Weir SPM EXL Guida alla risoluzione dei problemi

Part Number: 2A33687

Release Date: 8/27/2015

Revision: B

this document, which must not be copied in whole or in part, in any form or by any means, and the information in it must not be used for any purpose

other than the specific purpose for which it has been provided without the prior written consent of the copyright owner. SPM, SAFETY IRON, SAFETY

HAMMER, SUR-DROP, DESTINY, STAMPEDE, DURALAST and GLADIATOR are trademarks and/or registered trademarks of S.P.M. Flow Control,

Inc.. WEIR and WEIR (logo) are trademarks and/or registered trademarks of Weir Engineering Services Limited. Certain features of some of the products

disclosed in this document may be protected worldwide by patents pending and registered in the name of S.P.M. Flow Control, Inc..

SPM

Well Service Pumps & Flow Control Products

EXL Back Pressure Relief Valves

Operation Instruction and Service Manual

Part Number: 2A33687

Release Date: 8/27/2015

Revision: B

THE FOLLOWING ICONS DENOTE IMPORTANT INFORMATION WITHIN THIS MANUAL.

GENERAL INFORMATION

INSTALLATION AND OPERATION

MAINTENANCE AND REPAIR

SALES AND SUPPORT

NOTE

CAUTION

WARNING/ DANGER

Part Number: 2A33687

Release Date: 8/27/2015

Revision: B

IMPORTANT SAFETY INFORMATION ENCLOSED. READ THIS OPERATING AND MAINTENANCE

INSTRUCTIONS MANUAL BEFORE OPERATING PRODUCT.

THIS INFORMATION MUST BE AVAILABLE TO ALL PERSONNEL THAT WILL OPERATE AND

MAINTAIN EQUIPMENT. FAILURE TO READ, UNDERSTAND AND FOLLOW THE OPERATING AND

MAINTENANCE INSTRUCTIONS MANUAL COULD RESULT IN SEVERE PERSONNEL INJURY OR

DEATH!

Most Weir SPM®products generate, control or direct pressurized fluids; therefore, it is critical that those who

work with these products be thoroughly trained in their proper application and safe handling. It is also critical

that these products be used and maintained properly!!

SPM

flow products contain elastomeric seals and are not intended to provide proper functionality when

exposed to fire.

MISUSE, SIDE LOADING, IMPROPER MAINTENANCE, OR DISASSEMBLY UNDER PRESSURE CAN

CAUSE SERIOUS INJURY OR DEATH!

The following information is given in good faith and should aid in the safe use of your SPM®products. This

information is not meant to replace existing Company's safety policies or practices.

Personal Responsibilities:

1. When working on Weir SPM®flow control products, safety glasses, approved safety shoes and hard hat

must be worn.

2. Personnel should never hammer on any component when pressure is present. Hammering on any part

or component may also cause foreign material or steel slags to become airborne.

3. It is a personal responsibility to use the proper tools when servicing the valve. It is a personal

responsibility to be knowledgeable and trained in the use and handling of tools for all maintenance of the

valve.

4. Hot surface may be present; it is a person’s own responsibility to protect against burn injury.

Part Number: 2A33687

Release Date: 8/27/2015

Revision: B

On Location:

1. Each valve is clearly marked with a maximum pressure rating. This pressure must not be exceeded or

SERIOUS INJURY OR DEATH CAN OCCUR!

2. The valve discharge connections should be properly cleaned and lightly oiled before the downstream

piping is attached. Any worn, damaged or missing seals should be replaced.

3. Welding, brazing or heating any part of the valve is prohibited. If accessories must be attached, consult

Weir Oil & Gas factory prior to installation.

4. A complete visual inspection of the valve must be made prior to each use. Any leaking seals, broken

bolts, leaking hoses or improperly tightened parts must be remedied prior to using.

5. Any repairs or service (even routine maintenance) performed on the valve must be performed by a

trained service technician who is qualified to work on high pressure flow control valves. All such service

and repairs must be supervised by qualified management personnel or returned to Weir Oil & Gas for

service. Only SPM

replacement parts should be utilized. Failure to do so may result in loss of

warranty as well as SERIOUS INJURY OR DEATH!

Special Precautions:

1. The modifications to or unauthorized repair of any part of a SPM

valve, or use of components not

qualified by SPM

, can lead to valve damage or failure and SERIOUS INJURY OR DEATH!

2. All SPM

threaded components are right hand threaded unless specifically designated otherwise. Any

turning counterclockwise will unscrew the assembly. Make sure all threaded components are

assembled to the correct torque value.

3. All products should be properly cleaned, greased or oiled after each use and inspected prior to each

use.

4. Each integral union connection is clearly marked with a pressure code (i.e. “1502”, 15,000 psi). This

pressure must not be exceeded. This code should also be used with mating unions. Improper mating

can result in failures. All integral union connections used must match (according to size, pressure

rating, etc.). These connections must also match the service of the designated string they are installed

in.

