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FLOW-TEK SERIES 19L SEGMENTED BALL VALVE

Installation, Operation, and Maintenance Manual

22 of 31

contained herein shall not be copied, transferred, conveyed, or displayed in any manner that would

violate its proprietary nature without the express written permission of Bray International, Inc.

13.2

Installing the Seat & Liner

CAUTION

Be extremely careful not to gall or scratch the sealing surface of
the seat. Scratches may later cause excessive leakage and seal
wear.

When used, solid tungsten carbide seats and liners should be
handled with care, avoiding impact or excessive loads, to prevent
damage.

13.2.1 Ensure the segment is in the fully closed position. Insert the seat

through the downstream bore (with the seal surface facing the
segment) until the seat contacts the segment.

13.2.2 Select seat seal guide (not shown) from

Table 3

, based on valve

size. Place the seat seal guide on the seat. Insert springs and seat
seal with guide washers on each side.

13.2.3 Insert liner, retainer gasket, and liner retainer onto body.

13.2.4 Use hydraulic press against liner retainer to compress liner and

seat seal assembly until the liner retainer contacts body end
flange. (Use loads shown in

Table 4

13.2.5 Install retainer screws and hand tighten. (Ensure the seat seal

guide is removed after the liner retainer screws have been
installed.)

NOTICE

Retainer screws are designed for retention only. Retainer gasket
will be compressed by tightening of the end flange bolting.

13.3

Shell and Seat Test

13.3.1 After reassembly, perform a shell and seat test to ensure proper

operation.

Figure 3:

Installing the seat and

liner.

Содержание 19L Series

Страница 1: ...FLOW TEK SERIES 19L SEGMENTED BALL VALVE Installation Operation and Maintenance Manual BRAY COM THE HIGH PERFORMANCE COMPANY ...

Страница 2: ...ERMS 3 2 0 INTRODUCTION 4 3 0 PARTS IDENTIFICATION 5 4 0 VALVE IDENTIFICATION 7 5 0 GENERAL INFORMATION 8 6 0 HANDLING REQUIREMENTS 10 7 0 STORAGE 12 8 0 INSTALLATION 14 9 0 OPERATION 17 10 0 PREVENTATIVE MAINTENANCE 18 11 0 ACTUATOR REMOVAL AND REMOUNTING 19 12 0 REMOVING VALVE FROM PIPELINE 20 13 0 SEAT AND LINER REPLACEMENT S19L CLASS 150 300 600 PN 10 16 25 40 21 14 0 DISASSEMBLY AND INSPECTIO...

Страница 3: ...ARNING CAUTION and NOTICE are used in this document to prevent unwanted consequences Standard symbols and classifications are DANGER Indicates an immediate hazardous situation which if not avoided will result in death or serious injury and or property damage WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury and or property damage CAUTI...

Страница 4: ...ted ball valves only Specific instructions for non standard materials of construction temperature range etc should be referred to the factory 2 2 This manual covers S19L valves in the following range NPS 1 to 16 DN 25 to 400 ASME Class 150 300 600 PN 10 16 25 40 Body Style Flanged 2 3 Additional product information such as application data engineering specifications actuator selection etc is avail...

Страница 5: ... copied transferred conveyed or displayed in any manner that would violate its proprietary nature without the express written permission of Bray International Inc 9 4 5 12 11 15 8 4 3 2 1 7 6 21 20 19 18 17 14 13 16 36 35 37 22 24 23 10 42 39 41 30 31 32 40 38 33 34 25 26 27 28 29 Severe Service Metal Seat 3 0 PARTS IDENTIFICATION 3 1 Parts Callout S19L ASME 150 300 600 PN 10 16 25 40 SEAT DESIGN ...

Страница 6: ... 9 Retainer Screw 10 Segment 11 Stem 12 Stem Bearing Spacer 13 Stem Bearing Seal 14 Stem Bearing 15 Split Ring 16 Thrust Washer 17 Packing Spacer 18 Stem Seal Kit 19 Gland Ring 20 Retaining Ring 21 Gland Retainer 22 Gland Stud 23 Gland Lock Washer 24 Gland Nut 25 End Post 26 End Post Bearing Spacer 27 End Post Bearing Seal 28 End Post Bearing 29 End Post Thrust Washer 30 Post Cover Gasket 31 Post ...

Страница 7: ...d conveyed or displayed in any manner that would violate its proprietary nature without the express written permission of Bray International Inc 4 0 VALVE IDENTIFICATION 4 1 Identification Tag All valves actuators or control products are provided with a permanently affixed identification tag meeting the requirements of applicable standards and certifications for the product As each product is uniq...

