rsfc non slam resilient seated check valve · 2017. 9. 19. · non slam resilient seated check...

RSFCNON SLAM RESILIENT SEATED CHECK VALVEACCORDING TO AS4794

FEATURES

Non slam.

100% sealing.

Non clogging.

Lower power consumption due to lower headloss.

Will not flutter like traditional swing check valves.

One moulded part (no maintenance).

No counterweight needed.

Meets AS4794 (material & dimensional standards).

CertificationsApproved: -AS4020 According to: -AS4794

TECHNICAL DATA

Size Range DN80-DN600

Pressure Classes PN16

Face to Face According to AS4794 (excluding 500mm)

Temperature Range 1˚C to +80˚ (higher on request)

Flange Connection AS4087, Class 16

Pressure Testing To AS4794

Coating AS4020 approved epoxy

RSFCNON SLAM RESILIENT SEATED CHECK VALVE ACCORDING TO AS4794

Designs, materials and specifications shown are subject to change without notice due to our continuing program of product development.RSFC_V2a_20170517

All content is protected by Copyright and is owned and/or licensed by AVFI Pty Ltd. Copyright© AVFI Pty Ltd.

AVFI Sales T: 1300 789 256 E: [email protected] W: www.avfi.com.au Australian Capital Territory, Queensland, New South Wales, Northern Territory, South Australia, Tasmania, Victoria, Western Australia, & New Zealand VIADUX PTY LTD PO BOX 141 FAIRFIELD, NEW SOUTH WALES 1860 AUSTRALIA VIADUX.COM.AU / PHONE 1300VIADUX

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FEATURES

• Nonslam.• 100%sealing.• Nonclogging.• Lowerpowerconsumptionduetolowerheadloss.• Willnotflutterliketraditionalswingcheckvalves.• Onemouldedpart(nomaintenance).• Nocounterweightneeded.• MeetsAS4794(material&dimensionalstandards).

APPROVED ACCORDING TO

AS4020 AS4794

TECHNICAL DATA

SizeRange: DN80-DN600

PressureClasses: PN16

Facetoface: AccordingtoAS4794(excluding500mm)

TemperatureRange: 1˚Cto80˚C(higheronrequest)

FlangeConnection: AS4087,Class16

PressureTesting: ToAS4794

Coating: AS4020approvedepoxy.

VIADUX PTY LTD PO BOX 141 FAIRFIELD, NEW SOUTH WALES 1860 AUSTRALIA / VIADUX.COM.AU / PHONE 1300VIADUX

All Viadux trademarks and logos are owned by Viadux Pty Ltd. All other brand or product names are trademarks or registered marks of their respective owners. Because we are continuously improving our products and services, Viadux reserves the right to change specifications without prior notice.


BENEFITSThe RSFC check valve offers efficiency and reliability due to its simple but effective design. Low head loss is achieved by streamlined shape of body, disc and cover whilst offering 100% flow area with no restrictions. In addition water hammer and disc flutter is virtually eliminated and there is no need for a counterweight. This reduces power consumption, saving money and making it environmentally friendly.

The RSFC check valves short design stroke of 35° provides faster sealing compared to conventional swing check of 80-90°. This natural closing minimizes flow reversal and means no slamming as seen in conventional check valves. This design also means that the disc is pushed up against body, even at low flow, eliminating disc “flutter” that can cause high wearing of shafts and bearings. Power savings are also achieved as the RSFC does not require a weight to keep the disc in the flow or for closure of disc.

The heart of the RSFC is the disc assembly and features:

Special precision moulded EPDM one piece disc.

Internal steel re-enforcement disc for positive closure.

Nylon re-enforcement to maintain shape and strength.

Raised soft sealing face for 100% sealing at low or highpressures. Eliminates metal to metal disc face wear.

One moving part means no shafts, bearings or disc/body rings to maintain.

Quick and easy field access.


Designs, materials and specifications shown are subject to change without notice due to our continuing program of product development.RSFC_Va_20170517



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BENEFITS

TheRSFCcheckvalveoffersefficiencyandreliabilityduetoitssimplebuteffectivedesign.Lowheadlossisachievedbystreamlinedshapeofbody,discandcoverwhilstoffering100%flowareawithnorestrictions.Inadditionwaterhammeranddiscflutterisvirtuallyeliminatedandthereisnoneedforacounterweight.Thisreducespowerconsumption,savingmoneyandmakingitenvironmentallyfriendly.

Shortdiscstrokeof35°meansquickclosingandnonslam(seeFigure1).