Part Number: 2A33687

Release Date: 8/27/2015

Revision: B

CONTENTS

SECTION I: GENERAL INFORMATION..............................................................................................................................................6



HIS SERVICE MANUAL COVERS

:.............................................................................................................................................................6



EBUILD

ITS

RITICAL

OMPONENTS

:................................................................................................................................................6



RODUCT

ESCRIPTION

:........................................................................................................................................................................7



ENERAL

ESCRIPTION OF

ELIEF

ALVE

PERATION

:.......................................................................................................................8



ONNECTION

PTIONS

:..................................................................................................................................................................8



SECTION II: INSTALLATION AND OPERATION..............................................................................................................................9



NSTALLATION

:.........................................................................................................................................................................................9



ETHODS TO OPERATE

ELIEF

ALVE

.................................................................................................................................................10



EXL

ACK

RESSURE

ELIEF

ALVE

ONTROL

ANEL

ETTING

UIDE

PTIONAL

)......................................................................15



RESSURE

EMPERATURE

ATINGS

:..................................................................................................................................................17



SECTION III: MAINTENANCE AND REPAIR ...................................................................................................................................18



AINTENANCE

EQUIREMENTS

:...........................................................................................................................................................19



BOM

ABLE

:.........................................................................................................................................................................................21



REVENTATIVE

AINTENANCE AND

ISASSEMBLY

:.............................................................................................................................25



REVENTATIVE

AINTENANCE

NSPECTING

NTERNAL

OMPONENTS

...............................................................................................30



REVENTATIVE

AINTENANCE

EPLACEMENT AND

SSEMBLY OF

ETAL

EALING

OMPONENTS

................................................32



NNUAL

AINTENANCE

ISASSEMBLY AND

EPAIR OF

YLINDER

OMPONENTS

............................................................................36



NNUAL

AINTENANCE

NSPECTION OF INTERNAL COMPONENTS

.....................................................................................................36



SSEMBLY

:............................................................................................................................................................................................38



ESSEL

EST

ROCEDURES

:...............................................................................................................................................................47



ETTING AND

DJUSTING

RESSURE

:.................................................................................................................................................47



ERV

TAND

SSEMBLY

:.......................................................................................................................................................................48



ROUBLESHOOTING

UIDE

...................................................................................................................................................................49



SECTION IV: SERVICE AND SUPPORT...........................................................................................................................................50



ERVICE

ENTER

RDER

NFORMATION

:............................................................................................................................................50



EIR

OCATIONS

:...............................................................................................................................................................51



Part Number: 2A33687

Release Date: 8/27/2015

Revision: B

SECTION I: General Information

This service manual covers:

2A33687 ASSY/RLF VA/3-1502/FULL BORE/THRD/BP

Rebuild Kits/Critical Components:

2A37213 Full Kit (Metal and Seal kit)

4L28050 Metal Seal Kit (Nozzle Assembly, Valve Gate)

P33637 Cartridge

2P39528 Spider

Part Number: 2A33687

Release Date: 8/27/2015

Revision: B

Product Description:

The SPM®EXL Back Pressure Relief Valve provides increased efficiency during service/maintenance;

improved safety mechanism in the event of a blocked discharge port and increased longevity of service by

design.

The following components of the EXL Back Pressure Relief Valve have been re-designed from the Legacy Back

Pressure N2 valve:

Threaded Body/Flange

Overhaul of both Upper/Lower inner components

Removable Packing Assembly & Nut

These modified components to the EXL will benefit in the following ways:

Eliminates the area of danger in the event the valve’s discharge port is blocked

Aids in a quicker re-kitting in the field

Reduces assembly time

The SPM®EXL Back Pressure Relief Valve provides over-pressure protection for reciprocating pumps, treating

lines, pressure vessels, and other equipment operating under high pressure, high flow conditions. Compact

and simple to operate, the valve is direct acting, relying on the system's hydraulic pressure to overcome a

preset nitrogen gas force to relieve. It is externally adjustable from zero pressure to maximum setting.

The SPM

valve will reseat once the system pressure reduces. Unlike many “High-Lift” Valves, which require a

substantial drop in pressure before they will reseat, the SPM

Relief Valve exhibits little blow down and will

reseat at or near the “cracking pressure.”

Manufactured to Weir Oil & Gas’s stringent Quality Assurance System, all pressure bearing components are

made from high quality material. The forged body features an integral wing union male inlet connection,

suitable for the pressure rating of the component.

The low-pressure outlet is available with an integral wing union connection. Conforming to conditions of design

and performance in API RP520, the SPM

EXL Back Pressure Relief Valve is intended for liquid service. It is

not intended for elevated temperatures or as a safety device in case of fire.

Available in 3”, this valve offers pressure ranges from 1,000 – 15,000 psi. The valve is best suited for over

pressure protection in a “slick water” medium.

DO NOT USE FOR H2S SERVICE! Contact your Weir Oil & Gas representative for advice about

sour gas service applications.

Part Number: 2A33687

Release Date: 8/27/2015

Revision: B

General Description of Relief Valve Operation:

The SPM

EXL Back Pressure Relief Valve’s operation is a simple balance between the nitrogen acting on the

piston and the inlet liquid pressure acting on the rod and wear sleeve. The equation is Pressure times Area

equals Force (PxA=F). The ratio of areas is approximately 25:1 for the 15,000 psi rated valve.

