Zurn Wilkins 6-350ASTDALMOSYG 6" Double Check Valve Detector Assembly (DCDA) Stainless Steel Body, OSY Gate Valves, Grooved Inlet / Outlet Connections, Less Water Meter, Lead-Free.
Features & Benefits:
- Short lay-length for small space installation
- Reliable performance and improved flow characteristics from patented Compound Check, allowing for installation in lower-pressure systems
- Available as 350ASTDAR for backflow replacements/retrofit
- Lower maintenance costs from corrosion resistance of stainless body
- Multiple shut-off and end connections available for installation versatility
- Available in flanged, grooved, or grooved X flanged end connections for installation versatility
Application:
Designed for installation on water lines in fire protection systems to protect against both backsiphonage and backpressure of polluted water into the potable water supply. Model 350ASTDA shall provide protection where a potential health hazard does not exist. Incorporates metered by-pass to detect leaks and unauthorized water use.
Standards Compliance (Horizontal & Vertical):
- ASSE® Listed 1015
- AWWA Compliant C510 (with gates only), and C550
- UL® Classified
- C-UL® Classified
- FM® Approved
- CSA® Certified
- IAPMO® Listed
- Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California.
- Meets the requirements of NSF/ANSI 61* *(0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)
Materials:
- Main Valve Body: 304L Stainless Steel
- Access Covers: 304L Stainless steel
- Internals: Stainless steel, 300 Series NORYL™
- Fasteners and Springs: Stainless Steel, 300 Series
- Seal Ring: EPDM (FDA approved)
- O-ring: Buna Nitrile (FDA approved)
- Polymers: NORYL™
Features:
- Sizes: 2 1/2”, 3”, 4”, 6”, 8”, 10”
- Maximum Working Water Pressure: 175 PSI
- Maximum Working Water Temperature: 140˚F
- Hydrostatic Test Pressure: 350 PSI
- End Connections
- (Grooved for steel pipe) AWWA C606
- (Flanged) ANSI B16.1 Class 125
Typical Installation:
Local codes shall govern installation requirements. Unless otherwise specified, the assembly shall be mounted at a minimum of 12" (305mm) and a maximum of 30" (762mm) above adequate drains with sufficient side clearance for testing and maintenance. The installation shall be made so that no part of the unit can be submerged.
Technical Documentation:
- Zurn Wilkins 6-350ASTDALMOSYG: Specification Submittal
- Zurn Wilkins 6-350ASTDALMOSYG: Repair Kit Guide
- Zurn Wilkins 6-350ASTDALMOSYG: Installation and Maintenance
Media:
Zurn Wilkins 6-350AST 6" Double Check Valve Assembly (DCVA) Stainless Steel Body Non-Rising Stem Lead-Free Maintenance Video:
Zurn Wilkins 6-350AST 6", Why Does Zurn Wilkins Call it a Compound Check, Video:
Zurn Wilkins 6-350AST 6", 300AST Stainless Steel Technological Advancements, Video:
Zurn Wilkins 6-350AST 6", Zurn Wilkins Compound Check Removal, Video:
Cross Reference:
Zurn Wilkins 6-350AST 6" Double Check Valve Assembly (DCVA) Stainless Steel Body Non-Rising Stem Lead-Free Crosses:
- Ames 2000SS, C200, M200
- Conbraco 4A-100
- Watts LF757, LF709, LF774
- Febco 805YD, 850, 857
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