Страница 8: ...tended service The identification tags describe the maximum allowable service conditions for this product Be sure that the installation is protected by appropriate pressure control and safety devices to ensure that acceptable limits are not exceeded 5 2 Operation Operation of the valve is done by turning the stem a quarter turn 90 degree turn Clockwise to close counter clockwise to open CAUTION Va...

Страница 9: ... include appropriate education training experience and knowledge of relevant standards specifications operating conditions and accident prevention 5 6 Spare Parts Use only Bray original spare parts Recommended spare parts are identified in the Parts Identification drawing and list for each product model Bray cannot accept responsibility for any damages that occur from using spare parts or fastenin...

Страница 10: ...r use straps through valve body Take care to position lifting straps to avoid damage to the tubing and mounted accessories 6 2 Unpacked Valves Lifting and handling of valves should be carried out by using appropriate means and observing the carrying limits Handling must be carried out on pallets protecting all machined surfaces to avoid any damage With large bore valves rigging the load must be ca...

Страница 11: ...erials received Lists describing the valve and accessories are included in each shipping container and general assembly drawing as applicable WARNING Never lift the valve or valve package by the actuator positioner limit switch or their piping When lifting a valve be aware that the center of gravity may be above the lifting point Therefore support must be given to prevent the valve from rotating F...

Страница 12: ...ect within a relatively short amount of time typically one to three months During short term storage the following is required 7 1 1 The preferred storage location is a closed clean and dry environment Do not expose the product to temperature extremes 7 1 2 Valve should be stored in closed position 7 1 3 End protectors shall remain on valve ends to prevent the entrance of dirt debris or insects wi...

Страница 13: ... to prevent the entrance of dirt debris or insects wildlife 7 2 4 Product shall remain in the original shipping container with the original packaging materials CAUTION Do not stack the valves on top of each other 7 2 5 Manually actuated valves may be stored in the vertical or horizontal position For air or hydraulically actuated valves the preferred orientation is with the valve and cylinder in th...

Страница 14: ...ad clearance to allow for disassembly of the actuator from the valve body Refer to the appropriate General Assembly Drawing for proper clearances Provide necessary support for accessories when center of gravity for complete assembly is further off from pipe center line Refer to the appropriate General Assembly Drawing for center of gravity position 8 2 Cleaning Before installing the valve clean th...

Страница 15: ...ientation it is recommended to also place the stem in the horizontal position resulting in the segment opening towards the top of the body cavity 8 4 Gaskets Gaskets should conform to the requirements of API 601 for ASME B16 5 class flanges Spiral wound gaskets such as Flexitallic CG or CGl series conforming to ASME B16 20 or EN 1514 2 are acceptable 8 5 Bolting Use standard flange bolting torques...

Страница 16: ... connections must be completely tight CAUTION On valves equipped with air filters the air filter must point down to perform properly 8 8 Pre Commissioning Check Before commissioning check the valve by following these steps 8 8 1 Check for full stroke by varying the instrument signal settings appropriately Observe the segment position indicator located on the actuator or the positioner The segment ...

Страница 17: ...turning the stem a quarter turn 90 degree turn The stem is turned clockwise to close counter clockwise to open 9 2 Indication The valve open and closed position are indicated by the position of indentation on the stem Valve OPEN position Flats of Double D stem are parallel to pipeline Valve CLOSED position Flats of Double D stem are perpedicular to pipeline CAUTION Valves with actuators should be ...

Страница 18: ...xidation 10 5 Check packing gland retainer bolting for proper tightness If there is a persistent leak that cannot be stopped by tightening of the gland nuts replace the packing Refer to Disassembly and Reassembly sections in this document CAUTION Do not over tighten packing This can cause excessive packing wear and high stem friction that may impede stem movement Reference Table 1 for recommended ...

Страница 19: ... 11 1 2 Neutralize all energy sources electrical pressure and mechanical 11 1 3 Support the actuator assembly before disconnecting it from the body assembly 11 1 4 Unbolt the actuator assembly from valve mounting bracket 11 1 5 Lift actuator assembly off stem 11 2 Remounting Actuator 11 2 1 Before mounting an actuator on the valve body verify that the segment rotation matches the actuator rotation...

Страница 20: ... atmospheric pressure drain all process fluids and decontaminate the valve if caustic or hazardous materials are present Failure to do so can cause serious injury Make sure the valve is in closed position 12 2 Neutralize all energy electrical pressure and mechanical sources 12 3 Attach a hoist or some means to support the valve 12 4 Remove line bolting CAUTION Do not attempt to pry line flanges ap...

