Archived

450STDAR Double Check Detector Assembly, 4" to 10", Lead-Free*

Designed for drop in replacement of Zurn Wilkins Model 450DA and new installation on water lines in fire protection systems to protect against both backsiphonage and backpressure of polluted water into the potable water supply. Model 450STDAR shall provide protection where a potential health hazard does not exist. Incorporates metered by-pass to detect leaks and unauthorized water use. Meets the requirements of NSF/ANSI 61*

*Product contains weighted average lead content less than 0.25% for wetted surfaces.

Specification

The Double Check Detector Backflow Prevention Assembly shall be certified to NSF/ANSI 61, ASSE® Listed 1048, and supplied with full port gate valves. The main body, spool, and access cover shall be 304L Stainless Steel, the seat ring and check valve shall be Noryl™ (NSF Listed), the stem shall be stainless steel (ASTM A 276) and the seat disc elastomers shall be EPDM. The first and second check valves shall be accessible for maintenance without removing the device from the line. The Double Check Detector Backflow Prevention Assembly shall be a ZURN WILKINS Model 450STDAR.

Technical specification

Unique ref.zurn-450stdar
Collection setNon-Return Valves for Liquid Services
CollectionBackflow Prevention Valves
TypeObject (single object)
Date of publishing2017-11-16
Edition number1

Links

Product urlhttp://www.zurn.com/products/water-safety/backflow-prevention/450stdar
Installation instructionshttp://www.zurn.com/products/water-safety/backflow-prevention/450stdar#Resources
Product certificationhttp://www.zurn.com/products/water-safety/backflow-prevention/450stdar#Features
Technical descriptionhttp://www.zurn.com/media-library/web_documents/pdfs/specsheets/bf-450stdar

Material mainStainless steel
Material secondaryStainless steel
Designed inUnited States
Manufactured inUnited States

Classification

BIMobject CategoryPlumbing - Valves
IFC classificationValve
UNSPSC nameValves
UNSPSC code401416
Uniclass 1.4 CodeL7136
Uniclass 1.4 DescriptionValves
Uniclass 2.0 CodePR-94-94-xx
Uniclass 2.0 DescriptionBackflow Prevention Devices
Uniclass 2015 CodePr_65_54_95_05
Uniclass 2015 DescriptionBackflow prevention devices
NBS Reference Code94-94-xx
NBS Reference DescriptionBackflow Prevention Devices
CSI MasterFormat 2014 Code40 05 67.16
CSI MasterFormat 2014 TitleDouble Check Valve Assembly Backflow Preventers for Process Service
OmniClass Number23-27 31 11
CSI UniFormat II CodeD3040
CSI UniFormat II TitleDistribution Systems