008 Page 3 PIG VALVE MODEL D INSTALLATION OPERATION AND MAINTENANCE Sender Orientation 1 Flow Direction From Left to Right Tailpiece Stopper Upstream Position Optional You Are Here Sender Orientation 2 Flow Direction From Right to Left
6. on the gear operator hub MUST read CLOSED Slowly open bleed valve bleeding pressure and draining fluid from Pig Valve main body cavity Ensure safety release pin is installed in the integral equalization valve see Figure 3 preventing accidental operation during the pigging operation Unscrew Pressure Alert Valve PAV stem which is attached to the entry cap with the safety chain Do NOT inadvertently loosen the Pressure Alert Valve PAV body from the entry cap adapter WARNING Do NOT remove Pressure Alert Valve stem if there is pressure present while unthreading Failure to follow these instructions may result in serious injury or fatality NOTE The pressure alert valve MUST NOT be used to bleed down cavity pressure Once the stem is removed from the PAV body place it and the chain on top of entry cap to ensure it will not catch on anything while unscrewing the entry cap WARNING Do not cut or break chain off from entry cap because it will render this safety device useless Failure to follow these instructions may result in serious injury or fatality Slowly loosen entry cap by rotating counterclockwise using the supplied entry cap lug wrench see Figure 4 Observe the Pressure Warning Groove area at the bottom of the threads on entry cap see Figure 4 If there is any media flowing from this area when the entry cap is loosened immediately re tighten entry cap Slowly open bleed valve to bleed remaining pressure and drain f
7. MN PV 004 September 2008 Page 1 PIG VALVE MODEL D INSTALLATION OPERATION AND MAINTENANCE 1 0 SCOPE Argus Machine Co Ltd Argus manufactures Pig Ball Valves Pig Valves with flanged pipeline connections This manual covers the installation operation and maintenance of Argus Pig Valves model D 2 0 GENERAL Installation operation and maintenance of Pig Valves model D shall comply with the procedures as described in this manual The Pig Valve is a double block and bleed valve which allows pigs to be inserted and removed providing a safe and convenient alternative to the traditional method of pigging operations with valves tees and traps This is made possible by having independent upstream and downstream seats which isolate the body cavity from the upstream and downstream pressures when the valve is CLOSED An entry cap located at the top of the Pig Valve main body allows pigs to be inserted into and removed from the flow line when the valve is in the closed position The standard Argus Pig Valve is designed for 1 Operating temperature range of 50 F 46 C to 250 F 121 C 2 Sweet and sour service 3 _ Sending and receiving Bullet Scraper and Spherical type pigs 3 0 APPLICABLE STANDARDS The Pig Valve has been designed to meet the requirements of the following applicable standards 1 API 6D ISO 14313 2 API 598 3 NACE MR0175 4 ASME B16 5 B16 34 B31
8. 3 amp Section VIII 5 MSS SP 25 Face to face dimensions for the model D exceed API 6D specifications see TB PV 030 for details 4 0 SAFETY Many routine procedures are potentially hazardous if executed incorrectly or in unsafe conditions particularly when toxic flammable product is present Caution must also be exercised when high temperature and or pressure exist in the system The routine of sending a pig and receiving a pig while not complex requires prudence to prevent personal injury and or damage to the equipment The procedures detailed in this manual must be followed closely Other precautions that MUST be observed are listed below 1 Pig Valves MUST be suitable for the service conditions 2 Always follow government and site safety regulations 3 Use appropriate safety equipment and clothing including eye protection when operating the Pig Valve 4 Stand clear when bleeding down the main body cavity and removing the entry cap to prevent exposure to spray splatter or spillage of any hazardous media which may be contained inside the valve 5 Always use Argus O E M parts for service and repair 6 Never strike the Pig Valve or attached equipment 7 All accessories attached to the Pig Valve MUST be suitable for the service conditions 8 Never install or remove accessories from a Pig Valve that is under pressure 9 Atleast one bleed valve MUST be installed in the Pig Valve before installation or operation