Страница 21: ...tional Inc 13 0 SEAT AND LINER REPLACEMENT S19L CLASS 150 300 600 PN 10 16 25 40 13 1 Removing the Seat Liner 13 1 1 The valve must be removed from the pipeline Refer to section Removing Valve From Pipeline 13 1 2 Rotate the segment so that it does not touch the seat i e beyond operating 90 degrees 13 1 3 Unscrew liner retainer cap screws Remove liner retainer and gasket 13 1 4 Tap the seat with a...

Страница 22: ...the seat through the downstream bore with the seal surface facing the segment until the seat contacts the segment 13 2 2 Select seat seal guide not shown from Table 3 based on valve size Place the seat seal guide on the seat Insert springs and seat seal with guide washers on each side 13 2 3 Insert liner retainer gasket and liner retainer onto body 13 2 4 Use hydraulic press against liner retainer...

Страница 23: ...1 8 Using a punch and mallet drive the stem pin into the center of the stem until the outward end of the pin clears the segment Be careful not to damage the stem NOTE The pin can be removed from the stem by driving it out of the through holes with a mallet and punch once the segment has been removed 14 1 9 Remove the end post and end post thrust washer NOTE Inserting a bolt in the jack screw hole ...

Страница 24: ...prietary nature without the express written permission of Bray International Inc 14 2 Inspection of Removed Parts 14 2 1 Clean the removed parts NOTICE Cleaning should be done with acetone or equivalent product 14 2 2 Visually inspect the stem and bearings for abnormal wear or damage 14 2 3 Visually inspect the sealing surface of the segment and seat for abnormal wear or damage 14 2 4 If necessary...

Страница 25: ...scratches CAUTION Damaged or dirty seal surfaces can cause excessive seat wear and high torque requirements Damaged segment should be replaced 15 1 2 Insert the segment into the body through the upstream bore splined shaft hole first towards the downstream seat pocket Once the segment is fully in the body cavity rotate the segment placing the splined segment hole in alignment with the packing box ...

Страница 26: ...by the stem seal kit NOTICE When packing set with PTFE rings carbon fiber ring is used carbon fiber packing ring shall be installed at last Always use new packing whenever rebuilding the packing box CAUTION When V packing rings are used it is imperative to avoid damage to the feather edge of the V ring as it is the sealing edge 15 3 4 Install the gland ring retaining ring split rings gland retaine...

Страница 27: ...ody 15 4 2 Insert end post bearing spacer end post bearing seal and end post bearing onto end post 15 4 3 Place thrust washer on end post NOTICE Small quantity of compatible grease adhesive may be used to place thrust washer considering thickness 15 4 4 Place the gasket in groove followed by post cover stud washer nut NOTICE Post cover stud nut shall be torqued as per Table 2 15 5 Seat Liner Assem...

Страница 28: ...or replace bottom plate and or body based on severity of damage Through bore leakage Segment not in fully closed position Adjust close limit travel stops in actuator or check for backlash in actuator drive Segment and seat misaligned Loosen the gland packing and center the segment by cycling valve 3 5 times Re tighten the gland packing Media solidified or entrapped Clean sealing surfaces and seat ...

Страница 29: ...e returned require a Return Merchandise Authorization RMA Contact a Bray representative for instructions and RMA forms to be completed prior to return of any product 17 2 The following information must be provided when submitting RMA Serial number Part number Month and year of manufacture Actuator specifics Application Media Operating temperature Operating pressure Total estimated cycles since las...

Страница 30: ...r Torque S19L ASME 150 to 600 PN 10 to 40 lbf in Valve Size Nut size Estimated Torque Maximum Torque NPS lbf in lbf in 1 M08 54 142 11 2 M08 54 142 2 M08 62 142 3 M08 89 142 4 M08 89 142 6 M10 169 275 8 M10 169 275 10 M10 239 275 12 M12 372 487 16 M16 753 1213 Table 2 Post Cover Torque S19L ASME 150 to 600 PN 10 to 40 N m Valve Size Nut size Estimated Torque Maximum Torque DN N m N m 25 M08 6 16 4...

Страница 31: ...ANY All statements technical information and recommendations in this bulletin are for general use only Consult Bray representatives or factory for the specific requirements and material selection for your intended application The right to change or modify product design or product without prior notice is reserved Patents issued and applied for worldwide Bray is a registered trademark of Bray Inter...

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