10 475 RP DI BODY N-PATTERN, GRV X GRV, LESS GATE VALVES

Item Number: 10-475L
1 1
$41,038.04
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • 10 inch Zurn Model 475 RP backflow preventer
  • N-Pattern design for vertical flow up and down
  • Grooved connections, less shut-off valves
  • Ductile iron body with FDA approved fusion epoxy finish
  • Patented center-stem guided Compound Check for low headloss
  • Maximum Working Pressure: 175 PSI
  • Meets NSF/ANSI/CAN 61 lead-free requirements
  • ASSE® Listed 1013

Description

The Zurn 10 Inch Model 475 Reduced Pressure Principle Backflow Preventer is engineered for high-hazard potable water applications, effectively safeguarding against backsiphonage and backpressure. Its space-saving "n-Pattern" design allows for vertical flow installations, ideal for compact or retrofit projects. Featuring a durable ductile iron body with FDA-approved fusion epoxy coating and grooved connections, this lead-free device (NSF/ANSI/CAN 61 compliant) includes a patented center-stem guided Compound Check for reliable, low headloss performance. It is ASSE® Listed 1013 and rated for 175 PSI maximum working pressure. Item number 10-475L.

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Connections

The Zurn Model 475 Reduced Pressure Principle Backflow Preventer features grooved end connections, specifically designed for secure attachment to steel pipe systems using appropriate grooved couplings. This 10 inch model comes without integral gate valves. Its "n-Pattern" configuration allows for installation in applications requiring both vertical flow up and vertical flow down, making it a versatile choice for compact new or retrofit installations.

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Additional Details

The Zurn Model 475 Reduced Pressure Principle Backflow Preventer, 10 inch with grooved connections and less gate valves, protects potable water lines from both backsiphonage and backpressure in high hazard applications. Designed for vertical flow up and vertical flow down, this "n-Pattern" unit is ideal for new or retrofit installations in compact spaces.

Application & Features

  • Provides protection where a potential health hazard exists in potable water supply lines
  • Designed for applications requiring vertical flow up and vertical flow down
  • "n-Pattern" shape for space-saving installations in compact areas
  • Equipped with a patented, center-stem guided Compound Check for low headloss, superior reliability, and unmatched performance
  • Single access cover reduces maintenance downtime and repair costs

Construction Materials

  • Main Valve Body: Ductile Iron ASTM A536 Grade 4
  • Access Covers: Ductile Iron ASTM A 536 Grade 4
  • Coatings: FDA Approved fusion epoxy finish
  • Internals: Stainless steel, 300 Series and NORYL™
  • Fasteners: Stainless Steel, 300 Series
  • Elastomers: EPDM (FDA approved) and Buna Nitrile (FDA approved)
  • Polymers: NORYL™
  • Springs: Stainless steel, 300 series

Specifications

  • Nominal Size: 10 inch
  • Flow Pattern: N-Pattern (Vertical Up/Down)
  • Body Material: Ductile Iron ASTM A536 Grade 4
  • Access Cover Material: Ductile Iron ASTM A 536 Grade 4
  • Coating: FDA Approved fusion epoxy finish
  • Internal Materials: Stainless steel, 300 Series, NORYL™
  • Fastener Material: Stainless Steel, 300 Series
  • Elastomers: EPDM (FDA approved), Buna Nitrile (FDA approved)
  • Polymer Material: NORYL™
  • Spring Material: Stainless steel, 300 series
  • Connection Type: Grooved (AWWA C606-87)
  • Valves: Less Shut-off Valves
  • Maximum Working Water Pressure: 175 PSI
  • Maximum Working Water Temperature: 140°F
  • Hydrostatic Test Pressure: 350 PSI

Dimensions & Weight (approximate)

  • Overall Length (Dimension B, Less Gate Valves): 44 7/16 inches (1129 mm)
  • Height (Dimension A): 29 7/32 inches (737 mm)
  • Weight (Less Shutoff Valves): 423 lbs (192 kg)

Certificates & Approvals

  • ASSE® Listed 1013
  • AWWA Compliant C511 (with gates only)
  • AWWA Compliant C550
  • CSA® Certified B64.4 (4" thru 8")
  • CUPC® Listed
  • UL® Classified
  • C-UL® Classified
  • FM® Approved
  • NYC MEA 468-99-M VOL 4
  • Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
  • Meets the requirements of NSF/ANSI/CAN 61 (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

FAQs

What is the primary application of the Zurn Model 475 Backflow Preventer?

It is designed for installation on potable water lines to protect against backsiphonage and backpressure of contaminated water, especially in high hazard applications where a potential health hazard exists.

What type of flow applications is the Model 475 suitable for?

The Model 475, with its "n-Pattern" design, is suitable for applications requiring both vertical flow up and vertical flow down. This makes it ideal for compact new or retrofit installations.

What are the key construction materials of this backflow preventer?

The main valve body and access covers are made of durable ductile iron with an FDA-approved fusion epoxy finish. Internal components include stainless steel and NORYL™, with EPDM and Buna Nitrile elastomers.

Is this Zurn 475 model compliant with lead-free standards?

Yes, the Zurn Model 475 meets the requirements of NSF/ANSI/CAN 61, ensuring compliance with lead-free standards (0.25% max weighted average lead content). It is also ASSE® Listed 1013.

What type of connections does this specific 10 inch Zurn 475 have, and does it include shut-off valves?

This model features grooved end connections, designed for steel pipe systems. As indicated by "LESS GATE VALVES" in the product name, it does not include integral shut-off valves.

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