STEALTH INTERNATIONAL INC.The “Application Solution” Company®

E S T A B L I S H E D 1 9 9 1

T H E “ A P P L I C A T I O N S O L U T I O N ” C O M P A N Y ®

MODEL SDCVMunicipal Division Deflector Valves

Stealth Deflector Check ValveSetting New Standards For Product Evaluation

shaft more than 0.25” in the body and contain a Duralonmaterial to prevent galvanic corrosion. Shaft ends shallaccommodate limit switches for future field mount installation.Dual thrust bearings for shaft location shall be incorporated.

Packing & Seals: Retained live loaded dual packing shallbe incorporated by means of an upper o-ring housing in both shaft housings. The chevron packing will not requireadjustment and shall be live loaded and mechanicallyretained under full pressure with the back-up o-ring sleeveremoved. Dual O-Ring sleeves shall be incorporated, housingtwo inner, two outer viton o-rings in non-metallic non-corrosivesleeves. The O-Ring sleeves will be considered as no loadbearings. Both hubs containing the O-Ring seals shall notrequire adjustment and be replaceable without dewatering the system or removing the valve from service.

Bearings: Permanently lubricated dual external roller bearingsshall be incorporated and field replaceable without dewatering the system or removing the valve from service.External bearings shall be capable of twelve times the sheerstrength of the shaft. Internal bearings are not acceptable. All bearings shall be suitable for a corrosive environment.

Seats: All valves shall incorporate seats made of the samematerial as the body and disc unless resilient seats are addedas an option.

ALLOWABLE COMPONENT TO REPLACE PRIMARYSEALS WHILE THE PACKING IS UNDER PRESSURE

ALLOWABLE COMPONENT TO REPLACE PRIMARYSEALS WHILE THE PACKING IS UNDER PRESSURE

Note: With retainer and packing gland bearing removed1/8” LIVE LOADING

COMPRESSIONBODY HUB1

SELF TRAVELLING PRESSUREENERGIZED HIGH CYCLE

RETAINED CHEVRON PACKING

4

C-CLIP (BERYLLIUM COPPER) 3

O-RINGS316 RETAININGPACKING RING

2

PACKING GLANDBEARING

10

GASKET 12

RETAINER 7

6

PREDETERMINEDCOMPRESSION ZONE

(SELF-ADJUSTING)11

5

O-RING 9

VALVE SHAFT 8

BODY HUB1

SELF TRAVELLING PRESSUREENERGIZED HIGH CYCLERETAINED CHEVRON PACKING

4

C-CLIP (BERYLLIUM COPPER) 3316 RETAININGPACKING RING2

PREDETERMINEDCOMPRESSION ZONE(SELF-ADJUSTING)

11

VALVE SHAFT 8

T H E “ A P P L I C A T I O N S O L U T I O N ” C O M P A N Y ®

General: All valves shall incorporate locking pins for theopen and closed position with intermediate locking positionsfor rate of flow control. Counter weight arms shall incorporatethree keyways with adjustable arms for counterweights onboth sides of the valve. All valves shall be manufactured inCanada and be of the same design for the last five years.

Bodies: All bodies shall be flanged manufactured of A-36carbon steel to ANSI B16.1 class 125/150 and suitable forANSI 150# flanges or AWWA class E flanges as required. All bodies shall incorporate flow arrows and traceability tags.All bodies shall be coated internally with NSF approved coatings unless manufactured of 316 stainless steel. All bodies shall incorporate lifting lugs.

Discs: All discs shall be A-36 carbon steel with double solidblock hubs. Support ribs in line with the flow. Discs shall beNSF coated with minimum 3 mil thickness or approved coatings. All discs shall be tangentially pinned to the shaftbolted in place and field replaceable by means of taper pins.

Shafts: All shafts shall be one piece, 316 stainless steel, andsupported by external replaceable roller bearings. Shafts shallbe designed for zero deflection at full delta-P and velocity at thepoint of bearing support. Shafts shall incorporate one keyway in line with the disc and the body housing at both ends of theshaft. Valve body shaft journals shall not guide or support the

SDCV DEFLECTOR CHECK VALVE SUGGESTED SPECIFICATIONS

ROTARY OR LINEAR (Stealth IBC)

STANDARD FEATURES

1. Dual external roller bearings2. Low cost manufacturing

3. Low headloss, high capacity4. Maintenance free bearings5. Replaceable VITON O-Ring seals housed in non-metallic

no load sleeves6. Dual adjustable counter weights7. Dual counter weighted shafts8. Emergency O-Ring seals on journal 9. Material selection for potable water application

BENEFITS

1. Bearings are not exposed to the media and easily replaced2. Fabricated to meet face-to-face dimensions as required

for Industrial/Municipal applications3. High flow off-set disc and shaft design4. External bearing, shaft seizure is eliminated5. O-Ring seals are replaceable without dewatering the pipe