9. Pig Valve It is recommended to grease Pig Valve before each pigging operation see Injection Guidelines It is recommended to inspect entry cap seal and sealing surface during the regular pigging operation when entry cap is removed Replace seal and repair seal surface as required see Service Manual MN PV 004 September 2008 Page 9 PIG VALVE MODEL D INSTALLATION OPERATION AND MAINTENANCE 9 0 In instances where the pig valve is not used regularly it is recommended that the pig valve be cycled ever 2 3 months In severe service where media build up may be a concern it is recommended to inject cleaners as required see Injection Guidelines INJECTION GUIDELINES Refer to Figure 2 amp 5 9 1 1 9 2 INTRODUCTION Argus model D Pig Valves are equipped with seat injection ports and a stem injection port These ports are used to inject cleaners lubricants and sealants into the interface between the seat insert and the ball Periodic injection of these cleaners lubricants and sealants will reduce downtime costly repairs and prolong the life of the Pig Valve Cleaners and lubricants are especially recommended for severe service applications GENERAL Refer to manufacturers instructions for use of injection equipment cleaners lubricants and sealants Best results are achieved by injecting cleaners and or lubricants while Pig Valve is in the FULLY OPEN or CLOSED posi
10. technical bulletin 4 Steel brush style pigs are NOT recommended The wires may scratch the seat and or ball sealing surfaces or come loose and wedge between the seat and ball 5 Use the supplied Argus Pig Valve Entry Cap lug wrench to open and close the entry cap Other types of wrenches may damage the cap MN PV 004 September 2008 Page 5 PIG VALVE MODEL D INSTALLATION OPERATION AND MAINTENANCE WARNING Do NOT use a metal faced hammer to loosen entry cap Hammering can crack the entry cap Failure to follow these instructions may result in serious injury or fatality PIG SENDING Open by pass valve if present Close Pig Valve clockwise when flow is L gt R and counterclockwise when flow is L lt R The indicator on the gear operator hub MUST read CLOSED Slowly open bleed valve bleeding pressure and draining fluid from Pig Valve main body cavity Ensure safety release pin is installed in the integral equalization valve see Figure 3 preventing accidental operation during the pigging operation SAFETY RELEASE PIN OPERATING LEVER Figure 3 Argus Integral Equalization Valve Unscrew Pressure Alert Valve PAV stem which is attached to the entry cap with the safety chain Do NOT inadvertently loosen the Pressure Alert Valve PAV body from the entry cap adapter WARNING Do NOT remove Pressure Alert Valve stem if there is pressure present while unthreading Failure to follow these instructions
11. the PAV valve Close all bleed valves Equalize cavity pressure with the integral equalization valve see Figure 3 Remove safety release pin and depress operating lever to energize cavity Release the operating lever once the valve cavity has been energized and replace the safety release pin locking out accidental operation Open Pig Valve to send pig into the flow line counterclockwise when flow is L gt R and clockwise when flow is LR The indicator on the gear operator hub MUST read OPEN Close by pass valve if present NOTE When equipped with a by pass line the by pass shut off valve may need to be closed prior to opening the Pig Valve and sending the pig This will help build up sufficient pressure upstream of the pig to push it into the downstream piping The extent of line contamination and the interference fit between the pig and flow line will determine whether this is necessary MN PV 004 September 2008 Page PIG VALVE MODEL D INSTALLATION OPERATION AND MAINTENANCE on FITTING PIER Eo ON gha IM ERC HECK Pi Tt FEEL ETT iy Tn GIANT BUTTON HEAD INJECT it N FIT TMs cw INNER CHECK GEAR OPERATOR HANDWHEEL P Figure 5 Top View of Argus Model D Pig Valve c w Gear Operator PIG RECEIVING Once the pig has reached the Pig Valve open by pass valve if present Close Pig Valve clockwise when flow is L R and counterclockwise when flow is L lt R The indicator