This means that nitrogen pressure of 100 psi can counter an inlet line pressure of 2500 psi for the 15,000 psi

rated Back Pressure Relief Valve. Variations in this ratio in practice are due to friction of seals and will be

discussed in setting and adjusting section on page 11.

End Connection Options:

The SPM

3” EXL Back Pressure Relief Valve is available with SPM

wing union connections. The nameplate

will indicate the cold working pressure allowable for each assembly.

Wing union connections on the relief valve are interchangeable with other union connections of the same size

and figure (pressure rating). Caution must be taken to avoid mixing different ratings of wing connections.

There are various sizes and figures that are capable of making marginal connections. Failure to observe good

judgment may lead to failure of components and danger to life and limb. Always verify working pressure ratings

of each connection before use.

This device is intended to discharge to atmospheric pressure when it relieves. It must not be subjected to any

significant backpressure; other than that generated by gravity or frictional losses on the discharge line. The

choice of discharge connections is offered as a convenience for the user and does not imply high-pressure

capability.

WARNING: OBSERVE ALL INSTRUCTIONS, CAUTIONS AND WARNINGS AS NOTED IN THIS

MANUAL. FAILURE TO DO SO CAN LEAD TO EQUIPMENT DAMAGE AND PERSONAL INJURY OR

DEATH!

Part Number: 2A33687

Release Date: 8/27/2015

Revision: B

SECTION II: Installation and Operation

Installation:

The SPM®

EXL Back Pressure Relief Valve should be installed in a branch on the high-pressure pump line (Fig.

1). It is recommended that the valve be placed downstream away from the high pressure pumps. This

increased distance will reduce the likelihood of the valve seat’s experiencing “chatter”. Any application

requiring localized protection of the high pressure pump is acceptable. However, this will require additional

differential between the fluid pressure and set pressure of the valve to prevent “valve chatter”. Contact

Engineering for additional recommendations.

It is recommended to operate the valve in the upright position. This will reduce the tendency for proppants to

accumulate around the sealing area and potentially affect the sealing performance. However, the valve will

function within 90 degrees declination (Angle from vertical).

The gas regulator and gas back pressure relief valve should be installed as close to the relief valve as possible.

The nitrogen filled high-pressure cylinder must be secured to either a skid or trailer or by staking it to the

ground.

All general Frac Fluids may be discharged through the valve. The valve will tolerate clean liquids better than

others and lighter liquids will flow greater rates than heavier liquids. Particulates, abrasives and contaminants

will not preclude the valve from opening at the appropriate set pressure. However, abrasive materials will

cause some wear between the wear sleeve, nozzle, and main seal. While these components feature wear

resistant surfaces, their life will be reduced as the abrasives increase in the fluid.

WEIR OIL & GAS HIGHLY RECOMMENDS THAT AN ISOLATION VALVE BE PLACED BETWEEN

THE PRESSURE LINE AND THE RELIEF VALVE. THE ISOLATION VALVE MUST BE IN THE OPEN

POSITION DURING NORMAL OPERATION.

With the isolation valve installed, as shown in Figure 1, any time the pressure exceeds the set pressure at the

EXL Back Pressure Relief Valve, the fluid will pass through the valve and out the discharge.

Figure 1

Part Number: 2A33687

Release Date: 8/27/2015

Revision: B

Installation (Cont.):

At low flow rates, the valve will discharge fluid at approximately the set pressure (Fig. 2). At higher flow rates,

the valve will discharge fluid at levels above the set pressure. API 520 defines the valve flow capacity as the

rate that can be relieved at an over pressure of 25%. When the fluid pressure falls to the set pressure level or

below, the valve will reseat and reseal.

Figure 2

Indice

Altri manuali Weir Unità di controllo

Weir

Weir Starflow P3 Manuale utente

Weir

Weir SPM Manuale

Manuali Unità di controllo popolari di altre marche

Festo

Festo Compact Performance CP-FB6-E Manuale elenco delle parti

Elo TouchSystems

Elo TouchSystems DMS-SA19P-EXTME Manuale utente

JS Automation

JS Automation MPC3034A Manuale utente

JAUDT

JAUDT SW GII 6406 Series Guida rapida

Spektrum

Spektrum Air Module System Manuale utente

BOC Edwards

BOC Edwards Q Series Manuale utente

KHADAS

KHADAS BT Magic Manuale utente

Etherma

Etherma eNEXHO-IL Manuale utente

PMFoundations

PMFoundations Attenuverter Manuale utente

GEA

GEA VARIVENT Manuale utente

Walther Systemtechnik

Walther Systemtechnik VMS-05 Manuale utente

Altronix

Altronix LINQ8PD Istruzioni per il montaggio

Eaton

Eaton Powerware Series Manuale utente

WAGO

WAGO 750-407/040-000 Manuale utente

Sony

Sony CCU-590 Manuale utente

Graco

Graco 25D614 Manuale utente

Task Force Tips

Task Force Tips YE-RF-900 Manuale di programmazione

Shini

Shini SPV-U Series Manuale utente