Bray ACRIS 24 Series 24 Bedienungsanleitung

ACRIS® SERIES 24/25

PFA LINED BUTTERFLY VALVE

Installation, Operation, and Maintenance Manual

BRAY.COM THE HIGH PERFORMANCE COMPANY

ACRIS® SERIES 24/25 PFA LINED BUTTERFLY VALVE

Installation, Operation, and Maintenance Manual

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.

CONTENTS

1.0 DEFINITION OF TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.0 PARTS IDENTIFICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4.0 SHIPMENT, HANDLING, AND STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5.0 INSTALLATION CONSIDERATIONS, PIPING AND VALVE ORIENTATION AND PLACEMENT . . . . . . . . 11

6.0 INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

7.0 OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

8.0 ACTUATOR REMOVAL AND REMOUNTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

9.0 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

10.0 RETURN MERCHANDISE AUTHORIZATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

ACRIS® SERIES 24/25 PFA LINED BUTTERFLY VALVE

Installation, Operation, and Maintenance Manual

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.

1.0 DEFINITION OF TERMS

1.1 All information within this manual is relevant to the safe operation

and proper care of your Bray valve. Please understand the

following examples of information used throughout this manual.

X.X IDENTIFIES CHAPTER HEADING

X.XX Indentiﬁes and explains sequential procedure to be performed.

NOTE: Provides important information, useful tips, and

recommendations related to a procedure.

SAFETY STATEMENTS

The terms DANGER, WARNING, 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.

CAUTION

Indicates a potentially hazardous situation which, if not avoided,

may result in minor or moderate injury and/or property damage.

NOTICE

Indicates and provides additional technical information which

may not be obvious, even to qualiﬁed personnel. The term is not

used for personal injury hazards or warnings, but can be used to

indicate possible equipment or property damage.

1.2 Compliance with other notes — regarding transport, assembly,

operation & maintenance, and about technical documentation

(e.g., in the operating instructions, product documentation, or on

the product itself) — is essential, to avoid faults which can directly

or indirectly cause severe personal injury or property damage.

ACRIS® SERIES 24/25 PFA LINED BUTTERFLY VALVE

Installation, Operation, and Maintenance Manual

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.

2.0 INTRODUCTION

NOTICE

Failure to follow these procedures could aect product warranty.

Read and follow these instructions carefully, and keep this

manual in a safe place for future use.

Based on over thirty years experience in the butterﬂy valve

industry, Bray can state without question the majority of all ﬁeld

problems for PFA lined butterﬂy valves are directly related to

poor installation procedures. For this reason, it is very important

all distributors educate their customers regarding proper

installation of PFA lined butterﬂy valves.

2.1 Butterﬂy Valve Liner/Disc Function

The PFA over-molded disc and PFA liner are the chemically

resistant barrier to the ﬂowing media. The only wetted parts of

the valve are the PFA disc and liner. The valve body, back-up liner,

packing, springs, bearings, stems, etc. are all isolated from the

ﬂowing media and are non-wetted parts.

The PFA liner extends over the face of the valve body and functions

as the ﬂange gasket. Additional gaskets are not normally required

in installations where the ﬂange strength allows maximum

bolting torque (steel and alloy ﬂanges for example). If sucient

bolting torque cannot be achieved due to ﬂange type or material

strength limits (FRP for example), a gasket may be required for

proper ﬂange sealing. Gaskets may be used when pipeline ﬂange

faces exhibit excess unevenness due to poor machining or weld

distortion.

The PFA liner has a 360 degree, full width resilient back-up liner

(Silicone or Viton), which provides the energy for proper sealing.

The sealing force of the back-up liner is not dependent on ﬂange

compression and acts independently from the pipeline ﬂanges.

The PFA liner is the chemically resistant membrane that separates

the media from the back up liner. Upstream/downstream sealing

is achieved by an interference ﬁt between the disc and liner,

which in turn compresses the back-up liner.

Finally, the disc of a butterﬂy valve extends beyond the face-to-face

dimension of the valve as it cycles towards the full open position. It

is important to follow the recommended minimum and maximum

ﬂange inside diameters in the mounting instructions to avoid piping

interference with the disc, and achieve proper sealing on the PFA

ﬂange face.

ACRIS® SERIES 24/25 PFA LINED BUTTERFLY VALVE

Installation, Operation, and Maintenance Manual

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.

3.0 PARTS IDENTIFICATION

3.1 Parts Callout NPS 2 to 2½ | DN 50 to 65

ITEM DESCRIPTION

Body

Body Bolt

Body Face O-ring

DiscStem Assembly

Liner

Backup Liner

Packing

Lower Bushing

Bearing Strip

 Spring

 Atmospheric Seal

 O-ring

 O-ring

 Bearing Strip

 Retaining Ring

 Stem Spacer

 Name Plate

 Drive Screw

11ASSEMBLY

30, 31

ACRIS® SERIES 24/25 PFA LINED BUTTERFLY VALVE

Installation, Operation, and Maintenance Manual

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.