12. ARGUS MODEL D PIG VALVE Installation Operation and Maintenance Manual ae 4 ber BON eS Sie Dedicated to Improving Your Operations for Over 50 Years Argus Machine Co Ltd e 5820 97 Street Edmonton Alberta Canada T6E 3J1 Phone 780 434 9451 e Fax 780 434 9909 e www argusmachine com MN PV 004 September 2008 Printed in Canada 2008 Argus Machine Co Ltd TABLE OF CONTENTS 1 0 SCOPE 22 222222220scsssesssssesessesensssssesesenenseseesesesesssssssnsesesesessssssssesesessssssssssesesssssssesseses 2 2 0 GENERAL msanii 2 3 0 APPLICABLE STANDARDS 2 22222222 22ssssscesessssecssessecsnensessnencesensscesensecesessecesensecssensesssesees 2 4 0 SAFETY 22222222222020s0ssenenessensessesenenssneesessesesssssssessesesesssssessesesesssssssessesesesesesssssessesesesssssesess 2 5 0 HANDLING AND STORAGE 2222 22220202sesesssssesessesesssseeseesesesssssesessesesssssssessesesssssssessesesessees 3 5 1 HANDLING 22 202 nn nnn nn nn nnn n nn nnn nn nn nn nn nn nnnnnnnnanaennanananannenanacananannenanacnsananaananacacamammamana 3 52 STORAGE 0 nnn nn aa RRR aaa ansa 3 6 0 INSTALLATION 222 0 s2s2sssss0ssssesessscsessesesenssssssessesesesesssssssessesesssssssessesesessssssssssesesssssssess 3 6 1 INLET AND OUTLET PIPING 2 222 2nnnn nn nn nnn nn nnnnnn nn nen nn nnnnnnnnnannennnnanacnsanann
13. CCESSORY PORT INJECTION FITTING 1 2 NPT MAIN BODY TAILPIECE STUFFING BOX VENT FITTING PIG RESTRICTOR ZEB ay ACCESSORY PORT SEE TABLE FOR SIZE ML on i L T P SS a A F f e an ee VALVE STANDS BOX Vi g af i AD WAS INJECTION FITTING UPSTREAM SIDE J o DOWNSTREAM SIDE SEAT BALL ACCESSORY PORTS SEE TABLE FOR SIZE LOCATIONS FOR BLEED VALVE GAUGE OR OTHER ACCESSORIES Figure 2 Argus Pig Valve Model D c w Pressure Alert Valve Integral Equalization Valve Nominal Valve Size Thread Pipe Size NPS DN NPT 6 8 150 200 3 4 10 12 250 300 1 Table 1 Standard Accessory Port Size for Model D Pig Valves 7 0 OPERATION Refer to Figures 1 thru 5 In the following section on Argus Pig Valve Operation it is assumed that the orientation of the Pig Valve is such that the rotating stem gear operator is facing the field technician and the flow is left to right for pig sending and receiving CAUTION 1 Do NOT leave Pig Valve in a partially open position as this may damage the seats 2 Before closing Pig Valve the pipeline must be cleaned to purge all foreign materials which may cause damage to the ball and or ball seats typical for new or repaired pipelines 3 Pigs must not exceed Argus maximum recommended dimensions see TB PV 031
14. damage to the pig or ball Pull the pig directly out of the Pig Valve without working it from side to side Before installing entry cap check that the sealing face and threads on the entry cap adapter are free of foreign material and burrs Make sure the o ring is not damaged replace as required Install entry cap CAUTION Do NOT over tighten the entry cap as excessive tightening can cause damage to the entry cap and or the adapter Install PAV stem by threading clockwise into body of the PAV CAUTION The PAV valve is designed to be hand tightened do NOT over tighten the PAV valve stem as excessive tightening can cause damage to the PAV valve Close all bleed valves Equalize cavity pressure with the integral equalization valve see Figure 3 Remove safety release pin and depress operating lever to energize cavity Release the operating lever once the valve cavity has been energized and replace the safety release pin locking out accidental operation Open Pig Valve counterclockwise when flow is L R and clockwise when flow is LR The indicator on the gear operator hub MUST read OPEN 16 Close by pass valve if present 8 0 1 MAINTENANCE In climates where the flow line experiences freezing temperatures drain any water or other media which may solidify from the Pig Valve thru the accessory ports on the bottom of the main body CAUTION Media left in Pig Valve that is susceptible to freezing may damage the