FlangedanddrilledtoAS4087CL16.

Onemovingpartmeansvirtuallymaintenancefree.

Allstainlesssteelfasteners.Domedcover.

Onepiecediscwithsteelandnylonre-enforcement,100%driptightsealing.

Fullflowareafornonclogandlowheadloss.

LengthmeetsAS4794(excluding500mm)

DuctileIronbodyandbonnetfusionbondedepoxycoated,AS4020approved.

TheRSFCcheckvalvesshortdesignstrokeof35°providesfastersealingcomparedtoconventionalswingcheckof80-90°.Thisnaturalclosingminimizesflowreversalandmeansnoslammingasseeninconventionalcheckvalves.Thisdesignalsomeansthatthediscispushedupagainstbody,evenatlowflow,eliminatingdisc“flutter”thatcancausehighwearingofshaftsandbearings.PowersavingsarealsoachievedastheRSFCdoesnotrequireaweighttokeepthediscinthefloworforclosureofdisc.

35°

Stro

ke100% Flow80° to

90°

Stroke

Figure1.TypicalswingcheckvsRSFCcheckvalvetraveldistance.

Swingcheckvalve

TheheartoftheRSFCisthediscassemblyandfeatures:

• SpecialprecisionmouldedEPDMonepiecedisc.• Internalsteelre-enforcementdiscforpositiveclosure.• Nylonre-enforcementtomaintainshapeandstrength.• Raisedsoftsealingfacefor100%sealingatloworhighpressures.Eliminatesmetaltometaldiscfacewear.

• Onemovingpartmeansnoshafts,bearingsordisc/bodyringstomaintain.

• Quickandeasyfieldaccess.

RSFCcheckvalve


Designs, materials and specifications shown are subject to change without notice due to our continuing program of product development.RSFC_Va_20170517



page

2BENEFITS

TheRSFCcheckvalveoffersefficiencyandreliabilityduetoitssimplebuteffectivedesign.Lowheadlossisachievedbystreamlinedshapeofbody,discandcoverwhilstoffering100%flowareawithnorestrictions.Inadditionwaterhammeranddiscflutterisvirtuallyeliminatedandthereisnoneedforacounterweight.Thisreducespowerconsumption,savingmoneyandmakingitenvironmentallyfriendly.

Shortdiscstrokeof35°meansquickclosingandnonslam(seeFigure1).

FlangedanddrilledtoAS4087CL16.

Onemovingpartmeansvirtuallymaintenancefree.

Allstainlesssteelfasteners.Domedcover.

Onepiecediscwithsteelandnylonre-enforcement,100%driptightsealing.

Fullflowareafornonclogandlowheadloss.

LengthmeetsAS4794(excluding500mm)

DuctileIronbodyandbonnetfusionbondedepoxycoated,AS4020approved.

TheRSFCcheckvalvesshortdesignstrokeof35°providesfastersealingcomparedtoconventionalswingcheckof80-90°.Thisnaturalclosingminimizesflowreversalandmeansnoslammingasseeninconventionalcheckvalves.Thisdesignalsomeansthatthediscispushedupagainstbody,evenatlowflow,eliminatingdisc“flutter”thatcancausehighwearingofshaftsandbearings.PowersavingsarealsoachievedastheRSFCdoesnotrequireaweighttokeepthediscinthefloworforclosureofdisc.

35°

Stro

ke100% Flow80° to

90°

Stroke

Figure1.TypicalswingcheckvsRSFCcheckvalvetraveldistance.

Swingcheckvalve

TheheartoftheRSFCisthediscassemblyandfeatures:

• SpecialprecisionmouldedEPDMonepiecedisc.• Internalsteelre-enforcementdiscforpositiveclosure.• Nylonre-enforcementtomaintainshapeandstrength.• Raisedsoftsealingfacefor100%sealingatloworhighpressures.Eliminatesmetaltometaldiscfacewear.

• Onemovingpartmeansnoshafts,bearingsordisc/bodyringstomaintain.

• Quickandeasyfieldaccess.

RSFCcheckvalve




MATERIAL SPECIFICATIONS & PARTS LIST No Description Material / Standard

1 Body Ductile Iron (GGG50)2 Flapper WCB+EPDM (Standard) WCB+NBR (On Request)3 Gasket

NBR4 Bonnet Ductile Iron (GGG50)5 Pin SS3166 Bolt SS3167 Washers SS3168 Nuts SS316

FxF

ØD

ØD

1

ØD

2

DN

b

b1

n-Ø

d1

DN

600

DN

500

DN

450

DN

375

DN

300

DN

200

DN

250

DN

150

DN

100

DN

80

DN

65

DN

50

1 10 50 500 1000 5000 100001005

5.0

1.0

0.5

0.1

0.01

0.05

ME

TER

S O

F H

EA

DLO

SS

FLOW IN CUBIC METERS PER HOUR

V=4M/S

V=2M/S

V=1M/S

DN

400

DN

350

V=6M/S





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NO.