3.0 PARTS IDENTIFICATION

3.2 Parts Callout NPS 3 to 6 | DN 80 to 150

ITEM DESCRIPTION

Body

Body Bolt

Body Face O-ring

DiscStem Assembly

Liner

Backup Liner

Packing

Lower Bushing

Bearing Strip

 Spring

 Atmospheric Seal

 O-ring

 O-ring

 Bearing Strip

 Spacer Washer

 Stem Bushing

 Stub Shaft

 Stopper

 Retaining Ring

 Stem Spacer

 Bottom Plate

 Hex Bolt

 Name Plate

 Drive Screw

30, 31

ASSEMBLY

ACRIS® SERIES 24/25 PFA LINED BUTTERFLY VALVE

Installation, Operation, and Maintenance Manual

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.

3.0 PARTS IDENTIFICATION

3.3 Parts Callout NPS 8 to 12 | DN 200 to 300

ITEM DESCRIPTION

Body

Body Bolt

Body Face O-ring

DiscStem Assembly

Liner

Backup Liner

Packing

Lower Bushing

Bearing Strip

 Spring

 Atmospheric Seal

 O-ring

 O-ring

 Bearing Strip

 Stopper

 Retaining Ring

 Stem Spacer

 Bottom Plate

 Hex Bolt

 Name Plate

 Drive Screw

30, 31

ASSEMBLY

ACRIS® SERIES 24/25 PFA LINED BUTTERFLY VALVE

Installation, Operation, and Maintenance Manual

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.

3.0 PARTS IDENTIFICATION

3.4 Parts Callout NPS 14 to 24 | DN 350 to 600

ITEM DESCRIPTION

Body

Body Bolt

Body Face O-ring

DiscStem Assembly

Liner

Backup Liner

 Sleeve Bearing

 Sleeve Bearing

 O-ring

 Washer

 Garter Spring

 Spring Carrier

 Key

 Name Plate

 Drive Screw

30, 31

ACRIS® SERIES 24/25 PFA LINED BUTTERFLY VALVE

Installation, Operation, and Maintenance Manual

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.

4.0 SHIPMENT, HANDLING, AND STORAGE

4.1 All Bray PFA lined valves are shipped with polyethylene or wooden

ﬂange protectors securely fastened to the valve bodies. The valves

may also be wrapped in a polyethylene or “shrink wrap” plastic,

depending on what valve model was ordered.

NOTICE

It is very important that the PFA surfaces of the valve (both the

liner and disc/stem) be protected prior to installation. The ﬂange

protectors should remain fastened to the valves, until just prior to

installation.

4.2 Use care when handling the valve. Do not drop or throw down the

valves, as damage to the PFA could result. PFA oers the highest

resistance to corrosion (in the pipeline), but can be damaged

prior to installation by improper handling. Do not contact the

PFA surfaces with any sharp or blunt object (knives, box cutters,

screwdrivers, punches, etc.) as damage to the PFA could occur.

4.3 The disc should be placed in the partially open position

(approximately 10 to 15 degrees open) during storage when

possible. Valves with spring return actuators can be stored prior

to installation as-is. Extra precautions should be taken with a

fail-open assembly to protect the open position disc.

4.4 Valves should be preferably stored indoors in a safe (clean and

dry) environment, in or on their original shipping container

or pallet prior to installation. Store away from any workshop

activities such as grinding, sand blasting, welding or painting,

for example.

4.5 Ship and store the valves so that no heavy loads are applied to

the valve bodies.

4.6 When moving the valves, use nylon straps around the valve

neck or use lifting eyes attached to body lugs. Never lift a gear

operated valve by the handwheel. (Figure 01)

ACRIS® SERIES 24/25 PFA LINED BUTTERFLY VALVE

Installation, Operation, and Maintenance Manual

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.

4.7 Lifting

WARNING

A potential hazard exists with handling valves. Failure to handle

valves properly may cause a valve to shift, slip, or fall — causing

serious injury or death and/or equipment damage.

NOTICE

The following information is for reference purposes only.

> Always use safe and proper techniques for lifting and support.

> Lift with properly rated lifting equipment.

> DO NOT lift valves with any adjoining pipe or other equipment

attached.

> Follow jurisdictional safety requirements.

INCORRECT

Straps through

seat opening.

CORRECT

Straps around

body or neck.

INCORRECT

Straps around

actuator body.

CORRECT

Straps around

body or neck.

INCORRECT

Straps through

seat opening.

CORRECT

Straps around

body.

INCORRECT

Straps through

gear handwheel.

CORRECT

Chains with

lifting lugs.

Figure 01: Approved lifting conﬁgurations.

NOTES:

> Keep body level when lifting.

> Ensure strap is secure around valve.

> Ensure strap is not twisted.

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