15. e with minor to severe leaking valves and emergency valve sealing operations Recommend minor leakage Sealweld Total Lube 911 lubricant sealant or equivalent Recommend severe leakage Sealweld Ball Valve Sealant 5050 sealant or equivalent MN PV 004 September 2008 Page 10 PIG VALVE MODEL D INSTALLATION OPERATION AND MAINTENANCE 10 0 TROUBLESHOOTING Pig Valve won t open High torque a Open pressure equalization valve Check equalization valve for blockage and repair as required see Service Manual Media build up causing a sticking b Inject valve cleaner and lubricant into ball effect on moving parts seats see Injection Guidelines Media inside Pig Valve is frozen De ice Pig Valve won t close Foreign matter caught in ball Remove Pig Valve from flow line and and or ball seats repair see Service Manual Stops not set properly on gear Adjust stops on gear operator See gear operator operator Operating Manual Pig Valve cavity will not Foreign matter caught in ball Inject cleaner and lubricant into ball seats bleed down when in and or ball seats see Injection Guidelines CLOSED position Ball seats scratched Remove Pig Valve from flow line and repair see Service Manual Equalization valve leaks Remove Pig Valve from flow line and repair see Service Manual Stops not set properly on gear Adjust stops on gear operator See gear operator operator O
16. luid from Pig Valve main body cavity If unable to bleed all pressure from body cavity refer to the Troubleshooting section in this manual MN PV 004 September 2008 Page 8 PIG VALVE MODEL D INSTALLATION OPERATION AND MAINTENANCE 10 11 12 15 WARNING Do NOT use a metal faced hammer to loosen entry cap Hammering can crack the entry cap Care must be taken while using the entry cap lug wrench as to not strike the Pressure Alert Valve that protrudes from the entry cap adapter Do NOT loosen entry cap more than one half turn until certain there is NO leakage from the vent area Failure to follow these instructions may result in serious injury or fatality Unscrew entry cap so that it clears the threads and swing the cap 180 exposing the pig entry bore WARNING Objects such as pigs or ice slugs can get trapped and or ejected suddenly from the valve Ensure that the entry cap is operated from the side of the cap in front of the valve Minimize direct exposure to the valve while the cap is open Failure to follow these instructions may result in serious injury or fatality CAUTION Itis important to prevent any foreign material from entering the Pig Valve main body cavity when entry cap is removed Ensure the entry cap stays clean and free of damage when removed from Pig Valve Remove pig from Pig Valve CAUTION Should the pig be difficult to remove do NOT use excessive side force This may result in
17. may result in serious injury or fatality NOTE The pressure alert valve MUST NOT be used to bleed down cavity pressure Once the stem is removed from the PAV body place it and the chain on top of entry cap to ensure it will not catch on anything while unscrewing the entry cap WARNING Do not cut or break chain off from entry cap because it will render this safety device useless Failure to follow these instructions may result in serious injury or fatality Slowly loosen entry cap by rotating counterclockwise using the supplied entry cap lug wrench see Figure 4 Observe the Pressure Warning Groove area at the bottom of the threads on entry cap see Figure 4 If there is any media flowing from this area when the entry cap is loosened immediately re tighten entry cap Slowly open bleed valve to bleed remaining pressure and drain fluid from Pig Valve main body cavity If unable to bleed all pressure from body cavity refer to the Troubleshooting section in this manual WARNING Do NOT use a metal faced hammer to loosen entry cap Hammering can crack the entry cap Care must be taken while using the entry cap lug wrench as to not strike the Pressure Alert Valve that protrudes from the entry cap adapter Do NOT loosen entry cap more than one half turn until certain there is NO leakage from the vent area Failure to follow these instructions may result in serious injury or fatality MN PV 004 September 2008 Page 6 PIG VALVE MODEL D
