Dual Disc Check Valves, AWWA C518, WQA Lead Free, UL/FM Apprived, Val-Matic®

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The Dual Disc^® Check Valve with its compact wafer design and low cost have made it a popular choice when space and price are major factors in valve selection. The compact design features non-slam spring-assisted closing.

Specifications • Materials of Construction • Dimension Drawings • Instruction Manuals • Technical Data

Wafer Style

Grooved End

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NSF/ANSI 372 Certified Lead-Free by WQA
NSF/ANSI 61 Certified
UL Approved 2 1/2" to 12"
FM Approved 2 1/2" to 16"
ANSI Class 125 and ISO PN 10 and PN 16 connections for Wafer
IPS connections for Grooved End
Meets AWWA C518
Manufactured under a certified ISO 9001 quality system
Wafer Style available in sizes 2"-60"
Grooved End Style available in sizes 2”- 12”
Available for Air Service - *Contact Factory*
Cycle tested 50,000 cycles to assure long, trouble free life

Lift and Pivot Action - reduces seat wear, prolongs seat life
Stabilization Spheres - prevent vibration and wear
Disc Seal Overlap - provides positive seal, prevents seat distortions
Disc Stabilization - prevents disc flutter
Flow Sensitive Closure - spring assisted closure minimizes the potential for water hammer
Pressure Sensitive Vulcanized Seats - provide tight closure at both low and high pressures
Body Alignment Fins - provide precise alignment in ANSI 125 and ISO PN10 and PN16 installations


*2 1/2" - 12"	*2 1/2" - 16"

Specifications • Materials of Construction • Dimension Drawings • Instruction Manuals • Technical Data

Specifications
Valve Size	Product Description	Drawing Number
2" - 12"	8800 Dual Disc^® Check Valve - UL/FM Approved	VM-8802-S
14" - 60"	8800 Dual Disc^® Check Valve	VM-8814-S

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Standard Materials of Construction (contact factory for optional materials)
Valve Size	Product Description	Drawing Number
2" - 12"	8800 Dual Disc^® Wafer Style & Grooved End - UL/FM Approved	VM-8802W-M
2" - 12"	8800 Dual Disc^® Wafer Style & Grooved End - UL/FM Approved (Lead Free)	VM-8802W.1-M
14" - 30"	8800 Dual Disc^® Wafer Style	VM-8814-M
14" - 48"	8700 Dual Disc^® Wafer Style - ANSI Class 250	VM-8714-M
36" - 54"	8800 Dual Disc^® Wafer Style	VM-8836-M

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Dimension Drawings
Valve Size	Product Description	Drawing Number	CAD Version
2" - 12"	8800 Dual Disc^® Grooved End - UL/FM Approved	VM-8802G
2" - 12"	8800 Dual Disc^® Wafer Style - UL/FM Approved	VMC-8802W	CAD-8802W
14" - 30"	8800 Dual Disc^®Wafer Style	VMC-8814	CAD-8814
14" - 30"	8800 Dual Disc^®Lug Style	VMC-8814L	CAD-8814L
14" - 48"	8700 Dual Disc^®Wafer Style - ANSI Class 250	VM-8714
36" - 60"	8800 Dual Disc^® Wafer Style	VM-8836
36" - 60"	8800 Dual Disc^® Lug Style	VM-8836L
2" - 12"	8900 Dual Disc^® Wafer Style - Air Service	VM-8902W
14" - 24"	8900 Dual Disc^® Wafer Style - Air Service	VM-8914

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Instruction Manuals
Valve Size	Product Description	Drawing Number
2" - 12"	Dual Disc^® Check Valve - UL/FM Approved	DDCV-OM3
14" - 60"	Dual Disc^® Check Valve	DDCV-OM2

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Technical Data
Description	Drawing Number
Dynamic Characteristics of Various Check Valves	SS-1886
Dynamic Characteristics	SS-1465
Check Valve Applications/Features	Chart
Headloss Chart	SS-336
Air Capacity for Series 8900	SS-2120
UL Certification	SS-2479
FM Certification	SS-2477
Dual Disc^® Check Valve	CAD - PDF

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