6. Twin counter weight (both sides)7. Adjusts opening and closing speed8. No leakage to atmosphere9. Elimination of stress attack on materials under stress from

chlorine or chloramines. Use of special c-clips

A

A 9

88

7

6

7

6

55

4

4

3

2

2

1

SECTION A-A

E

CB D

F

LOCKINGPIN(OPEN &CLOSED)

FLOW

A

G

H

T H E “ A P P L I C A T I O N S O L U T I O N ” C O M P A N Y ®

Cv Values

2024303642485460

500600750900

1050120013501500

24573364695768784798

113288146177185570209000

1994128817455836324788426

115506146634163240

13789200593172844095600427747498352

112200

757311702191752655637117464845901166992

49907658

124611712923111299663804143340

295344997505

1037713777180312289025970

17552626438565308667

114021447415950

6951131181730533852511664947040

76275445784830

108413771569

Inches mm 90°

Open80°

Open 70°

Open 60°

Open 50°

Open 40°

Open 30°

Open 20°

Open 10°

OpenValve Size

Dimensions

2024303642485460

500600750900

1050120013501500

20.0020.0020.0030.0042.0042.0042.0060.00

20.0024.0030.0036.0042.0048.0054.0060.00

27.5032.0038.7546.0053.0059.5066.2573.00

25.0029.5036.0042.7549.5056.0062.7569.25

19.0023.0029.0035.0041.0046.0052.0058.00

48.0052.0058.0064.0079.0088.0098.00

114.00

1.131.131.131.501.50

1.6251.6251.50

0.500.500.500.500.50

0.6250.6250.625

2.002.503.003.003.253.503.754.00

420632747897

1345152317321987

191287340408611692787903

Standard Bill of Materials123456789

BodyDiscShaftSeatBearingsSealsO-RingsCover ArmCoating

A-36 Carbon SteelA-36 Carbon Steel316 Stainless SteelMetalExternal Permanently Lubricated RollerChevron – V Type Self Contained Live LoadedVitonA-36 Carbon SteelNSF Approved

Valve I.D. to Suit Pipe I.D.Flange Drilling To ANSI B16.5 or customer requirements

Temperature Rating: Maximum Temperature 250°F/121°C

Pressure Rating:Maximum Pressure: 150 PSIG, Test Pressure 225 PSIG

1034 kPA 1551 kPA

Options:• Position Indicators• Retransmission Modules• Automation• Stainless Steel Body/Disc

• Resilient Seats: EPDM, Viton• Special face to face dimension• Adjustable travel stops

Valve SizeInches mm

A B C D E F G H ShaftDia. Lbs Kg

Weight

Distributed by:

Manufactured in Canada Printed in Canada

STEALTH INTERNATIONAL INC.The “Application Solution” Company®

E S T A B L I S H E D 1 9 9 1

ONTARIO – 1273 North Service Road East, Unit F6, Oakville ON L6H 1A7 – TEL 905 845 4500 • FAX 905 845 45052520c St. Laurent Boulevard, Suite 102, Ottawa ON K1H 1B1 – TEL 613 739 4626 • FAX 613 739 1679

BRITISH COLUMBIA – TEL 604 632 4657 • FAX 604 632 4658QUEBEC – 3460 Poirier, St. Laurent QC H4R 2J5 – TEL 514 332 4260 • FAX 514 331 3924 • TOLL FREE 1 800 361 5571

sales@stealthvalve.com www.stealthvalve.com®

VISIT OUR APPLICATION DATA SHEETS ON THE WEB

M MUNICIPAL I INDUSTRIAL P POWERC COMMERCIAL

• 2 4 H O U R E M E R G E N C Y VA LV E R E S P O N S E • 4 1 6 9 4 5 1 2 5 8 •

SDCV ORDERING CHART

Style

WType

SDVCSize

1 2Size

24”30”36”42”48”54”60”

Code

24303642485460

Style

WaferFlanged

Code

WF

WFWEFP

Body

1Disc

1Shaft

1Seat

1

Material of Construction

Material

A-36 Carbon Steel 316 SSSpecial

A-36 Carbon Steel 316 SSSpecial

316 SS17-4 PH

A-36 Carbon Steel 316SSEPDMViton

Code

123

123

12

1234

Body:

Disc:

Shaft:

Seat:

Coating

4Actuator

3Coating

Fused EpoxyPowder CoatingNSF Epoxy

Actuator

GearTwin LeverTwin WeightManualDeclutchableOverride

Code

123456

Code

123

Other Stealth Products:• Stealth IBC Energy Dissipating Valve 8”– 90”• Stealth Torque Tubes• Stealth Shaft Extensions• Stealth Rod Extensions• Stealth Mud Valves 4”– 12”• Stealth Damper Valves 3”–72”

FILL/DRAIN

RESERVOIR RESERVOIRDEFLECTOR CHECK VALVES