18. nnenanacns 3 6 2 ORIENTATION 2ncnn cece nnn nn nn nn aaan 3 6 3 MOUNTING 0 2 en2nnnnnnnnn nnn nnnnnnnnonnennnnnnanacnnanannnnanananncananannenanacasanannenanacn naman 4 7 0 OPERATION 2 22 2222202s2sesssssccessssenensssseseceseesesenssssesessesesessessesssesesssssesessesesessessessesesesssssesees 5 7 1 PIG SENDING 2 2 2222 nn nano annem nen nnnn nen nana nen nnnanennanannnnanennananansenanensananennanacaneanasansenacans 6 7 2 PIG RECEIVING 2202 22n noon nnn nn nn nnn nace nnnnn nen nnnnnen nana nennnnanennananennacaneanacaneenacensanasensonas 8 8 0 MAINTENANCE 222222222 220020scscecssessessnsscesensscssensscssessecsnessessnessesessecesensesscssessecssessesenssees 9 9 0 INJECTION GUIDELINES 2222222222 220220sscssssscssessesssessecsnessesensscesensscesensscesensscssessscssensesees 10 9 1 INTRODUCTION 10 9 2 GENERAL 10 9 3 INJECTION EQUIPMENT 10 9 4 CLEANERS 2 2 222 2nnn nnn nnnn nnn nnnn nen nnnn nnn nnnnnnnnncannnnacennenanennenanennenanennananennacansanacanennenanansenan 10 9 5 LUBRICANTS
19. opper optional on Senders 10 Automatic or manual multi pigging optional see Multi Pig Launcher bulletin 11 Options or accessories 11 2 ORDERING SERVICE FOR ARGUS PIG VALVES When requesting service for Argus Pig Valves please provide the following data to the Service Department 1 Size 2 Model 3 _ ANSI Class pressure rating 4 Serial Number 5 Reason for Repair Example 8 Pig Valve Model D 600 ANSI Class S N PV 01000 11 3 CONTACT INFORMATION For Ordering Argus Pig Valves or Argus Pig Valve service Argus Machine Co Ltd Order Desk Assembly Division 5720 97 Street Edmonton Alberta Canada T6E 3J1 Toll Free 1 888 434 9451 Phone 780 434 9451 Fax 780 434 9909 MN PV 004 September 2008 Page 12 PIG VALVE MODEL D INSTALLATION OPERATION AND MAINTENANCE
20. perating Manual Bleed Valve plugged Isolate valve bleed down the line and replace bleed valve Leakage around entry cap O ring seal damaged Remove entry cap and replace o ring seal Seal surface damaged Remove entry cap inspect seal surfaces and repair as required see Service Manual Foreign matter on seal surface Remove entry cap and clean off foreign matter Leakage around tailpiece Primary seal in tailpiece is Remove Pig Valve from flow line and damaged replace primary seal see Service Manual Seal surfaces damaged Remove Pig Valve from flow line inspect seal surfaces and repair as required see Service Manual Bleed valve leaking a Seats and or seals damaged a Isolate valve bleed down the line and replace bleed valve b Bleed valve not closed b Close bleed valve MN PV 004 September 2008 Page 11 PIG VALVE MODEL D INSTALLATION OPERATION AND MAINTENANCE 11 0 HOW TO ORDER PIG VALVES amp PIG VALVE SERVICE 11 1 ORDERING ARGUS PIG VALVES When Argus Pig Valves are ordered the following information will be required 1 Model 2 Size 3 ANSI Class pressure rating and flange type e g 600 ANSI Class RF 4 Pig Sender or Pig Receiver 5 _ Flow direction from left to right or right to left with rotating stem facing user 6 Type of pig Sphere or Bullet Scraper 7 Quantity of pigs required 8 Quantity of Pig Valves required 9 Tailpiece pig st
21. tion Inject a sufficient quantity of cleaner lubricant or sealant as required A rule of thumb is to inject approximately 1 2 ounces per inch of valve size into each of the seat injection fittings INJECTION EQUIPMENT WARNING Read and follow all manufacturers instructions for safe operation of injection equipment Failure to follow these instructions may result in serious injury or fatality Injection equipment is required to inject cleaners lubricants and sealants into the Pig Valve Recommend Sealweld SuperGun or equivalent CLEANERS Cleaners are used to clean critical seal surfaces and sealant passages by softening flushing and removing old sealants residual buildup and foreign particles Such as sand debris scales etc Recommend Sealweld Valve Cleaner Plus or equivalent LUBRICANTS Lubricants are designed to protect critical seal surfaces against corrosion and flush out pipeline contaminants as well as reduce operating torque requirements Recommend Sealweld Equa Lube Eighty lubricant Chemola Desco 622 lubricant sealant or equivalent SEALANTS WARNING Pigging the flow line is NOT recommended after sealant has been injected into Pig Valve repair the Pig Valve before continuing pigging operation Sealant may be used to ensure positive shut off of the flow line when the Pig Valve is closed Failure to follow these instructions may result in serious injury or fatality Sealants are designed specifically for us
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