DN FxF b b1 ØD ØD1 ØD2 n-Ød1

80 260 18 3 185 146 122 4-18 15

100 330 20 3 215 178 154 4-18 21

150 410 23 3 280 235 211 8-18 40

200 540 23 3 335 292 268 8-18 76

225 610 24 3 370 324 300 8-18 93

250 640 24 3 405 356 328 8-22 122

300 700 30 4 455 406 378 12-22 218

375 820 33 4 550 495 463 12-26 247

400 914 33 4 580 521 489 12-26 311

450 970 33 4 640 584 552 12-26 416

500 978 35 4 705 641 609 16-26 520

600 1220 42 5 825 756 720 16-30 790

RSFC DN50 - DN600

Weight(Kg)

DIMENSIONS (MM)

MATERIAL SPECIFICATIONS & PARTS LIST

DESCRIPTION MATERIAL

1 Body DuctileIron(GGG50)

2 Flapper WCB+EPDM(Standard)WCB+NBR(OnRequest)

3 Gasket NBR

4 Bonnet DuctileIron(GGG50)

5 Pin SS316

6 Bolt SS316

7 Washers SS316

8 Nuts SS316

VALVE HEADLOSS

A

1

5

3

6 7

4

2

8

DETAIL VIEW A

EPDM

STAINLESSSTEEL

NYLON REINFORCED

WCB




DIMENSIONS (MM)RSFC

DN50-DN600

DN FxF b b1 ØD ØD1 ØD2 n-Ød1 Weight (kg)

80 260 18 3 185 146 122 4-18 15

100 330 20 3 215 178 154 4-18 21

150 410 23 3 280 235 211 8-18 40

200 540 23 3 335 292 268 8-18 76

225 610 24 3 370 324 300 8-18 93

250 640 24 3 405 356 328 8-22 122

300 700 30 4 455 406 378 12-22 218

375 820 33 4 550 495 463 12-26 247

400 914 33 4 580 521 489 12-26 311

450 970 33 4 640 584 552 12-26 416

500 978 35 4 705 641 609 16-26 520

600 1220 42 5 825 756 720 16-30 790


FxF

ØD

ØD

1

ØD

2

DN

b

b1

n-Ø

d1

DN

600

DN

500

DN

450

DN

375

DN

300

DN

200

DN

250

DN

150

DN

100

DN

80

DN

65

DN

50

1 10 50 500 1000 5000 100001005

5.0

1.0

0.5

0.1

0.01

0.05

ME

TER

S O

F H

EA

DLO

SS

FLOW IN CUBIC METERS PER HOUR

V=4M/S

V=2M/S

V=1M/S

DN

400

DN

350

V=6M/S





page

3

NO.

DN FxF b b1 ØD ØD1 ØD2 n-Ød1

80 260 18 3 185 146 122 4-18 15

100 330 20 3 215 178 154 4-18 21

150 410 23 3 280 235 211 8-18 40

200 540 23 3 335 292 268 8-18 76

225 610 24 3 370 324 300 8-18 93

250 640 24 3 405 356 328 8-22 122

300 700 30 4 455 406 378 12-22 218

375 820 33 4 550 495 463 12-26 247

400 914 33 4 580 521 489 12-26 311

450 970 33 4 640 584 552 12-26 416

500 978 35 4 705 641 609 16-26 520

600 1220 42 5 825 756 720 16-30 790

RSFC DN50 - DN600

Weight(Kg)

DIMENSIONS (MM)


DESCRIPTION MATERIAL

1 Body DuctileIron(GGG50)

2 Flapper WCB+EPDM(Standard)WCB+NBR(OnRequest)

3 Gasket NBR

4 Bonnet DuctileIron(GGG50)

5 Pin SS316

6 Bolt SS316

7 Washers SS316

8 Nuts SS316

VALVE HEADLOSS

A

1

5

3

6 7

4

2

8

DETAIL VIEW A

EPDM

STAINLESSSTEEL

NYLON REINFORCED

WCB

rsfc non slam resilient seated check valve · 2017. 9. 19. · non slam resilient seated check...

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